Abstract: In the case of multiple photovoltaic power sources in the microgrids, the power disturbance caused by the influence of light intensity and temperature on photovoltaic power generation can lead to significant deficiencies in traditional centralized single photovoltaic-storage-load control. This paper proposes a control method for photovoltaic-storage-load in microgrids with photovoltaic sources to resist power disturbances, which constructs a photovoltaic power source model for microgrids. In response to the intermittency, randomness, and variability of photovoltaic power output, the disturbance observation method in the maximum power point tracking algorithm is employed to dynamically adjust its operating point. For energy storage devices, the charging and discharging power is adjusted based on their state of charge and the power demand of the microgrid, achieving power disturbance control. Under the premise of stable power control, a multi-agent consensus algorithm is used for coordinated control, treating photovoltaic power sources, energy storage devices, and loads as independent agents. By iteratively updating the state variables of each agent to make the converge to a conststant state, thus obtaining power reference values for each component and achieving anti-power disturbance control for photovoltaic power sources, energy storage devices, and loads in microgrids. Experimental results show that this method can effectively coordinate power distribution. The power of the photovoltaic source fluctuates around 100 kW, reaching a higher peak near 80 min, with a relatively stable frequency change rate, verifying its superiority in stable control of microgrids.
Key words: photovoltaic power source; microgrid; energy storage device; load demand; disturbance control; multi-agent consensus algorithm
參考文獻
[1] 侯順祥，張雪雨.面向多目標的低碳建筑光儲直柔供電系統能量協調控制策略[J].科技與創新，2025(1)：15-18.
[2] 王守相，何汝訓，張春雨，等. 基于 FPGA 實時仿真的光儲獨立直流微電網協調控制策略[J] . 電力建設，2023，44(4) ：94-102.
[3] 李曉慶，張培超，祝煒昊，等. 基于靈敏度的光儲直流配電網電壓/網損自適應優化協調控制[J]. 電力建設，2024，45(7) ：88-99.
[4] 李風洲，李永富. 低壓配電網中分布式光儲系統的電壓協調控制策略[J]. 科學技術創新，2024(1) ：89-92.
[5] 吳青峰，王毅，于少娟，等. 計及電池儲能單元時間約束的微電網儲荷協調控制方案[J] . 太陽能學報，2023，44(12) ：453-462.
[6] 張晶，吳澤志，陸岫昶，等. 考慮直流電力彈簧的“光儲直柔”系統協調控制策略研究[J] . 供用電，2023，40(7) ：82-92.
[7] RAJESH P, SHAJIN F H, UMASANKAR L.A novel control scheme for PV/WT/FC/battery to power quality enhancement in micro grid system:A hybrid technique[J].Energy Sources， Part A:Recovery，Utilization， and Environmental Effects， 2025，47(1) ：9126-9142.
[8] 李建林，趙文鼎，梁忠豪，等. 不同工況下光儲氫微網系統協調控制策略[J]. 太陽能學報，2024，45(7) ：10-19.
[9] 陳維榮，王小雨，韓瑩，等. 基于 RPC 的光儲接入牽引供電系統協調控制方法[J] . 西南交通大學學報，2024，59(1) ：1-10.
