CAJ | 학술논문

矩阵式变流器间接空间矢量调制算法通过“虚拟整流器”＋“虚拟逆变器”相冗，运行工况复杂。该文通过虚拟整流侧三角函数分析，推出其SVPWM简化算法；提出虚拟逆变侧无扇区空间矢量脉宽调制，建立非正交K-L120。坐标系，无需扇区判断直接求解虚拟逆变侧三相桥臂开关占空比。通过新型占空比与传统虚拟整流占空比区间结合，将常规矩阵式变流器虚拟整流＋虚拟逆变调制算法扇区判断的36种工况缩减至18种，大大简化算法实现过程，提高计算实时性。仿真实验结结合控制模式进行综合调制，其空间调制占空比组合方式繁果表明了该方法的正确性和有效性。
구진식변류기간접공간시량조제산법통과“허의정류기”＋“허의역변기”상용，운행공황복잡。해문통과허의정류측삼각함수분석，추출기SVPWM간화산법；제출허의역변측무선구공간시량맥관조제，건립비정교K-L120。좌표계，무수선구판단직접구해허의역변측삼상교비개관점공비。통과신형점공비여전통허의정류점공비구간결합，장상규구진식변류기허의정류＋허의역변조제산법선구판단적36충공황축감지18충，대대간화산법실현과정，제고계산실시성。방진실험결결합공제모식진행종합조제，기공간조제점공비조합방식번과표명료해방법적정학성화유효성。
The indirect space vector modulation approach of matrix converters （MC） can be synthesized by the output-voltage and input-current space vector modulation, with its combination algorithm of duty cycle being cumbersome and operating conditions being complex. Based on the trigonometric function analyses in the fictitious rectifier side, a simplified SVPWM algorithm was proposed firstly. Then a no-sector space vector pulse width modulation was proposed in the fictitious inverter side, in which a non-orthogonal K-L 120~ coordinate system was established. In this way, the switch duty cycle of the three-phase bridge arm could be solved directly without judging sectors. By combining the novel duty cycle mode and the traditional fictitious rectifier duty cycle section, 36 operation conditions in traditional algorithm were reduced to the number of 18, therefore, greatly simplified the calculation process and enhanced the real-time performance. Simulation and experimental results show that the feasibility and validity of the new approach.