Suzhou Electric Appliance Research Institute
期刊號(hào): CN32-1800/TM| ISSN1007-3175

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弱慣性交流微電網(wǎng)群的分布式多目標(biāo)協(xié)同控制方法

來(lái)源:電工電氣發(fā)布時(shí)間:2023-07-01 10:01 瀏覽次數(shù):333

弱慣性交流微電網(wǎng)群的分布式多目標(biāo)協(xié)同控制方法

何志毅1,匡洪海1,于錫琪2,常宇瑞1,王凱1
(1 湖南工業(yè)大學(xué) 電氣與信息工程學(xué)院,湖南 株洲 412007;
2 國(guó)網(wǎng)湖南省電力有限公司株洲供電分公司,湖南 株洲 412000)
 
    摘 要:微電網(wǎng)群 (MGC) 集合了多個(gè)子網(wǎng)的電力資源,大量分布式電源 (DG) 的接入給系統(tǒng)的經(jīng)濟(jì)調(diào)度和功率均分帶來(lái)巨大挑戰(zhàn),也削弱了系統(tǒng)的慣性?;诜植际娇刂疲岢隽艘环N微電網(wǎng)群的多目標(biāo)協(xié)同控制,設(shè)計(jì)了三層協(xié)同控制架構(gòu)。在設(shè)備層,利用虛擬同步發(fā)電機(jī) (VSG) 模擬慣性;在子網(wǎng)層,利用功率一致性控制,增加了系統(tǒng)的阻尼,實(shí)現(xiàn)功率均分和振蕩抑制;在網(wǎng)群層,基于等微增率準(zhǔn)則,實(shí)現(xiàn)網(wǎng)群的經(jīng)濟(jì)優(yōu)化和頻率恢復(fù)。通過(guò)仿真實(shí)驗(yàn),設(shè)計(jì)了沖擊負(fù)荷接入切除、通信延時(shí)以及功率限制等算例,證實(shí)了所提控制算法的有效性。
    關(guān)鍵詞: 微電網(wǎng)群;虛擬同步發(fā)電機(jī);分布式控制;頻率恢復(fù);功率分配
    中圖分類號(hào):TM711     文獻(xiàn)標(biāo)識(shí)碼:A     文章編號(hào):1007-3175(2023)06-0007-07
 
Distributed Multi-Objective Cooperative Control Method for
Weak-Inertia AC Microgrid Clusters
 
HE Zhi-yi1, KUANG Hong-hai1, YU Xi-qi2, CHANG Yu-rui1, WANG Kai1
(1 College of Electrical and Information Engineering, Hunan University of Technology, Zhuzhou 412007, China;
2 Zhuzhou Power Supply Branch of State Grid Hunan Electric Power Co.,Ltd, Zhuzhou 412000, China)
 
    Abstract: Microgrid Clusters (MGC) gather the power generation resources of multiple subnets, and the interconnection of a great number of Distributed Generators (DG) will bring large challenges to the economic dispatch and power sharing of the system and also weaken the system inertia. The paper, based on distributed control, proposes a multi-objective cooperative control for MGC and a three-layer cooperative control framework. On the equipment layer, the Virtual Synchronous Generator (VSG) is used to simulate inertia; on the subnet layer, power consistency control is adopted to increase the system damping, which realizes power sharing and oscillation suppression; on the MGC layer,economic optimization and frequency recovery of MGC are realized based on the equal incremental principle. Finally, numerical examples such as impact load access removal, communication delay and power limitation are designed through simulation experiments to verify the effectiveness of the proposed control algorithm.
    Key words: microgrid clusters; virtual synchronous generator; distributed control; frequency recovery; power distribution
 
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