此外，为了消除电网电压畸变或扰动对逆变器输出电流的影响，系统中引入了电网电压前馈解耦控制，改善了系统输出电流的质量。
Besides, in order to eliminate the effect of grid voltage distortion or disturbance on output current, decoupling control is employed to further improve the quality of output current.
前馈信号同时包含了电网电压和负载的信息，通过快速调节交流侧进线电流，使得系统功率平衡得以维持。
Feedforward signal includes the information of both grid voltage and DC side load. Power balance between the input and output can be maintained by adjusting AC side currents.
电压前馈补偿可以抵消电网作用，使系统近似成为一个简单的无源跟随系统。
The feed-forward control of utility grid voltage counteracts the influence of utility grid. The system becomes a simple passive tracking system.
针对电网电压波动对有源滤波器的影响进行了详细的分析，提出了通过电网电压和输出电流前馈的方法对其扰动进行抑制。
The feed forward of network voltage and output current is proposed to decrease the impaction of voltage fluctuation on the performance of active power filter.
为消除电网这个外部输入对指令电流跟踪的影响，引入了电压前馈，并从理论上推导了前馈的具体关系式。
For remove the influence of the grid input on APF tracking the reference, introduces feed forward of grid voltage, and gives the concretely formula of the feed forward.
为消除电网这个外部输入对指令电流跟踪的影响，引入了电压前馈，并从理论上推导了前馈的具体关系式。
For remove the influence of the grid input on APF tracking the reference, introduces feed forward of grid voltage, and gives the concretely formula of the feed forward.
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