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Impedance synthesis by inverter control for active loads in anti-islanding testbenches

机译:逆变器控制的阻抗合成,用于抗孤岛测试台中的有功负载

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This paper discusses the emulation of an active RLC load by means of an inverter. To this purpose, a suitable current control strategy is analyzed and developed. The limitations of this approach are explored, highlighting the requirements of the adopted regulator in order to avoid instability issues. The proposed analysis and model of the controlled system are verified by means of simulations and experimental tests on a 15kVA prototype. The model is able to predict the presence of the resonant peaks closed to the current control bandwidth, thus giving useful guidelines to minimize such undesired effects. Finally, as a test case, the emulation of a resonant RLC load to be used in anti-islanding tests is considered.
机译:本文讨论了通过逆变器仿真有源RLC负载的方法。为此目的,分析和开发了合适​​的电流控制策略。探索了这种方法的局限性,突出了所采用的监管机构的要求,以避免出现不稳定问题。通过对15kVA原型的仿真和实验测试,验证了所提出的受控系统的分析和模型。该模型能够预测接近电流控制带宽的谐振峰的存在,从而提供有用的指导,以最大程度地减少此类不良影响。最后,作为测试用例,考虑了要在防孤岛测试中使用的谐振RLC负载的仿真。

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