Abstract
While electronic technology has facilitated production and daily life, it has also brought certain issues, with leakage current being one of the most typical problems. Excessive leakage current can damage electrical equipment and even threaten the safety of personnel. Achieving maximum electrical safety has become a research hotspot in recent years. This paper, based on photovoltaic power generation systems, aims to improve the dynamic response capability of photovoltaic inverters through the establishment of predictive systems. The paper first analyzes the working principle and existing problems of model prediction, then lists the principles of three optimization schemes, including the introduction of virtual voltage, the two-step prediction method, and the recursive least squares method. It also analyzes the advantages and disadvantages of these three schemes and finally proposes the future development direction of using model prediction to suppress leakage current issues.
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