基于微網(wǎng)參與的配電網(wǎng)分區(qū)的研究
余磊1,陳庚2,周卓3
(1 華北電力大學(xué) 電氣與電子工程學(xué)院,北京 102206;2 太原理工大學(xué) 電氣與動力工程學(xué)院,山西 太原 030024;
3 遼寧大學(xué) 輕型產(chǎn)業(yè)學(xué)院,遼寧 沈陽 110036)
摘 要:隨著微網(wǎng)的不斷接入,其出力的隨機(jī)性與間歇性給配電網(wǎng)的電壓控制帶來了挑戰(zhàn)。提出了無功- 電壓靈敏度的概念,并形成了考慮微網(wǎng)無功出力對配電網(wǎng)節(jié)點(diǎn)電壓影響的微網(wǎng)無功控制空間矩陣,根據(jù)得到的微網(wǎng)無功控制空間矩陣?yán)脤哟尉垲惙治龅姆椒▽ε潆娋W(wǎng)進(jìn)行分區(qū),并以IEEE 33節(jié)點(diǎn)系統(tǒng)為例,基于MATLAB Simulink軟件對微電網(wǎng)并網(wǎng)下的無功控制能力進(jìn)行仿真,重點(diǎn)討論負(fù)荷突增和突減兩種情況下微網(wǎng)對其所在區(qū)域內(nèi)的節(jié)點(diǎn)電壓調(diào)整過程,驗證了無功控制分區(qū)的合理性。
關(guān)鍵詞:微網(wǎng);無功控制空間矩陣;層次聚類;配電網(wǎng)
中圖分類號:TM727 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2020)07-0009-04
Research on Distribution Network Partitioning Based on Micronetwork Participation
YU Lei1, CHEN Geng2, ZHOU Zhuo3
(1 School of Electrical and Electronic Engineering, North China Electric Power University ,Beijing 102206, China;
2 College of Electrical and Power Engineering, Taiyuan University of Technology, Taiyuan 030024, China;
3 Light Industry College of Liaoning University, Shenyang 11 0036, China)
Abstract: With the continuous access of the microgrid, the randomness and intermittence of its output have brought challenges to the voltage control of the distribution network. The concept of reactive power-voltage sensitivity is proposed, and a reactive power control space matrix of microgrid is considered considering the effect of microgrid reactive power output on node voltage of distribution network. According to the obtained micro-grid reactive power control space matrix, the hierarchical clustering analysis method is used to partition the distribution network. Finally, taking IEEE 33 Node System as an example, based on MATLAB Simulink simulates the reactive power control capability under microgrid interconnection. It focuses on the analysis of the voltage adjustment process of the nodes in the microgrid, under the condition of sudden load increase and sudden load decrease, and verifies the rationality of the reactive power control partition.
Key words: microgrid; reactive control space matrix; hierarchical clustering; distribution network
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