Control Algorithm For Bidirectional Converters In The PV Power Supply System With Intelligent PV Modules

2021 ◽  
Author(s):  
Georgy Solovov ◽  
Nikolay Rodkin ◽  
Konstantin Kryukov ◽  
Ekaterina Erokhina ◽  
Nikolay Baranov
Keyword(s):  
Power Supply ◽  
Control Algorithm ◽  
Power Supply System ◽  
Supply System ◽  
Bidirectional Converters ◽  
Pv Modules

scholarly journals Energy-Storage-Based Smart Electrical Infrastructure and Regenerative Braking Energy Management in AC-Fed Railways with Neutral Zones

Energies ◽  
2019 ◽  
Vol 12 (21) ◽  
pp. 4053 ◽  
Author(s):  
Zhixuan Gao ◽  
Qiwei Lu ◽  
Cong Wang ◽  
Junqing Fu ◽  
Bangbang He
Keyword(s):  
Energy Storage ◽  
Energy Management ◽  
Power Supply ◽  
Control Algorithm ◽  
Power Supply System ◽  
Electronic Devices ◽  
Supply System ◽  
Regenerative Braking ◽  
Energy Management System ◽  
Power Electronic

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.

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

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.

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

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.

Development of the algorithm for the selection of a wind generator-based autonomous power supply system

2019 ◽  
Vol 2 (1) ◽  
pp. 8-16 ◽  
Author(s):  
P. A. Khlyupin ◽  
G. N. Ispulaeva
Keyword(s):  
Wind Turbines ◽  
Power Supply ◽  
Alternative Energy ◽  
Power Supply System ◽  
Supply System ◽  
Power Generators ◽  
Energy Devices ◽  
Wind Generator ◽  
Alternative Energy Sources ◽  
Selection Of

Introduction: The co-authors provide an overview of the main types of wind turbines and power generators installed into wind energy devices, as well as advanced technological solutions. The co-authors have identified the principal strengths and weaknesses of existing wind power generators, if applied as alternative energy sources. The co-authors have proven the need to develop an algorithm for the selection of a wind generator-based autonomous power supply system in the course of designing windmill farms in Russia. Methods: The co-authors have analyzed several types of wind turbines and power generators. Results and discussions: The algorithm for the selection of a wind generator-based autonomous power supply system is presented as a first approximation. Conclusion: The emerging algorithm enables designers to develop an effective wind generator-based autonomous power supply system.

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