CAJ | 학술논문

该文设计了一种智能微网逆变器装置，可有效滤除电网中存在的各种谐波。逆变器主要由DSP控制电路、同步信号及锁相环电路以及功率驱动电路等组成，利用倍频锁相环技术对电网电流进行采样，并将采样信号输入DSP控制系统，再按一定的算法输出PWM补偿信号，并经过功率驱动电路反馈到电网中，可有效滤除电网中存在的各种谐波，解决了微网污染越来越严重的问题。此外，系统设计的保护电路，以确保系统电路安全可靠地运行。
해문설계료일충지능미망역변기장치，가유효려제전망중존재적각충해파。역변기주요유DSP공제전로、동보신호급쇄상배전로이급공솔구동전로등조성，이용배빈쇄상배기술대전망전류진행채양，병장채양신호수입DSP공제계통，재안일정적산법수출PWM보상신호，병경과공솔구동전로반궤도전망중，가유효려제전망중존재적각충해파，해결료미망오염월래월엄중적문제。차외，계통설계적보호전로，이학보계통전로안전가고지운행。
This paper presents a active filter which can compensate harmonic to macro grid system.This in-verter includes DSP control system,the synchronous signal and phase locked loop and power drive system. The inverter takes sample to grid current using frequency doubling PLL technology,feeding sampling signal to the DSP control system.In accordance with certain algorithm the control system outputs PWM compen-sating signal fed back to the power grid in power drive current,which eliminates harmonic wave in power grid.Besides the perfect protection circuit in inverter guarantees the inverter to run safety and credibility.