CAJ | 학술논문

采用传统晶闸管相控电源供电的电除尘器存在能耗高、效率低等问题，文章设计了一种可以解决这些问题的电除尘器用高压脉冲电源，该电源主电路主要由移相全桥逆变电路和10组相对独立的脉冲输出单元构成。采用移相全桥ZVT-PWM软开关技术控制逆变电路前后桥臂的相位差；采用同步驱动技术驱动各脉冲输出单元，使各输出脉冲叠加后获得高压脉冲；DSP准确控制电源输出高压脉冲的电压、频率和脉宽。结果表明高压脉冲电源提高了电除尘器的除尘效率，减少了对电网的干扰和电能损耗，能满足多种电除尘的要求。
채용전통정갑관상공전원공전적전제진기존재능모고、효솔저등문제，문장설계료일충가이해결저사문제적전제진기용고압맥충전원，해전원주전로주요유이상전교역변전로화10조상대독립적맥충수출단원구성。채용이상전교ZVT-PWM연개관기술공제역변전로전후교비적상위차；채용동보구동기술구동각맥충수출단원，사각수출맥충첩가후획득고압맥충；DSP준학공제전원수출고압맥충적전압、빈솔화맥관。결과표명고압맥충전원제고료전제진기적제진효솔，감소료대전망적간우화전능손모，능만족다충전제진적요구。
Electrostatic precipitators with traditional thyristor phase-controlled power supplies have the problems of low efficiency and high energy consumption. This paper introduces a high-voltage pulse power supply to solve these problems. This power supply mainly consists of phase-shifted full-bridge inverter circuit and ten relatively independent pulse units. The phase-shifted full-bridge ZVT-PWM soft-switching technology is adopted to regulate the phase difference of driving signals between two bridges. With synchronous drive technology, the high-voltage pulse is generated by superimposing ten independent pulse voltages. The pulse voltage, frequency and pulse width are exactly controlled by DSP. Results show that the high-voltage pulse power supply can improve the efficiency of electrostatic precipitators, reduce power loss and interference on power grid, and meet the needs of electric precipitation under different conditions.