Frequency Coordinated Control Strategy for an HVDC Sending-End System with Wind Power Integration Based on Fuzzy Logic Control

Yuhong Wang, Jie Zhu, Qi Zeng, Zongsheng Zheng, Guangyuan Yu and Aihui Yin
Additional contact information
Yuhong Wang: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Jie Zhu: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Qi Zeng: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Zongsheng Zheng: College of Electrical Engineering, Sichuan University, Chengdu 610065, China
Guangyuan Yu: Jinan Power Supply Company of State Grid Shandong Electric Power Co., Ltd., Jinan 250000, China
Aihui Yin: Jinan Power Supply Company of State Grid Shandong Electric Power Co., Ltd., Jinan 250000, China

Energies, 2021, vol. 14, issue 19, 1-25

Abstract: Under the background of high wind power permeability, the frequency regulation capability of high voltage direct current (HVDC) sending-end system tends to deteriorate. For this reason, this paper regards the wind farm (WF) and HVDC as a combined frequency regulation system, and a fuzzy-based coordinated control strategy is proposed for the cooperation of HVDC and WF to participate in frequency regulation. First of all, at a system level, in order to realize the dynamic cooperation of the WF and the HVDC to participate in frequency regulation, two fuzzy logic controllers (FLCs) are designed to determine the total power support of the combined system and the participation coefficient of the WF in the frequency regulation according to the frequency characteristics of the sending-end system and the operation state of the WF, respectively. Secondly, at the WF level, considering the rotating kinetic energy and capacity of the wind turbines (WTs), a power allocation strategy is proposed to maximize the utilization of the frequency regulation capacity of the grid-connected WTs in WF. Finally, based on the fast power regulation of HVDC, an active secondary frequency drop (SFD) suppression strategy is proposed to avoid the possible SFD caused by the rotor speed recovery of WTs. The simulation results show that the proposed strategy can make full use of the frequency regulation ability of the WF and HVDC, and can effectively improve the frequency characteristics of the HVDC sending-end system.

Keywords: HVDC; wind energy; frequency response; frequency coordinated control; fuzzy logic (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/19/6095/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/19/6095/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:19:p:6095-:d:642391

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().