为解决电除尘器脉冲电源存在的负载上脉冲拖尾、电容剩余电压积累、负载上电压振荡问题,在充电二极管两端反向并联了一个辅助开关。详细分析了电路的工作原理,给出了选取影响负载上脉冲波形的关键元器件参数的理论依据,仿真分析和低压试验验证了解决方案的正确性。脉冲电源的改进,有利于进一步提高除尘效率和能量利用率。

In order to overcome disadvantages of pulse generator for electrostatic precipitators (ESP), such as pulse stretching, residual voltage accumulation of capacitors and oscillating voltage of ESP, an appropriate solution with an auxiliary switch inversely connected to the charging diode in parallel is put forward. This article analyzes the principle of the pulse generator for ESP at length, and provides the theory of the selection of critical parameters. The simulation analysis and low-voltage experimental results confirm the validity of the solution. The improvement of pulse generator for ESP is conductive to further improve the collection efficiency and energy utilization.