Active RCD adaptive voltage balancing control strategy for high-voltage uncontrolled rectifier valve

Abstract The voltage balance of the series diodes is premise to ensure stable and reliable operation high uncontrolled rectifier valve. When traditional RC RCD balancing methods are applied valves in far-reaching offshore wind farms, complex changeable operating environment poses a challenge anti-interference effect snubber circuit. In this paper, an active adaptive control strategy with strong ability proposed based on establishment model parameter tuning method circuit given, auto-PID according its nonlinear time-varying characteristics. simulation example verifies that valve has performance, which provides reference for design sharing system farm.