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Journal articles on the topic 'Local power system'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Kumar, Ajit. "Power System Stabilizers Design for Multimachine Power Systems Using Local Measurements." IEEE Transactions on Power Systems 31, no. 3 (May 2016): 2163–71. http://dx.doi.org/10.1109/tpwrs.2015.2460260.

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2

Ohnishi, Tokuo, Masaya Furuhashi, and Kensuke Kawasaki. "Solar Power Generation System Installed Individually for Local Power Network System." IEEJ Transactions on Industry Applications 115, no. 12 (1995): 1448–55. http://dx.doi.org/10.1541/ieejias.115.1448.

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3

Shavelkin, A., and I. Shvedchykova. "MANAGEMENT OF GENERATION AND REDISTRIBUTION ELECTRIC POWER IN GRID-TIED PHOTOVOLTAIC SYSTEM OF LOCAL OBJECT." Tekhnichna Elektrodynamika 2020, no. 4 (June 26, 2020): 55–59. http://dx.doi.org/10.15407/techned2020.04.055.

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4

Zhang, Richard Y., Javad Lavaei, and Ross Baldick. "Spurious Local Minima in Power System State Estimation." IEEE Transactions on Control of Network Systems 6, no. 3 (September 2019): 1086–96. http://dx.doi.org/10.1109/tcns.2019.2920586.

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5

Valenti, Michael. "Local Connections." Mechanical Engineering 122, no. 07 (July 1, 2000): 50–53. http://dx.doi.org/10.1115/1.2000-jul-1.

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This article discusses integration of microturbines with energy storage systems and fuel cells for the development of new applications in distributed energy generation. Williams Energy Services integrated two Capstone Model 330 microturbines and one PowerBlock energy storage system to power an oil derrick near the Denver airport. A key microturbine component is its recuperator, which transfers heat from exhaust gas to air that is sent to the combustor. Preheating combustion air reduces the fuel consumption of the microturbine and increases its overall efficiency. One hybrid microturbine power plant now in commercial service was developed by Williams Distributed Power Services of Tulsa, Oklahoma. The Williams energy conversion unit (ECU) incorporates two Model 330-kilowatt microturbines developed by Capstone Turbine Corp. of Woodland Hills, California, and the PowerBlock energy storage device developed by Powercell Corp. of Burlington, MA. The ECU provides reliable 480-volt power when the grid power to the oil field is interrupted.

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6

Opryshko, V. P. "POWER SUPPLY MODE CONTROL IN THE LOCAL MICROGRID SYSTEM." Tekhnichna Elektrodynamika 2016, no. 4 (June 14, 2016): 77–79. http://dx.doi.org/10.15407/techned2016.04.077.

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7

Miranian, Arash, and Kumars Rouzbehi. "Nonlinear Power System Load Identification Using Local Model Networks." IEEE Transactions on Power Systems 28, no. 3 (August 2013): 2872–81. http://dx.doi.org/10.1109/tpwrs.2012.2234142.

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8

Fox-Rogers, Linda, and Enda Murphy. "Informal strategies of power in the local planning system." Planning Theory 13, no. 3 (June 25, 2013): 244–68. http://dx.doi.org/10.1177/1473095213492512.

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9

Barreiros, José A. L., André M. D. Ferreira, and Carlos Tavares da Costa. "A NEURAL POWER SYSTEM STABILIZER FROM LOCAL LINEAR CONTROLLERS." IFAC Proceedings Volumes 35, no. 1 (2002): 407–11. http://dx.doi.org/10.3182/20020721-6-es-1901.01219.

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10

Sakellaridis, Nikos G., Michael E. Karystianos, and Costas D. Vournas. "Local and global bifurcations in a small power system." International Journal of Electrical Power & Energy Systems 33, no. 7 (September 2011): 1336–47. http://dx.doi.org/10.1016/j.ijepes.2011.06.012.

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11

Zhou, Bowen, and Tim Littler. "Local storage meets local demand: a technical solution to future power distribution system." IET Generation, Transmission & Distribution 10, no. 3 (February 18, 2016): 704–11. http://dx.doi.org/10.1049/iet-gtd.2015.0442.

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12

Ashizawa, Satoshi, Takeo Oomichi, Masashi Hirose, Daisuke Hirako, Kurato Tori, and Kazuki Koide. "S1510103 Development of biomethane power generation system for local production and local consumption." Proceedings of Mechanical Engineering Congress, Japan 2015 (2015): _S1510103——_S1510103—. http://dx.doi.org/10.1299/jsmemecj.2015._s1510103-.

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13

Park, Y. "Application of expert system to power system restoration in local control center." International Journal of Electrical Power & Energy Systems 17, no. 6 (December 1995): 407–15. http://dx.doi.org/10.1016/0142-0615(94)00011-5.

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14

Ohtsuka, Kei, Yasuo Morioka, and Atsushi Ishii. "Stability Enhancement in a Local Power System using a Multimachine Control System taking Primary Power System Fluctuations into Consideration." IEEJ Transactions on Power and Energy 118, no. 1 (1998): 15–22. http://dx.doi.org/10.1541/ieejpes1990.118.1_15.

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15

Byk, Felix, Yana Frolova, and Ludmila Myshkina. "The Efficiency of Distributed and Centralized Power System Integration." E3S Web of Conferences 114 (2019): 05007. http://dx.doi.org/10.1051/e3sconf/201911405007.

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The existing centralized power supply system has the alternative due to distributed generation. By certain conditions distributed cogeneration allows to increase the reliability and quality of power supply and to reduce the cost of electricity for consumers. Therefore, a lot of energy-intensive consumers switched to their own power supply systems, as it turned out to be a competitive technical solution. The total gasification of the country’s regions and the presence of domestic manufacturers of gas turbine and gas piston power plants accelerated this process. Nowadays local power systems are emerging with cogeneration plants are the main source of heat and electricity there. The feasibility justification of the kind and type of generation is determined by many factors, including circuit-mode parameters in the local power system and adjacent network. Local power systems based on the principles of self-balance are proposed to name as energy cells. The integration of energy cells with regional power system increases the technical and economic effectiveness of power supply system for consumers. The proposed power systems transition leads to certain systemic effects. Received effects are depending on functions of distributed generation. This paper explores the impact of scheme and mode factor on the technical effects.

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16

Küpper, Herbert. "The Concept of Multilayered Statehood in the System of Russian Federalism." Review of Central and East European Law 38, no. 3-4 (2013): 239–66. http://dx.doi.org/10.1163/15730352-00000003.

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The Russian state has a long tradition of top-to-bottom centralism. Nevertheless, Russia’s 1993 Constitution is based on both federalism and local autonomy, principles that create and require multilayered sovereignty, distributed over a larger number of political power centers, which is alien to the Russian tradition of centralized sovereignty. During the Boris El’tsin era, state power was decentralized to a certain extent, and regions, local governments, economies, and civil society were given room to act independently from the Kremlin’s tutelage. Nonetheless, many felt that this was chaotic. Vladimir Putin’s ‘consolidation of vertical power’ reduced federalism and local autonomy to a facade behind which traditional top-to-bottom centralism has been re-established. In reducing federalism to a mere show, Putin has been able to rely on Soviet traditions. Furthermore, central power instrumentalizes local autonomy in order to further reduce the powers of federal entities, i.e., subjects of the Russian Federation. Thus, political reality has returned to Russian traditions, whereas the text of the Constitution preserves the ‘outdated’ institutions of federalism and local autonomy.

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17

Wang, Guanhong, Zhichen Geng, Dongping Ai, Wei Wei, Ying Li, Gan Li, Liming Jin, Wenfeng Li, and Yong Tang. "Influence of Hydro Turbine Supervision and Control System on Frequency Characteristics of High Proportion Hydropower System." E3S Web of Conferences 261 (2021): 01036. http://dx.doi.org/10.1051/e3sconf/202126101036.

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With the construction of interconnected power grid and the rapid development of clean energy, the frequency problem of power system is becoming increasingly prominent. The problem of ultra-low frequency oscillation affects the stability of system frequency. In order to analyze the frequency regulation characteristics of the system, it is necessary to study the local active power control link and stability calculation model of the hydropower plant computer monitoring system. In this paper, the influence of the local active power control link of the monitoring system on the system frequency small signal stability is studied, and the model is built in the simulation program. Through the simulation of 4-machine-2 regional power grid, the influence characteristics of local active power control on frequency dynamic damping level are verified. In the example of large power grid, the coordination between the local active power control of the monitoring system and the speed regulation system of hydropower units is comprehensively considered, the suggestion of coordination of multi-level frequency modulation resources to system frequency regulation is put forward.

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18

Udalov, Sergei, Andrei Achitaev, Boris Bochenkov, and Alexandr Pristup. "Adjustability of wind powerinstallation in a local power supply system." Energy-Safety and Energy-Economy 3 (June 2017): 33–40. http://dx.doi.org/10.18635/2071-2219-2017-3-33-40.

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19

HAMDAN, A. M. A. "MODES, STATE VARIABLES, AND LOCAL BIFURCATIONS IN POWER SYSTEM DYNAMICS." Electric Machines & Power Systems 21, no. 2 (March 1993): 241–55. http://dx.doi.org/10.1080/07313569308909650.

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20

Sonnino, Roberta. "Local foodscapes: place and power in the agri-food system." Acta Agriculturae Scandinavica, Section B - Soil & Plant Science 63, sup1 (June 2013): 2–7. http://dx.doi.org/10.1080/09064710.2013.800130.

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21

Hoa Vu and J. C. Agee. "Comparison of power system stabilizers for damping local mode oscillations." IEEE Transactions on Energy Conversion 8, no. 3 (1993): 533–38. http://dx.doi.org/10.1109/60.257070.

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22

Balinskyi, V. V. "UKRAINE LOCAL GOVERNMENT SYSTEM IN THE CONDITIONS OF POWER DECENTRALIZATION." Public management and administration in Ukraine, no. 24 (2021): 98–101. http://dx.doi.org/10.32843/pma2663-5240-2021.24.17.

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23

Guo, Yun Bo, and Li Na Xu. "Layered, Partition, Local Equilibrium of Reactive Power Compensation." Applied Mechanics and Materials 291-294 (February 2013): 2500–2503. http://dx.doi.org/10.4028/www.scientific.net/amm.291-294.2500.

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This paper presents a principle that compensation balance is flexible used in a certain context of the power grid load growth, in order to keep the system voltage stability and system to maximize the economic operation. Some questions are analyzed and demonstrated which.

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24

Shi, Rui Jing, Xiao Chao Fan, Feng Ting Li, and Bo Wei. "Application of Power Communication System in Wind Power Plant." Advanced Materials Research 724-725 (August 2013): 655–58. http://dx.doi.org/10.4028/www.scientific.net/amr.724-725.655.

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The application of power communication system in the field of wind power mainly includes the overall system communication and local field communication. During the operation of wind farms, the total system requires that the electric power communication system should provide reliable rapid information channel, accuracy of transmission on a variety of digital business. This article will focus on the application of power communication system between the wind turbine and the booster station, which includes optical fiber communication, communication and leased public circuit, as well as the cable communication, wireless communication, microwave wireless communication. Finally, in the premise of various communications comparison, according to the actual situation of the wind power field, the network transmission rate and reliability should be considered to the requirements of power market.

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25

Shrestha, Amrit Kumar, and Tara Nath Ghimire. "Power of Initiative and Immunity of Local Government in Federal Nepal." Researcher: A Research Journal of Culture and Society 4, no. 1 (December 27, 2020): 63–79. http://dx.doi.org/10.3126/researcher.v4i1.33812.

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Traditionally, it was considered that federal and state governments are the primary two components of the federal system. Provisions relating to local governments were left in the hand of state governments. The recent concept of federalism accepts the local governments as third and integral tier of the federal system. However, federalism and decentralization are used in different meaning. Federalism means the division of power within the center and federal units whereas decentralization considers devolution of power to the local units. The history of the local government begins with the ancient regime in Nepal, and it continues till at present. This article analyzes whether Nepal's local governments are exercising autonomous powers in the new federal system. It examines the local governments' status and positions in light of Clark's theory of autonomy. It concludes that the local governments have vested a significant level of powers of initiative and immunity to being needed for an autonomous institution.

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26

Kuznietsov, Mykola, Olha Lysenko, and Oleksandr Melnyk. "OPTIMAL REGULATION OF LOCAL ENERGY SYSTEM WITH RENEWABLE ENERGY SOURCES." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (2) (July 2, 2021): 52–61. http://dx.doi.org/10.20998/2224-0349.2021.01.08.

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The paper is devoted to solving the balancing problem in local power systems with renewable energy sources. For a power system optimization problem, whose operation depends on random weather factors, a convex parameter optimization or optimal control problem was solved using controlled generation, for each individual realization of a random process as a deterministic function, and then statistical processing of results over a set of random realizations was performed and distribution density functions of the desired target function were constructed, followed by estimation of expected values and their confidence intervals. The process describing current deviations of generated power from mean value is modelled as discrete stray model and has properties of Ornstein-Uhlenbeck process, which allowed varying the duration of unit interval, in particular to select data bases of operating objects with inherent temporal discreteness of their monitoring systems. Random components are investigated and modelled, while the average values are considered to be deterministic and are provided within a predictable schedule using also traditional energy sources (centralised power grid). A mathematical model of the combined operation of renewable energy sources in a system with variable load, electric storage device and auxiliary regulating generator is implemented as a scheme of sequential generation and consumption models and random processes describing the current state of the power system. The operation of the electricity accumulators is dependent on the processes mentioned, but in the full balance, it appears together with generation or load losses, which are cumulative sums of unbalanced power and may have a different distribution from the normal one. However, these processes are internal, relating to the redistribution of energy within a generation system whose capacity is generally described satisfactorily, given the relevant criteria, by a normal law. Under this condition, it is possible to estimate the probability of different circumstances - over- or under-generation, that is, to give a numerical estimate of the reliability of energy supply.

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27

Denny, David. "Development of China's Electrical Power System." Energy Exploration & Exploitation 7, no. 5 (October 1989): 328–36. http://dx.doi.org/10.1177/014459878900700505.

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The downtrend in electrical output, 10-14% 1977-79 to 6% 1979-84, was reversed to 7.4% between 1980 and 1987 when 35,000 Mw of capacity was added, transmission networks were expanded and regional grids linked. Part of this success arose from policies that replaced a monolithic system of bureaucratic planning to involvement of local interests and decentralization. Chinese organizations have also been able to take advantage of foreign technology and investment. Nevertheless, industrial output only reached 75-80% of its potential due to inadequate electric power supply.

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28

Magliacani, Michela, and Roberto Di Pietra. "Power relations and the accounting system in the Archbishop’s Seminary of Siena (1666-1690)." Accounting, Auditing & Accountability Journal 32, no. 2 (February 18, 2019): 401–20. http://dx.doi.org/10.1108/aaaj-03-2015-1987.

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Purpose Accounting can affect and determine power relations. Previous studies have emphasized how accounting has been used by “central” powers; less is known from the perspective of “local” power and its capacity to resist and protect its interests. The purpose of this paper is to investigate the relationship between the Archbishop’s Seminary of Siena (ASS) (local) and Roman ecclesiastic institutions (central). This study contributes to filling the existing gap in the literature regarding how accounting could be used as a tool for deception in local/central power relations. Design/methodology/approach The research methodology is based on a case study and archival research. The ASS case study was analyzed through its archive, made up for the most part of accounting books. As to the approach adopted, the authors used the Foucault framework to observe power relations in order to identify possible ways in which accounting can be employed as a factor of deception. Findings Power relations between the ASS and Roman ecclesiastic institutions were maintained through a system of reporting that limited the influence of the ecclesiastical power of Rome over the Seminary’s administration and control. The relationship thus runs contrary to the findings in previous studies. The accounting system was managed as a factor of deception in favor of local interests and the limitation of central ecclesiastic power. Research limitations/implications This study contributes to enhancing the existing literature on governmentality, proposing a different perspective in which power relations are based on the use of accounting. The Foucaldian approach demonstrates its validity, even though the power relations under consideration have the unusual feature of occurring within the context of religious institutions. Originality/value This study on the ASS has allowed the identification of two relevant points: the local/central dichotomy is consistent with the logic of power relations as theorized by Foucault, even in cases where it highlights the role of a local power in limiting the flow of information to a central one; and the ASS accounting system was used as a factor of deception.

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Maronchuk, I. I., I. V. Shirokov, A. A. Velchenko, and V. I. Mironchuk. "Intelligent LED Lighting System." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 61, no. 5 (October 4, 2018): 440–50. http://dx.doi.org/10.21122/1029-7448-2018-61-5-440-450.

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The article presents the development of an intelligent control system for LED lighting, applicable to autonomous electric lighting installations, outdoor lighting fixtures on posts to illuminate highways, roads, streets and surrounding areas. The system combines all local lighting systems in which the motion sensor and the LED luminaire are integrated into one network. Turning on the LED luminaire at reduced power is carried out automatically when the level of external natural light is less than a certain threshold value. In the case of appearance of an object moving along the motion sensors of neighboring local lighting systems, the speed and direction of movement of the object are determined. In accordance to the speed and direction of the object movement the number of local lighting systems is determined whose LED lamps should be switched on at a higher power and the appearance of the object at the next design point is predicted. The increase in the power of LED lamps is carried out smoothly when the object is approaching the corresponding local lighting system. Due to the dynamic control of the power of the LED luminaires, as moving objects appear in the coverage area of the intelligent lighting system, significant energy savings are achieved. Traffic safety conditions are increased, as the number of LED lamps operating with increased power is determined by the speed of the object, and its possible braking distance will be significantly less than the illuminated section of the roadway. Smooth changes in the power of LED lamps reduce the pressure on the driver of the vehicle. The choice of the motion sensor based on the autodyne radio blocking, which detects moving objects in a given sector of the controlled space, regardless of the time of day and weather conditions, is grounded.

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CAO, GUO-YUN, and CHEN CHEN. "LOCAL REDUCTION OF FOLD BIFURCATION RELEVANT TO VOLTAGE COLLAPSE IN AN ELECTRIC POWER SYSTEM." International Journal of Bifurcation and Chaos 12, no. 05 (May 2002): 1039–46. http://dx.doi.org/10.1142/s0218127402004875.

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In this paper, the reduction approach based on the center manifold theory for parameter-dependent nonlinear dynamical systems is applied to simplify the analysis of the fold bifurcation relevant to voltage collapse in a simple electric power system. This technique enables us to obtain a lower-dimensional and topologically equivalent system in the neighborhood of the bifurcation value, which is a subset in the state-parameter space. Explicit formulas are presented for the computation of quadratic coefficients of the Taylor approximations to the center manifold for the fold bifurcation in parameter-dependent dynamical systems. It is demonstrated that it is the fold bifurcation but not other static bifurcations that occurs in the reduced power system, via validating the nondegenerate conditions for the fold bifurcation. The dynamics of the reduced system are visualized by two- and three-dimensional plots, which show that the reduction method is applicable and accurate to analyze local bifurcations in the power system. Furthermore, time domain simulation and modal analysis technique for linear systems are applied to distinguish the voltage stability from the rotor (angle) stability in the electric power system.

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31

Liu, Shu Kui, Na Dong, Zhi Zheng, Li Cheng, and Qi Li. "Application of Modified Artificial Fish Swarm Algorithm in Power System Reactive Power Optimization." Applied Mechanics and Materials 321-324 (June 2013): 1361–64. http://dx.doi.org/10.4028/www.scientific.net/amm.321-324.1361.

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Modified Artificial Fish Swarm Algorithm (MAFSA) based on the global search characteristic of Artificial Fish Swarm Algorithm (AFSA), and combined with the local search of chao optimization algorithm(COA), can avoid trapping into local minimal value and decrease the iteration numbers, which was a swarm intelligence optimization algorithm applied to continuous space. MAFSA was proposed to optimize the reactive power optimization, which applied for optimal reactive power is evaluated on an IEEE 30-bus power system. The modeling of reactive power optimization is established taking the minimum network losses as the objective. The simulation results and the comparison results with various optimization algorithms demonstrated that the MAFSA converges to better solutions than other approaches and the algorithm can make effectively use in reactive power optimization. Simultaneously, the validity and superiority of MAFSA was proved.

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32

Elmenfy, Tawfiq H. "Tuning of Power System Stabilizer (Unitrol D) in Benghazi North Power Plant." International Journal of Energy Optimization and Engineering 2, no. 2 (April 2013): 32–43. http://dx.doi.org/10.4018/ijeoe.2013040103.

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The use of power system stabilizers (PSSs) to damp power system swing mode of oscillations is of practical important. The authors purpose is to retune the power system stabilizer (PSS1A) parameters in Unitrol D produced by ABB– was installed in 1995 in Benghazi North Power Plants (BNPPs) at General Electricity Company of Libya (GECOL). Power systems are steadily growing with larger capacity, so the optimal values of the power system stabilizer (PSS1A) parameters should be retuned. A particle swarm optimization technique (PSO) is used to determine the parameters of the PSS off-line. The objective is to damp the local and inter-area modes of oscillations that occur following power system disturbances. The retuned power system stabilizer (PSS1A) can cope with large disturbance at different operating points and has an enhanced power system stability, The MATLAB package with SIMULINK is used for the design and simulations.

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33

BURKINSKY, B. V., V. F. GORIACHYK, and G. M. MURZANOVSKIY. "THE ADMINISTRATIVE AND TERRITORIAL REFORM IN UKRAINE:THE SYSTEM PRESENTATION." Economic innovations 20, no. 3(68) (September 20, 2018): 8–19. http://dx.doi.org/10.31520/ei.2018.20.3(68).8-19.

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Topicality. It is caused by excessive centralization of powers and financial and material resources by the executive authorities, the inability of the territorial communities of the basic level to fulfill their powers, the deterioration of the quality and availability of public services owing to a lack of financial support and a deterioration of the infrastructure base of local self-government, and a decrease in the level of professionalism of officials. Aim and tasks. The research was dedicated to identifying the essence of the administrative and territorial reform in Ukraine and to analyse its implementation, to identify the main problems, to formulate a systematic view on the administrative-territorial reform, to submit proposals to improve the process of reforming of local self-government and territorial organisation of power in Ukraine. Research results. It was proved that the essence of the administrative and territorial reform consists in solving four tasks: improving the territorial division by improving of the system of administrative and territorial units and their consolidation at the basic and district levels; redistribution of powers between executive authorities and local self-government bodies and powers between local government bodies of different levels in accordance with the principle of subsidiarity; provision of territorial communities and their management bodies for the financial, material and human resources that are necessary for the exercise of their powers; the consolidation by the state authorities of the functions of monitoring the observance of the provisions of the Constitution of Ukraine and the norms of legislation by local self-government bodies. The administrative-territorial reform cannot be implemented without the parallel implementation of the reform of local self-government and administrative reform. The consolidation of administrative and territorial units has become one of the main directions of numerous reforms of public authority in European countries. It is not possible to speak of a single model of the administrative and territorial system in Europe. Administrative and territorial reform in Ukraine is inherently complex and involves a thorough and fundamental change in the system of state and local government, creating effective and self-sufficient management entities at all levels. Without the scale of reform, the government identified unrealistic terms of its implementation, narrowing the understanding of reform to a simple transfer of powers and financial resources to the basic level of local self-government without economic calculations about the possibility of exercising powers. A number of measures were proposed to improve the process of reforming local self-government and the territorial organisation of power in Ukraine in terms of updating the Concept of reforming local self-government and territorial organisation of power in Ukraine, forming a conceptual vision of the second level of administrative-territorial structure (level of districts), developing a new Methodology for the formation of capable territorial communities, reduction of dependence of local self-government on transfers from the state budget, approval of standards (norms) of providing public services both in terms of their quality, and in terms of their value. Conclusions.The practical recommendations in the article provide the basis for the development of normative acts and organisational measures aimed at improving the process of reforming local self-government and territorial organisation of authorities in Ukraine.

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34

Bozorg, Mokhtar, Fabrizio Sossan, Jean-Yves Le Boudec, and Mario Paolone. "Influencing the bulk power system reserve by dispatching power distribution networks using local energy storage." Electric Power Systems Research 163 (October 2018): 270–79. http://dx.doi.org/10.1016/j.epsr.2018.06.017.

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35

Jin, Taijun. "The Construction of an Institutionalized Relationship of Chinese Central and Local Government in the New Century." Chinese Public Administration Review 1, no. 1 (January 1, 2006): 37. http://dx.doi.org/10.22140/cpar.v1i1.9.

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This article argues that under the traditional system of highly centralized state power, there exist various kinds of malpractices in the relationship between central and local government, and between government and other public sector organizations. The article affirms the positive effects achieved since 1978 by the reforms centered on "transferring power to a lower level and yielding some interests." But the article also points out that the malpractives of the traditional system have not yet been completely eradicated. At the same time, some new problems have arisen as a result of the reforms. So we must adopt the following measures: first, combine the powers and functions of the central government with the transfer of moderate degree of power to the local government; second, the transfer of administrative power from cental to local government should be coordinated with the transfer of economic power from government to enterprises; third, the division of powers and responsibilities between central and local government must be given a scientific and legal basis.

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Du, Baiting, Toshihiro Matsumoto, Shinichiro Michizono, Takako Miura, and Feng Qiu. "Development of a compact Local Power Distribution System for the ILC." Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 982 (December 2020): 164589. http://dx.doi.org/10.1016/j.nima.2020.164589.

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37

Abido, M. A. "Parameter optimization of multimachine power system stabilizers using genetic local search." International Journal of Electrical Power & Energy Systems 23, no. 8 (November 2001): 785–94. http://dx.doi.org/10.1016/s0142-0615(00)00096-x.

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38

Saffarian, A., and M. Sanaye-Pasand. "New Local Adaptive Load-shedding Methods to Mitigate Power System Blackouts." Electric Power Components and Systems 40, no. 3 (January 2, 2012): 348–68. http://dx.doi.org/10.1080/15325008.2011.635367.

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39

Quiroga, Daniela, Enzo Sauma, and David Pozo. "Power system expansion planning under global and local emission mitigation policies." Applied Energy 239 (April 2019): 1250–64. http://dx.doi.org/10.1016/j.apenergy.2019.02.001.

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Alizadeh, Mohammad, and Turaj Amraee. "Adaptive scheme for local prediction of post-contingency power system frequency." Electric Power Systems Research 107 (February 2014): 240–49. http://dx.doi.org/10.1016/j.epsr.2013.10.014.

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Inna Hnydiuk. "REFORMATTING UKRAINIAN BUDGET SYSTEM WITHIN THE CONDITIONS OF POWER DECENTRALIZATION." World Science 2, no. 1(53) (January 31, 2020): 4–10. http://dx.doi.org/10.31435/rsglobal_ws/31012020/6897.

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The article provides a renovated structure of the state budget system, including location and role of the budgets of joint territorial communities. Besides, current research analyzes the impact of Tax and Budget transformations on the financial framework development of the bodies of local self-authorities, implemented in the beginning of 2015. Special attention has been paid by the authors of the article to the budget balance. Major powers and functions of the bodies of local authority have been studied, according to the European Charter of Local Authority.

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Santos and Ferreira. "IoT Power Monitoring System for Smart Environments." Sustainability 11, no. 19 (September 27, 2019): 5355. http://dx.doi.org/10.3390/su11195355.

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In this research work, we describe the development and subsequent validation of EnerMon a flexible, efficient, edge-computing based Internet of Things (IoT) LoRa (LongRange) System to monitor power consumption. This system provides real-time information and a descriptive analytics process to provide a ‘big picture’ about energy consumption over time and identify energetic waste. The solution is based on Arduinos, current transformer sensors, Raspberry Pi as an application server and LoRa communication alongside a description and information on what is to be expected of it, describing the development process from the design phase to the validation phase with all steps in between. Due to LoRa low debit communication, an edge computing approach was implemented to create a real-time monitoring process based on this technology. This solution, with the help of descriptive analysis, allows the creation of an energetic local footprint, using a low-cost developed solution for less than 80€ per three-phases monitoring device. This solution also allows for easy installation without communication range and obstacles limitations making it easy use in different situations from big complex building to smaller consumers, such as electric boilers, or simply to measure the energetic footprint of tourists in a small local tourist apartment.

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Subramaniam, Umashankar, Sridhar Vavilapalli, Sanjeevikumar Padmanaban, Frede Blaabjerg, Jens Bo Holm-Nielsen, and Dhafer Almakhles. "A Hybrid PV-Battery System for ON-Grid and OFF-Grid Applications—Controller-In-Loop Simulation Validation." Energies 13, no. 3 (February 9, 2020): 755. http://dx.doi.org/10.3390/en13030755.

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In remote locations such as villages, islands and hilly areas, there is a possibility of frequent power failures, voltage drops or power fluctuations due to grid-side faults. Grid-connected renewable energy systems or micro-grid systems are preferable for such remote locations to meet the local critical load requirements during grid-side failures. In renewable energy systems, solar photovoltaic (PV) power systems are accessible and hybrid PV-battery systems or energy storage systems (ESS) are more capable of providing uninterruptible power to the local critical loads during grid-side faults. This energy storage system also improves the system dynamics during power fluctuations. In present work, a PV-battery hybrid system with DC-side coupling is considered, and a power balancing control (PBC) is proposed to transfer the power to grid/load and the battery. In this system, a solar power conditioning system (PCS) acts as an interface across PV source, battery and the load/central grid. With the proposed PBC technique, the system can operate in following operational modes: (a) PCS can be able to work in grid-connected mode during regular operation; (b) PCS can be able to charge the batteries and (c) PCS can be able to operate in standalone mode during grid side faults and deliver power to the local loads. The proposed controls are explained, and the system response during transient and steady-state conditions is described. With the help of controller-in-loop simulation results, the proposed power balancing controls are validated, for both off-grid and on-grid conditions.

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Dong, Yipeng, Xiaorong Xie, Chao Lu, Baorong Zhou, and Qirong Jiang. "Local-area STVS control system." IET Generation, Transmission & Distribution 10, no. 15 (November 17, 2016): 3901–9. http://dx.doi.org/10.1049/iet-gtd.2016.0585.

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Lucas, Jack. "How Hydro Ontario Went Local: The Creation of Local Districts and the Ontario Central System." Scientia Canadensis 37, no. 1-2 (May 20, 2015): 59–76. http://dx.doi.org/10.7202/1030640ar.

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When Ontario Hydro was created, its task was to distribute electricity to local hydro commissions across Ontario. By the 1920s, however, it had become a local distributor itself, providing direct service to thousands of customers across the province. This essay examines the two major events that brought Ontario Hydro into local distribution during this period: the creation of the Central Ontario System in 1916 and the Rural Power District in 1920. This essay draws on previously unexplored archival sources to argue that the two processes were quite separate from one another, and that only one – the Rural Power District – left a lasting institutional legacy in Ontario’s electricity sector. Both developments, however, reveal the “flexibility” of local political autonomy in Ontario – the cultural and political limits of appeals to local autonomy in the face of economic risk and opportunity and technological change.

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Karamov, Dmitriy, and Sergey Perzhabinsky. "Adequacy analysis of electric power systems with wind and solar power stations." E3S Web of Conferences 58 (2018): 02019. http://dx.doi.org/10.1051/e3sconf/20185802019.

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We developed a new method of adequacy analysis of electric power systems with wind and solar power stations. There are storage batteries in the electric power system. Various types of storage batteries can be used in electric power systems. They are electrochemical, hydroelectric, heat or air storages. The modelling of wind speed and solar radiation is based on software «Local analysis of environmental parameters and solar radiation». The original combination of modern models of meteorological data processing is used in the software. For adequacy analysis of electric power system, we use nonsingle estimation of electricity sacrifice in random hour. Simulation of random values is carried out by the Monte Carlo method.

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Mihajlovic, Bogoljub, Bojan Mihajlovic, Milica Panic, Milana Jarakovic, Snezana Bjelica, and Melisa Mironicki. "Locally derived system for cardiac operative risk evaluation." Medical review 67, no. 11-12 (2014): 367–71. http://dx.doi.org/10.2298/mpns1412367m.

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Introduction. During the last two decades, many authors have found that European Systems for Cardiac Operative Risk Evaluation (additive and logistic models) overestimate the risk in cardiac surgery. The new European model has recently been introduced as an update to previous versions. The aim of the study was to investigate the significance of locally derived system for cardiac operative risk evaluation and to compare its predictive power with the existing European systems. Material and Methods. For developing a local risk prediction model, data from 2681 patients submitted to cardiac surgery at the Institute of Cardiovascular Diseases Vojvodina have thoroughly been collected. Logistic regression analysis was used to construct a local model for prediction of outcome. The evaluation of the local model and three European systems was performed by comparing the observed and expected hospital mortality. Results. The difference between the predicted and observed mortality regardless of the type of surgery was statistically insignificant for the additive European system (p=0.073) and the local model (p=0.134). The logistic European system overestimated the operative risk, while the new European model underestimated mortality. In coronary surgery, all models, except the logistic European system, performed well. In valvular surgery, the new European model and the local model underestimated mortality significantly, while the additive and logistic European models performed well. In combined surgery, the new European system significantly underestimated mortality (p=0.029), while the local model performed well (p=0.252). Conclusion. The locally derived model shows satisfactory results, with good calibration and discriminative power. The local model specifically outperforms all other European systems in terms of discriminatory power in combined surgery subset.

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Olajuyin, E. A., and Olubakinde Eniola. "MICROGRID IN POWER DISTRIBUTION SYSTEM." International Journal of Research -GRANTHAALAYAH 7, no. 8 (July 23, 2020): 387–93. http://dx.doi.org/10.29121/granthaalayah.v7.i8.2019.687.

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Power is a very important instrument to the development of economy of a nation and it must be stable and available and to meet the demand of the consumers at all times. The quest for power supply has introduced a new technology called microgrid. Micro grids are regarded as small power systems that confine electric energy generating facilities, from both renewable energy sources and conventional synchronous. Generators, and customer loads with respect to produced electric energy. It can be connected to grid or operate in islanding mode. On the other hand, the grid’s dynamics and its stability rely on the amount of stored energy in the micro grid. In a conventional power system with a large number of synchronous generators as the main sources of energy, the mechanical energy in the generators’ rotors, in the form of kinetic energy, serves as the stored energy and feeds the grids in the event of any drastic load changes or if disturbances occur. Microgrid is an alternative idea to support the grid, it can be applied in a street, estates, community or a locality (towns and villages), organizations and establishments. Load forecasting can be further extended to Organizations, Local Government, State and country to determine the energy consumption.

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Yin, Xianggen, Yikai Wang, Jian Qiao, Wen Xu, Xin Yin, Lin Jiang, and Wei Xi. "Multi-Information Fusion-Based Hierarchical Power Generation-Side Protection System." Energies 14, no. 2 (January 8, 2021): 327. http://dx.doi.org/10.3390/en14020327.

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With renewable power sources and new topology structures being widely introduced into the power system, the current local information-based power generation-side protection cannot fully guarantee the protection performance and the safety coordination with the power grid. This paper proposes an improved hierarchical protection system on the power generation-side. The proposed system takes advantage of the fusion of multi-information provided by the system, station and local layers. The system layer provides the information such as system voltage control and power regulation demand, so that the generation-side protection and control system can adapt to the system operation mode and power regulation demand. The station layer realizes the coordination of the protection principle and action strategy among the related units through information interaction with the power grid, the automatic control system and the local layer protection. The local layer introduces the condition monitoring information and more abundant protection information to enhance the protection performance and master the generation units’ safety condition. To illustrate the hierarchical protection system construction method and actual application mode, the multi-information fusion-based comprehensive local layer protection method and the multi-generators information fusion-based hierarchical protection method are taken as examples. Case analysis shows that the proposed methods can reflect more slight internal fault forms and can adaptively determine the protection action characteristic and tripping strategy according to the system operating conditions and other generators’ fault conditions, which effectively improve the protection sensitivity and coordination capability. To provide reference and inspiration for follow-up research, the hierarchical protection system construction mode, communication technology and research approaches of new protection methods are further pointed out.

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Yin, Xianggen, Yikai Wang, Jian Qiao, Wen Xu, Xin Yin, Lin Jiang, and Wei Xi. "Multi-Information Fusion-Based Hierarchical Power Generation-Side Protection System." Energies 14, no. 2 (January 8, 2021): 327. http://dx.doi.org/10.3390/en14020327.

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With renewable power sources and new topology structures being widely introduced into the power system, the current local information-based power generation-side protection cannot fully guarantee the protection performance and the safety coordination with the power grid. This paper proposes an improved hierarchical protection system on the power generation-side. The proposed system takes advantage of the fusion of multi-information provided by the system, station and local layers. The system layer provides the information such as system voltage control and power regulation demand, so that the generation-side protection and control system can adapt to the system operation mode and power regulation demand. The station layer realizes the coordination of the protection principle and action strategy among the related units through information interaction with the power grid, the automatic control system and the local layer protection. The local layer introduces the condition monitoring information and more abundant protection information to enhance the protection performance and master the generation units’ safety condition. To illustrate the hierarchical protection system construction method and actual application mode, the multi-information fusion-based comprehensive local layer protection method and the multi-generators information fusion-based hierarchical protection method are taken as examples. Case analysis shows that the proposed methods can reflect more slight internal fault forms and can adaptively determine the protection action characteristic and tripping strategy according to the system operating conditions and other generators’ fault conditions, which effectively improve the protection sensitivity and coordination capability. To provide reference and inspiration for follow-up research, the hierarchical protection system construction mode, communication technology and research approaches of new protection methods are further pointed out.

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