Constant frequency control of  energy-storage  power generation of wind turbine set with hydraulic energy regulation

Abstract

Abstract: In order to eliminate the impact of wind fluctuation and intermittence on the smooth operation of power grid and realize the storage and regulation of the energy captured by wind wheel, on energy storage system is introduced into the closed-loop hydraulic system with pump-controlled motor in hydropower-type wind turbine set. A mathematical model of motor rotation driven independently by stored energy in energy storage system is established by using AMESim software in the case of still wind. Aimed at the composition and working principle of such a novel hydraulic system of hydropower-type wind turbine, a double closed-loop control strategy of motor with constant pressure difference plus constant speed is proposed to ensure that the power generator with always operate at synchronous speed in the case of power generation with stored energy. The response curves and changing trends of various system variables are compared and analyzed under condition of single closed-loop with constant pressure difference and double closed-loop control with constant pressure difference plus constant speed. The simulation result shows that the designed double closed-loop motor with constant speed control strategy will be able to stabilize the motor speed at 1 500 r/min, meeting the requirement of the output power frequency in case of independent power generation with stored energy.

Key words: hydropower-type wind turbine, energy regulation, energy storage system, constant frequency control, AMESim

CLC Number:

TH137

LIU Zeng-guang, YANG Guo-lai, WEI Lie-jiangZHAO Yu-yang, WANG Gang, YUE Da-ling. Constant frequency control of energy-storage power generation of wind turbine set with hydraulic energy regulation[J]. Journal of Lanzhou University of Technology, 2020, 46(1): 48-52.

References

[1] 孔祥东,艾超,王静.液压型风力发电机组主传动控制系统综述 [J].液压与气动,2013(1):1-7.
[2] 赵克刚,柳文斌.基于液压复合传动的变速恒频风力发电系统研究 [J].液压与气动,2008(3):53-56.
[3] 陈建业,周强.液压传动在风力发电系统中的应用 [J].移动电源与车辆,2011(1):30-32.
[4] 艾超.液压型风力发电机组转速控制和功率控制研究 [D].秦皇岛:燕山大学,2012.
[5] 韩利坤.基于能量液压传递的风力机“变速恒频”技术研究 [D].杭州:浙江大学,2012.
[6] 王存堂,朱宏,杨明泽,等.风电系统的液压增速传动及储能技术 [J].流体传动与控制,2012(5):1-4.
[7] 艾超,孔祥东,陈文婷,等.液压型风力发电机组主传动系统稳速控制研究 [J].太阳能学报,2014,35(9):1757-1763.
[8] 艾超,孔祥东,闫桂山,等.液压型风力发电机组低电压穿越过程主传动系统瞬态特性研究 [J].机电工程,2014,31(9):1127-1131.
[9] 孔祥东,艾超,闫桂山,等.液压型风力发电机组低电压穿越控制方法研究 [J].中国机械工程,2014,25(16):2137-2143.
[10] 李飞龙,林勇刚,李伟,等.风能静液压传动控制技术 [J].吉林大学学报(工学版),2014,44(6):1664-1668.
[11] 林勇刚,王贤成,王菁,等.基于液压传动的离网型风力机“变速恒频”控制研究 [J].太阳能学报,2014,35(10):1965-1970.
[12] LIN Y G,TU L,LIU H W,et al.Hybrid power transmission technology in a wind turbine generation system [J].IEEE/ASME Transactions on Mechatronics,2015,20(3):1218-1225.
[13] 艾超,陈立娟,孔祥东,等.液压型风力发电机组功率追踪方法研究 [J].热能动力工程,2015,30(6):946-952.
[14] 艾超,陈文婷,孔祥东,等.基于反馈线性化的液压型风力发电机组最佳功率追踪控制 [J].控制理论与应用,2015,32(6):778-786.
[15] 艾超,孔祥东,闫桂山,等.液压型风力发电机组最优功率追踪控制方法研究 [J].动力工程学报,2015,35(2):126-133.
[16] 艾超,闫桂山,孔祥东,等.液压型风力发电机组最佳功率追踪控制研究 [J].热能动力工程,2015,30(1):138-144.
[17] 艾超,陈立娟,孔祥东,等.基于有功功率控制的液压型风力发电机组最佳功率追踪策略关键问题研究 [J].机械工程学报,2017,53(2):192-198.
[18] 李仁年,李银然,王秀勇,等.风力机翼型的气动模型及数值计算 [J].兰州理工大学学报,2010,36(3):65-68.
[19] LIU Z G,YANG G L,WEI L J,et al.Variable speed and constant frequency control of hydraulic wind turbine with energy storage system [J].Advances in Mechanical Engineering,2017,9(8):1-10.

Constant frequency control of energy-storage power generation of wind turbine set with hydraulic energy regulation

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