日启停燃气机组调峰运行方法

发布时间：2018-07-02 21:41

本文选题：燃气机组 + 发电　；参考：《中国电机工程学报》2017年20期

【摘要】：燃气机组是我国电网重要调峰电源,如何充分发挥其调峰性能对缓解电网调峰压力尤为关键。该文考虑燃气机组日启停运行现状,提出混合启发搜索策略和切负荷策略的燃气机组调峰运行方法。该方法将计划电量作为单机控制目标,考虑出力上下限确定机组开机时长范围,同时以负荷高低为启发信息,搜索确定可行的连续开机时段集合;考虑可调出力下限,采用改进切负荷策略优化确定每种开机方案的高峰出力过程,并以余荷均方差最小为准则选择最优的开机运行方案和机组发电计划。通过浙江电网日前发电计划数据应用分析表明,该文所提方法改进了以往燃气机组高峰时段固定出力的运行方式,提高了对负荷调节的灵活性,较实际发电计划具有更好的调峰效果。
[Abstract]:Gas generating unit is an important peak-shaving power supply in China's power grid. How to give full play to its peak-shaving performance is particularly critical to alleviate the peak-shaving pressure of power grid. Considering the current situation of daily start-up and shutdown of gas generating units, this paper puts forward a new method of peak shaving operation of gas units based on hybrid heuristic search strategy and load shedding strategy. In this method, the planned quantity of electricity is regarded as the control target of a single machine, the upper and lower limits of the force are taken into account to determine the operating time range of the unit, at the same time, the load level is taken as the heuristic information to search and determine the feasible set of continuous start-up periods, and the lower limit of the adjustable force is considered. An improved load shedding strategy is adopted to optimize the peak output process of each startup scheme, and the minimum variance of residual load is taken as the criterion to select the optimal start-up operation scheme and generating plan. Through the application analysis of daily generation planning data in Zhejiang Power Grid, it is shown that the method proposed in this paper has improved the operation mode of fixed force in the peak period of gas generating units, and improved the flexibility of load regulation. Compared with actual power generation plan, it has better peak-shaving effect.
【作者单位】：大连理工大学水电与水信息研究所;国网浙江电力调度控制中心;
【基金】：国家自然科学基金项目(91547201,51579029) 中国学位与研究生教育学会立项资助(C-2015Y0501-007)~~
【分类号】：TM73

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