电源学报

考虑分布式电源出力不确定的逆变器功率分配

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么钟然 , 孙丽颖

电源学报 | 电力电子化电力系统 2026,24(4): 251-259

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电源学报 |电力电子化电力系统 2026 , 24 (4) : 251 -259

考虑分布式电源出力不确定的逆变器功率分配

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么钟然, 孙丽颖

作者信息

辽宁工业大学电气工程学院，锦州　121001

通讯作者:

孙丽颖（1972—　），女，通信作者，博士，教授。研究方向：新能源发电技术及其应用。E-mail：lgsunliying@163.com。

作者简介:

么钟然（1996—　），男，硕士研究生。研究方向：新能源发电技术及其应用，E-mail：15042736391@163.com。

Power Sharing of Inverters Considering Uncertain Output from Distributed Generation

Zhongran YAO, Liying SUN

Affiliations

College of Electrical Engineering, Liaoning University of Technology, Jinzhou 121001, China

出版时间: 2026-04-30 doi: 10.13234/j.issn.2095-2805.2026.4.251

文章导航

摘要

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微电网在孤岛时采用下垂控制，逆变器按分布式电源容量比例分配负荷功率，防止分布式电源过载、轻载及功率环流的产生。然而，逆变器的功率分配效果不仅与线路阻抗有关，还受分布式电源实际容量变化的影响。针对此问题，提出1种考虑分布式电源出力随机变化的改进下垂控制策略。该策略采用双层控制：外层控制在额定状态下消除线路阻抗的影响，当运行条件改变时，根据两级式逆变器直流母线电压变化，得到分布式电源的容量变化比例，形成非额定状态下的功率和电压参考值；内层采用改进下垂控制，通过调整下垂控制系数使逆变器工作在电压参考值下。最后调节逆变器出力，保证功率平衡。通过仿真，验证了该策略的正确性和可行性。

关键词

微电网 / 随机性 / 功率分配 / 下垂控制

Abstract

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The islanded microgrid adopts droop control to make inverters share load power according to the capacity proportion of distributed generation (DG), so as to prevent the DG from overload, light load, or generating power circulation. However, the power sharing effect of inverters is related to both the line impedance and the changes in the actual capacity of DG. To solve this problem, an improved droop control strategy considering the randomly changing output from DG is proposed. This strategy adopts two-layer control, in which the outer-layer control eliminates the influence of line impedance in a rated working state. Under changes in the operation condition, the proportion of changed capacity of DG is obtained according to the changes in the voltage of DC bus in a two-stage inverter, and the reference values of power and voltage in a non-rated working state are formulated. In the inner-layer, an improved droop control is adopted to adjust the coefficient of droop control to make the inverters work under the reference value of voltage. Finally, the output from inverters is adjusted to ensure power balance. Simulation results verify the correctness and feasibility of the proposed strategy.

Key words

Microgrid / randomness / power sharing / droop control

引用本文

么钟然, 孙丽颖. 考虑分布式电源出力不确定的逆变器功率分配. 电源学报, 2026 , 24 (4) : 251 -259 . DOI: 10.13234/j.issn.2095-2805.2026.4.251

Zhongran YAO, Liying SUN. Power Sharing of Inverters Considering Uncertain Output from Distributed Generation[J]. Journal of Power Supply, 2026 , 24 (4) : 251 -259 . DOI: 10.13234/j.issn.2095-2805.2026.4.251

基金

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国家自然科学基金资助项目(62273170)
辽宁省教育厅重点攻关资助项目(JZL201915401)

参考文献

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参考文献引证文献

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2026年第24卷第4期

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文章信息

doi: 10.13234/j.issn.2095-2805.2026.4.251

接收时间：2023-04-26
首发时间：2026-10-29
出版时间：2026-04-30

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出版历史

收稿日期：2023-04-26
修回日期：2023-09-04
录用日期：2023-12-13

基金

National Natural Science Foundation of China(62273170)

国家自然科学基金资助项目(62273170)

Key Project of Educational Department of Liaoning Province(JZL201915401)

辽宁省教育厅重点攻关资助项目(JZL201915401)

作者信息

辽宁工业大学电气工程学院，锦州　121001

通讯作者:

孙丽颖（1972—　），女，通信作者，博士，教授。研究方向：新能源发电技术及其应用。E-mail：lgsunliying@163.com。

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https://castjournals.cast.org.cn/joweb/dyxb/CN/10.13234/j.issn.2095-2805.2026.4.251

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2种不同金属材料的力学参数

科 Family	属数 Number of genus	种数 Number of species	占总种数比例 Percentage of total species (%)	属 Genus	种数 Number of species	占总种数比例 Percentage of total species (%)
鹅膏菌科Amanitaceae	2	11	5.26	鹅膏菌属 Amanita	10	4.78
小菇科 Mycenaceae	2	12	5.74	丝盖伞属 Inocybe	5	2.39
多孔菌科 Polyporaceae	8	14	6.70	蜡蘑属 Laccaria	5	2.39
红菇科 Russulaceae	3	23	11.00	小皮伞属 Marasmius	6	2.87
				小菇属 Mycena	11	5.26
				光柄菇属 Pluteus	5	2.39
				红菇属 Russula	17	8.13
				栓菌属 Trametes	5	2.39

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