Power Smoothing of a Variable-speed Wind Turbine Generator

被引：0
作者：
Dejian Yang
Yong Cheol Kang
Jung-Wook Park
Young Il Lee
Seung-Ho Song
机构：
[1] Nantong University,School of Electrical Engineering
[2] Yonsei University,School of Electronic and Electrical Engineering
[3] Seoul National University of Science and Technology,Department of Electrical and Information Engineering
[4] Kwangwoon University,Department of Electrical Engineering
来源：
International Journal of Control, Automation and Systems | 2021年 / 19卷
关键词：
Control gain; energy-releasing capability; energy-storing capability; over-frequency section; power smoothing; under-frequency section; variable-speed wind turbine generator;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper presents a power-smoothing scheme of a variable-speed wind turbine generator (VSWTG) that employs separate control gains for the over-frequency section (OFS) and under-frequency section (UFS). In the proposed scheme, an additional proportional control loop based on the system frequency deviation operating in conjunction with maximum power point tracking operation is used. In the OFS, to improve the energy-storing capability, the scheme suggests the gain of the frequency deviation control loop, which is set to be monotonously decreasing with the rotor speed while being significantly larger than that in the UFS. In the UFS, to improve the energy-releasing capability while preventing over-deceleration, the gain of the frequency deviation control loop is set to be a linear function of the rotor speed. The simulation results under continuously varying wind speeds with different wind patterns and wind speeds clearly demonstrate that the proposed scheme significantly mitigates the output power fluctuations of a VSWTG. The proposed scheme keeps the frequency within a narrow range, thereby reducing the required primary frequency control reserve for regulating the frequency under normal operations.
引用
收藏
页码：11 / 19
页数：8
相关论文
共 40 条
  • [1] Lalor G(2005)Frequency control and wind turbine technologies IEEE Trans. Power Syst. 20 1905-1913
  • [2] Mullane A(2012)Frequency control in autonomous power systems with high wind power penetration IEEE Trans. Sustain. Energy 3 189-199
  • [3] O’Malley M(2013)Wavelet-based capacity configuration and coordinated control of hybrid energy storage system for smoothing out wind farm fluctuations IEEE Trans. Power Syst. 28 1363-1372
  • [4] Margaris I D(2014)Control of a flywheel energy storage system for power smoothing in wind power plants IEEE Trans. Energy Convers. 29 204-214
  • [5] Papathanassiou S A(2013)A battery energy storage system dual-layer control strategy for mitigating wind farm fluctuations IEEE Trans. Power Syst. 28 3263-3273
  • [6] Hatziargyriou N D(2015)A power smoothing system based on supercapacitors for renewable distributed generation IEEE Trans. Ind. Electron. 62 343-350
  • [7] Hansen A D(2013)Frequency controlling wind power modeling of control strategies IEEE Trans. Sustain. Energy 4 954-959
  • [8] Sørensen P(2017)Power smoothing of a variable-speed wind turbine generator in association with the rotor speed-dependent gain IEEE Trans. Sustain. Energy 8 990-999
  • [9] Jiang Q(2013)A review of output power smoothing methods for wind energy conversion systems Renew. Sustain. Energy Rev. 26 135-134
  • [10] Hong H(1973)Dynamic models for steam and hydro turbines in power system studies IEEE Trans. Power App. Syst. PAS-92 1904-1915
1234