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微電網(wǎng)聯(lián)網(wǎng)的購(gòu)售電優(yōu)化策略

來(lái)源:電工電氣發(fā)布時(shí)間:2016-09-20 13:20 瀏覽次數(shù):8
微電網(wǎng)聯(lián)網(wǎng)的購(gòu)售電優(yōu)化策略
 
徐小明1,吳振鵬2
(1 貴州大學(xué) 電氣工程學(xué)院,貴州 貴陽(yáng) 550025;2 國(guó)網(wǎng)衢州供電公司,浙江 衢州 324000)
 
    摘 要:介紹了微電網(wǎng)并網(wǎng)的運(yùn)營(yíng)策略,提出了微電網(wǎng)并網(wǎng)運(yùn)行模式下的經(jīng)濟(jì)運(yùn)行優(yōu)化模型。模型中考慮了微電網(wǎng)的運(yùn)行成本、環(huán)境成本、停電補(bǔ)償成本以及與大電網(wǎng)之間的功率交換。通過(guò)粒子群算法,以典型日負(fù)荷曲線為例,得到了微電網(wǎng)并網(wǎng)運(yùn)行時(shí)的各機(jī)組出力、微電網(wǎng)的售電收益、微電網(wǎng)的運(yùn)行成本、峰值時(shí)的停電補(bǔ)償費(fèi)用以及和大電網(wǎng)之間的交換功率。仿真結(jié)果表明,微電網(wǎng)代理商可以根據(jù)自身的情況,靈活調(diào)節(jié)各機(jī)組出力以及通過(guò)與大電網(wǎng)之間的功率交換來(lái)獲取最大的利益。
    關(guān)鍵詞:微電網(wǎng);并網(wǎng);購(gòu)售電;優(yōu)化策略
    中圖分類號(hào):TM727   文獻(xiàn)標(biāo)識(shí)碼:A   文章編號(hào):1007-3175(2016)09-0023-03
 
Optimal Strategy of Purchase and Sale of Micro
Grid Connected Operation
 
XU Xiao-ming1, WU Zhen-peng2
(1 Department of Electrical Engineering, Guizhou University, Guiyang 550025, China;
2 State Grid Quzhou Power Supply Company, Quzhou 324000, China)
 
    Abstract: Introduction was made to the operation strategy of micro grid connected. This paper proposed the optimization model of economic operation in micro grid connected operation mode. The design of the model considered the micro grid operation cost, environmental cost, outage cost compensation and the power exchange with the large power grid. Using the particle swarm algorithm and taking the typical daily load curve for example, this paper obtained the output of each unit, the earnings of micro grid electricity sale, the operation cost of micro grid, the cost of the peak power outage compensation and the power exchange with the large power grid.The simulation results show that the micro grid agents,
according to their own situation, can flexibly adjust each unit output and obtain the maximum benefit through the power exchange with the large power grid.
    Key words: micro grid; grid connected operation; purchase and sale of electricity; optimization strategy
 
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