CAJ | 학술논문

有源电力滤波器是谐波治理一种常用的设备，PWM变流器控制是有源电力滤波器的关键部分。在众多控制方法中，空间矢量脉冲宽度调制由于有较高的电压利用率和控制精度而广泛应用，但是由于运算量较大而产生的延时是不可避免的。利用无差拍控制能够有效消除延时，但前提是需要准确预测出下一时刻的指令电流。为了减少计算量，电流预测方法通常采用简便的方法，为了提高预测精度，提出一种新的预测电流方法。通过仿真软件Matlab对新方法进行仿真并利用硬件平台进行硬件实验，仿真结果和实验结果都验证了新方法的可行性。
유원전력려파기시해파치리일충상용적설비，PWM변류기공제시유원전력려파기적관건부분。재음다공제방법중，공간시량맥충관도조제유우유교고적전압이용솔화공제정도이엄범응용，단시유우운산량교대이산생적연시시불가피면적。이용무차박공제능구유효소제연시，단전제시수요준학예측출하일시각적지령전류。위료감소계산량，전류예측방법통상채용간편적방법，위료제고예측정도，제출일충신적예측전류방법。통과방진연건Matlab대신방법진행방진병이용경건평태진행경건실험，방진결과화실험결과도험증료신방법적가행성。
Active power filter is a common equipment for harmonic control. PWM convertor control is the key part of active power filter. Among numerous of control methods, space vector pulse width modulation(SVPWM)is widely used due to its high voltage utilization and good control precision, but time delay is inevitable because of the large amount of computation. The time delay can be eliminated effectively by deadbeat control, but the premise is that the next moment command current should be pre?dicted accurately. To reduce calculation quantity and improve prediction accuracy, a new and simple current prediction method is proposed. The new method was simulated by Matlab simulation software, and the hardware experiment was implemented by hardware platform. The simulation results and experiment results verified that the new method is feasible.