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考虑新能源性能风险的调频辅助服务市场出清与调度策略
作者:
作者单位:

1.东南大学电气工程学院,江苏省 南京市 210096;2.宁夏电力交易中心有限公司,宁夏回族自治区银川市 750000;3.南瑞集团有限公司(国网电力科学研究院有限公司),江苏省 南京市 211106;4.智能电网保护和运行控制国家重点实验室,江苏省 南京市 211106

作者简介:

通讯作者:

基金项目:

国家自然科学基金资助项目(51977032);南瑞集团有限公司国家重点实验室项目“多类型新能源发电资源参与调频辅助服务市场机制”;宁夏电力公司科技项目“电力市场环境下促进新能源消纳的多元化交易机制”。


Clearing and Scheduling Strategy of Frequency Regulation Ancillary Service Market Considering Risk of Renewable Energy Performance
Author:
Affiliation:

1.School of Electrical Engineering, Southeast University, Nanjing 210096, China;2.Ningxia Electricity Power Marketing Centre Co., Ltd., Yinchuan 750000, China;3.NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106, China;4.State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106, China

Fund Project:

This work is supported by National Natural Science Foundation of China (No.51977032), NARI Group Corporation (State Grid Electric Power Research Institute) and State Grid Ningxia Electric Power Company.

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    摘要:

    新能源机组具有控制灵活以及响应迅速等特点,在技术上具有参与电力系统调频的能力,如将其作为一种调频资源,将有利于缓解系统调频压力。考虑到新能源机组出力具有一定的波动性与不确定性,文中提出了新能源参与调频的辅助服务市场机制,以调频准确性概率指标评估其调频性能指标,进行其调频风险损失量化计算,建立了考虑新能源调频风险的市场出清模型;在实际调度过程中,考虑新能源机组实时调频准确性与历史数据的偏差,构建了基于模型预测控制的实时调频调度模型,根据调度结果和机组实时出力的准确性指标对调度进行反馈校正。提出的市场机制和调度策略在充分利用新能源作为调频资源的同时,有效地控制了新能源调频出力不确定性的风险。仿真算例验证了模型和算法的有效性。

    Abstract:

    The renewable energy unit has the characteristics of flexible control and rapid response. Technically, it has the ability to participate in power system frequency regulation. If it is regarded as a frequency regulation resource, it will be beneficial to relieve system pressure. In this paper, the ancillary service market mechanism of renewable energy participating in frequency regulation is proposed considering the fluctuation and uncertainty of output for renewable energy units. The performance index of frequency regulation is evaluated with the accuracy probability index, the risk loss of frequency regulation is calculated quantitatively, and the market clearing model considering the risk of frequency regulation of renewable energy is established. In the actual scheduling process, considering the deviation between the accuracy of real-time frequency regulation for renewable energy units and the historical data, a scheduling model of real-time frequency regulation based on model predictive control is constructed, feedback correction is used in scheduling based on accuracy indicators of scheduling results and real-time output of units. The market mechanism and scheduling strategy proposed in this paper not only make full use of renewable energy as frequency regulation resource, but also effectively control the uncertainty risk of output of renewable energy. Simulation examples show the effectiveness of the model and algorithm.

    表 1 2种调度结果对比Table 1 Comparison of two scheduling results
    表 2 Table 2
    表 3 Table 3
    图1 2个调频性能指标正态分布的概率密度函数Fig.1 Probability density function of normal distribution for two frequency regulation performance indicators
    图2 考虑新能源参与的调频出清与调度的流程图Fig.2 Flow chart of frequency regulation clearing and scheduling with new energy participation
    图3 基于MPC的实时调度时序图Fig.3 Time sequence diagram of real-time scheduling based on MPC
    图4 各机组中标容量与申报容量的比值Fig.4 Ratio of bid-winning capacity and declared capacity of every unit
    图5 12个中标的调频供应商的综合调频性能指标Fig.5 Comprehensive frequency regulation performance indicators for 12 bided frequency regulation providers
    图6 传统排序法下4个风电场的调度结果Fig.6 Scheduling results of four wind farms in traditional scheduling method
    图7 基于MPC的4个风电场的调度结果Fig.7 Scheduling results of 4 wind farms based on MPC
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引用本文

杨家琪,喻洁,田宏杰,等.考虑新能源性能风险的调频辅助服务市场出清与调度策略[J/OL].电力系统自动化,http://doi.org/10.7500/AEPS20190423009.
YANG Jiaqi,YU Jie,TIAN Hongjie,et al.Clearing and Scheduling Strategy of Frequency Regulation Ancillary Service Market Considering Risk of Renewable Energy Performance[J/OL].Automation of Electric Power Systems,http://doi.org/10.7500/AEPS20190423009.

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历史
  • 收稿日期:2019-04-23
  • 最后修改日期:2020-02-16
  • 录用日期:2019-10-05
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