LAPSE:2019.1512
Published Article
LAPSE:2019.1512
Frequency-Adaptive Modified Comb-Filter-Based Phase-Locked Loop for a Doubly-Fed Adjustable-Speed Pumped-Storage Hydropower Plant under Distorted Grid Conditions
Wei Luo, Jianguo Jiang, He Liu
December 10, 2019
The control system of a doubly-fed adjustable-speed pumped-storage hydropower plant needs phase-locked loops (PLLs) to obtain the phase angle of grid voltage. The main drawback of a comb-filter-based phase-locked loop (CF-PLL) is the slow dynamic response. This paper presents a modified comb-filter-based phase-locked loop (MCF-PLL) by improving the pole-zero pattern of the comb filter, and gives the parameters’ setting method of the controller, based on the discrete model of MCF-PLL. In order to improve the disturbance resistibility of MCF-PLL when the power grid’s frequency changes, this paper proposes a frequency-adaptive modified, comb-filter-based, phase-locked loop (FAMCF-PLL) and its digital implementation scheme. Experimental results show that FAMCF-PLL has good steady-state and dynamic performance under distorted grid conditions. Furthermore, FAMCF-PLL can determine the phase angle of the grid voltage, which is locked when it is applied to a doubly-fed adjustable-speed pumped-storage hydropower experimental platform.
Keywords
adjustable speed pumped storage hydropower plant, distorted grid conditions, FAMCF-PLL, versa module eurocard (VME) bus
Suggested Citation
Luo W, Jiang J, Liu H. Frequency-Adaptive Modified Comb-Filter-Based Phase-Locked Loop for a Doubly-Fed Adjustable-Speed Pumped-Storage Hydropower Plant under Distorted Grid Conditions. (2019). LAPSE:2019.1512
Author Affiliations
Luo W: Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Department of Electrical Engineering, Shanghai Jiao Tong University), Shanghai 200030, China
Jiang J: Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Department of Electrical Engineering, Shanghai Jiao Tong University), Shanghai 200030, China
Liu H: Key Laboratory of Control of Power Transmission and Conversion, Ministry of Education (Department of Electrical Engineering, Shanghai Jiao Tong University), Shanghai 200030, China
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Journal Name
Energies
Volume
10
Issue
6
Article Number
E737
Year
2017
Publication Date
2017-05-23
Published Version
ISSN
1996-1073
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PII: en10060737, Publication Type: Journal Article
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LAPSE:2019.1512
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doi:10.3390/en10060737
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Dec 10, 2019
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Calvin Tsay
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