Comparative Analysis of Current Control Techniques to Support Virtual Inertia Applications
Comparative Analysis of Current Control Techniques to Support Virtual Inertia Applications
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DOI：
10.3390/app8122695
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发表时间：
2018-12
期刊：
影响因子：
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通讯作者：
Ujjwol Tamrakar;D. Shrestha;Naresh Malla;Z. Ni;T. Hansen;Indraman Tamrakar;R. Tonkoski
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文献类型：
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作者：
Ujjwol Tamrakar;D. Shrestha;Naresh Malla;Z. Ni;T. Hansen;Indraman Tamrakar;R. Tonkoski
向逆变器主导的电力系统的快速过渡降低了现代电力系统的惯性响应能力。作为一种解决方案，逆变器配备了控制策略，可以通过基于频率变化与电网交换功率来模拟惯性。本文讨论了各种电流控制技术在这些系统中的应用，被称为虚拟惯性系统。首先介绍了一些经典的控制技术，如比例积分，比例谐振，滞环控制，其次是基于模型预测和机器学习的两个更先进的控制技术的设计和讨论，分别。基于MATLAB/Simulink的仿真进行，并提出了比较这些控制技术的谐波性能，开关频率和瞬态响应的结果。
The rapid transition towards an inverter-dominated power system has reduced the inertial response capability of modern power systems. As a solution, inverters are equipped with control strategies, which can emulate inertia by exchanging power with the grid based on frequency changes. This paper discusses the various current control techniques for application in these systems, known as virtual inertia systems. Some classic control techniques like the proportional-integral, the proportional-resonant, and the hysteresis control are presented first, followed by the design and discussion of two more advanced control techniques based on model prediction and machine learning, respectively. MATLAB/Simulink-based simulations are performed, and results are presented to compare these control techniques in terms of harmonic performance, switching frequency, and transient response.