Analysis of Voltage Stability Capability of Dynamic Reactive Power Compensation Devices Supporting High Proportional New Energy Systems

doi:10.3969/j.issn.1008-0198.2024.04.004

Hunan Electric Power ›› 2024, Vol. 44 ›› Issue (4): 27-33.doi: 10.3969/j.issn.1008-0198.2024.04.004

• Invited Column:New Energy Generation and Energy Storage Technology • Previous Articles Next Articles

Analysis of Voltage Stability Capability of Dynamic Reactive Power Compensation Devices Supporting High Proportional New Energy Systems

ZHANG Ruiqi^1,2, LI Mengjiao^1,2, YANG Hongming³, ZHAO Jian³, XU Qiufei³, ZHANG Shijie³

1. State Grid Hunan Electric Power Company Limited Economic and Technological Research Institute, Changsha 410007, China;
2. Hunan Key Laboratory of Energy Internet Supply-demand and Operation, Changsha 410007, China;
3. School of Electrical and Information Engineering, Changsha University of Science and Technology, Changsha 410114, China

Received:2024-03-26 Online:2024-08-25 Published:2024-09-09

Abstract

Abstract: In response to the voltage stability issue in high proportion new energy access areas, the characteristics of new energy output gap and weak transient reactive voltage regulation ability of new energy units are first considered. Starting from the penetration rate of new energy and the power grid strength of new energy access points, and the mechanism of voltage instability in high proportion new energy access areas is revealed. Then, the dynamic reactive power output characteristics of SVC, SVG, phase-shifting camera, and distributed phase-shifting camera are elaborated, and the support capabilities of four types of reactive power compensation devices in high proportion new energy scenarios are compared and analyzed. Distributed phase-shifting cameras have more advantages in supporting reactive voltage and suppressing overvoltage/undervoltage in new energy stations. Finally, taking the Xiangnan new energy access area as the research scenario, the support effect of reactive power compensation equipment under fault conditions with the same new energy penetration rate and different new energy penetration rates is analyzed to verify the correctness of the proposed viewpoint.

Key words: high proportion of new energy, dynamic reactive power compensation equipment, voltage stability, reactive support capacity

CLC Number:

TM714.3

ZHANG Ruiqi, LI Mengjiao, YANG Hongming, ZHAO Jian, XU Qiufei, ZHANG Shijie. Analysis of Voltage Stability Capability of Dynamic Reactive Power Compensation Devices Supporting High Proportional New Energy Systems[J]. Hunan Electric Power, 2024, 44(4): 27-33.

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Analysis of Voltage Stability Capability of Dynamic Reactive Power Compensation Devices Supporting High Proportional New Energy Systems

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