CAJ | 학술논문

自生电源是智能低压断路器控制器设计中的关键技术之一。该文设计了一种用于智能低压塑壳断路器的自生电源，应用电流互感器从被保护线路感应出电流，经整流后给储能电容充电，建立电源电压，采用脉宽调制技术控制输出电压。为保证自生电源质量，采取一种变参数PID控制策略实现稳压，同时通过前馈调节补偿输入电流的扰动。实验表明，该自生电源稳定度高，抗干扰能力强。
자생전원시지능저압단로기공제기설계중적관건기술지일。해문설계료일충용우지능저압소각단로기적자생전원，응용전류호감기종피보호선로감응출전류，경정류후급저능전용충전，건립전원전압，채용맥관조제기술공제수출전압。위보증자생전원질량，채취일충변삼수PID공제책략실현은압，동시통과전궤조절보상수입전류적우동。실험표명，해자생전원은정도고，항간우능력강。
Self-produced power supply is one of the key technologies in the development of intelligent controller for low-voltage circuit breaker .This paper designs a self-produced power supply for intelligent low-voltage molded case circuit breaker .Secondary current generated by the current transformer is rectified and input into storage capacitor to implement the power supply , pulse width modulation technology is used to control the output voltage .To ensure its quality , the power supply stabilizes the output in a PID control strategy with variable parameters , compensates the disturbance of input through feedforward control channel . Experiment results confirm that the power supply has high stability and strong anti-disturbance capability .