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1·The main circuit includes parallel fixed compensating capacitor, variable compensating inductor and IGBT, etc.

主电路包括并联固定补偿电容、可变补偿电感和IGBT器件等。

2·This paper analyses source of error qualitatively. The result is the loss resistance of inductor and capacitor with is variable the frequency. Variation direction is different, not the same.

定性地分析了误差的来源，得出的结论是电感电容内部的损耗电阻随着频率的变化而变化，变化方向相反而并非相同。