Grid Simulator With Phase-Amplitude Compensation

This paper proposes a grid simulator with Phase-Amplitude Compensation (PAC). The system allows independent and flexible adjustment of specific harmonic controller parameters to simulate abnormal grid conditions (e.g., short-circuit faults, high harmonic contamination, and sudden frequency changes)....

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Bibliographic Details
Published in:IEEE transactions on industry applications 2024-05, Vol.60 (3), p.4201-4212
Main Authors: Chang, Yun-Hsiang, Wu, Tsai-Fu, Chiu, Jui-Yang, Hung, Chien-Chih
Format: Article
Language:English
Subjects:
3Φ4W voltage converter
Amplitudes
Compensation
Control methods
Controllers
Frequency control
Harmonic analysis
Harmonic control
Inductance
phase-amplitude compensation (PAC)
Picture archiving and communication systems
Power grids
Power harmonic filters
Resonant frequencies
Short circuits
Tracking errors
Voltage control
wide-inductance drop
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Summary:This paper proposes a grid simulator with Phase-Amplitude Compensation (PAC). The system allows independent and flexible adjustment of specific harmonic controller parameters to simulate abnormal grid conditions (e.g., short-circuit faults, high harmonic contamination, and sudden frequency changes). With the proposed phase and amplitude compensation loops, the tracking error can be effectively reduced not only in the control of the fundamental frequency components, but in the high-frequency harmonic components. Compared with the conventional grid simulator, it can more flexibly adjust the fundamental and harmonic components of the output voltages. With the proposed method, users can modularly add fundamental and harmonic controllers to the system according to the required needs, independently control the required voltage harmonics, and still simulate common power grid fault situations. Moreover, when designing a harmonic controller, it is sufficient to design it for low-frequency signals, which greatly reduces the complexity. Finally, the proposed control method is validated by measurements of different abnormal power-grid simulations.
ISSN:0093-9994
1939-9367
DOI:10.1109/TIA.2024.3371430