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A new hybrid active power filter (NHAPF) and its corresponding controlling method are proposed in the paper, which can be applied in high voltage system. The topology structure of NHAPF is given and its compensating principle is described. The corresponding controlling method is a power direct control, which need not the lower pass filter and improve the performance of detecting precision and velocity. Simulating results show that the feasibility and validity of the compensated system. Harmonic currents and reactive power are compensated well.