Xu Sudi,Wang Chenqing,Gao Lei,et al.Influence analysis of PMU measurement characteristics on power system inertia evaluation accuracy[J].Electric Power Automation Equipment,2026,46(10):200-208.
Xu Sudi,Wang Chenqing,Gao Lei,et al.Influence analysis of PMU measurement characteristics on power system inertia evaluation accuracy[J].Electric Power Automation Equipment,2026,46(10):200-208.DOI: 10.16081/j.epae.202603026.
Influence analysis of PMU measurement characteristics on power system inertia evaluation accuracy
The frequency and power measurement performance of phasor measurement units(PMUs) directly affects the accuracy of inertia evaluation. In addition,it remains unclear whether the existing PMU standards are suitable for the requirements of inertia evaluation. Therefore,the impact of PMU measurement characteris-tics on the accuracy of power system inertia evaluation is analyzed. According to the power integration method-based inertia evaluation model,an analysis model of the inertia evaluation error caused by the PMU power and frequency measurement accuracy is established,and the fundamental reasons of the inertia error caused by the PMU measurement characteristics are revealed. Based on the error model,the influence mecha-nism of PMU measurement characteristics and their coupling effects on the inertia evaluation accuracy are analyzed from three aspects,namely the time synchronous deviation between rotate speed and power,the frequency communication resolution and the PMU measurement accuracy. The effectiveness and reliability of the proposed analysis method are verified through field PMU data test and real time digital simulator-based semi-physical simulation test. The test and analysis results can provide a theoretical basis and guidance for the optimization of PMU frequency measurement algorithms and inertia evaluation methods,as well as the expansion of PMU standards.
Hong Hanxiao , Wu Chenxi , Ni Suoyin . Optimal scheduling of new-type power system considering frequency-inertia security constraints [J]. Electric Power Automation Equipment , 2024 , 44 ( 8 ): 176 - 184 .
Zhang Zhigang , Kang Chongqing . Challenges and prospects for constructing the new-type power system towards a carbon neutrality future [J]. Proceedings of the CSEE , 2022 , 42 ( 8 ): 2806 - 2818 .
Jia Jiaoxin , Yang Tianqi , Yan Xiangwu , et al . Research progress on equivalent inertia estimation of grid-connected power electronic devices [J]. Electric Power Automation Equipment , 2023 , 43 ( 9 ): 3 - 10 .
Lu Zongxiang , Jiang Jiheng , Qiao Ying , et al . A review on gene-ralized inertia analysis and optimization of new power systems [J]. Proceedings of the CSEE , 2023 , 43 ( 5 ): 1754 - 1775 .
Mi Yang , Wang Peilin , Zhou Jie , et al . Energy storage capacity configuration strategy based on partitioned inertia estimation of power system [J]. Electric Power Automation Equipment , 2024 , 44 ( 7 ): 13 - 20 .
Zhang Wuqi , Wen Yunfeng , Chi Fangde , et al . Research framework and prospect on power system inertia estimation [J]. Pro-ceedings of the CSEE , 2021 , 41 ( 20 ): 6842 - 6855 .
Li Shichun , Song Qiushuang , Xue Zhenyao , et al . Inertia estimation of new energy power system with virtual inertia response of wind power [J]. Electric Power Engineering Technology , 2023 , 42 ( 2 ): 84 - 93 .
Liu M Y , Chen J R , Milano F . On-line inertia estimation for synchronous and non-synchronous devices [J]. IEEE Transac-tions on Power Systems , 2021 , 36 ( 3 ): 2693 - 2701 .
Wang Bo , Wang Yu , Zhang Song , et al . Regional inertia estimation method for power system based on random data-driven subspace dynamic mode decomposition [J]. Automation of Elec-tric Power Systems , 2024 , 48 ( 10 ): 78 - 86 .
Wang B , Yang D Y , Cai G W , et al . Online inertia estimation using electromechanical oscillation modal extracted from syn-chronized ambient data [J]. Journal of Modern Power Systems and Clean Energy , 2022 , 10 ( 1 ): 241 - 244 .
Ma Yanfeng , Li Jinyuan , Wang Zijian , et al . Assessment me-thod of regional equivalent inertia of new energy power system based on measured data [J]. Transactions of China Electrotechnical Society , 2024 , 39 ( 17 ): 5406 - 5421 .
Bi T S , Liu J H , Wang C . Online estimation of area-level inertia considering inter-area equivalent frequency dynamics [J]. IEEE Transactions on Power Systems , 2025 , 40 ( 1 ): 57 - 72 .
Liu Fanglei , Xu Guoyi , Wang Fan , et al . Assessment method of system partition inertia based on differential calculation me-thod [J]. Automation of Electric Power Systems , 2020 , 44 ( 20 ): 46 - 53 .
Best R J , Brogan P V , Morrow D J . Power system inertia esti-mation using HVDC power perturbations [J]. IEEE Transac-tions on Power Systems , 2021 , 36 ( 3 ): 1890 - 1899 .
An Jun , Sheng Shuai , Zhou Yibo , et al . Evaluation of equivalent virtual inertia of wind farm based on measured data [J]. Power System Technology , 2023 , 47 ( 5 ): 1819 - 1827 .
Tan B D , Zhao J B . Data-driven time-varying inertia estima-tion of inverter-based resources [J]. IEEE Transactions on Po-wer Systems , 2023 , 38 ( 2 ): 1795 - 1798 .
Tan B D , Zhao J B . Data-driven adaptive unscented Kalman filter for time-varying inertia and damping estimation of utility-scale IBRs considering current limiter [J]. IEEE Transactions on Power Systems , 2024 , 39 ( 6 ): 7331 - 7345 .
Mazidi M , McKelvey T , Chen P Y . A pure data-driven me-thod for online inertia estimation in power systems using local rational model approach [J]. IEEE Transactions on Industry Applications , 2023 , 59 ( 5 ): 5506 - 5516 .
Yang Lingrui , Guo Cheng , Guo Zhen , et al . Inertia estimation method of power system based on total variation regularization [J]. Electric Power Automation Equipment , 2026 , 46 ( 3 ): 178 - 185 .
Ba Wenlan , Wen Yunfeng , Ye Xi , et al . Probability prediction method of equivalent inertia for high wind power penetration grid [J]. Electric Power Automation Equipment , 2023 , 43 ( 3 ): 124 - 130,165 .
Q/GDW 1131 — 2014 电力系统实时动态监测系统技术规范 [S].
Q/GDW 1131 — 2014 Technology specifications of power system real time dynamic monitoring system [S].
IEC/IEEE 60255-118-1 Measuring relays and protection equipment part 118-1:synchrophasor for power systems-measu-rements [S].
GB/T 26862 — 2011 电力系统同步相量测量装置检测规范 [S].
GB/T 26862 — 2011 Test specification for synchrophasor mea-surement unit for power systems [S].
Xu S D , Liu H , Bi T S . Field PMU test and calibration method-part Ⅰ:general framework and algorithms for PMU calibrator [J]. Journal of Modern Power Systems and Clean Energy , 2022 , 10 ( 6 ): 1507 - 1518 .
Xu S D , Liu H , Bi T S . A general design method for phasor estimation in different applications [J]. IEEE Transactions on Smart Grid , 2021 , 12 ( 3 ): 2307 - 2319 .
Radulović M , Zečević Ž , Krstajić B . Dynamic phasor estimation by symmetric Taylor weighted least square filter [J]. IEEE Transactions on Power Delivery , 2020 , 35 ( 2 ): 828 - 836 .
GB/T 26865.2 — 2011 电力系统实时动态监测系统 第2部分:数据传输协议 [S].
GB/T 26865.2 — 2011 Real-time dynamic monitoring systems of power system-part 2:protocols for data transferring [S].
Grando F L , Lazzaretti A E , Denardin G W , et al . A synchro-phasor test platform for development and assessment of phasor measurement units [J]. IEEE Transactions on Industry Appli-cations , 2018 , 54 ( 4 ): 3122 - 3131 .