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首页> 外文期刊>Renewable Power Generation, IET >Reactive power control for voltage stability of standalone hybrid wind–diesel power system based on functional model predictive control
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Reactive power control for voltage stability of standalone hybrid wind–diesel power system based on functional model predictive control

机译：基于功能模型预测控制的混合动力风电系统无功功率稳定控制

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摘要

This study investigates the application of the model predictive control (MPC) approach for voltage stability of an isolated hybrid wind-diesel generation system based on reactive power control. This scheme consists of a synchronous generator (SG) for a diesel-generator (DG) system and an induction generator (IG) for a wind energy conversion system. A static voltage automatic regulator (VAR) compensator (SVC) is connected at terminal bus to stabilise load voltage through compensating of reactive power. Two control paths are used to stabilise load bus voltage based on MPC. The first one by controlling the total reactive power of the system that by controlling the SVC firing angle and hence the load voltage. The second control path by controlling the SG excitation voltage and hence the load bus terminal voltage. The MPC is used to determine the optimal control actions including system constraints. To mitigate calculations effort and to reduce numerical problems, especially in large prediction horizon, an exponentially weighted functional MPC (FMPC) is applied. The proposed controller has been tested through step change in load reactive power plus step increase in input wind power. Also, the performance of the system with FMPC was compared with the classical MPC. Moreover, this scheme is tested against the parameters variations.
机译：这项研究调查了模型预测控制（MPC）方法在基于无功功率控制的隔离式混合风力柴油发电系统的电压稳定性中的应用。该方案由用于柴油发电机（DG）系统的同步发电机（SG）和用于风能转换系统的感应发电机（IG）组成。静态电压自动调节器（VAR）补偿器（SVC）连接在端子总线上，以通过补偿无功功率来稳定负载电压。两个控制路径用于基于MPC稳定负载总线电压。第一个是通过控制系统的总无功功率，即通过控制SVC触发角，从而控制负载电压。第二控制路径通过控制SG激励电压以及负载总线端子电压来控制。 MPC用于确定包括系统约束在内的最佳控制措施。为了减轻计算量并减少数值问题，尤其是在较大的预测范围内，应用了指数加权功能MPC（FMPC）。所建议的控制器已通过负载无功功率的阶跃变化加上输入风力的阶跃增加进行了测试。此外，将具有FMPC的系统的性能与经典MPC进行了比较。此外，针对参数变化对该方案进行了测试。

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