提出了一种计算并联型有源电力滤波器电源电流参考信号和补偿电流指令信号的新方法。
A new method to calculate the source current reference and the compensating current reference for shunt active power filter (APF) is presented.
有源滤波器的应用中要求补偿电流的指令值计算要准确。
One key problem with APF application is how to accurately calculate harmonic currents for compensation.
论述了利用瞬时无功功率理论从三相不对称电流中正确检测出三相正序有功电流，并用计算出的指令电流对系统进行补偿的原理。
Based on the instantaneous reactive power theory the method correctly detects the active positive-ord current from unsymmetrical currents and applies calculated command current to compensate system.
以无功电流差补值作为控制参量，并以高次谐波电流作为谐振保护信号，由专家系统给出投切无功补偿电容的控制指令。
Then, adopting reactive current margin and harmonics as control and protection variable, an expert system was formed to control thyristor switched capacitor.
制定了双相型SVG的控制策略，实现对指令电流的跟踪控制，使SVG输出所需的补偿电流。
And then the control strategy is formulated, the tracking control of instruction current is realized. On the basis of the work above the compensation current needed is produced by the dual-phase SVG.
制定了双相型SVG的控制策略，实现对指令电流的跟踪控制，使SVG输出所需的补偿电流。
And then the control strategy is formulated, the tracking control of instruction current is realized. On the basis of the work above the compensation current needed is produced by the dual-phase SVG.
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