TAILIEUCHUNG - Research on high voltage power for 10kV linked SVG

The paper detailed analysis of the working principle and characteristics of this new way to take power, and verified on prototype, present the experimental results. | 278 The Open Electrical Electronic Engineering Journal 2015 9 278-284 Send Orders for Reprints to reprints@ Open Access Research on High Voltage Power for 10kV Linked SVG Wang Huadong and Cai Xu Electronic Information and Electrical Engineering Electrical Engineering Shanghai Jiaotong University Shanghai China Abstract 10kV linked SVG module power supply from their own h-bridge power supply is unstable. To solve this problem this paper proposes a new way to take power using a combination of full-bridge push-pull circuit with isolation transformer to solve the logical drive power between the power module and the SVG device self-consistent problem. The paper detailed analysis of the working principle and characteristics of this new way to take power and verified on prototype present the experimental results. Keywords h-bridge output high voltage isolation IGBT power module isolation transformer SVG take power. 1. INTRODUCTION Static Synchronous Compensator STATCOM also known as domestic SVG is one of the core equipment FACTS Flexible Alternative Current Transmission Systems . The system can quickly compensate reactive and take effective governance for harmonics voltage fluctuations and flicker and other power quality problems improve the safety and reliability of the system 1-3 . With the limits of the IGBT can withstand voltage level current high voltage SVG module cascading is usually used as the main circuit topology so require a separate power supply to drive IGBT for each module. Document 1 adopted high pulse transformers high-voltage insulated wire high-frequency current transformers rectifiers and other design of a high-voltage isolation multiple low-voltage DC power supply with too many components the reliability is not high Document 2 design a parallel high-voltage high-frequency isolated power bus due to the use of high frequency bus isolation transformers for special needs designed Document 3 use the main power modules provide an AC bus to

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