中国电机工程学报2026，Vol.46Issue(1)：127-141,中插10,16.DOI:10.13334/j.0258-8013.pcsee.241327
计及直流跨区互联系统频率稳定的多调频资源协调优化研究
Research on Coordinated Optimization of Multiple Frequency Regulation Resources Considering Frequency Stability of Inter-regional HVDC Interconnected Systems
摘要
Abstract
The widespread application of ultra-high voltage direct current(UHVDC)technology is driving the transition of power systems towards a mode of regional grid interconnection.As synchronous generators in power systems are gradually replaced by power electronic equipment,such as new energy sources and large-scale HVDC systems,the power systems face increased frequency security risks.Fully utilizing the frequency support capabilities of various frequency regulation resources has become an effective approach.Within a region,flexible coordination between conventional units and new energy units should be considered;between regions,utilizing HVDC systems can achieve flexible frequency support.To this end,this paper establishes a frequency response model for an inter-regional HVDC interconnected system.This model considers the impact of HVDC,new energy units,and conventional units on frequency dynamics,and describes the relationship between power disturbances and frequency deviations in different regions.Based on this,a coordinated optimization model for multiple resources considering frequency stability is proposed.To ensure the tractability of frequency security constraints,this paper proposes an iterative algorithm of simplification-approximation-correction,which strictly ensures frequency security while embedding the optimization model.Case study results demonstrate the effectiveness of the proposed method and highlight the advantages of coordinating multiple resources in an HVDC interconnected system.关键词
直流跨区互联/多调频资源协调/直流调频/频率动态Key words
inter-regional HVDC interconnected systems/coordination of multiple frequency regulation resources/HVDC frequency regulation/frequency dynamics分类
信息技术与安全科学引用本文复制引用
徐辰宇,赵冬梅,王浩翔,冯向阳,白俊辉,陶然..计及直流跨区互联系统频率稳定的多调频资源协调优化研究[J].中国电机工程学报,2026,46(1):127-141,中插10,16.基金项目
国家重点研发计划项目(2022YFB2402700) （2022YFB2402700）
国家电网有限公司科技项目(52272222001J).National Key R&D Program of China(2022YFB2402700) （52272222001J）
Science and Technology Project of State Grid Corporation of China(52272222001J). （52272222001J）
