KEYWORDS: Power grids, Control systems, Tunable filters, Transformers, Signal detection, Digital filtering, Design, Modulation, Quality control, Electronic components
A Unified Power Quality regulator (UPQC) can be used to regulate and control power quality issues that arise due to a high proportion of distributed renewable energy and power electronics.UPQC can manage power quality problems such as voltage fluctuations and harmonics caused by high proportion of new energy access and high proportion of power electronic equipment access. In this paper, the working principle and topological structure of the unified power quality control device are analyzed, and its key parameters are analyzed and designed. Secondly, the corresponding control strategy is proposed for the power quality compensation function of the parallel side and series side converters of the unified power quality regulation device.
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