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Instantaneous Symmetrical Component Theory Based Voltage and Frequency Controller for Isolated Small Hydropower Generation

机译：基于瞬时对称分量理论的隔离小水轮发电机组电压和频率控制器

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This article deals with the design and implementation of an instantaneous sequence component theory based integrated voltage and frequency controller for an isolated asynchronous generator, which is used in constant power small hydropower generation for feeding three-phase four-wire consumer loads. The proposed integrated voltage and frequency controller is used to control the voltage and frequency of an isolated asynchronous generator in the integrated manner. This integrated voltage and frequency controller is realized using a zigzag/star transformer and a three-leg insulated-gate bipolar transistor based current-controlled voltage source converter, a capacitor, a chopper switch, and an auxiliary load on its DC bus. The proposed integrated voltage and frequency controller with an isolated generating system is modeled and simulated in MATLAB along with Simulink and simpower system (SPS) toolboxes (The MathWorks, Natick, Massachusetts, USA). The simulated results are validated with test results of a developed prototype using a 3.7-kW, 230-V asynchronous generator to demonstrate its performance for feeding three-phase four-wire consumer loads with the neutral current compensation.
机译：本文讨论了基于瞬时序列成分理论的隔离式异步发电机集成电压和频率控制器的设计和实现，该控制器用于恒功率小型水力发电，用于为三相四线用户负载供电。提出的集成电压和频率控制器用于以集成方式控制隔离式异步发电机的电压和频率。这种集成的电压和频率控制器通过使用Z字形/星形变压器和基于三脚绝缘栅双极晶体管的电流控制电压源转换器，电容器，斩波器开关以及其直流总线上的辅助负载来实现。在MATLAB中，连同Simulink和simpower系统（SPS）工具箱（美国马萨诸塞州内蒂克的MathWorks公司）一起对所提出的带有隔离发电系统的集成电压和频率控制器进行了建模和仿真。仿真结果已通过使用3.7 kW，230 V异步发电机的已开发原型的测试结果进行了验证，以证明其通过中性电流补偿为三相四线用户负载供电的性能。

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