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首页> 外文期刊>IEEE Transactions on Aerospace and Electronic Systems >Unified voltage and pitch angle controller for wind-driven induction generator system
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Unified voltage and pitch angle controller for wind-driven induction generator system

机译：风力感应发电机系统的统一电压和俯仰角控制器

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摘要

A unified voltage and pitch angle controller (UVPC) for a wind-driven induction generator system is presented to reach effective voltage control and to stabilize generator speed and system frequency. The proposed UVPC comprises a linear optimal controller (LOC), a supplementary voltage regulator (SVR), and a supplementary pitch angle controller (SPC). An AC voltage regulator and a DC voltage regulator are designed in the SVR to generate the desired voltage magnitude and phase angle for the voltage-sourced inverter (VSI). On the other hand, the SPC is designed based on fuzzy logic inference rules in order to generate the desired pitch angle command for the variable blade pitch such that the mechanical power can be controlled in a very efficient manner. When the system is operated in the islanding condition, an approach based on the concept of relative rotating speed has been developed for the measurement of system frequency deviation. Simulation and experimental results reveal that both bus voltage and mechanical power can be effectively controlled by the proposed UVPC for the wind energy conversion system (WECS) either connected with or disconnected from the power grid when there is sufficient wind energy.
机译：提出了一种用于风力感应发电机系统的统一电压和俯仰角控制器（UVPC），以实现有效的电压控制并稳定发电机速度和系统频率。提出的UVPC包括线性最佳控制器（LOC），辅助电压调节器（SVR）和辅助俯仰角控制器（SPC）。 SVR中设计了一个交流稳压器和一个直流稳压器，以为电压源逆变器（VSI）生成所需的电压幅度和相角。另一方面，基于模糊逻辑推理规则设计SPC，以便为可变叶片桨距生成所需的桨距角命令，从而可以以非常有效的方式控制机械功率。当系统在孤岛状态下运行时，已经开发了一种基于相对转速概念的方法来测量系统频率偏差。仿真和实验结果表明，当有足够的风能时，建议的UVPC可有效地控制与电网连接或断开的风能转换系统（WECS）的总线电压和机械功率。

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