Study on the Fast Transient Process of Primary Equipment Operation in UHV Fixed Series Capacitors Based on PEEC
Baojiang Tian1, Kai Xu2, Yingying Wang3
1State Grid Henan Electric Power Company, Zhengzhou 450052, China.
Sensors (Basel, Switzerland)
|August 14, 2025
Summary
This study introduces a fast transient simulation method using Partial Element Equivalent Circuit (PEEC) to analyze overvoltages in Ultra-High Voltage series compensation (UHV FSC) systems. The method models equipment operations, revealing overvoltage and electromagnetic disturbance distributions for improved system design.
Area of Science:
- Electrical Engineering
- Computational Electromagnetics
- Power Systems
Background:
- Ultra-High Voltage (UHV) series compensation (FSC) systems are critical for power transmission.
- Spark gap and disconnecting switch operations can induce fast transient overvoltages and electromagnetic disturbances.
- Accurate modeling of these transient phenomena is essential for system integrity and equipment protection.
Purpose of the Study:
- To propose and validate a fast transient simulation method for UHV FSC systems.
- To model overvoltages caused by spark gap and disconnecting switch operations.
- To analyze the electromagnetic disturbance on secondary systems within UHV FSC.
Main Methods:
- Development of a multi-conductor system model for primary and secondary equipment.
- Integration of lumped component modeling for primary and secondary equipment within the multi-conductor framework.
- Application of the Partial Element Equivalent Circuit (PEEC) method for fast transient simulation.
Main Results:
- Simulation of fast transient overvoltages on primary equipment.
- Analysis of electromagnetic disturbances on secondary systems.
- Detailed insights into the distribution of overvoltages and electromagnetic disturbances along the bus, from low-voltage to high-potential platforms.
Conclusions:
- The PEEC-based simulation method effectively models fast transient overvoltages and electromagnetic disturbances in UHV FSC.
- Simulation results provide crucial data for optimizing sensor device layout and designing electromagnetic shielding for sensitive systems.
- The findings support theoretical analysis and practical design considerations for UHV FSC platforms.
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