光伏并网变流器模糊自抗扰稳压控制策略

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关键词：光伏并网变流器；自抗扰控制；模糊聚类算法；双闭环控制；电压稳定性中图分类号：TM464 文献标志码：A 文章编号：2095-8188（2026）02-0033-10DOI： 10.16628/j. cnki.2095-8188.2026.02.005

Abstract：The busvoltage stabilityof photovoltaic grid-connected converters is critical tothesafeoperationof power systems.Aiming at the problems of slow responseand insuffcient immunityof photovoltaicgrid-connected convertersunder disturbancessuch as light and temperature，a fuzzyactive immunityvoltage stabilizationcontrol strategy is proposed.This strategy employsan extended state observer to estimate system disturbancesand actively compensate forthem，and combines the fuzzy clustering algorithm toachieve adaptive seting of control parameters. It integrates theofline learning offuzzyclustering withtheonline compensationof active disturbancecancelltion control.The doubleclosed-loop structureof thevoltage outer loop proportional integral（（PI）control and the current inner loop active disturbance rejectioncontrol（ADRC）is adopted to achieve precise and stable bus voltage.The simulation results show thatthebusvoltage fluctuation is controlled within8.3V，thegrid-connected current total harmonic distortion（THD）is 2.1% ，and the settling time is 1.5s . All indicatorsare significantlybetter thanthe traditional methods，providing an effctive guarantee for the stable operation of the photovoltaic system.

Key words： photovoltaic grid-connected converter；active disturbance rejection control； fuzzy clusteringalgorithm；doubleclosed-loopcontrol；voltagestability

0引言

随着全球环境问题的日益严峻与传统能源逐渐枯竭，以太阳能、风能为代表的可再生能源得到了飞速发展与广泛应用。（剩余10604字）