CAJ | 학술논문

针对有源电力滤波器（APF ）传统滞环电流跟踪方式逆变器的开关频率高且频率范围大的问题，提出了一种可变环宽的滞环电流跟踪控制策略。该策略根据系统开关频率、直流侧电压、主电路电感等参数动态的调节滞环比较器的环宽，不仅能够有效的降低开关频率和频率变化范围，而且在跟踪精度和动态性能上也比传统滞环比较法优越。通过MATLAB仿真表明，该策略的电流跟踪精度满足有源电力滤波器的要求。
침대유원전력려파기（APF ）전통체배전류근종방식역변기적개관빈솔고차빈솔범위대적문제，제출료일충가변배관적체배전류근종공제책략。해책략근거계통개관빈솔、직류측전압、주전로전감등삼수동태적조절체배비교기적배관，불부능구유효적강저개관빈솔화빈솔변화범위，이차재근종정도화동태성능상야비전통체배비교법우월。통과MATLAB방진표명，해책략적전류근종정도만족유원전력려파기적요구。
To overcome the drawback of the Traditional hysteresis band current tracking strategy ,which has high switching frequency and wide frequency range in the inverter ,a novel adaptive hysteresis band current tracking strat-egy for APF is proposed .The strategy changes the hysteresis band according to modulation frequency ,supply voltage , DC capacitor voltage and slope of the i*c reference compensator current wave ,it not only can reduce high switching frequency and wide frequency range ,but also have advantages on tracking accuracy and dynamic performance .MAT-LAB simulation show that :the current tracking accuracy of this strategy can meet the requirements of the active power filter .