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首页> 外文会议>IEEE Conference on Industrial Electronics and Applications >Study on grid feed forward strategy under Unbalanced Grid Condition
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Study on grid feed forward strategy under Unbalanced Grid Condition

机译：不平衡电网条件下电网前馈策略研究

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In the case of unbalanced power grid, the disturbance of the power grid is introduced into the feed forward accurately, thus, the output feed-forward part of the inverter is in perfect agreement with the unbalanced power grid, in order to achieve good and effective control of the current of the converter in the dynamic change of the power grid. Due to the filtering delay of voltage sampling circuit, in the case of unbalanced power grid, phase compensation is also required for the delay of the negative sequence component, to ensure that the feedforward part of the grid is correct. The feed-forward control strategy of power grid under unbalanced and balanced power grid is simulated. The results show that the scheme can optimize the feed-forward component of the power grid and control the current of the converter effectively.
机译：在电网不平衡的情况下，将电网干扰准确地引入到前馈中，使逆变器的输出前馈部分与不平衡电网完全吻合，以达到良好而有效的效果。在电网动态变化中控制转换器的电流。由于电压采样电路的滤波延迟，在电网不平衡的情况下，还需要对负序分量的延迟进行相位补偿，以确保电网的前馈部分正确。对不平衡和平衡电网下的电网前馈控制策略进行了仿真。结果表明，该方案可以优化电网的前馈分量，并有效地控制变流器的电流。

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