多電源虛擬電廠優(yōu)化運(yùn)行研究

管超

摘 要：分布式能源因容量小、出力隨機(jī)等特征使其并網(wǎng)后難以調(diào)度，為此虛擬電廠應(yīng)運(yùn)而生。本文主要從調(diào)度層面對(duì)虛擬電廠的運(yùn)行控制進(jìn)行優(yōu)化。基于激勵(lì)需求響應(yīng)引入含自彈性和交叉彈性的負(fù)荷經(jīng)濟(jì)模型，建立了以虛擬電廠內(nèi)部利潤(rùn)最大和二氧化碳排放量最小為目標(biāo)的優(yōu)化模型，并提出功率平衡、機(jī)組出力上下限等約束條件。選取了合適的算例，尋找優(yōu)化模型的全局最優(yōu)解，驗(yàn)證了本文所建立的優(yōu)化調(diào)度模型具有一定的科學(xué)性和合理性。

關(guān)鍵詞：虛擬發(fā)電廠;分布式電源;優(yōu)化運(yùn)行

ABSTRACT： The capacity of distributed generation is too small and its output is random， which makes it difficult to dispatch after grid connection. Therefore， virtual power plant comes into being. This paper optimizes the operation control of the virtual power plant from the scheduling level. Based on the incentive demand response， a load economy model with self-elasticity and cross-elasticity is introduced. It is proposed to establish the objective function with the maximum profit and minimum carbon dioxide emission. Constraints such as power balance， upper and lower limits of unit output are also proposed. Then the paper selects the appropriate examples， finding global optimal solution. The results show that the model has certain scientific and reasonable.

KEY WORDS：virtual power plant; distributed power; optimized operation