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在电力市场环境下,电网以最小化购电费用为目标,而发电公司以最大化售电收益为目标,如何寻找二者之间的市场成交点是一项复杂而重要的工作。制定发电计划时,机组的启停是必须考虑的问题。基于此,文中对电力市场中考虑机组启停约束的购电策略进行了研究,并建立了相应的数学模型,提出了机组报价对电网总购电费用灵敏度的概念,以及考虑机组启停约束的购电算法,得出的结论对制定发电计划有一定的指导意义。
In the electricity market environment, the grid aims to minimize the cost of electricity purchase. However, it is a complicated and important task for power generation companies to maximize sales revenue and find out the market turnover between the two. When setting up a power generation plan, starting and stopping of the unit is a problem that must be considered. Based on this, this paper studies the power purchase strategy considering the start-stop constraints in the electricity market, establishes the corresponding mathematical model, and puts forward the concept of unit purchase quotation sensitivity to the total power purchase cost and considering the start-stop constraints Buy electricity algorithm, the conclusions drawn to the development of power generation plan has some guiding significance.