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提出了在输配分离的电力市场中存在多种电力双边合同和分布式发电时配电公司的中长期购电优化模型,通过求解混合0-1整数规划问题得到配电公司从各个不同电能来源处的最优购电比例以使得购电费用最小。双边合同考虑了非常灵活的合同形式,和实际电力市场中的双边电力合同相接近。算例结果表明配电公司可以通过多种合同和不同市场的组合购电来降低购电费用。
Proposed in the power transmission and distribution in the power market there is a variety of bilateral electricity contracts and distributed generation of medium and long-term electricity purchase company optimization model, by solving the mixed 0-1 integer programming problem distribution companies from various sources of electricity The optimal ratio of the purchase of electricity in order to minimize the cost of electricity purchase. Bilateral contracts take into account the very flexible form of contracts that are close to the bilateral power contracts in the real electricity market. The results of the example show that the distribution company can reduce the cost of purchasing power by purchasing electricity through various contracts and different market combinations.