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首页> 外文期刊>Journal of Power and Energy Engineering >PID-Type Fuzzy Controller for Grid-Supporting Inverter of Battery in Embedded Small Variable Speed Wind Turbine
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PID-Type Fuzzy Controller for Grid-Supporting Inverter of Battery in Embedded Small Variable Speed Wind Turbine

机译：嵌入式小型变速风力发电机蓄电池并网逆变器的PID型模糊控制器

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摘要

Frequency and voltage of embedded variable speed wind turbine (VSWT) driving a permanent magnet synchronous generator (PMSG) is strongly affected by wind speed fluctuations. In practice, power imbalance between supply and demand is also common, especially when VSWT-PMSG is connected to a weak micro grid (MG). If load demand fluctuations become high, isolated MG may be unable to stabilize the frequency and voltage so that battery storage needs to be installed into the MG to adjust energy supply and demand. To allow flexible control of active and reactive power flow from/to battery storage, grid-supporting inverters are used. For a system that contains highly nonlinear components, the use of conventional linear proportional-integral-derivative (PID) controllers may cause system performance deterioration. Additionally, these controllers show slow, oscillating responses, and complex equations are required to obtain optimum responses in other controllers. To cope with these limitations, this paper proposes PID-type fuzzy controller (PIDfc) design to control grid-supporting inverter of battery. To ensure safe battery operating limits, we also propose a new controller scheme called intelligent battery protection (IBP). This IBP is integrated into PIDfc. Several simulation tests are performed to verify the scheme’s effectiveness. The results show that the proposed PIDfc controller exhibits improved performance and acceptable responses, and can be used instead of conventional controllers.
机译：驱动永磁同步发电机（PMSG）的嵌入式变速风力涡轮机（VSWT）的频率和电压受风速波动的强烈影响。实际上，供需之间的功率失衡也很普遍，尤其是当VSWT-PMSG连接到弱微电网（MG）时。如果负载需求波动变得很高，则隔离的MG可能无法稳定频率和电压，因此需要在MG中安装电池存储装置以调整能量的供需。为了灵活控制进出电池的有功和无功功率，使用了支持电网的逆变器。对于包含高度非线性成分的系统，使用常规的线性比例积分微分（PID）控制器可能会导致系统性能下降。此外，这些控制器显示出缓慢的振荡响应，并且需要复杂的方程式才能在其他控制器中获得最佳响应。为了克服这些局限性，本文提出了一种PID型模糊控制器（PIDfc）设计来控制电池的并网逆变器。为了确保安全的电池运行极限，我们还提出了一种称为智能电池保护（IBP）的新控制器方案。该IBP已集成到PIDfc中。进行了几次模拟测试，以验证该方案的有效性。结果表明，所提出的PIDfc控制器具有改进的性能和可接受的响应，并且可以代替常规控制器使用。

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