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1.国网湖南省电力有限公司,湖南省长沙市 410004
2.高效清洁发电技术湖南省重点实验室(国网湖南省电力有限公司电力科学研究院),湖南省长沙市 410031
3.国网湖南省电力有限公司超高压变电公司,湖南省长沙市 410004
4.新型电力系统运行与控制全国重点实验室(清华大学),北京市 100084
Received:05 October 2025,
Revised:2026-05-21,
Online First:13 October 2026,
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戴远航,杨丹,刘永刚等.基于阻抗参数的机组暂态电压稳定支撑能力排序方法[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20251005002.
DAI Yuanhang,YANG Dan,LIU Yonggang,et al.Sorting Method for Transient Voltage Stability Support Capability of Units Based on Impedance Parameters[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20251005002.
戴远航,杨丹,刘永刚等.基于阻抗参数的机组暂态电压稳定支撑能力排序方法[J/OL].电力系统自动化, http://dx.doi.org/10.7500/AEPS20251005002. DOI:
DAI Yuanhang,YANG Dan,LIU Yonggang,et al.Sorting Method for Transient Voltage Stability Support Capability of Units Based on Impedance Parameters[J/OL].Automation of Electric Power Systems, http://dx.doi.org/10.7500/AEPS20251005002. DOI:
特高压直流馈入受端电网需要通过维持一定的开机方式要求保障暂态电压稳定水平;而在新型电力系统建设背景下,电网运行又要求在确保安全稳定的前提下尽量减少开机,以促进直流和可再生能源消纳。对不同机组的暂态电压稳定支撑能力进行科学量化并排序,筛选出支撑效果更好的机组,能够为电网运行方式统筹安排、新增机组接入规划制定提供重要参考。为此,文中提出一种基于阻抗参数的机组暂态电压稳定支撑能力排序方法。该方法综合考虑机组对故障点短路电流和暂态过程中电压恢复最慢节点的无功支撑效果两个关键影响因素,实现了对机组暂态电压稳定支撑能力的排序。基于中国电机工程学会电压稳定标准算例(CSEE-VS)和湖南电网实际系统数据,验证了所提出方法的有效性。
Committing a certain number of generators is needed to guarantee the transient voltage stability of the receiving-end power system with ultra-high-voltage direct current (UHVDC). However
under the background of the construction of new power system
minimizing the number of generators in operation is an objective requirement to ensure security and stability
so as to promote the integration of UHVDC and renewable energy. Scientifically quantifying the transient voltage stability support capabilities of generators and selecting the generators with better supporting performance are important for the operation of real power system
as well as the optimal location selection of the generators at the planning stage. This paper proposes a sorting method for transient voltage stability support capability of generators considering impedance parameters. This method comprehensively considers two key influencing factors
i.e.
the short-circuit current contributed by generators to the fault point and the reactive power support effect on the bus with the slowest voltage recovery during the transient process
and realizes the sorting of the transient voltage support capabilities of generators. Based on the voltage stability benchmark system proposed by Chinese Society for Electrical Engineering-Voltage Stability (CSEE-VS) and the actual system data of Hunan Power Grid
the effectiveness of the proposed method is verified.
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