Operation Mode Control Algorithm and Modeling of Stand Alone Power Supply System with SOFC on Biogas

This paper presents a modified power supply system based on the current alternating current (AC)-fed railways with neutral zones that can further improve the eco-friendliness and smart level of railways. The modified system complements the existing infrastructure with additional energy-storage-based smart electrical infrastructure. This infrastructure comprises power electronic devices with energy storage system connected in parallel to both sides of each neutral zone in the traction substations, power electronic devices connected in parallel to both sides of each neutral zone in section posts, and an energy management system. The description and functions of such a modified system are outlined in this paper. The system allows for the centralized- and distributed-control of different functions via an energy management system. In addition, a control algorithm is proposed, based on the modified system for regenerative braking energy utilization. This would ensure that all the regenerative braking energy in the whole railway electrical system is used more efficiently. Finally, a modified power supply system with eight power supply sections is considered to be a case study; furthermore, the advantages of the proposed system and the effectiveness of the proposed control algorithm are verified.

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Studies on the requirements of the power supply system for the resistive-wall-mode control in JT-60SA

Fusion Engineering and Design ◽

10.1016/j.fusengdes.2013.01.094 ◽

2013 ◽

Vol 88 (9-10) ◽

pp. 1509-1512 ◽

Cited By ~ 11

Author(s):

Alberto Ferro ◽

Elena Gaio ◽

Manabu Takechi ◽

Makoto Matsukawa ◽

Luca Novello

Keyword(s):

Power Supply ◽

Power Supply System ◽

Supply System ◽

Mode Control ◽

Resistive Wall Mode ◽

Resistive Wall

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A comprehensive power analysis of induction heating power supply system using multilevel neutral point clamped inverter with optimum control algorithm

2015 IEEE 11th International Conference on Power Electronics and Drive Systems ◽

10.1109/peds.2015.7203544 ◽

2015 ◽

Cited By ~ 1

Author(s):

Bashar Mohammed Flayyih ◽

Mohammed Zaki Ahmed ◽

Stuart MacVeigh

Keyword(s):

Induction Heating ◽

Power Supply ◽

Power Analysis ◽

Control Algorithm ◽

Power Supply System ◽

Supply System ◽

Neutral Point ◽

Heating Power ◽

Optimum Control

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Research on Power Supply Scheme of Electrical Submersible Pump Fed by Inverter Based on Long Cable

MATEC Web of Conferences ◽

10.1051/matecconf/201926002007 ◽

2019 ◽

Vol 260 ◽

pp. 02007

Author(s):

Yonghong Deng ◽

Zhishan Liang

Keyword(s):

Power Supply ◽

Control Algorithm ◽

Power Supply System ◽

Functional Relationship ◽

Frequency Converter ◽

Supply System ◽

Submersible Pump ◽

Smart Power ◽

Electrical Submersible Pump ◽

Simulation Results

Electrical submersible pump (ESP) require remote operation of inverter via a long cable. The conventional control algorithm of inverter does not operate effectively. In this paper, a new power supply scheme is proposed, namely: Inverter - Motor - Generator - Transformer – Long Cable - ESP power supply program, referred to as IMGEESP power supply system. Based on the analysis of the IMGEESP, the model of the long cable was established, the functional relationship between inverter and smart power of the IMGEESP was deduced, so that the voltage model is constructed. The frequency converter and the intelligent power supply of IMGEESP are coordinated and controlled according to the speed command of the ESP and the cable length. Simulation results verifies the correctness and effectiveness of the proposed IMGEESP.

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Field oriented control of PMSM drive with backup power supply

Nexo Revista Científica ◽

10.5377/nexo.v34i04.12664 ◽

2021 ◽

Vol 34 (04) ◽

pp. 1282-1289

Author(s):

Maxim Bobrov ◽

Anatoly Shashunkin

Keyword(s):

Electric Drive ◽

Power Supply ◽

Power Supply System ◽

Operation Mode ◽

Power Source ◽

Supply System ◽

Voltage Source ◽

Field Oriented Control ◽

Permanent Magnet Synchronous Machine ◽

Switching System

The primary purpose of the article is to examine the field oriented control system of permanent magnet synchronous machine (PMSM) electric drive with backup power supply. Authors propose to use bi-directional DC-DC converter to ensure the «hot» backup operation mode in case of grid fault. The change-over switching system, which provide transfer of voltage-source inverter (VSI) from DC link to the backup power source is considered. The presented system provides a good dynamic transient process; the results are confirmed by simulation in Psim software. Moreover, based on the results acquired, an electric drive based on PMSM with field oriented control and a backup power supply system from the battery via a bi-directional DC-DC converter is capable of operating according to the principles of «hot» backup.

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Improvement of Quadruple Structure and Optimization of Control Algorithm for Co-Phase Traction Power Supply System

Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University ◽

10.1051/jnwpu/20203851112 ◽

2020 ◽

Vol 38 (5) ◽

pp. 1112-1121

Author(s):

Shu Cheng ◽

Chang Liu ◽

Jianxiang Tang ◽

Tianjian Yu ◽

Kaidi Li

Keyword(s):

Power Supply ◽

Control Algorithm ◽

Power Supply System ◽

Reactive Power ◽

Supply System ◽

System Structure ◽

Traction Power Supply System ◽

Traction Power Supply ◽

And Control ◽

Traction Power

Co-phase power supply is one of the key technologies to solve the technical bottlenecks such as electrical phase separation zone, poor power quality and defects in structure and control algorithms in traditional traction power supply systems and single co-phase power supply schemes, and an inevitable way to realize the development of electrified railways in the direction of safety, high speed and heavy load. Based on the single co-phase power supply technology, a novel quadruple co-phase power supply scheme with negative sequence elimination and to suppress reactive power and harmonic better for the two aspects of the system structure improvement and control algorithm optimization is proposed by combining the technologies of power system flexible transmission grid-connected and multiple inverters. Finally, the simulation model for the novel co-phase traction power supply system was designed and built, and the present method was verified by a set of simulation experiments so as to obtain the expected results.

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Power balanced control of rectifier permanent magnet generator sets

Journal of Intelligent & Fuzzy Systems ◽

10.3233/jifs-189338 ◽

2020 ◽

pp. 1-11

Author(s):

Gongfei He ◽

Bingyi Zhang ◽

Guihong Feng

Keyword(s):

Permanent Magnet ◽

Power Supply ◽

Power Supply System ◽

Operation Mode ◽

High Energy ◽

Supply System ◽

High Energy Density ◽

Parallel Operation ◽

Loop Control ◽

Generator Sets

With the wide application of electric drive equipment and variable frequency load, the power supply system based on the DC grid has attracted much attention because of its high energy density and simple control, and the operation mode of rectifier AC synchronous generators operating in parallel is often adopted. The available topology structures of the rectifier permanent magnet (PM) generator sets are analyzed in this paper, the parallel operation principle of uncontrolled rectifier PM generator sets is analyzed in theory. The parallel operation characteristics of the generator sets are summarized when the voltage-stabilizing and power balanced measures are not taken, and the influence factors of power balancing among parallel operation generators are analyzed. The power-balanced method of rectifier generator sets operating in parallel based on a master-slave control strategy is proposed, which can realize power balanced with the closed-loop control of the DC side output current. The simulation and experiment results show that the proposed method can realize the power balanced control of rectifier generator sets operating in parallel well. The output power of each generator set can be distributed according to capacity. The rationalization proposal of how to matching generators’ parameters in the power supply system of rectifier PM generator sets operating in parallel is given.

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