Control Strategy and Application of Voltage Sag Compensation Based on UPQC

In order to solve the problem of voltage sags in low-voltage power grid, the control strategy and application of Unified Power Quality Controller (UPQC) are given. Based on the main circuit of UPQC, the method of Second-Order Generalized Integral (SOGI) is used to detect the voltage drop quickly and...

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Bibliographic Details
Published in:Journal of physics. Conference series 2020-06, Vol.1549 (5), p.52054
Main Authors: Jiang, Xiangdong, Wang, Ling, Zhao, Qingyuan, Su, Zongyu, Li, Tao
Format: Article
Language:English
Subjects:
Algorithms
Circuits
Control methods
Controllers
Voltage drop
Voltage sags
Waveforms
Online Access:Get full text
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Summary:In order to solve the problem of voltage sags in low-voltage power grid, the control strategy and application of Unified Power Quality Controller (UPQC) are given. Based on the main circuit of UPQC, the method of Second-Order Generalized Integral (SOGI) is used to detect the voltage drop quickly and accurately, and the direct control method is used to compensate the voltage drop. The method is simulated by PSCAD/EMTDC, and the theoretical results are verified. TMS320F28335 controller is used to realize the algorithm, and a physical platform is built. The test waveform verifies the feasibility of the method.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1549/5/052054