Log in

Relevant bibliographies by topics / Grid generation; Grid solving; Optimisation / Journal articles

To see the other types of publications on this topic, follow the link: Grid generation; Grid solving; Optimisation.

Journal articles on the topic 'Grid generation; Grid solving; Optimisation'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Grid generation; Grid solving; Optimisation.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Koivisto, Matti, Juan Gea‐Bermúdez, and Poul Sørensen. "North Sea offshore grid development: combined optimisation of grid and generation investments towards 2050." IET Renewable Power Generation 14, no. 8 (2020): 1259–67. http://dx.doi.org/10.1049/iet-rpg.2019.0693.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Zhou, Yuancheng, and Markus Hegland. "The application of sparse grid quadrature in solving stochastic optimisation problems." ANZIAM Journal 60 (June 19, 2019): 16. http://dx.doi.org/10.21914/anziamj.v60i0.14060.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Martynenko, S. I. "Remarks on Generation of the Orthogonal Structured Grids." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 82 (2019): 16–26. http://dx.doi.org/10.18698/1812-3368-2019-1-16-26.

Full text

Abstract:

Grid generation techniques have contributed significantly toward the application of mathematical modeling in large-scale engineering problems. The structured grids have the advantage that very robust and parallel computational algorithms have been proposed for solving (initial-)boundary value problems. Orthogonal grids make it possible to simplify an approximation of the differential equations and to increase computation accuracy. Opportunity of the orthogonal structured grid generation for solving two- and three-dimensional (initial-)boundary value problems is analyzed in the article in assum

APA, Harvard, Vancouver, ISO, and other styles

4

Qiu, Lu, and Yan Song Li. "Micro-Grid System Integrated with GSHP." Advanced Materials Research 1092-1093 (March 2015): 288–91. http://dx.doi.org/10.4028/www.scientific.net/amr.1092-1093.288.

Full text

Abstract:

In the past few decades, power system has developed into a large-scale network system of centralized electricity generation and long-distance transmission. But in recent years, electrical load has increasing, while the grid has not developed simultaneously, it makes transmission capacity of long-distance transmission lines increase, so as the decline of stability and security of power grid. In order to achieve the goal of not only increasing utilization of renewable energy, but also solving the drawbacks of large-scale power systems, implementing distributed power generation is an effective wa

APA, Harvard, Vancouver, ISO, and other styles

5

Parashar, Sonam, Anil Swarnkar, Khaleequr Rehman Niazi, and Nikhil Gupta. "Modified elephant herding optimisation for economic generation co-ordination of DERs and BESS in grid connected micro-grid." Journal of Engineering 2017, no. 13 (2017): 1969–73. http://dx.doi.org/10.1049/joe.2017.0673.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Du, Lingyu, Qiuhe Ma, Jin Ben, Rui Wang, and Jiahao Li. "Duality and Dimensionality Reduction Discrete Line Generation Algorithm for a Triangular Grid." ISPRS International Journal of Geo-Information 7, no. 10 (2018): 391. http://dx.doi.org/10.3390/ijgi7100391.

Full text

Abstract:

Vectors are a key type of geospatial data, and their discretization, which involves solving the problem of generating a discrete line, is particularly important. In this study, we propose a method for constructing a discrete line mathematical model for a triangular grid based on a “weak duality” hexagonal grid, to overcome the drawbacks of existing discrete line generation algorithms for a triangular grid. First, a weak duality relationship between triangular and hexagonal grids is explored. Second, an equivalent triangular grid model is established based on the hexagonal grid, using this weak

APA, Harvard, Vancouver, ISO, and other styles

7

Xu, Jian Yuan, Jia Jue Li, Jie Jun Zhang, and Yu Zhu. "Power Reserve Classification and Control for Peaking Balance with Intermittent Generation Grid." Applied Mechanics and Materials 521 (February 2014): 252–55. http://dx.doi.org/10.4028/www.scientific.net/amm.521.252.

Full text

Abstract:

The problem of intermittent generation peaking is highly concerned by the grid operator. To build control model for solving unbalance of peaking is great necessary. In this paper, we propose reserve classification control model which contain constant reserve control model with real-time reserve control model to guide the peaking balance of the grid with intermittent generation. The proposed model associate time-period constant reserve control model with real-time reserve control model to calculate, and use the peaking margin as intermediate variable. Therefore, the model solutions which are th

APA, Harvard, Vancouver, ISO, and other styles

8

Oldham, D., J. H. Davies, and T. N. Phillips. "Generic polyhedron grid generation for solving partial differential equations on spherical surfaces." Computers & Geosciences 39 (February 2012): 11–17. http://dx.doi.org/10.1016/j.cageo.2011.06.004.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Heitkoetter, Wilko, Wided Medjroubi, Thomas Vogt, and Carsten Agert. "Comparison of Open Source Power Grid Models—Combining a Mathematical, Visual and Electrical Analysis in an Open Source Tool." Energies 12, no. 24 (2019): 4728. http://dx.doi.org/10.3390/en12244728.

Full text

Abstract:

Power grid models are important in relation to several topics and applications, especially the modelling, optimisation and extension of electrical grids. The significance of grid models is heightened by the increase in renewable energy generation and the challenges associated with its integration into the power grid. However, despite their crucial importance, grid models have generally not been made publicly available for scientific studies or technical analyses. Little information has been published about either the details and methods used in the derivation of these models, or their input an

APA, Harvard, Vancouver, ISO, and other styles

10

Azman, Azarina, Shafrida Sahrani, Kismet Hong Ping, and Dayang Azra Awang Mat. "A New Approach for Solving Inverse Scattering Problems with Overset Grid Generation Method." TELKOMNIKA (Telecommunication Computing Electronics and Control) 15, no. 2 (2017): 820. http://dx.doi.org/10.12928/telkomnika.v15i1.6127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Azman, Azarina, Shafrida Sahrani, Kismet Hong Ping, and Dayang Azra Awang Mat. "A New Approach for Solving Inverse Scattering Problems with Overset Grid Generation Method." TELKOMNIKA (Telecommunication Computing Electronics and Control) 15, no. 2 (2017): 820. http://dx.doi.org/10.12928/telkomnika.v15i2.6127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Wang, Liqun, Songming Hou, and Liwei Shi. "A Numerical Method for Solving Elliptic Interface Problems Using Petrov-Galerkin Formulation with Adaptive Refinement." Mathematical Problems in Engineering 2018 (September 10, 2018): 1–12. http://dx.doi.org/10.1155/2018/3721258.

Full text

Abstract:

Elliptic interface problems have wide applications in engineering and science. Non-body-fitted grid has the advantage of saving the cost of mesh generation. In this paper, we propose a Petrov-Galerkin formulation using non-body-fitted grid for solving elliptic interface problems. In this method, adaptive mesh refinement is employed for cells with large errors. The new mesh still has all triangles being right triangles of the same shape. Numerical experiments show side-by-side comparison that to obtain the same accuracy, our new method has much less overall CPU time compared with the previous m

APA, Harvard, Vancouver, ISO, and other styles

13

De Din, Edoardo, Marco Pau, Ferdinanda Ponci, and Antonello Monti. "A Coordinated Voltage Control for Overvoltage Mitigation in LV Distribution Grids." Energies 13, no. 8 (2020): 2007. http://dx.doi.org/10.3390/en13082007.

Full text

Abstract:

The design of intelligent strategies for grid management is a cost-effective solution to increase the hosting capacity of distribution grids without investing in the reinforcement of the grid assets. This paper presents a distributed voltage control algorithm to coordinate Energy Storage Systems (ESSs) and Distributed Generation (DG) in a scenario of high renewable penetration. The proposed control algorithm relies on a dual decomposition approach and aims at mitigating possible voltage rise events occurring in the Low Voltage (LV) grid by solving an optimization problem of power minimization.

APA, Harvard, Vancouver, ISO, and other styles

14

Cerchio, Marco, Francesco Gullí, Maurizio Repetto, and Antonino Sanfilippo. "Hybrid Energy Network Management: Simulation and Optimisation of Large Scale PV Coupled with Hydrogen Generation." Electronics 9, no. 10 (2020): 1734. http://dx.doi.org/10.3390/electronics9101734.

Full text

Abstract:

The power production of electrical Renewable Energy Sources (RES), mainly PV and wind energy, is affected by their primary source of energy: solar radiation value or wind strength. Electrical networks with a large share of these sources must manage temporal imbalances of supply and demand. Hybrid Energy Networks (HEN) can mitigate the effects of this unbalancing by providing a connection between the electricity grid and and other energy vectors such as heat, gas or hydrogen. These couplings can activate synergies among networks that, all together, increase the share of renewable sources helpin

APA, Harvard, Vancouver, ISO, and other styles

15

Sapetina, Anna, Ivan Ulyanichev, and Boris Glinskiy. "The grid codes generation for solving problems of the cosmic plasma hydrodynamics on supercomputers." Journal of Physics: Conference Series 1336 (November 2019): 012012. http://dx.doi.org/10.1088/1742-6596/1336/1/012012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Nadhirah Sam’on, Izni, Zuhaila Mat Yasin, and Zuhaina Zakaria. "Ant Lion Optimizer for Solving Unit Commitment Problem in Smart Grid System." Indonesian Journal of Electrical Engineering and Computer Science 8, no. 1 (2017): 129. http://dx.doi.org/10.11591/ijeecs.v8.i1.pp129-136.

Full text

Abstract:

<p>This paper proposed the integration of solar energy resources into the conventional unit commitment. The growing concern about the depletion of fossil fuels increased the awareness on the importance of renewable energy resources, as an alternative energy resources in unit commitment operation. However, the present renewable energy resources is intermitted due to unpredicted photovoltaic output. Therefore, Ant Lion Optimizer (ALO) is proposed to solve unit commitment problem in smart grid system with consideration of uncertainties .ALO is inspired by the hunting appliance of ant lions

APA, Harvard, Vancouver, ISO, and other styles

17

Dkhili, Nouha, Julien Eynard, Stéphane Thil, and Stéphane Grieu. "Resilient Predictive Control Coupled with a Worst-Case Scenario Approach for a Distributed-Generation-Rich Power Distribution Grid." Clean Technologies 3, no. 3 (2021): 629–55. http://dx.doi.org/10.3390/cleantechnol3030038.

Full text

Abstract:

In a context of accelerating deployment of distributed generation in power distribution grid, this work proposes an answer to an important and urgent need for better management tools in order to ‘intelligently’ operate these grids and maintain quality of service. To this aim, a model-based predictive control (MPC) strategy is proposed, allowing efficient re-routing of power flows using flexible assets, while respecting operational constraints as well as the voltage constraints prescribed by ENEDIS, the French distribution grid operator. The flexible assets used in the case study—a low-voltage

APA, Harvard, Vancouver, ISO, and other styles

18

Patil, Rakesh, Jarod Kelly, Zoran Filipi, and Hosam Fathy. "A Framework for the Integrated Optimization of Charging and Power Management in Plug-in Hybrid Electric Vehicles." Vehicular Technology, IEEE Transactions on 62, no. 6 (2013): 2402–12. http://dx.doi.org/10.1109/tvt.2013.2243850.

Full text

Abstract:

This paper develops a dynamic programming (DP)-based framework for simultaneously optimizing the charging and power management of a plug-in hybrid electric vehicle (PHEV). These two optimal control problems relate to activities of the PHEV on the electric grid (i.e., charging) and on the road (i.e., power management). The proposed framework solves these two problems simultaneously to avoid loss of optimality resulting from solving them separately. The framework furnishes optimal trajectories of PHEV states and control inputs over a 24-h period. We demonstrate the framework for 24-h scenarios w

APA, Harvard, Vancouver, ISO, and other styles

19

Manisha, N. A., Sachin Bhati, Prerna Gaur, and Diwaker Pathak. "Novel fuzzy-assisted nonlinear optimal power generation method for grid-connected SPV system with TLBO optimisation." International Journal of Renewable Energy Technology 12, no. 2 (2021): 144. http://dx.doi.org/10.1504/ijret.2021.10038105.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Manisha, N. A., Sachin Bhati, Prerna Gaur, and Diwaker Pathak. "Novel fuzzy-assisted nonlinear optimal power generation method for grid-connected SPV system with TLBO optimisation." International Journal of Renewable Energy Technology 12, no. 2 (2021): 144. http://dx.doi.org/10.1504/ijret.2021.115262.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Schellenberg, Christoph, Laurentiu Dimache, and John Lohan. "Grid-edge technology - Exploring the flexibility potential of a heat pump and thermal energy storage system." E3S Web of Conferences 111 (2019): 06002. http://dx.doi.org/10.1051/e3sconf/201911106002.

Full text

Abstract:

Grid-edge technologies (GET) enable and amplify the impact of three emerging energy system trends: electrification, decentralisation, and digitalisation. Smart grid integrated heat pumps with thermal energy storage enable both the electrification of heating and decentralised demand response. Such power-to-heat technologies simultaneously decarbonise heating and facilitate the grid integration of more variable renewable electricity in a cost-effective manner. This may help to explore and exploit untapped wind generation potential. This study explores the flexibility potential of a domestic scal

APA, Harvard, Vancouver, ISO, and other styles

22

Wu, Zhaochun, Jianping Luo, and Jingmei Feng. "A novel algorithm for solving the classical Stefan problem." Thermal Science 15, suppl. 1 (2011): 39–44. http://dx.doi.org/10.2298/tsci11s1039w.

Full text

Abstract:

A novel algorithm for solving the classic Stefan problem is proposed in the paper. Instead of front tracking, we preset the moving interface locations and use these location coordinates as the grid points to find out the arrival time of moving interface respectively. Through this approach, the difficulty in mesh generation can be avoided completely. The simulation shows the numerical result is well coincident with the exact solution, implying the new approach performs well in solving this problem.

APA, Harvard, Vancouver, ISO, and other styles

23

Chen, Zi Ying, Jia Lin Hu, Jia Yao Li, and Wei Xun Long. "Overview and Prospects of Black Start." Applied Mechanics and Materials 533 (February 2014): 401–8. http://dx.doi.org/10.4028/www.scientific.net/amm.533.401.

Full text

Abstract:

With the rapid development of power grid, black start has been an indispensable part of power grid construction, and the gradually mature microgrid technology will play an important role in solving power system problems. Otherwise, plug-in electric vehicle will become an important load in future power grid. The black start concept, research status, black start scheme development and its verification are stated in detail; distributed generation and microgrid are introduced; the strategy about taking microgrid as black start power sources is proposed; and key technical problems existing on the c

APA, Harvard, Vancouver, ISO, and other styles

24

Engwirda, Darren. "JIGSAW-GEO (1.0): locally orthogonal staggered unstructured grid generation for general circulation modelling on the sphere." Geoscientific Model Development 10, no. 6 (2017): 2117–40. http://dx.doi.org/10.5194/gmd-10-2117-2017.

Full text

Abstract:

Abstract. An algorithm for the generation of non-uniform, locally orthogonal staggered unstructured spheroidal grids is described. This technique is designed to generate very high-quality staggered Voronoi–Delaunay meshes appropriate for general circulation modelling on the sphere, including applications to atmospheric simulation, ocean-modelling and numerical weather prediction. Using a recently developed Frontal-Delaunay refinement technique, a method for the construction of high-quality unstructured spheroidal Delaunay triangulations is introduced. A locally orthogonal polygonal grid, deriv

APA, Harvard, Vancouver, ISO, and other styles

25

Mekhamer, Said, Almoataz Abdelaziz, and Mostafa Algabalawy. "Design of hybrid power generation systems connected to utility grid and natural gas distribution network." Engineering review 38, no. 2 (2018): 204–14. http://dx.doi.org/10.30765/er.38.2.8.

Full text

Abstract:

Hybrid power generation system (HPGS) is an active research area, which is in need of a continuous improvement. It represents the best solution for the most complex problems facing the world in the last decades. These problems are known as the shortage of energy, or lack of electricity, which logically are the results of the continuous increasing demand. Therefore, the researchers do their best to overcome all expected roadblocks facing the development, where the most applicable solutions to solve these problems are introduced. In this paper, the HPGS includes; wind turbine (WT), photovoltaic

APA, Harvard, Vancouver, ISO, and other styles

26

Ouramdane, Oussama, Elhoussin Elbouchikhi, Yassine Amirat, and Ehsan Sedgh Gooya. "Optimal Sizing and Energy Management of Microgrids with Vehicle-to-Grid Technology: A Critical Review and Future Trends." Energies 14, no. 14 (2021): 4166. http://dx.doi.org/10.3390/en14144166.

Full text

Abstract:

The topic of microgrids (MGs) is a fast-growing and very promising field of research in terms of energy production quality, pollution reduction and sustainable development. Moreover, MGs are, above all, designed to considerably improve the autonomy, sustainability, and reliability of future electrical distribution grid. At the same time, aspects of MGs energy management, taking into consideration distribution generation systems, energy storage devices, electric vehicles, and consumption components have been widely investigated. Besides, grid architectures including DC, AC, or hybrid power gene

APA, Harvard, Vancouver, ISO, and other styles

27

Wang, Ying, Zhile Yang, Yuanjun Guo, Bowen Zhou, and Xiaodong Zhu. "A Novel Binary Competitive Swarm Optimizer for Power System Unit Commitment." Applied Sciences 9, no. 9 (2019): 1776. http://dx.doi.org/10.3390/app9091776.

Full text

Abstract:

The unit commitment (UC) problem is a critical task in power system operation process. The units realize reasonable start-up and shut-down scheduling and would bring considerable economic savings to the grid operators. However, unit commitment is a high-dimensional mixed-integer optimisation problem, which has long been intractable for current solvers. Competitive swarm optimizer is a recent proposed meta-heuristic algorithm specialized in solving the high-dimensional problem. In this paper, a novel binary competitive swarm optimizer (BCSO) is proposed for solving the UC problem associated wit

APA, Harvard, Vancouver, ISO, and other styles

28

Dyer, Jamie, Christopher Zarzar, Philip Amburn, Robert Dumais, John Raby, and Jeffrey A. Smith. "Defining the Influence of Horizontal Grid Spacing on Ensemble Uncertainty within a Regional Modeling Framework." Weather and Forecasting 31, no. 6 (2016): 1997–2017. http://dx.doi.org/10.1175/waf-d-16-0030.1.

Full text

Abstract:

Abstract Numerical weather prediction (NWP) models are limited with respect to initial and boundary condition data and possess an incomplete description of underlying physical processes. To account for this, modelers have adopted the method of ensemble prediction to quantify the uncertainty within a model framework; however, the generation of ensemble members requires considerably more computational time and/or resources than a single deterministic simulation, especially at convection-allowing horizontal grid spacings. One approach to solving this issue is the development of both a large and s

APA, Harvard, Vancouver, ISO, and other styles

29

Tang, Fei, Junjie Pang, Kefei Cheng, and Qianhong Gong. "Multiauthority Traceable Ring Signature Scheme for Smart Grid Based on Blockchain." Wireless Communications and Mobile Computing 2021 (April 9, 2021): 1–9. http://dx.doi.org/10.1155/2021/5566430.

Full text

Abstract:

As the next-generation power grid system, the smart grid can realize the balance of supply and demand and help in communication security and privacy protection. However, real-time power consumption data collection might expose the users’ privacy information, such as their living habits and economic conditions. In addition, during the process of data transmission, it may lead to data inconsistency between the user side and the storage side. Blockchain provides tamper-resistant and traceable characteristics for solving these problems, and ring signature schemes provide an anonymous authenticatio

APA, Harvard, Vancouver, ISO, and other styles

30

Dragomir, Florin, and Otilia Elena Dragomir. "Improvement of Energy Consume from Hybrid Systems Integrating Renewable Energy Sources." Advanced Materials Research 512-515 (May 2012): 1147–50. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.1147.

Full text

Abstract:

This article proposes a solution for smart grid technologies using renewable energy and has as main result the optimisation of energy generation and consum in a power system with distributed power generation from renewable resources, by designing and implementation an system platform for monitoring and transmission the message (phone via SMS) by consumers. This application make available to consumers real-time information about energy, giving them the opportunity to make smart choices, allowing them to reduce their monthly bills and carbon emissions, reducing also the demand during peak period

APA, Harvard, Vancouver, ISO, and other styles

31

Pan, Hao, Ming Ding, Rui Bi, and Lei Sun. "Research on Cooperative Planning of Distributed Generation Access to AC/DC Distribution (Micro) Grids Based on Analytical Target Cascading." Energies 12, no. 10 (2019): 1847. http://dx.doi.org/10.3390/en12101847.

Full text

Abstract:

With the wide application of distributed generation (DG) and the rapid development of alternating current/direct current (AC/DC) hybrid microgrids, the optimal planning of distributed generation connecting to AC/DC distribution networks/microgrids has become an urgent problem to resolve. This paper presents a collaborative planning method for distributed generation access to AC/DC distribution (micro) grids. Based on the grid structure of the AC/DC distribution network, the typical interconnection structure of the AC/DC hybrid microgrid and AC/DC distribution network is designed. The optimal a

APA, Harvard, Vancouver, ISO, and other styles

32

Mburu, Zack M., Sabyasachi Mondal, Precious Sibanda, and Ram Prakash Sharma. "The Overlapping Grid Spectral Collocation Method for Solving Entropy Generation in Casson Nanofluid Flow Past a Stretching Plate." Journal of Nanofluids 10, no. 1 (2021): 45–57. http://dx.doi.org/10.1166/jon.2021.1766.

Full text

Abstract:

The current study investigates the intrinsic irreversibility phenomenon of a mixed convection and electrically conducting couple stress Casson fluid motion over a thermally stretching sheet. We have considered the combined effect of applied magnetic field, Brownian motion, thermal radiation, permeability, Casson parameter, and the stretching parameter on the entropy generation rate of the model. The first and second laws of thermodynamics have been applied to examine the flow problem. The obtained dimensionless structure of highly nonlinear ordinary differential equations is then solved numeri

APA, Harvard, Vancouver, ISO, and other styles

33

Li, Hong, Yang Liu, and Jianfeng Yang. "A Novel FCS-MPC Method of Multi-Level APF Is Proposed to Improve the Power Quality in Renewable Energy Generation Connected to the Grid." Sustainability 13, no. 8 (2021): 4094. http://dx.doi.org/10.3390/su13084094.

Full text

Abstract:

When photovoltaic, wind, energy storage batteries, and other new forms of energy are connected to the grid, power electronic converters are needed, and there are a lot of nonlinear devices in the grid. The characteristics of sustainable energy generation determine the variability and intermittency, which will produce harmonic components. Active power filters (APF) are commonly used in industry for harmonic compensation, so it is of great significance to control APF quickly and effectively. The multi-objective, single-factor, multistep finite control set model predictive control (FCS-MPC) of an

APA, Harvard, Vancouver, ISO, and other styles

34

Hoe, Ong Kam, Agileswari K. Ramasamy, Lee Jun Yin, Renuga Verayiah, Marayati Binti Marsadek, and Muhammad Abdillah. "Hybrid Control of Grid-Feeding and Fuzzy Logic Fault Detection in Solving Voltage Dynamic Problem within the Malaysian Distribution Network." Energies 14, no. 12 (2021): 3545. http://dx.doi.org/10.3390/en14123545.

Full text

Abstract:

The stochastic behavior of PV together with high PV penetration have given rise to power quality concerns involving voltage dynamic issues such as undervoltage, overvoltage, sag and swell. To ensure the grid’s stability, various methods have been practiced such as a proper sizing of the grid lines and the installation of power quality compensation equipment. However, these measures often require high costs and high control complexity due to additional equipment being involved such as multiple transformers and inverters. Moreover, the current available reactive power compensation equipment has

APA, Harvard, Vancouver, ISO, and other styles

35

Luo, Ya Di, Jing Li, Pei Yu Jia, Jie Xu, Sen Li, and Jia Tong Du. "The Parallel Solving and Program Implementation Method of Large-Scale Power Flow Correction Equations." Applied Mechanics and Materials 556-562 (May 2014): 3809–13. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.3809.

Full text

Abstract:

This paper present a parallel solving method of large-scale power flow correction equations and the program implementation based on the shared memory programming model OpenMP, which Improve the utilization rate the computer CPU resources and the computing speed. The method uses factor tables for solving the power flow equations. Combined the sparsity of correction equations coefficient matrix, the rows which can be do normalized simultaneously are grouped for doing the normalization and elimination operations in parallel. Meanwhile, use the row grouping information which is obtained during the

APA, Harvard, Vancouver, ISO, and other styles

36

Ju, Liwei, Zhongfu Tan, Huanhuan Li, Xiaobao Yu, and Huijuan Zhang. "Multiobjective Synergistic Scheduling Optimization Model for Wind Power and Plug-In Hybrid Electric Vehicles under Different Grid-Connected Modes." Mathematical Problems in Engineering 2014 (2014): 1–15. http://dx.doi.org/10.1155/2014/179583.

Full text

Abstract:

In order to promote grid’s wind power absorptive capacity and to overcome the adverse impacts of wind power on the stable operation of power system, this paper establishes benefit contrastive analysis models of wind power and plug-in hybrid electric vehicles (PHEVs) under the optimization goal of minimum coal consumption and pollutant emission considering multigrid connected modes. Then, a two-step adaptive solving algorithm is put forward to get the optimal system operation scheme with the highest membership degree based on the improvedεconstraints method and fuzzy decision theory. Thirdly, t

APA, Harvard, Vancouver, ISO, and other styles

37

Zhang, Bai Hua, Hai Feng Guo, Yong Xing Li, Man Chen, Yong Qi Li, and Jin Song Zhou. "Optimization of Smoothing Control in Hybrid Wind and Battery Energy Storage System." Advanced Materials Research 852 (January 2014): 703–7. http://dx.doi.org/10.4028/www.scientific.net/amr.852.703.

Full text

Abstract:

In recent years, renewable energy technologies like wind power generation are developing very fast. However, due to the randomness and intermittency of wind, the integration of large-scale wind farm into grid will have negative impact on many aspects of the grid. An effective way to solve these problems is to install battery energy storage system (BESS) in a wind farm. In order to smooth the output power of wind farm, this paper established a mathematical model for solving optimization problems of hybrid wind and BESS system, solved it with modern interior point algorithm. Charge-discharge pro

APA, Harvard, Vancouver, ISO, and other styles

38

Kaltenbacher, Manfred, and Sebastian Floss. "Nonconforming Finite Elements Based on Nitsche-Type Mortaring for Inhomogeneous Wave Equation." Journal of Theoretical and Computational Acoustics 26, no. 03 (2018): 1850028. http://dx.doi.org/10.1142/s2591728518500287.

Full text

Abstract:

We propose the nonconforming Finite Element (FE) method based on Nitsche-type mortaring for efficiently solving the inhomogeneous wave equation, where due to the change of material properties the wavelength in the subdomains strongly differs. Therewith, we gain the flexibility to choose for each subdomain an optimal grid. The proposed method fulfills the physical conditions along the nonconforming interfaces, namely the continuity of the acoustic pressure and the normal component of the acoustic particle velocity. We apply the nonconforming grid method to the computation of transmission loss (

APA, Harvard, Vancouver, ISO, and other styles

39

Dkhili, Nouha, David Salas, Julien Eynard, Stéphane Thil, and Stéphane Grieu. "Innovative Application of Model-Based Predictive Control for Low-Voltage Power Distribution Grids with Significant Distributed Generation." Energies 14, no. 6 (2021): 1773. http://dx.doi.org/10.3390/en14061773.

Full text

Abstract:

In past decades, the deployment of renewable-energy-based power generators, namely solar photovoltaic (PV) power generators, has been projected to cause a number of new difficulties in planning, monitoring, and control of power distribution grids. In this paper, a control scheme for flexible asset management is proposed with the aim of closing the gap between power supply and demand in a suburban low-voltage power distribution grid with significant penetration of solar PV power generation while respecting the different systems’ operational constraints, in addition to the voltage constraints pr

APA, Harvard, Vancouver, ISO, and other styles

40

Alexandrov, V., A. Buyanov, L. Markova, and M. Sivers. "Researching Digital Methods of Generation Signals of Hydroacoustic Phased Antenna Grids." Proceedings of Telecommunication Universities 7, no. 1 (2021): 42–53. http://dx.doi.org/10.31854/1813-324x-2021-7-1-42-53.

Full text

Abstract:

Solving tasks of creation, correction and parametric control of signals excitation hydroacoustic phased antenna grids is actual problem of creating multichannel generated devices, based on switch-mode amplifiers with pulse-width modulation. In this article were reviewed correction methods output signals of hydroacoustic transmission paths, periodic pulse sequence creation and parametric voltage level control of excitation channels of phased antenna grid with abrupt decrease impedance of hydroacoustic converters. Was shown the perspective implementation digital technologies for improvement para

APA, Harvard, Vancouver, ISO, and other styles

41

Utomo, Oscar, Muditha Abeysekera, and Carlos E. Ugalde-Loo. "Optimal Operation of a Hydrogen Storage and Fuel Cell Coupled Integrated Energy System." Sustainability 13, no. 6 (2021): 3525. http://dx.doi.org/10.3390/su13063525.

Full text

Abstract:

Integrated energy systems have become an area of interest as with growing energy demand globally, means of producing sustainable energy from flexible sources is key to meet future energy demands while keeping carbon emissions low. Hydrogen is a potential solution for providing flexibility in the future energy mix as it does not emit harmful gases when used as an energy source. In this paper, an integrated energy system including hydrogen as an energy vector and hydrogen storage is studied. The system is used to assess the behaviour of a hydrogen production and storage system under different re

APA, Harvard, Vancouver, ISO, and other styles

42

Hussan, Md Reyaz, Adil Sarwar, Marif Daula Siddique, et al. "A Novel Switched-Capacitor Multilevel Inverter Topology for Energy Storage and Smart Grid Applications." Electronics 9, no. 10 (2020): 1703. http://dx.doi.org/10.3390/electronics9101703.

Full text

Abstract:

The recent advancement in the application of the internet of things in the smart grid has led to an industrial revolution in the power industry. The Industry 4.0 revolution has already set in, allowing computers to interact for an efficient and intelligent approach in solving smart grid issues. multilevel inverters (MLIs) are an integral part of the smart grid system for integrating the distributed generation sources and storage energy systems into the smart grid. It attracted attention in industrial applications as they can handle high power and high voltage with an inherent feature of superi

APA, Harvard, Vancouver, ISO, and other styles

43

Bagade, Pramodkumar M., Yogesh G. Bhumkar, and Tapan K. Sengupta. "An improved orthogonal grid generation method for solving flows past highly cambered aerofoils with and without roughness elements." Computers & Fluids 103 (November 2014): 275–89. http://dx.doi.org/10.1016/j.compfluid.2014.07.031.

Full text

APA, Harvard, Vancouver, ISO, and other styles

44

Mohebbi, Farzad, Ben Evans, and Mathieu Sellier. "On the Kutta Condition in Compressible Flow over Isolated Airfoils." Fluids 4, no. 2 (2019): 102. http://dx.doi.org/10.3390/fluids4020102.

Full text

Abstract:

This paper presents a novel and accurate method to implement the Kutta condition in solving subsonic (subcritical) inviscid isentropic compressible flow over isolated airfoils using the stream function equation. The proposed method relies on body-fitted grid generation and solving the stream function equation for compressible flows in computational domain using finite-difference method. An expression is derived for implementing the Kutta condition for the airfoils with both finite angles and cusped trailing edges. A comparison of the results obtained from the proposed numerical method and the

APA, Harvard, Vancouver, ISO, and other styles

45

Kurtinaitis, A., A. Dementjev, and F. Ivanauskas. "Modeling of Pulse Propagation Factor Changes in Type II Second Harmonic Generation." Nonlinear Analysis: Modelling and Control 6, no. 2 (2001): 51–69. http://dx.doi.org/10.15388/na.2001.6.1.15215.

Full text

Abstract:

We describe the simulations of the second harmonic generation of ultrashort laser pulses by numerically solving a system of wave propagation equations. The equations are solved by using a split-step method in twodimensional cyllindrically symmetric space and time coordinates. The diffraction part of a solution uses the Hopscotch type finite-difference scheme on a regular grid. The transport part is solved by using the cubic spline approximation. The obtained numerical results satisfactorily respect energy conservation constraints. The algorithm and program developed make it possible to o

APA, Harvard, Vancouver, ISO, and other styles

46

Oodo, Stephen, and Felix S. Owolabi. "Application of a Genetic Algorithm for Improving Voltage Profile with Distributed Generation." European Journal of Engineering Research and Science 4, no. 1 (2019): 64–68. http://dx.doi.org/10.24018/ejers.2019.4.1.1063.

Full text

Abstract:

The purpose of a power grid is to transfer electrical energy from the production to the consumption, while maintaining an acceptable reliability and voltage quality for all customers. This research paper present the integration of generation based on Biogas power renewable energy source to the Distribution network and how it stabilizes the network by normalizing the fluctuating voltage at the distribution end of power system. A Genetic Algorithm model was performed and evaluation of the impact of the DG by stimulating the developed model in the system. A mathematical formulation and optimizati

APA, Harvard, Vancouver, ISO, and other styles

47

Hong, June S., and Mihui Kim. "Game-Theory-Based Approach for Energy Routing in a Smart Grid Network." Journal of Computer Networks and Communications 2016 (2016): 1–8. http://dx.doi.org/10.1155/2016/4761720.

Full text

Abstract:

Small power plants and buildings with renewable power generation capability have recently been added to traditional central power plants. Through these facilities, prosumers appear to have a concurrent role in both energy production and consumption. Based on bidirectional power transfers by large numbers of prosumers, a smart microgrid has become an important factor in efficiently controlling the microgrids used in power markets and in conducting effective power trades among grids. In this paper, we present an approach utilizing the game theory for effective and efficient energy routing, which

APA, Harvard, Vancouver, ISO, and other styles

48

Molina, Alexander, Oscar Danilo Montoya, and Walter Gil-González. "Exact minimization of the energy losses and the CO2 emissions in isolated DC distribution networks using PV sources." DYNA 88, no. 217 (2021): 178–84. http://dx.doi.org/10.15446/dyna.v88n217.93099.

Full text

Abstract:

This paper addresses the optimal location and sizing of photovoltaic (PV) sources in isolated direct current (DC) electrical networks, considering time-varying load and renewable generation curves. The mathematical formulation of this problem corresponds to mixed-integer nonlinear programming (MINLP), which is reformulated via mixed-integer convex optimization: This ensures the global optimum solving the resulting optimization model via branch & bound and interior-point methods. The main idea of including PV sources in the DC grid is to minimize the daily energy losses and greenhouse emiss

APA, Harvard, Vancouver, ISO, and other styles

49

Abdulgalil, Mohammed Atta, Muhammad Khalid, and Fahad Alismail. "Optimal Sizing of Battery Energy Storage for a Grid-Connected Microgrid Subjected to Wind Uncertainties." Energies 12, no. 12 (2019): 2412. http://dx.doi.org/10.3390/en12122412.

Full text

Abstract:

In this paper, based on stochastic optimization methods, a technique for optimal sizing of battery energy storage systems (BESSs) under wind uncertainties is provided. Due to considerably greater penetration of renewable energy sources, BESSs are becoming vital elements in microgrids. Integrating renewable energy sources in a power system together with a BESS enhances the efficiency of the power system by enhancing its accessibility and decreasing its operating and maintenance costs. Furthermore, the microgrid-connected BESS should be optimally sized to provide the required energy and minimize

APA, Harvard, Vancouver, ISO, and other styles

50

Niemann, S., B. Kolesnikov, H. Lohse-Busch, et al. "The use of topology optimisation in the conceptual design of next generation lattice composite aircraft fuselage structures." Aeronautical Journal 117, no. 1197 (2013): 1139–54. http://dx.doi.org/10.1017/s0001924000008745.

Full text

Abstract:

Abstract Conventional commercial aircraft fuselages use all-aluminium semi-monocoque structures where the skin carries the external loads, the internal fuselage pressurisation and is strengthen using frames and stringers. Environmental and economic issues force aircraft designers to minimise weight and costs to keep air transport competitive and safe. But as metal designs have reached a high degree of perfection, extraordinary weight and cost savings are unlikely in the future. Carbon composite materials combined with lattice structures and the use of topology optimisation have the potential t

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!