We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
大规模风电经LCC-HVDC送出的送端电网 频率协同控制策略.
- Authors
陈厚合; 于浩田; 刘先超; 姜 涛; 李国庆
- Abstract
In view of the severe high-frequency problems faced by the sending-end power grid with largescale wind power sent out by the line commutated converter based high voltage direct current (LCCHVDC), and fully digging the potential frequency regulation capability of wind power, a cooperative control strategy of wind power and DC frequency limit controller (FLC) participating in the frequency regulation is proposed. The response characteristics of DC FLC participating in the sending-end power grid frequency regulation is explored, the droop relations between the frequency of the sending-end power grid and the power of wind turbines is described, a primary frequency regulation control method combining variable speed and variable pitch angle of wind turbines is designed. A comprehensive frequency response model including primary frequency regulation of conventional turbines, droop control of wind turbines and DC FLC is proposed. Combined with the frequency stability requirements of the power grid, a sensitivity analysis is carried out to investigate the frequency regulation parameters of wind power and DC FLC, and the frequency coordination control strategy involving wind power and DC FLC is designed. The simulative results show that the proposed frequency cooperative control strategy can reduce the risk of high frequency generator tripping and DC overload operation, and improve the sending-end power grid frequency stability.
- Subjects
ELECTRIC power distribution grids; WIND turbines; FREQUENCY stability; HIGH voltages; WIND power; SENSITIVITY analysis; MICROGRIDS
- Publication
Electric Power Automation Equipment / Dianli Zidonghua Shebei, 2023, Vol 43, Issue 9, p210
- ISSN
1006-6047
- Publication type
Article
- DOI
10.16081/j.epae.202307025