| 引用本文: | 杨海柱,岳刚伟,康乐.微网分段动态自适应下垂控制策略研究[J].电力系统保护与控制,2019,47(8):80-87.[点击复制] |
| YANG Haizhu,YUE Gangwei,KANG Le.Research on piecewise dynamic adaptive droop control strategy for microgrid[J].Power System Protection and Control,2019,47(8):80-87[点击复制] |
|
| 摘要: |
| 微电网采用传统下垂控制时，存在着动态调节速度慢、微源功率分配不均、频率电压无法稳定等诸多弊端。为解决以上问题，提出一种分段动态自适应下垂控制策略。通过分段下垂控制增大下垂系数，以提升系统动态响应速度。通过动态下垂控制调节下垂系数，以改善功率分配效果。通过自适应下垂控制平移下垂曲线，以维持频率和电压稳定。对上述控制策略分别进行了仿真和实验，结果验证了分段下垂自适应下垂控制策略的快速性、精确性和稳定性。 |
| 关键词: 微电网 下垂控制 响应速度 功率均分 系统稳定 |
| DOI：10.7667/PSPC180543 |
| 投稿时间：2018-05-09修订日期：2018-05-30 |
| 基金项目:国家自然科学基金项目资助(U1504623) |
|
| Research on piecewise dynamic adaptive droop control strategy for microgrid |
| YANG Haizhu,YUE Gangwei,KANG Le |
| (School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454000, China) |
| Abstract: |
| When traditional droop control is used in microgrid, there are many disadvantages, such as slow speed of dynamic regulation, uneven distribution of micro source power, unstable frequency and voltage, etc. To solve the above problems, a segmented dynamic adaptive droop control strategy is proposed. The droop coefficient is increased by piecewise droop control to improve the dynamic response speed of the system. The droop coefficient is adjusted by dynamic droop control to improve the power distribution effect. Adaptive droop control moves the droop curve to maintain frequency and voltage stable. Simulation and experiments are carried out on the above control strategies. The results verify the rapidity, accuracy and stability of the improved droop control strategy. This work is supported by National Natural Science Foundation of China (No. U1504623). |
| Key words: microgrid droop control respond speed power distribution system stability |
