Revealing the Relationship Between Load Aggregation and the Percentage of the Dynamic Component with Field Ambient Signals

Ying Wang; Chao Lu; Peixuan Wu; Xinran Zhang; Yinsheng Su; He Huang

doi:10.17775/CSEEJPES.2022.01250

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Revealing the Relationship Between Load Aggregation and the Percentage of the Dynamic Component with Field Ambient Signals

Regular Papers | 更新时间：2026-10-10

- Revealing the Relationship Between Load Aggregation and the Percentage of the Dynamic Component with Field Ambient Signals
- CSEE Journal of Power and Energy Systems Vol. 12, Issue 5, Pages: 2394-2403(2026)
- 作者机构：
  
  1. State Key Laboratory of Control and Simulation of Power System and Generation Equipment, Tsinghua University,Beijing,China
  2. School of Automation Science and Electrical Engineering, Beihang University,Beijing,China
  3. Power Dispatching & Communication Center of China Southern Power Grid,Guangzhou,China
- 作者简介：
- 基金信息：
- DOI：10.17775/CSEEJPES.2022.01250
  CLC：
- Published：01 September 2026
- 稿件说明：
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Ying Wang, Chao Lu, Peixuan Wu, et al. Revealing the Relationship Between Load Aggregation and the Percentage of the Dynamic Component with Field Ambient Signals[J]. CSEE Journal of Power and Energy Systems, 2026, 12(5): 2394-2403.
DOI：

Ying Wang, Chao Lu, Peixuan Wu, et al. Revealing the Relationship Between Load Aggregation and the Percentage of the Dynamic Component with Field Ambient Signals[J]. CSEE Journal of Power and Energy Systems, 2026, 12(5): 2394-2403. DOI： 10.17775/CSEEJPES.2022.01250.

摘要

Abstract

Using different percentages of the dynamic component (PoDCs) for aggregated power loads has different effects on power system analysis. Meanwhile

applying fixed PoDCs in simulation systems cannot represent the time-varying and distributed characteristics of power loads. Based on the development of phasor measurement units (PMUs) and the recently proposed ambient signal-based load model parameter identification method

the PoDCs identified with field ambient signals are analyzed to point out the deficiency of the fixed percentages in this paper. By taking both transmission impedance and branch paralleling into account

the relationship between load aggregation of multi-voltage levels and the PoDC of power loads is demonstrated through equivalent calculation and simulation validation to understand the identified PoDCs better. Eventually

the identification results of the field PMU measurements from China Southern Power Grid reveal that it is necessary to reconsider the simulation settings of the PoDC for the equivalent loads connected in 220/110 kV instead of applying fixed values at present.

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references

23. [2020, Apr. 01]. Federico Milano's website [Online]. Available: http://faraday1.ucd.ie/psat.html

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