城市電網(wǎng)最大供電能力評價算法

提出了一種求解城市電網(wǎng)最大供電能力指標(biāo)的模型，該模型是一種基于直流潮流的線性規(guī)劃模型，以網(wǎng)絡(luò)所能供應(yīng)的最大負荷為目標(biāo)函數(shù)，以網(wǎng)絡(luò)的功率平衡、各支路(線路、變壓器)的額定容量、電源點和負荷點的功率約束為基本約束條件。以我國某地區(qū)城市的實際網(wǎng)絡(luò)為算例來驗證該模型的有效性，并采用傳統(tǒng)潮流計算方法驗證了該模型的準(zhǔn)確性。
關(guān)鍵詞：城市電網(wǎng)；直流潮流；線性規(guī)劃；最大供電能力

ABSTRACT: A model to solve maximum power supply capability of urban distribution network is proposed, which is based on linear programming model of DC power flow. In the
proposed model the maximum load power is taken as objective
function, and the power balance of network, rated capacity of
all branches (including lines and transformers), power
constraints at power source points and load points are basic
constraint conditions. Taking the actual distribution network of
a city in a certain domestic district for example, the
effectiveness the proposed model are verified, and the accuracy
of the proposed model is also verified by traditional power
flow calculation method.
KEY WORDS: urban distribution network；DC power flow ； linear programming ； maximum power supply capability