CAJ | 학술논문

针对变压器并列中有载调压分接控制的循环电流制问题,设计循环电流检测分析模型,定量分离出循环电流,以此提出变压器并列的最小循环电流法及无功平衡法,通过对有载调压分接头的控制将循环电流降低到最小或使流经变压器的无功流根据变压器的容量达到平衡.该控制方法对并列变压器的数量和容量等参数没有限制,可将并列的条件扩展到高压侧分列及分接头开关挡位数不等的应用.文中同时对基于循环电流控制原理的变压器电压控制装置的基本设计方案以及同地区电压/无功控制系统自动电压控制(AVC)的协调运行等进行了论述.
침대변압기병렬중유재조압분접공제적순배전류제문제,설계순배전류검측분석모형,정량분리출순배전류,이차제출변압기병렬적최소순배전류법급무공평형법,통과대유재조압분접두적공제장순배전류강저도최소혹사류경변압기적무공류근거변압기적용량체도평형.해공제방법대병렬변압기적수량화용량등삼수몰유한제,가장병렬적조건확전도고압측분렬급분접두개관당위수불등적응용.문중동시대기우순배전류공제원리적변압기전압공제장치적기본설계방안이급동지구전압/무공공제계통자동전압공제(AVC)적협조운행등진행료논술.
An analytical module is given to measure and minimize the circulating current in paralleling transformers. The calculation of circulating current in transformer paralleling is made as an example. The circulating method and balanced VAR method are discussed and integrated into a tap changer control. This method is suitable for all applications including transformers with different capacities and number of transformers in parallel. The balanced VAR method extends the paralleling prerequisites to source side separation application where the master-slave method is not working. A voltage control device implemented with the method discussed is introduced, together with regional automatic voltage control (AVC) and substation automation (SA) integration.