电力系统及其自动化学报2017，Vol.29Issue(9)：114-121,8.DOI:10.3969/j.issn.1003-8930.2017.09.019
交直流混合微网变流器多模式协调控制策略
Multi-mode Coordination Control Strategy for AC/DC Hybrid Micro-grid Converter
刘桂英 1桂永光 1粟时平 1明志勇 2张捷 3邓宇恩1
作者信息
- 1. 智能电网运行与控制湖南省重点实验室,长沙理工大学,长沙 410004
- 2. 贵州电网公司铜仁供电局,铜仁 554300
- 3. 国网江西省电力公司九江供电分公司,九江 332000
- 折叠
摘要
Abstract
Considering that the AC/DC hybrid micro-grid contains different types of micro-sources,grid-connected in?terface control models are established for each micro-source. The droop control curve is further modified for a bi-direc?tional converter,i.e.,when the conversion power of the converter is very small,it is still kept in a shutdown mode, which reduces the harmonics brought by the unnecessary action of power electronic devices. Based on the analysis of dif?ferent operation modes of micro-source converter,a coordination control strategy based on DC bus voltage and micro-grid energy management is proposed. By considering factors such as DC bus voltage deviation,micro-grid power short?age and battery's state of charge,the proposed strategy can achieve the power balance in AC/DC micro-grid,and im?prove the stability and controllability of the system,which is suitable for different operation modes of AC/DC micro-grid. The effectiveness and feasibility of the proposed strategy are verified by simulation results.关键词
混合微网/变流器/能量管理/协调控制Key words
hybrid micro-grid/converter/energy management/coordination control分类
信息技术与安全科学引用本文复制引用
刘桂英,桂永光,粟时平,明志勇,张捷,邓宇恩..交直流混合微网变流器多模式协调控制策略[J].电力系统及其自动化学报,2017,29(9):114-121,8.
