CAJ | 학술논문

移相器是调节线路功率的有效手段，对于提高设备利用率、平衡潮流等具有重要意义。以晶闸管控制的双芯对称型移相器为对象，在实时数字仿真器(RTDS)中建立了一次设备的仿真模型，并开发了控制装置进行系统仿真研究。针对阀组触发脉冲对系统运行的影响，提出了触发脉冲控制策略，固定挡位时提前触发角触发，挡位调节过程中监测阀组电流过零关断后触发，并提出了一种阀组电流过零的检测方法。仿真结果表明，提出的控制策略在固定挡位时，系统运行稳定无谐波，挡位调节过程中系统无冲击电流、过渡平滑。
이상기시조절선로공솔적유효수단，대우제고설비이용솔、평형조류등구유중요의의。이정갑관공제적쌍심대칭형이상기위대상，재실시수자방진기(RTDS)중건립료일차설비적방진모형，병개발료공제장치진행계통방진연구。침대벌조촉발맥충대계통운행적영향，제출료촉발맥충공제책략，고정당위시제전촉발각촉발，당위조절과정중감측벌조전류과령관단후촉발，병제출료일충벌조전류과령적검측방법。방진결과표명，제출적공제책략재고정당위시，계통운행은정무해파，당위조절과정중계통무충격전류、과도평활。
The phase shifter as an efficient measure of regulating the power flow by inserting compensation voltage has important significance for improving the utilization ratio of transmission lines,balancing system power flow,and etc.Based on the thyristor controlled double core symmetry phase shifter,a simple system model is built in the real time digital simulator (RTDS) and the control device is developed.In consideration of the influence of different firing angles,a control strategy is proposed.The firing pulse is advanced before current zero-crossing when the voltage tap is fixed and after current zero-crossing when the voltage tap is being regulated.And a detection method of current zero-crossing is also presented.The result shows that the system is stable and harmonic-free at the fixed voltage tap.The transition is smooth and short-current-free during voltage tap regulation.