CAJ | 학술논문

提出一种新颖配电变压器一体化静止同步补偿装置（DT-STATCOM）的设计思想和方法：基于功率平衡原理,将STATCOM从变压器高压绕组抽头接入,充分利用配电变压器的富余容量来补偿系统所需的无功功率。阐述了DT-STATCOM系统无功补偿的理论基础,提出了多种DT-STATCOM系统结构。针对Dyn型变压器,重点研究了变压器高压绕组多抽头DT-STATCOM系统结构,分析了该结构对变压器绕组电流分布的影响,选择了合适的抽头电压等级。仿真结果表明,DT-STATCOM系统结构具有很好的无功功率补偿性能。
제출일충신영배전변압기일체화정지동보보상장치（DT-STATCOM）적설계사상화방법：기우공솔평형원리,장STATCOM종변압기고압요조추두접입,충분이용배전변압기적부여용량래보상계통소수적무공공솔。천술료DT-STATCOM계통무공보상적이론기출,제출료다충DT-STATCOM계통결구。침대Dyn형변압기,중점연구료변압기고압요조다추두DT-STATCOM계통결구,분석료해결구대변압기요조전류분포적영향,선택료합괄적추두전압등급。방진결과표명,DT-STATCOM계통결구구유흔호적무공공솔보상성능。
The novel design idea and method of an integration system of distribution transformer and static synchronous compensator (DT-STATCOM) is proposed. Based on the power balance principle, STATCOM is accessed in the system from the taps at transformer high voltage windings to make full use of the spare capacity of the distribution transformer compensating the system reactive power. The theoretical basis for DT-STATCOM reactive power compensation is described, several system structures of DT-STATCOM are presented. For Dyn type transformers, the structure of DT-STATCOM with multi-tap at the transformer high voltage windings is emphatically studied, and its influence on the current distribution in the transformer windings is analyzed, at last an appropriate tap voltage is selected. Simulation results show that the proposed DT-STATCOM system structure has good performance of reactive power compensation.