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| 摘要: |
| 针对水电机组的特点,对联营市场模式下的水电机组竞价策略和水电市场势力进行了总结和评述。在过渡时期,水电机组继承垂直一体化管理模式,配合火电运行报价,不能突出水电的效益。采用完全竞争方式则需要建立现货交易市场下的水库优化运行模型,但改进后的模型可以考虑传输网络约束、机组组合以及系统中的不确定因素。为了协调利益关系,对同属一个业主的梯级电厂,可以聚合为一个报价单元,而建立水批发市场共同调节不同业主的收入分配。对市场势力的研究发现,水电厂可以通过研究不同时段间的需求弹性差来行使市场势力,在需求的低弹性阶段不发电而在高弹性时发足够的电。纵观国内外由市场实现水电资源优化配置的研究,今后还需要在水电的市场地位、区域水电厂的竞争模式、综合利用、梯级水电竞价、弃水电量、电价预测以及电力市场环境下的流域梯级开发调度模型和算法上进行更加广泛的研究。 |
| 关键词: 竞价,水电厂,日前市场,备用市场 |
| DOI： |
| 分类号:TM622 F123.9 |
| 基金项目:国家重点基础研究发展计划专项资助项目(2004CB217905)~~ |
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| Survey on bidding strategies of hydro units in electricity market |
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ZENG Yong-hong WANG Xi-fan
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| Abstract: |
| According to characteristics of hydro units,bidding strategies and market power in pool market are summarized and remarked.As a heritage of vertical management mode,hydropower plants have to gear bidding strategies to assort with the operation of thermal power plants in interim period,which underestimates the efficiency of hydro units.While in completely competitive mode,an optimal operational model of reservoir in spot market is necessary.An improved model is possible to represent the transmission network restraint,unit commitment and system uncertainties.In order to harmonize benefits,cascaded plants of same firm can be aggregated as a bidding unit while the revenue allocation among different firms can be regulated by wholesale water market.The research on market power reveals that,hydro power producers may exercise market power by exploiting the price elasticity of demand across periods:allocate little supply to low periods and much to high periods.Further researches on the market position of hydropower plant,the competitive mode of local hydropower plant,the comprehensive utilization,the bidding strategy of cascaded hydropower plants,the spilled energy,the electricity price forecast,and the dispatch model and algorithm of cascaded hydroelectric plants in electricity market are needed. This project is supported by the Special Foundation of the National Basic Research Program of China(2004 CB 217905). |
| Key words: bidding,hydropower plant,day-ahead market,reserve market |
