含高滲透率光伏電場(chǎng)的聯(lián)合發(fā)電系統(tǒng)優(yōu)化運(yùn)行研究
吳志明
（華中科技大學(xué) 電氣與電子工程學(xué)院，湖北 武漢 430074）
摘 要：針對(duì)含高滲透率光伏的聯(lián)合發(fā)電系統(tǒng)優(yōu)化運(yùn)行問題，提出了聯(lián)合系統(tǒng)協(xié)調(diào)優(yōu)化模型。對(duì)含高滲透率光伏電場(chǎng)的聯(lián)合發(fā)電系統(tǒng)差異性進(jìn)行研究，分析得出運(yùn)行優(yōu)化特征；綜合考慮常規(guī)機(jī)組燃料成本、啟停成本、排污成本及棄光量，建立了以聯(lián)合發(fā)電系統(tǒng)各供能主體的逐時(shí)出力與火電機(jī)組的啟停變量為優(yōu)化變量的目標(biāo)函數(shù)，通過模型求解，實(shí)現(xiàn)聯(lián)合發(fā)電系統(tǒng)的整體運(yùn)行成本與棄光量最小的優(yōu)化目標(biāo)；所提出模型能夠最大程度提高系統(tǒng)光伏電場(chǎng)接納能力以及含高滲透率光伏發(fā)電電力系統(tǒng)的運(yùn)行經(jīng)濟(jì)性。應(yīng)用該模型對(duì)一個(gè)測(cè)試系統(tǒng)進(jìn)行計(jì)算仿真和分析，結(jié)果證明了模型的適用性和有效性。
關(guān)鍵詞：高滲透率光伏；聯(lián)合發(fā)電系統(tǒng)；協(xié)調(diào)優(yōu)化模型；逐時(shí)出力
中圖分類號(hào)：TM615 文獻(xiàn)標(biāo)識(shí)碼：A 文章編號(hào)：1007-3175(2018)01-0023-04
Study on Optimal Operation of Joint Power System with High Permeability Photovoltaic Electric Field
WU Zhi-ming
（School of Electric and Electronic Engineering, Huazhong University of Science and Technology, Wuhan 430074, China）
Abstract: Aiming at the optimal operation of the combined power generation system with high permeability photovoltaic, this paper proposed a joint system coordination and optimization model. This paper researched on the difference of the joint generation system with high permeability photovoltaic and obtained the operation optimization characteristics. Based on this, considering the conventional unit fuel cost, start and stop cost, sewage cost and the amount of discarded light, this paper established the objective functions taking the starting and stopping variables of time-dependent output and thermal power unit of main energy supply of combined operation system as the optimization variables. The solution method for model realized the optimal operation target of combined operation system and the minimum amount of discarded light. The proposed model can improve the maximum capacity of the system photovoltaic system and the operating economy of high-permeability photovoltaic power generation system. This model is used to carry out the system test and simulation analysis. The results verify the applicability and validity of the model.
Key words: high permeability photovoltaic energy; joint generation system; coordinated optimization model; time-dependent output
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