發(fā)布時間：2018-08-17 16:35

【摘要】：微網(wǎng)中可再生能源比重通常較大,其固有的間歇性和隨機(jī)性給微網(wǎng)調(diào)度帶來困難.為應(yīng)對可再生能源的出力波動,本文綜合考慮風(fēng)、柴、燃料電池、蓄電池等機(jī)組運(yùn)行特性,建立了基于極限場景法的微網(wǎng)日前魯棒經(jīng)濟(jì)調(diào)度模型;通過將調(diào)度計(jì)劃的棄風(fēng)及切負(fù)荷電量轉(zhuǎn)化為經(jīng)濟(jì)成本,提出了使調(diào)度計(jì)劃發(fā)電成本和風(fēng)險成本(棄風(fēng)、切負(fù)荷成本之和)綜合最優(yōu)的誤差邊界優(yōu)化方法.從風(fēng)電預(yù)測精度、蓄電池容量及切負(fù)荷價格3方面分析了魯棒經(jīng)濟(jì)調(diào)度在微網(wǎng)中的適應(yīng)性.結(jié)果表明:微網(wǎng)魯棒經(jīng)濟(jì)調(diào)度在發(fā)電成本上稍顯劣勢,但在減少棄風(fēng)、切負(fù)荷的電量方面具有明顯優(yōu)勢,并且在風(fēng)電預(yù)測精度低、蓄電池容量不足以及切負(fù)荷價格較高的微網(wǎng)地區(qū)更適合采用魯棒經(jīng)濟(jì)調(diào)度方法.
[Abstract]:The proportion of renewable energy in microgrid is usually large, and its inherent intermittency and randomness bring difficulties to microgrid scheduling. In order to cope with the force fluctuation of renewable energy, this paper considers the operating characteristics of wind, firewood, fuel cell, battery and so on, and establishes a robust economic scheduling model of micro-grid before day based on the limit scenario method. An error boundary optimization method is proposed to optimize the generation cost and risk cost (the sum of wind and load cutting cost) of scheduling plan by converting the abandoned wind and load cutting capacity into economic cost. The adaptability of robust economic dispatching in microgrid is analyzed from three aspects: wind power prediction accuracy, battery capacity and load shedding price. The results show that the robust economic dispatch of microgrid has a slight disadvantage in generating cost, but it has obvious advantages in reducing the electricity quantity of wind abandonment and load cutting, and has low prediction accuracy in wind power generation. It is more suitable to adopt robust economic dispatching method in the microgrid area where the storage battery capacity is insufficient and the load cutting price is higher.
【作者單位】： 華南理工大學(xué)電力學(xué)院;
【基金】：國家優(yōu)秀青年科學(xué)基金項(xiàng)目(51322702) 國家自然科學(xué)基金項(xiàng)目(51177049)資助~~
【分類號】：TM73
，

本文編號：2188247