Relevant bibliographies by topics / Current control of the traction accumulator

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Academic literature on the topic 'Current control of the traction accumulator'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Current control of the traction accumulator"

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Arhun, S., Yu Borodenko, A. Hnatov, A. Popova, H. Hnatova, N. Kunicina, A. Ziravecka, A. Zabasta, and L. Ribickis. "Choice of Parameters for the Electrodrive Diagnostic System of Hybrid Vehicle Traction." Latvian Journal of Physics and Technical Sciences 57, no. 4 (August 1, 2020): 3–11. http://dx.doi.org/10.2478/lpts-2020-0017.

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AbstractWhen operating a hybrid vehicle (HEV), it is important to reduce maintenance and repair costs. The HEV electric drive (ED) consists of electronic, electrical and mechanical parts and is considered a complex diagnostic model. The availability of an electrical part greatly simplifies the process of monitoring and obtaining information about the state of the system. In order to create a hybrid diesel-electric propulsion system (HDEPS), the choice of structural and functional parameters as diagnostic ones is justified, the control points are chosen, and the necessary accuracy and unambiguity of measurements are determined. Qualitative evaluations of the electrical processes occurring in the power supply circuit of ED from a high-voltage accumulator battery for the selection of diagnostic parameters according to the criteria of sensitivity, informative character, stability and manufacturability of measurements are presented. It has been revealed that during HDEPS diagnostics both stable and transient modes of operation of electric machines should be considered; for analysis of ED technical state it is necessary to have information about current mode of HDEPS load; for measurement of instantaneous values of supply voltage and consumption current it is necessary to select the sensors with short response time and linear conversion function. In terms of sensitivity to structural changes in the circuit and parametric deviations, it is necessary to choose, as diagnostic parameters, the voltage or current, depending on the mode of operation of the ED and the point of measurement of the electrical value. The obtained results are the basis for creating a new system of diagnostics of electric power supply HDEPS in this direction.
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Dobrucky, Branislav, Slavomir Kascak, Michal Frivaldsky, and Michal Prazenica. "Determination and Compensation of Non-Active Torques for Parallel HEV Using PMSM/IM Motor(s)." Energies 14, no. 10 (May 12, 2021): 2781. http://dx.doi.org/10.3390/en14102781.

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The paper deals with the determination and compensation of non-active torques of parallel HEV using an auxiliary electrical PMSM or IM motor. The non-active oscillating torque generating by the ICE engine was estimated, and consequently, the compensating torque component of the current was determined. Based on real measured data, the four regimes of operation have been investigated: compensating non-active torques, parallel operation, regenerating for PMSM, and both parallel operations, together with compensation. Using of p-q theory, the power of fundamental harmonic is presented by average values PAV, QAV of total power waveforms p(t), and q(t). Worked-out simulation results are used for sizing and dimensioning of PMSM machine, VSI inverter, and traction accumulator-battery. Circuit simulator Matlab/Simulink was used for all simulation experiments.
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Young, Jieh Shian, Yu Bang Lin, Kuan Jie Chen, and Po Ting Chen. "Gain-Scheduled Control Approach by Logarithm Transformation for Electrical Vehicle Traction Force Control." Applied Mechanics and Materials 619 (August 2014): 283–87. http://dx.doi.org/10.4028/www.scientific.net/amm.619.283.

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This paper proposes an approach by logarithm to evaluating the electrical vehicle traction force control directly instead of the slip ratio measurements. Utilizing the built character database of the driven motor, or so-called current-RPM-torque database, a gain-scheduled approach by logarithm transformation is developed to provide the appropriate traction force while one traction wheel of the vehicle is traveling into different road surface. An illustrated simulation with a scenario close to real situation is also given to show the feasibility to evaluate and control the traction force through the database of the motor.
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Nezevak, Vladislav Leonidovich, and Svyatoslav Sergeevich Samolinov. "Application of electric power accumulators in traction power supply system in order to increase capacity on «bottleneck» sections." Transport of the Urals, no. 1 (2020): 104–9. http://dx.doi.org/10.20291/1815-9400-2020-1-104-109.

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The paper considers issues of increasing capacity on «bottleneck» sections of direct current railways by means of application of electric power accumulators. Selection of electric power accumulators location is carried out with the consideration for grading of track on a section, specific recuperation, dominance of traffic type, rate of electric rolling stops, mode of feeding of intersubstational zones. When determining power consumption and capacity of electric power accumulators a depth of discharge that affects a service life and a state of charge graph that depends on a selected characteristic of charging rate are considered. The procedure of assessing the influence of electric power accumulator operation on capacity is considered on the example of one of the railway sections.
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Yan, Shi Rong, and Shi Zhong Li. "Study on an EV Traction Control Strategy." Applied Mechanics and Materials 141 (November 2011): 605–10. http://dx.doi.org/10.4028/www.scientific.net/amm.141.605.

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According to an electrical vehicle (EV) construction and working principle, a dynamic model governing its motion was established. A built-in permanent magnet synchronous motor was selected as its driving motor and a mathematical model about the motor working principle was described also. To get good motion effect, a motor driving control system with a current loop and a speed loop was developed. The current loop consists of maximum torque per ampere control and field weakening control. The speed loop is based on a sliding mode control. To make the EV working more smooth, stable and safer, its traction control includes driving motor control and wheel braking control. During some acceleration or cornering, wheel braking control is introduced to keep driving wheels in good slip states, especially to make the car in a good stable and safe state. Simulation study based on MATLAB/Simulink showed the control strategy developed here can make the EV work well, even when it runs on some asymmetric road.
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Uteshevs, Igors, and Anatoly Levchenkov. "Modeling of overheat process control of electric motor." Scientific Journal of Riga Technical University. Power and Electrical Engineering 25, no. 25 (January 1, 2009): 61–64. http://dx.doi.org/10.2478/v10144-009-0013-3.

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Modeling of overheat process control of electric motorThe paper presents the research of heating electric traction motor, the temperature dependence of the load current and control impact. The process of heat in heating electric traction motor is given.
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Putri, Tsamaroh Nidaa, and Priyo Sasmoko. "ALAT PEMANTAU PENGOSONGAN AKUMULATOR 12V/ 5Ah BERBASIS ARDUIONO UNO." Gema Teknologi 18, no. 4 (April 30, 2016): 10. http://dx.doi.org/10.14710/gt.v18i4.21910.

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Tsamaroh Nidaa Putri, Priyo Sasmoko explains that accumulator is a combination of several pieces of cells used for altering the chemical energy into electricity energy used in motor vehicles. Accumulators are used continuously will shrink and drop so it needs to be recharged. To know the state of the battery voltage drop experienced the need for a measurement to determine the ability of the accumulator. Design manufacture accumulator discharge monitoring tool consists of a voltage divider circuit to know the big accumulator voltage in percentage form. Used also an ACS712 current sensor to detect the discharge current and LM35 temperature sensor to determine the temperature of the accumulator. The control system used is the Arduino UNO microcontroller and an LCD for displaying the measurement data. Normal voltage ranges accumulator 12,5V - 13,8V. Accumulator with a capacity of 5Ah takes 8 hours to process discharge when using 20 watt lamp load. If the voltage of the first accumulator on the LCD shows the percentage of 0 % then automatically the system will work to discharge for a second accumulator. The duration of use depends on the large accumulator load used. Keyword:Accumulator, ACS712, capacity accumulator, Arduino UNOReferencesAgustin, Leonandi. 2015. Rancang Bangun Sistem Monitoring Kondisi Aki Pada Kendaraan Bermotor. Skripsi. Universitas Tanjungpura Pontianak.Andri, Helly. 2010. Rancang Bangun System Battery Charging Automatic. Skripsi S1 Teknik Elektro Fakultas Teknik Universitas Indonesia.Asnan, Zainal. 2007. Alat Pengecekan Kapasitas Aki (Accu) Berbasis Personal Computer. Skripsi. Universitas Katolik Widya Mandala Surabaya.Bishop, Owen. 2004. Dasar-dasar Elektronika. Jakarta: Erlangga, Alih Bahasa Irzam Harmein.Fadli, Usman. 2015. Aplikasi Sensor Arus ACS712 Dan Borland Delphi 7.0 untuk Monitoring Penggunaan Daya Listrik pada Rumah Berbasis Arduino UNO. Tugas Akhir. Universitas Diponegoro.Frank D. Petruzella., 2001, Elektronika Industri. Yogyakarta: Penerbit ANDI, Penerjemah Suminto, Drs. MA.,Kadir, Abdul. 2013. Panduan Praktis Mempelajari Aplikasi Mikrokontroler dan Pemrogamannya Menggunakan Arduino. Yogyakarta: Penerbit ANDI.Marpaung, May Harpri Rabiman. 2014. Monitoring Suhu dengan Menggunakan Sensor Suhu LM35 Serta Pengaturan Suhu Pada Otomatisasi Dispenser Berbasis Arduino UNO dengan Tampilan LCD. Tugas Akhir. Universitas Diponegoro.Salim, Emil. 2014. Perancangan dan Implementasi Telemetri Suhu Berbasis Arduino UNO, Skripsi. Universitas Sumatra Utara.Setiyawan, Danang Duwi. 2015. Pengisi Baterai Akumulator Otomatis Berbasis Mikrokontroller. Tugas Akhir. Universitas Gajah Mada.Tooley, Michael. 2003. Rangkaian Elektronik Prinsip dan Aplikasi. Jakarta: Erlangga, Alih Bahasa Irzam Harmein
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Han, Jingang, Xin Gu, Yi Yang, and Tianhao Tang. "Dynamic Improvement with a Feedforward Control Strategy of Bidirectional DC-DC Converter for Battery Charging and Discharging." Electronics 9, no. 10 (October 21, 2020): 1738. http://dx.doi.org/10.3390/electronics9101738.

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With the increasing importance of power accumulator batteries in electric vehicles, the accurate characteristics of power accumulator batteries have an important role. In order to evaluate the power accumulator battery, battery charging and discharging is indispensable. In this article, a H-bridge bidirectional DC-DC converter is presented which can charge and discharge the battery with different voltage levels and one of the merits of this topology is that a wide output voltage range can be easily achieved. In the control part, a proportional-integral (PI) control strategy is adopted to ensure a stable and reliable operation of the converter. Furthermore, compared with the PI control strategy, a duty ratio feedforward control is utilized to obtain the rapid current dynamic response. In this article, firstly, the system configuration for battery charging and discharging is introduced, then the operating principles and mathematical model of the DC-DC converter are analyzed and derived. Secondly, for bidirectional DC-DC converters, the PI control method and duty ratio feedforward control method are put forward and designed. Finally, the simulation model is established based on PSIM software and the experiment platform is also built in lab. The results of the simulation and experiment research show that the H-bridge bidirectional DC-DC converter can operate reliably and stably during the charging, discharging and power flow reverse modes. In addition, the dynamic response of the charging and discharging current can also be further improved by introducing the duty ratio feedforward control method.
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Frantz, Jonathan M., Sushant Khandekar, and Scott Leisner. "Silicon Differentially Influences Copper Toxicity Response in Silicon-accumulator and Non-accumulator Species." Journal of the American Society for Horticultural Science 136, no. 5 (September 2011): 329–38. http://dx.doi.org/10.21273/jashs.136.5.329.

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The use of copper (Cu) in agriculture is widespread as a pesticide, and it is present in high concentrations in certain types of manures. As the use of Cu continues and manure management is incorporated into sustainable systems, the likelihood of Cu toxicity increases. Supplemental silicon has been used to successfully counteract potential micronutrient toxicity. There is currently considerable debate regarding the value of including silicon (Si) as a nutrient in fertility programs and as such, it is not part of a typical management practice in floriculture crop production in the United States. We investigated the potential for Si to ameliorate the effects of Cu toxicity in both a Si-accumulating [zinnia (Zinnia elegans)] and a Si-non-accumulating [snapdragon (Antirrhinum majus)] species. Using visible stress indicators and dry weight analysis, it initially appeared that Si was a significant benefit to only zinnia under Cu toxicity. Enzymatic assays and elemental analysis of leaves, stems, and roots revealed that both species responded to supplemental Si, showing evidence of reduced stress and nutrient concentrations more similar to healthy, control plants than plants exposed to Cu toxicity. Although there appear to be differences in the extent of Si-mediated amelioration of Cu toxicity between these two plants, both responded to supplemental Si. This adds to the growing body of evidence that all plants likely have Si-mediated responses to stress, and its inclusion into fertility programs should be more broadly considered than current practices.
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Sun, Xin Yu. "Cophase Power Supply Control Technology in the Application of the Electric Traction Locomotive." Applied Mechanics and Materials 513-517 (February 2014): 3938–41. http://dx.doi.org/10.4028/www.scientific.net/amm.513-517.3938.

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China's current traction net unilateral power supply mode and the existing traction substation connection and phase change connection determine the existence of stationary phase of traction network. Therefore, the application of modern power electronics and microprocessor control technology and the development of cophase power supply technology with independent intellectual property rights are the way to realize the innovation of traction power supply technology, which will achieve a win-win situation for cophase power and electric power development, it has the vital significance.
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Dissertations / Theses on the topic "Current control of the traction accumulator"

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Kalina, Emil. "Aplikace ultrakapacitorů v dopravních systémech." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-233433.

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The work deals with relatively new components allowing electric energy accumulation – ultracapacitors. It focuses on their application in traffic systems – in independent electric vehicles. Design and verification of a system with ultracapacitor and DC/DC adaptive converter was done. Control of the adaptive converter modifies very positively the time wafeform of the traction accumulator current during the drive cycle. The designed connection of ultracapacitor and DC/DC converter implemented in the drive structure of experimental electric vehicle with induction machine contributes to increment the action radius of the vehicle by 16% (determined by experimental verification). This result was achived particularly by limitation of traction accumulator current peaks, And by more effective storage of energy gained by recuperative braking of the vehicle as well. The core of the system is a control of the adaptive converter in order to provide an active filtration of the accumulator’s current to its long-period mean value, i.e. elimination of current (power) peaks. These are caused by acceleration from non-zero initial vehicle speed or by recuperative braking. This is done by a subsidiary current loop. The converter has a superior voltage regulation loop, which sets in long-time period the voltage of ultracapacitors to the proper value – indirectly dependent on the speed of the vehicle. This ensures the appropriate energy management of the ultracapacitor. In the following, properties of test set of ultracapacitors were verified. Finally, methods of suppression of capacity variability influence in series connection of these components were compiled and critically reviewed.
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Henning, Pieter Hendrik. "Control of a 1.5 MW active power filter and regeneration converter for a Spoornet DC traction substation." Thesis, Stellenbosch : University of Stellenbosch, 2005. http://hdl.handle.net/10019.1/2340.

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Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2005.
Although regenerative braking has been in used in railway systems for a long time already, the energy generated was dissipated in resistor banks. The rapid advances in the power electronics field, accompanied by the development of faster and higher power switching devices in recent years, now make it possible to convert the regenerated electrical energy from DC to AC, which can then be injected into the Eskom grid. A 1.5 MW full scale prototype system was built, installed and tested in a Spoornet DC traction substation. A seven level series-stacked converter topology was used along with a specially designed injection transformer. The system was controlled by the PEC 33 controller board, which was developed at the University of Stellenbosch. The primary function of the system is to function as a regeneration converter and as a secondary function act as an active power filter.
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Benlamine, Raouf. "Etude et réalisation d'une machine électrique à forte densité de couple et fort rapport de sur-couple pour des applications de traction automobile." Thesis, Besançon, 2015. http://www.theses.fr/2015BESA2014/document.

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Le contexte sociétal et environnemental en France et en Europe durant ces dernières années est largement favorable à l’électrification des moyens de transports, principalement les véhicules, afin de réduire les émissions de CO2. Les pouvoirs publics déploient d’importants efforts afin de rendre les véhicules électrifiés plus accessibles aux citoyens, en octroyant des primes conséquentes lors de l’achat de véhicules « propres ». De leur côté, les constructeurs automobiles cherchent à diminuer le coût des véhicules électriques et hybrides en proposant des solutions techniques pouvant réduire le coût de fabrication des organes, principalement les batteries, les moteurs thermiques et électriques, tout en assurant des performances élevés. L’objectif principal de cette thèse est d’étudier et de réaliser une machine électrique répondant à un cahier des charges très contraignant en termes d’encombrement axial et de densité de couple pour une application comme moteur de traction d’un véhicule hybride. De plus, cette machine doit être innovante, robuste et dont le procédé de fabrication est automatisable et à faible coût. Ainsi, un état de l’art élargi sur les différentes machines électriques a été effectué. En fonction des exigences liées à notre application, une machine à flux axial à aimants permanents enterrés à bobinage concentrique a été choisie.Initialement, un modèle analytique simplifié a été établi et couplé à un outil d’optimisation. Les paramètres géométriques et électriques obtenus ont été alors réajustés en utilisant un modèle numérique basé sur les éléments finis 3D. Différentes modifications ont été apportées à cette machine initiale en raison de l’évolution du cahier des charges des performances et des contraintes géométriques. Les grandeurs électromagnétiques telles que le couple et la puissance ont été analysées pour différents points de fonctionnement. Les pertes dans les aimants permanents ont été calculées en développant un modèle numérique hybride basé sur les différences finies 3D, réduisant ainsi le temps de calcul comparativement aux éléments finis 3D. Afin de valider les différents résultats obtenus, un prototype de la machine a été réalisé. Cette machine a également été modélisée en utilisant les Circuits Equivalents Magnétiques quasi-3D. Ce modèle semi-analytique est générique par rapport aux dimensions géométriques et électriques, avec une discrétisation adaptative. De plus, les effets de denture et de saturation sont pris en compte. Les inductions magnétiques, les flux magnétiques et le couple électromagnétique ont pu être obtenus avec ce modèle, en assurant une bonne précision et un temps de calcul réduit comparativement aux éléments finis 3D
The societal and environmental context in France and Europe during the last few years has been largely favorable to the electrification of transportation means, mainly vehicles, in order to reduce CO2 emissions. The authorities are working hard to make the electrified vehicles more affordable, by providing substantial premiums during the purchase of “clean” vehicles. For their part, the automakers are looking to reduce the cost of electric and hybrid electric vehicles by offering technical solutions that can reduce the manufacturing cost of the car components, mainly batteries, thermal and electric motors, while ensuring high performances. The main objective of this thesis is to study and realize an electric machine, which satisfies very restrictive specifications in terms of axial size and torque density in order to be used as a traction motor for a hybrid electric vehicle. In addition, this machine must be innovative, with a high reliability, low cost and automated manufacturing process. Thus, a state of art about the various electric machines has been achieved. Depending on the requirements of our application, an axial flux machine with buried permanent magnets and concentrated winding has been selected. Initially, a simplified analytical model has been developed and coupled to an optimization tool. The obtained geometrical and electrical parameters have been adjusted using a numerical model based on the 3D finite element. Various modifications have been applied to the initial machine due to the modification of the geometrical and performance specifications. Electromagnetic performances such as torque and power have been analyzed for various operating points. Losses in the permanent magnets have been calculated using a hybrid numerical 3D model based on the finite difference and finite element, which allows to reduce the computation time compared to transient 3D finite element. In order to validate the different results, a prototype of the machine has been realized. This machine has also been modeled using a quasi-3D magnetic equivalent circuits. This semi-analytical model is generic regarding the geometrical and electrical parameters, with an adaptive discretization. Furthermore, the saturation and the slotting effects have been taken into account. The magnetic flux density, the flux linkage and the electromagnetic torque have been calculated with this model, ensuring high accuracy and reduced time computation compared to 3D finite element
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Benada, Tomáš. "Ověřovací série rychlonabíječů pro olověné akumulátory 12V a 6V." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219722.

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This thesis is an engineering design of an intelligent fast-charger for lead-acid accumulators. It contains calculations of each component. The switching power supply is the mainstay of the charger that makes the charger portable, lightweight and small. The Intelligent fast-charger for lead-acid accumulators charges the accumulator by method of constant voltage with current limitation of 0,5A, 5A, 10A, 50A. 50A current is used in winter during starting of a car, when the battery can´t provide sufficient current. There are three LEDs placed on the front side of the charger reflecting status of the device. The device comprises safety protection for the charger, supply network and battery.
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Arab, Mohammad-Waseem. "Étude et conception d'un groupe motopropulseur électrique à faibles niveau vibratoire et sonore pour véhicule électrique. Aspects "contrôle - commande"." Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112231/document.

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Dans un contexte mondial régi par de multiples facteurs économiques, énergétiques et environnementaux, la transition vers des modes de transport à zéro émission polluante semble inévitable. De ce fait, les constructeurs automobiles s’investissent de plus en plus dans le développement de groupes motopropulseurs électriques afin d’anticiper les besoins du marché. Parmi les différentes technologies de machines électriques considérées pour cette application, la Machine à Réluctance Variable à Double Saillance (MRVDS) présente des caractéristiques très attractives pour le milieu industriel.Les travaux présentés dans cette thèse visent à élaborer des solutions qui répondent aux points qui bloquent encore l’adoption de la MRVDS dans les véhicules électriques. Dans un premier temps, la commande en couple d’une MRVDS destinée à la traction électrique est analysée. En prenant en considération les exigences imposées par l’application envisagée, une stratégie de commande en couple est développée en intégrant deux méthodes complémentaires sur le plan de fonctionnement de la MRVDS choisie.Dans la deuxième partie, l’asservissement en courant est abordé. Les problématiques du contrôle propres à la MRVDS à forte dynamique de courant sont d’abord identifiées. Ensuite, deux régulateurs de courant, qui répondent à différents conditions d’implantation, sont présentés et validés par simulation.La dernière partie de cette thèse aborde le problème des à-coups d’accélération induits à basse vitesse et de leurs répercussions sur l'agrément de conduite. En effet, ce type de motorisation électrique introduit un nouvel aspect sur cette problématique. Une loi de commande anti-à-coups, composée de deux actions, est développée. Les simulations ont montré la conformité de la performance obtenue en utilisant la loi de commande proposée avec le cahier des charges industriel visé
In a global context governed by multiple economic, energetic and environmental factors, the transition towards transportation modes with zero polluting emissions seems inevitable. Hence, automotive manufacturers are investing increasingly in the development of electric powertrains in anticipation of the market needs. Among the different electric motors technologies considered for this application, the switched reluctance motor (SRM) presents attractive characteristics for the industry.The work presented in this thesis aims to elaborate solutions in response to the points still hindering the adoption of the SRM in electric vehicles. First, torque regulation of an SRM intended for an electric traction is analyzed. Taking into consideration the requirements of the application in hand, a regulation strategy is developed through the integration of two methods which complement each other over the studied SRM range of operation.In the second part, the subject of current regulation in the SRM is discussed. The issues related to current regulation in SRMs disposing of high current dynamics are firstly identified. Then, two current regulators, each adapted to different implementation conditions, are presented and validated through simulations.The last part of this thesis discusses the acceleration jerks induced at very low speeds and their repercussions on driving comfort . Indeed, electric traction introduces a new aspect on this rather classic issue. An anti-jerk control law, composed of two control actions, is developed. Simulations have shown the conformity of the performance obtained with the proposed control law with the target industrial specifications
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Kadlec, Josef. "Nabíječka autobaterií se spínaným zdrojem." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218793.

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The aim of this master’s thesis is provide detailed information about car battery’s charger with a switching power supply. The kind of this power supply is one-pulsed conducting inverter with transformer. The charger’s rates of nominal voltage are 6 and 12 V. The method of charging is charging by constantly voltage with a current limitation. The values of a current limitations are 0.5A, 5A and 20A. The charger’s maximal current is 50A. This current can help to the accumulator with starting of a vehicle. This device is equipped by indicators which indicate the end of charging.
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Huang, Wen-Lung, and 黃文隆. "Implementation of a Sinusoidal Current Injected Three-phase AC-DC Converter with Bi-direction Power Flow Control for an Elevator Traction System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/44anjw.

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碩士
國立臺北科技大學
電機工程系所
97
The main purpose of this thesis focuses on implementation of a three-phase AC-DC converter with bi-directional power flow control for elevator’s traction system. The converter not only provides the power regeneration to grid when elevator breaking, but also ensures the power factor is near 1 to meet the international standards and regulations. The control strategy of this thesis is based on cascade control of current and voltage loop to force three-phase currents as sinusoidal, power factor near 1, and stable DC-link voltage. Good current command tracking and better load regulation of DC-link voltage are yielded using synchronous frame vector control. Moreover, a paralleled three-phase AC-DC converter for energy regeneration is developed to reduce power capacity of the converter and fulfill the requirements for different applications. All the control schemes are full-digitally implemented using a RISC-based MCU - Renesas SH 7137. To achieve the purpose for increasing the software execution efficiency, the proposed control strategies are all coded by assembly language. Finally, the converter was fully tested on elevator tower to show the effectiveness of proposed control scheme.
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Books on the topic "Current control of the traction accumulator"

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Modood, Tariq. Multicultural Citizenship and New Migrations1. Edinburgh University Press, 2018. http://dx.doi.org/10.3366/edinburgh/9781474428231.003.0009.

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Through offering a normative conceptualisation of a national case, Britain, I ask what is the relationship between the post-immigration normative project of accommodating citizens-marked-by-origin and the managing of current flows of migrations and mobilities? While multiculturalism requires reconceiving citizenship and shared identities, it has assumed that a collectivity of citizens in the form of a state/polity has the right and the capacity to control immigration and that migrants want to be and should be accepted as citizens. But what if the nature of immigration (and other relevant circumstances) change such that difference is no longer so salient an issue, citizenship no longer seems to be so normatively prized by migrants; and immigration is less amenable to control? Does multiculturalism still have traction in these new circumstances? British multiculturalism was developed in a context of immigration control and does not challenge the right of the state to control immigration, while insisting that it must not be exercised in ways that are discriminatory or stigmatising in relation to the composite and overlapping criteria of race, ethnicity and religion that are at the heart of post-immigration British multiculturalism. While a cosmopolitan version of multiculturalism is also present in Britain and is largely compatible with a more political, communitarian national multiculturalism, the two seem to have incompatible views on national identity concerns and so on immigration control. This is seriously problematic for progressive politics today but a solution is not clear.
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Book chapters on the topic "Current control of the traction accumulator"

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Arof, Saharul, Noramlee M. Noor, R. Mohamad, Emilia Noorsal, P. A. Mawby, and H. Arof. "Close Loop Feedback Direct Current Control in Driving Mode of a Four Quadarnts Drive Direct Current Chopper for Electric Vehicle Traction Controlled Using Fuzzy Logic." In Advanced Structured Materials, 57–71. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46036-5_7.

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Arof, Saharul, N. M. Noor, M. F. Alias, Emilia Noorsal, Philip Mawby, and H. Arof. "Digital Proportional Integral Derivative (PID) Controller for Closed-Loop Direct Current Control of an Electric Vehicle Traction Tuned Using Pole Placement." In Advanced Structured Materials, 73–89. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-46036-5_8.

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Pivnyak, G., M. Rogoza, Yu Papaika, and A. Lysenko. "Traction and energy characteristics of no-contact electric mining locomotives with AC current thyristor converters." In Power Engineering, Control and Information Technologies in Geotechnical Systems, 1–6. CRC Press, 2015. http://dx.doi.org/10.1201/b18475-1.

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Tojiddin Khayrullaevich, Juraev, Norov Sobirjon Negmurodovich, and Musulmanov Furqat Shodiyevich. "Study of the Parameters of the Planner with a Screw Working Body." In Direct Torque Control Strategies of Electrical Machines [Working Title]. IntechOpen, 2020. http://dx.doi.org/10.5772/intechopen.93308.

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This chapter examined the theoretical background of the use of a screw working body in front of the planner bucket and conducting experiments in laboratory conditions with the proposed working body. This work supports the practical solution of using a screw working particle in the current field planning. Significance of the work reducing traction resistance to soil movement up to 20% enables the tractor unit to work at higher speeds of translational motion; the latter contributes to increased productivity, improved planning quality and reduced cash costs per unit of work performed. The chapter was prepared under results of research in the Mechanics Laboratory of Bukhara Engineering Technological Institute.
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Conference papers on the topic "Current control of the traction accumulator"

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Popescu, Mihaela, Alexandru Bitoleanu, and Vlad Suru. "Indirect current control in active DC railway traction substations." In 2015 Intl Aegean Conference on Electrical Machines & Power Electronics (ACEMP), 2015 Intl Conference on Optimization of Electrical & Electronic Equipment (OPTIM) & 2015 Intl Symposium on Advanced Electromechanical Motion Systems (ELECTROMOTION). IEEE, 2015. http://dx.doi.org/10.1109/optim.2015.7426954.

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Michalik, Jan, Jan Molnar, and Zdenek Peroutka. "Optimal control of traction single-phase current-source active rectifier." In 2010 14th International Power Electronics and Motion Control Conference (EPE/PEMC 2010). IEEE, 2010. http://dx.doi.org/10.1109/epepemc.2010.5606604.

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Hassan, Mannan, Rao Atif, Xinglai Ge, Woldegiorgis Abebe Teklu, Hafiz Mudassir Munir, and Muhammad Amjad. "Model Predictive Current Control of Multilevel Inverter in Traction System." In 2019 International Conference on Electrical, Communication, and Computer Engineering (ICECCE). IEEE, 2019. http://dx.doi.org/10.1109/icecce47252.2019.8940746.

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Su, Hongsheng, and Qunzhan Li. "Rough Controlling TSC for Reactive Current Compensation in Traction Substations." In 2006 5th International Power Electronics and Motion Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/ipemc.2006.297140.

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Zhang, Lixia, Wei Kang, Li Jia, Min Zhao, and Ronggen Xu. "Control of Bidirectional Current Source SVPWM Converter in the Power Accumulator Battery Testing System." In 2010 Asia-Pacific Power and Energy Engineering Conference (APPEEC 2010). IEEE, 2010. http://dx.doi.org/10.1109/appeec.2010.5449233.

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Su, Hongsheng, and Qunzhan Li. "Rough Controlling TSC for Reactive Current Compensation in Traction Substations." In 2006 CES/IEEE 5th International Power Electronics and Motion Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/ipemc.2006.4778019.

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Dekker, N. M. J. "Stray current control - an overview of options." In IEE Seminar. DC Traction Stray Current Control - `Offer a Stray a Good Ohm?'. IEE, 1999. http://dx.doi.org/10.1049/ic:19990911.

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Michalik, Jan, Jan Molnar, and Zdenek Peroutka. "New Control Algorithm for Traction Single-Phase Current-Source Active Rectifier." In 2007 IEEE International Symposium on Industrial Electronics. IEEE, 2007. http://dx.doi.org/10.1109/isie.2007.4374673.

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Bo, Liu, Peng Tao, Shi Lu, He Ze-zhou, and Yang Chao. "Multi fault diagnosis of traction motor current sensor based on state observer." In 2016 Chinese Control and Decision Conference (CCDC). IEEE, 2016. http://dx.doi.org/10.1109/ccdc.2016.7532269.

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Bohl, Daniel, Nikolaos Kariotoglou, Andreas B. Hempel, Paul J. Goulart, and John Lygeros. "Model-based current limiting for traction control of an electric four-wheel drive race car." In 2014 European Control Conference (ECC). IEEE, 2014. http://dx.doi.org/10.1109/ecc.2014.6862532.

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Reports on the topic "Current control of the traction accumulator"

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Drive modelling and performance estimation of IPM motor using SVPWM and Six-step Control Strategy. SAE International, April 2021. http://dx.doi.org/10.4271/2021-01-0775.

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This paper presents a comprehensive evaluation of the performance of an interior permanent magnet (IPM) traction motor drive, and analyses the impact of different modulation techniques. The most widely used modulation methods in traction motor drives are Space vector modulation (SVPWM), over-modulation, and six-step modulation have been implemented. A two-dimensional electromagnetic finite element model of the motor is co-simulated with a dynamic model of a field-oriented control (FOC) circuit. For accurate tuning of the current controllers, extended complex vector synchronous frame current regulators are employed. The DC-link voltage utilization, harmonics in the output waveforms, torque ripple, iron losses, and AC copper losses are calculated and compared with sinusoidal excitation. Overall, it is concluded that the selection of modulation technique is related to the operating condition and motor speed, and a smooth transition between different modulation techniques is essential to achieve a better performance.
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