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中文摘要：
传统的双馈感应发电机直接功率控制策略大多采用PI控制，难以解决快速性和超调性的矛盾。提出基于非线性PID的功率控制，在直接功率控制策略基础上引入跟踪微分器，以非线性组合代替传统PI。理论分析仿真与实验表明对于一个2．2kW的DFIG系统，基于非线性PID的功率控制能够实现快速无超调控制，提高系统的鲁棒性，具有更好的动态性能。
英文摘要：
The direct power control strategy of traditional doubly fed induction generator （DFIG） mainly applies the proportional integral （PI） control, which is difficult to solve the contradiction between rapidity and overshoot. The power control based on the nonlinear PID was proposed, and tracking-differentiator based on the direct power control strategy and the nonlinear combination instead of traditional PI were introduced. The theoretical analysis simulation and experimental re- suits illustrate for a 2.2 kW DFIG system, the power control based on the nonlinear PID can achieve fast control without o- vershoot, improve the robustness of the system and have a better dynamic performance.
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