| 引用本文: | 何红玉,韩蓓,徐晨博,张利军,李国杰,汪可友.交直流混合微电网一致性协调优化管理系统[J].电力自动化设备,2018,(8): |
| HE Hongyu,HAN Bei,XU Chenbo,ZHANG Lijun,LI Guojie,WANG Keyou.Optimal management system of hybrid AC/DC microgrid based on consensus protocols[J].Electric Power Automation Equipment,2018,(8): |
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| 摘要: |
| 考虑到分布式电源的高比例接入，交直流混合微电网的能量管理是分布式电源协调工作的必要手段。针对集中优化的鲁棒性和灵活性不足的缺点，根据交流子系统与直流子系统混联的特点，提出基于一致性算法的协调优化管理系统。该系统以可控单元的成本最低为优化目标，设置微增率为一致性变量，基于“一致性+调整项”算法分配可控单元的功率。下垂控制基于本地信息调整参数，维持系统的稳定性。典型交直流微电网算例仿真结果表明，所提交直流混合微电网一致性优化管理系统能经济分配功率，快速抑制电压与频率波动，具有良好的暂态与稳态性能。 |
| 关键词: 交直流混合微电网 优化管理 一致性算法 下垂控制 |
| DOI：10.16081/j.issn.1006-6047.2018.08.020 |
| 分类号:TM761 |
| 基金项目:国家自然科学基金资助项目(51407116)；国家高技术研究发展计划(863计划)项目(2015AA050102)；国网浙江省电力公司科技项目(5211JY16000X) |
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| Optimal management system of hybrid AC/DC microgrid based on consensus protocols |
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HE Hongyu1, HAN Bei1, XU Chenbo2, ZHANG Lijun2, LI Guojie1, WANG Keyou1
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1.Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education, Shanghai Jiao Tong University, Shanghai 200240, China;2.State Grid Zhejiang Electric Power Corporation Research Institute of Economy and Technology, Hangzhou 310000, China
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| Abstract: |
| Considering the high penetration of distributed generations, the power management of hybrid AC/DC microgrid is necessary for coordinative operation of distributed generations. Aiming at the insufficient robustness and flexibility of centralized optimization, an optimal management system based on the consensus protocol is proposed according to the characteristics of hybrid AC/DC microgrid, which takes the minimum cost of controllable units as its objective, sets the incremental rates as the variables of consensus protocols, and allocates the power among controllable units based on “consensus + modulation” algorithm. The droop control adjusts the parameters based on the local information to maintain the system stability. The simulative results of a typical hybrid AC/DC microgrid show that the proposed system, with good transient and stable performance, can allocate power economically and depress voltage and frequency fluctuations quickly. |
| Key words: hybrid AC/DC microgrid optimal management consensus algorithm droop control |
