The fixed switching frequency current tracing control is adopted in high frequency bridge, so the control circuit is simple.
高频桥采用恒频电流跟踪控制，控制电路简单。
Based on a new digital PLL, a new current tracing control strategy for a grid-connected PV system was proposed to control the amplitude and phase of the inverter current.
针对光伏并网发电系统，基于数字锁相环，研究了一种实现系统并网电流幅值、相位跟踪控制的新方法。
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