Reactive power compensation device based on novel modular multilevel topology and control method thereof
A modular multi-level and compensation device technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, harmonic reduction devices, etc., can solve problems such as insufficient circulation suppression ability and limited compensation
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[0051] The specific embodiment of the present invention is described in conjunction with the accompanying drawings. The reactive power compensation device based on the novel modular multi-level topology of the present invention includes a three-phase AC power supply, a resistive load, an MMC converter, a control circuit, a signal detection circuit and Drive circuit, the MMC converter includes three bridge arms with the same structure connected in parallel, each bridge arm includes an upper bridge arm and a lower bridge arm that are symmetrical about the midpoint of the bridge arm and connected in series, and the upper bridge arm includes mutual Resistors, inductors, several half-bridge units and an H-bridge unit connected in series, the resistance on the upper bridge arm of the first bridge arm is R11, the resistance on the lower bridge arm is R12, and the upper bridge arm of the second bridge arm The resistance on the lower bridge arm is R21, the resistance on the lower bridge...
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