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1.华北电力大学电气与电子工程学院,河北省保定市 071003
2.国网江苏省电力有限公司,江苏省南京市 210024
3.国网江苏省电力有限公司淮安供电分公司,江苏省淮安市 223100
李鹏(1965—),男,博士,教授,博士生导师,主要研究方向:新能源电力系统、综合能源系统与微网。E-mail:ncepulp@ncepu.edu.cn
王加浩(1997—),男,通信作者,博士研究生,主要研究方向:电力系统无功电压协调控制、综合能源系统优化运行。E-mail:ncepuwjh@ncepu.edu.cn
徐贤(1978—),男,硕士,高级工程师,主要研究方向:电力系统自动化。E-mail:special_xuxian@163.com
收稿日期:2021-07-07,
修回日期:2021-12-31,
网络出版日期:2022-03-28,
纸质出版日期:2022-06-10
移动端阅览
李鹏,王加浩,徐贤等.面向新型电力系统潮流频繁波动的无功鲁棒分区方法[J].电力系统自动化,2022,46(11):102-110.
LI Peng,WANG Jiahao,XU Xian,et al.Robust Reactive Power Partitioning Method for Frequent Power Flow Fluctuation in New Power System[J].Automation of Electric Power Systems,2022,46(11):102-110.
李鹏,王加浩,徐贤等.面向新型电力系统潮流频繁波动的无功鲁棒分区方法[J].电力系统自动化,2022,46(11):102-110. DOI: 10.7500/AEPS20210707004.
LI Peng,WANG Jiahao,XU Xian,et al.Robust Reactive Power Partitioning Method for Frequent Power Flow Fluctuation in New Power System[J].Automation of Electric Power Systems,2022,46(11):102-110. DOI: 10.7500/AEPS20210707004.
随着可再生能源及柔性负荷渗透率的大幅增长,电力系统运行随机波动性增强,电网运行形态及系统特性发生较大改变。针对传统无功分区方法在匹配源荷双重特性变化中的不足,提出一种面向新型电力系统潮流频繁波动的无功鲁棒分区方法,在计及电网物理特性的基础上,利用电网的拓扑结构特点增加区域划分的鲁棒性。首先,提出一种名为“混合边权”的无功网络拓扑边权定义方法,为电网结构划分提供标度;然后,设计了基于并行GN算法的电网分区流程,并引入一种基于可达矩阵的分区连通性判断策略;最后,以IEEE标准算例分析了混合边权参数的特性,并以中国东部某区域电网为例进行验证。结果表明,所设计的无功分区策略能够有偏重地得到质量较高的分区结果,且能在潮流频繁波动情况下有效地稳定分区边界节点。
With the substantial increase in the penetration rate of renewable energy and flexible loads
the random fluctuation of power system operation has increased
and the power grid operation form and system characteristics have changed greatly. Aiming at overcoming the shortcomings of the traditional reactive power partitioning method in matching the dual characteristics variation on both source and load sides
a robust reactive power partitioning method for the frequent power flow fluctuation in the new power system is proposed. By taking into account the physical characteristics of the power system
the topology characteristics of the power grid are used to increase the robustness of the network partition. First
a parameter called “hybrid edge weight” is proposed to define the edge weight of reactive power network topology to provide a scale for the grid structure partition. Then
a power grid partitioning process based on the parallel GN algorithm is designed
and a new partitioning connectivity judgment strategy based on the reachable matrix is introduced. Finally
the IEEE standard system is used as an example to analyze the characteristics of hybrid edge weight parameters
and an actual power grid in a certain area of Eastern China is used as an example to verify. The results show that the designed reactive power partitioning strategy can obtain the high-quality partitioning results in a biased manner
and can effectively stabilize the partitioning boundary nodes under the frequent power flow fluctuation.
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