燃气机组两部制电价机制

发布时间：2018-09-19 20:38

【摘要】：我国面临严峻的环保形势,需要大力发展清洁能源,系统中可再生能源占比日益增大;但可再生能源发电具有间歇性、随机性和反调节特性,这在一定程度上加大了系统运行的不稳定性,使得系统中需要较多的灵活电源。燃气机组具有启停迅速、运行灵活的特点,而且其相较燃煤机组具有污染物排放少的环保优势,使得燃气机组成为电力系统中灵活电源的理想选择。目前我国燃气机组的发电成本仍然相对较高,而现有的电价机制不能保证燃气机组回收成本并获得合理利润,此外我国目前尚在发展但并不完善的电力市场机制也不利于燃气机组在现有电力市场中获得收益,这都大大影响了燃气机组发电的积极性。因此,我国迫切地需要建立科学的燃气机组电价机制,以此激励燃气机组为电网提供优质的服务,为电网接纳更多比例的可再生能源提供有利的条件。为了保证燃气机组的公平合理收益,论文提出了能够适应我国当前电力系统现状和电力市场化水平的燃气机组两部制电价机制。论文首先分析了燃气机组的技术性优势和经济性特点,并与燃煤机组的经济性和环保性做了对比;其次在分析了燃气机组的变动和固定成本的基础上,设计了燃气机组的两部制电价,容量电价基于模糊聚类分类定价,电量电价通过电力市场参与竞价。其中容量电价依据经营期电价理论,建立了燃气机组容量电价模型,并在该模型的基础上,应用模糊聚类原理,构建基于模糊聚类的燃气机组容量电价模型,使得机组定价摆脱“一机一价”模式,而是制定同类机组共用同一价格的激励性容量电价,促进机组提高发电效率;电量电价方面,本文分别给出了机组参与电能量市场和辅助服务市场的报价模型和策略。最后本文分别针对燃气机组基于模糊聚类的分类容量电价计算和参与市场竞争的电量电价的算例进行分析,验证了所提出模型和方法的有效性。
[Abstract]:Facing the severe environmental protection situation, China needs to vigorously develop clean energy, the proportion of renewable energy in the system is increasing, but renewable energy generation has the characteristics of intermittent, randomness and anti-regulation. This increases the instability of the system to a certain extent and makes the system need more flexible power supply. Gas turbine has the characteristics of quick start and stop, flexible operation, and it has the advantage of less pollutant emission than coal-fired unit, which makes gas unit an ideal choice for flexible power supply in power system. At present, the generation cost of gas generating units in our country is still relatively high, but the existing electricity price mechanism can not guarantee the recovery cost of gas units and obtain reasonable profits. In addition, the electricity market mechanism which is still developing but not perfect in our country is not conducive to the profit of gas generating units in the existing electricity market, which greatly affects the enthusiasm of gas generating units. Therefore, our country urgently needs to establish the scientific gas unit electricity price mechanism, in order to stimulate the gas unit to provide the high quality service for the grid, provides the advantageous condition for the grid to accept more renewable energy sources. In order to ensure the fair and reasonable income of gas generating units, this paper puts forward a two-part electricity pricing mechanism which can adapt to the current situation of power system and the level of electricity marketization in China. Firstly, the paper analyzes the technical advantages and economic characteristics of gas units, and compares them with the economic and environmental protection of coal-fired units; secondly, on the basis of analyzing the changes and fixed costs of gas units, The two-part electricity price of gas unit is designed, the capacity price is based on fuzzy clustering classification pricing, and the electricity price participates in the bidding through the electricity market. Based on the theory of electricity price in operation period, the capacity price model of gas unit is established. Based on the model, the capacity price model of gas unit based on fuzzy clustering is constructed by applying the fuzzy clustering principle. Instead of the "one machine, one price" model, the unit pricing can set the incentive capacity price of the same kind of unit, which can promote the generation efficiency of the unit and increase the electricity price. In this paper, the bidding models and strategies for generating units to participate in electric energy market and auxiliary service market are given respectively. Finally, this paper analyzes the calculation of classified capacity price based on fuzzy clustering and the example of electricity price which participates in the market competition, and verifies the validity of the proposed model and method.
【学位授予单位】：华北电力大学(北京)
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：F426.61

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