含高滲透率風(fēng)電的地區(qū)電網(wǎng)預(yù)防-緊急控制協(xié)調(diào)優(yōu)化
陳連凱1,姜國(guó)義1,周磊2,劉海波1,由楚1,揚(yáng)志華1,袁虎玲2
(1 內(nèi)蒙古東部電力有限公司,內(nèi)蒙古 呼和浩特 010020;
2 南瑞集團(tuán)公司(國(guó)網(wǎng)電力科學(xué)研究院),江蘇 南京 211100)
摘 要:風(fēng)電滲透率較高的弱送端電網(wǎng),孤網(wǎng)后高頻問(wèn)題突出,若存在大機(jī)小網(wǎng)特征,由于緊急控制措施的離散性較大,單純通過(guò)緊急控制,難以找到合適的穩(wěn)控切機(jī)組合來(lái)保證電網(wǎng)頻率穩(wěn)定。提出一種辨識(shí)大機(jī)小網(wǎng)系統(tǒng)中緊急控制措施適應(yīng)性的識(shí)別方法,并將現(xiàn)有緊急控制措施作為既有模型,綜合考慮大規(guī)模風(fēng)電接入的影響,并計(jì)及不同種類電源的綜合控制代價(jià),對(duì)預(yù)防控制與緊急控制策略進(jìn)行協(xié)調(diào)優(yōu)化。以蒙東興安地區(qū)電網(wǎng)為例,仿真結(jié)果驗(yàn)證了該方法的有效性。
關(guān)鍵詞:高滲透率風(fēng)電;預(yù)防控制;緊急控制;協(xié)調(diào)優(yōu)化;控制代價(jià)
中圖分類號(hào):TM614 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2017)03-0012-04
Coordination and Optimization of Regional Power Grid Preventive and Emergency Control for High
Permeability Wind Power
CHEN Lian-kai1, JIANG Guo-yi1, ZHOU Lei2, LIU Hai-bo1, YOU Chu1, YANG Zhi-hua1, YUAN Hu-ling2
(1 East Inner Mongolia Electric Power Company, Hohhot 010020, China;
2 NARI Group Corporation(State Grid Electric Power Research Institute), Nanjing 2111 00, China)
Abstract: High-frequency problem occurs in weak power supply network with high wind power permeability after the grid isolated. If there exists large-machine small-grid characteristics, because of the large dispersion of emergency control measures, it is difficult to find a suitable stability control cutting machine combination to ensure the grid frequency stabilization. This paper proposed a kind of identification method to discern the emergency control measures adaptability in large-machine small-grid system. The existing emergency control measure was acted as the model with comprehensive consideration large-scale wind power accessing impacts. The integrated control cost for different types of power supply was calculated to carry out coordination and optimization for the preventive and emergency control strategy. Taking Xing’an regional power grid of eastern Inner Mongolia for example, the simulation results confirmed the validity of the proposed method.
Key words: high permeability wind power; preventive control; emergency control; coordination and optimization; control cost
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