基于频率偏差的跨区电网交易偏差电量责任判定及定价方法

发布时间：2018-08-19 15:03

【摘要】：跨区电网电力交易中,偏差电量及其合理定价是交易结算中亟需解决的重要问题,直接关系到交易各方的经济利益和公平性。文中提出一种基于频率平均偏差的跨区交流电网偏差电量责任判定模型及定价方法,构建了用于联络线偏差电量责任判定的"米"区图。电网交易中心在各交易日通过电网调度和关口电量表调取相关数据,获取区域间分时间段统计的实际交换电量,并计算该时段中频率偏差平均量和偏差电量,根据该交易日各时段频率平均偏差及电量偏差的运行点在"米"区图中所处的8个不同区位判定该时段偏差电量责任方,并确定相应责任程度等级,然后根据偏差电量责任方和责任程度确定不同的惩罚电价,日清月结,进而实现对跨区电网交易合同电量与偏差电量的差异化定价和分开结算。通过实际算例分析验证了方法的有效性。
[Abstract]:In the inter-regional power grid transaction, the deviated power and its reasonable pricing are the important problems to be solved urgently, which are directly related to the economic interests and fairness of all parties involved in the transaction. The "meter" zone diagram for the determination of electricity liability. The power grid trading center collects relevant data through the power grid dispatch and gateway electricity meter on each trading day, obtains the actual exchange electricity quantity of the inter-regional time-interval statistics, and calculates the average frequency deviation and the deviation electricity quantity in the interval, according to the average frequency deviation and the electricity quantity deviation in each trading day. The eight different locations of the operation point in the "metre" area diagram determine the responsible party for the deviated electricity during the period, and determine the corresponding level of responsibility, and then determine different penalty prices according to the responsible party for the deviated electricity and the degree of responsibility, and settle the day and the month, thus realizing the differential pricing and separation of the contract electricity and the deviated electricity of the inter-regional power grid transaction. The effectiveness of the method is verified by a practical example.
【作者单位】：武汉大学电气工程学院;国家电网华中电力交易分中心;国网湖北省电力公司经济技术研究院;
【基金】：国家电网公司科技项目(JS033[2014])~~
【分类号】：F426.61

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