电力库模式发电侧竞价上网报价问题研究

发布时间：2018-02-28 10:01

本文关键词： 竞价上网结构化方法功率报价曲线发电侧　出处：《北京科技大学》2016年博士论文　论文类型：学位论文

【摘要】：电力行业作为我国基础保障型行业,随着社会主义市场经济体制的发展,电力垄断体制的弊端日益凸显,电力市场的工作模式、管理体制都面临商业化运营问题,我国电力市场的改革将逐步建立“厂网分开,竞价上网”机制。本文针对我国电力交易市场中普遍采用的交易模式—电力库模式,研究其中发电厂商报价发电厂竞价上网相关问题,涉及发电侧厂商的报价策略、机组功率报价曲线确定、合同电量分配等具体科学问题。论文的主要工作有：(1)针对电力交易市场主要的交易模式—电力库模式,建立了电力交易竞价的功率报价曲线模型,明晰了电力调度中心确定系统边际电价的原则,确定了发电成本与系统边际电价之间各种关系情况下发电厂商的报价策略。(2)分析了合同电量对应的出力点、发电成本以及系统边际电价预测值之间的关系,建立了发电成本以及系统边际电价预测值在三种不同关系条件下的发电厂商机组功率报价曲线结构及机组功率报价曲线算法。针对提出的机组功率报价曲线算法分析了当机组出力点变化时,系统边际电价预测值的波动对机组出力功率的影响。(3)针对发电厂商依据电力调度中给定的机组全天的合同电量,考虑用电量变化趋势、机组的开机升出力、停机降出力及正常出力特性,研究了合同电量分配到每个时段的问题。利用电网负荷预测曲线及机组全天合同电量计算机组各时段的合同电量,给出了基于电网负荷预测曲线的合同电量分配初始方案确定方法。在合同电量分配初始方案的基础上,提出了“削峰填谷平移算法”和“压缩调幅算法”两种调整方法,目的是使合同电量分配方案满足机组出力上下限约束。进一步提出了考虑机组出力变化特性的合同电量分配方案优化调整的“瀑布迭代”算法。
[Abstract]:With the development of the socialist market economy system, the disadvantages of the electric power monopoly system become increasingly prominent. The working mode and management system of the electric power market are all faced with the problems of commercial operation. The reform of China's electricity market will gradually establish the mechanism of "separation of power plants and networks, bidding for the Internet". This paper aims at the widely used trading mode in the electricity trading market of our country, that is, the mode of electric power storage. This paper studies the problems related to the bidding of power plants, including the bidding strategy of the power generation side and the determination of the power quotation curve of the generating units. The main work of this paper is: (1) aiming at the main trading mode of electricity trading market, the power pool model, the power quotation curve model of electric power transaction bidding is established. This paper clarifies the principle of determining the system marginal electricity price in the power dispatching center, determines the bidding strategy of the power generation manufacturer under various relationships between the generation cost and the system marginal electricity price, and analyzes the output points corresponding to the contract quantity of electricity. The relationship between the cost of generation and the forecast value of the marginal electricity price of the system, In this paper, the structure of power quotation curve and the algorithm of unit power quotation curve under three different relationships between generation cost and the forecast value of system marginal electricity price are established. Based on the proposed algorithm of unit power quotation curve, the structure of power quotation curve and the algorithm of unit power quotation curve are established. When the generating point of the unit is changed, The influence of the forecast value of the system marginal price on the output power of the unit.) according to the contract electricity quantity of the unit given in the electric power dispatching, considering the change trend of the electricity consumption, the power of the unit will rise at the start of the unit. In this paper, the problem of distribution of contract electricity to each time period is studied by using the load forecasting curve of power network and the contract quantity of electricity in each period of time of computer group of all-day contract electric quantity. Based on the load forecasting curve of power network, the method of determining the initial scheme of contract electricity distribution is presented. On the basis of the initial scheme of contract electricity distribution, two adjustment methods are proposed, which are "peak-cutting and valley shifting algorithm" and "compression amplitude modulation algorithm". The purpose of this paper is to satisfy the upper and lower limit constraints of the unit output force, and a waterfall iteration algorithm is proposed to optimize and adjust the contract power distribution scheme taking into account the variation characteristics of the unit output.
【学位授予单位】：北京科技大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：F426.61

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