| 微网孤岛运行的分散自趋优控制策略 |
| |
| 引用本文： | 赵睿,章雷其,辛焕海,汪震,杨欢,韦巍.微网孤岛运行的分散自趋优控制策略[J].电力系统自动化,2015,39(21):30-36. |
| |
| 作者姓名： | 赵睿 章雷其 辛焕海 汪震 杨欢 韦巍 |
| |
| 作者单位： | 浙江大学电气工程学院, 浙江省杭州市 310027; 浙江省海洋可再生能源电气装备与系统技术研究重点实验室, 浙江省杭州市 310027,浙江大学电气工程学院, 浙江省杭州市 310027; 浙江省海洋可再生能源电气装备与系统技术研究重点实验室, 浙江省杭州市 310027,浙江大学电气工程学院, 浙江省杭州市 310027; 浙江省海洋可再生能源电气装备与系统技术研究重点实验室, 浙江省杭州市 310027,浙江大学电气工程学院, 浙江省杭州市 310027; 浙江省海洋可再生能源电气装备与系统技术研究重点实验室, 浙江省杭州市 310027,浙江大学电气工程学院, 浙江省杭州市 310027; 浙江省海洋可再生能源电气装备与系统技术研究重点实验室, 浙江省杭州市 310027,浙江大学电气工程学院, 浙江省杭州市 310027; 浙江省海洋可再生能源电气装备与系统技术研究重点实验室, 浙江省杭州市 310027 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)资助项目(2015AA050202);国家自然科学基金资助项目(51177146);浙江大学电气工程学院青年基金项目“自趋优海岛微电网半实物仿真示范平台” |
| |
| 摘 要： | 提出了一种适用于微网孤岛运行的分散自趋优控制策略,该策略无需微网中央控制器和通信系统即可实现系统的三次分层控制,包括分散一次控制、分散二次控制和分散三次控制。其中,一次控制沿用传统的线性下垂控制策略,保持了微网良好的线性动态特性;二次控制仅借助各台分布式发电机的输出端频率信息即可直接参与系统调频,使微网的频率能够维持在允许的范围内;三次控制采用考虑发电机成本的非线性下垂控制策略,使各台分布式发电机遵循等微增率准则,实现微网的优化运行。此外,通过设计不同时间常数的低通滤波器,使三次分层控制实现了动态解耦,使控制策略既能满足微网静态特性的要求,又具有良好的动态特性。最后,由仿真算例验证了所提控制策略的有效性。
|
| 关 键 词： | 微网(微电网) 分散 自趋优 分层控制 成本微增率 |
| 收稿时间： | 1/7/2015 12:00:00 AM |
| 修稿时间： | 8/5/2015 12:00:00 AM |
A Decentralized Self-optimizing Control Strategy for Islanded Microgrid |
| |
| ZHAO Rui,ZHANG Leiqi,XIN Huanhai,WANG Zhen,YANG Huan and WEI Wei.A Decentralized Self-optimizing Control Strategy for Islanded Microgrid[J].Automation of Electric Power Systems,2015,39(21):30-36. |
| |
| Authors: | ZHAO Rui ZHANG Leiqi XIN Huanhai WANG Zhen YANG Huan and WEI Wei |
| |
| Affiliation: | College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Zhejiang Key Laboratory of Ocean Renewable Energy Equipment and System Technology, Hangzhou 310027, China,College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Zhejiang Key Laboratory of Ocean Renewable Energy Equipment and System Technology, Hangzhou 310027, China,College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Zhejiang Key Laboratory of Ocean Renewable Energy Equipment and System Technology, Hangzhou 310027, China,College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Zhejiang Key Laboratory of Ocean Renewable Energy Equipment and System Technology, Hangzhou 310027, China,College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Zhejiang Key Laboratory of Ocean Renewable Energy Equipment and System Technology, Hangzhou 310027, China and College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China; Zhejiang Key Laboratory of Ocean Renewable Energy Equipment and System Technology, Hangzhou 310027, China |
| |
| Abstract: | A decentralized self-optimizing control strategy for islanded microgrid is proposed, which is capable of realizing three-level hierarchical control of the system without microgrid centralized controller and communication system, that is the decentralized primary control (DPC), the decentralized secondary control (DSC) and the decentralized tertiary control (DTC). DPC uses the traditional linear droop control strategy to maintain microgrid the good linear dynamic performance, DSC makes each distributed generator (DG) participate in system frequency regulation directly only by their output frequency information so that the microgrid frequency can be restored within the permitted range, and DTC uses the nonlinear droop control strategy considering the generator cost to make each DG meet the equal incremental principle in order to realize the optimal operation of microgrid. In addition, the low-pass filters with different time constant are designed to decouple the microgrid dynamically to meet the requirements for both static and dynamic characteristic of microgrid. In the end, the effectiveness of the proposed control strategy is verified by a simulation example. This work is supported by National High Technology Research and Development Program of China (863 Program) (No. 2015AA050202) and National Natural Science Foundation of China (No. 51177146). |
| |
| Keywords: | microgrid decentralization self-optimizing hierarchical control cost increment value |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《电力系统自动化》浏览原始摘要信息 |
|
点击此处可从《电力系统自动化》下载全文 |
|
