CAJ | 학술논문

双空间矢量脉宽调制(SVPWM)是六相同步风力发电机数字控制系统中最容易实现的一种调制策略，电流脉动是衡量调制策略电流波形质量与电机发热特性的重要指标。文中对双SVPWM调制电压矢量在矢量空间解耦坐标系中的映射特性进行分析，并指出电流脉动的原理。利用数值分析方法对单个基波周期内的谐波畸变因子(HDF)与电流脉动进行数学推导。利用最大脉动电流逆向推导的方法，得到电抗器选型参数，此选型方案简单快捷，无需繁琐的分步仿真分析。最后，通过仿真和实验结果与数值推导结果进行对比，验证了电流脉动数学推导与电抗器选型的有效性。
쌍공간시량맥관조제(SVPWM)시륙상동보풍력발전궤수자공제계통중최용역실현적일충조제책략，전류맥동시형량조제책략전류파형질량여전궤발열특성적중요지표。문중대쌍SVPWM조제전압시량재시량공간해우좌표계중적영사특성진행분석，병지출전류맥동적원리。이용수치분석방법대단개기파주기내적해파기변인자(HDF)여전류맥동진행수학추도。이용최대맥동전류역향추도적방법，득도전항기선형삼수，차선형방안간단쾌첩，무수번쇄적분보방진분석。최후，통과방진화실험결과여수치추도결과진행대비，험증료전류맥동수학추도여전항기선형적유효성。
Dual space vector pulse width modulation(SVPWM)is the easiest modulation strategy to implement in the six-phase synchronous wind power generator digital control system,and the current ripple is an important index to weigh the current waveform quality and the generator height property of a modulation strategy.This paper analyzes the mapping property of the dual voltage vector used in the space vector decoupling coordinates,and points out the principle of the current ripple.The mathematical expressions of the harmonic distortion factor and current ripple in a single fundamental period are derived using the numerical analysis method.The reactor parameter is obtained by the backward-deduction method with the information of maximum current ripple,which is simple to implement and does not need complex simulation analysis.The validity of the deduction process and reactor selection is confirmed by comparison of deduction results,simulation results and experimental results.