Combined constant speed control method for a wind generator equipped with hydraulic energy storage
Han, Xiaoxia1; Wei, Liejiang2,3; Feng, Yongbao1; Wang, Gang2,3; Liu, Zengguang2,3; Xie, Jian1
2019-12-18
发表期刊WIND ENERGY
ISSN1095-4244
卷号23期号:3页码:486-500
摘要

A wind generator equipped with hydraulic energy storage (WG-HES) uses hydraulic transmission systems instead of gearbox transmissions, thus eliminating high-power converters and reducing the tower-top cabin weight. When there is no wind or the wind speed is extremely low, the pressured oil released by accumulators is used to drive a motor to operate at a constant speed, thereby generating constant-frequency power. However, few studies have examined the constant speed control characteristics for generating electricity using only an accumulator group. In this study, a combined constant speed (CCS) proportional-integral-derivative (PID) control method based on "variable displacement and throttling" is proposed, which includes two closed loops and one regulating loop. First, a simulation model of the CCS PID control method for a variable motor was established in the Simcenter Amesim program. The influence of different PID parameters on the anti-interference ability of the constant speed control of the motor was analyzed under a given load step. Then, we obtained the range of control parameter values and a set of optimal values. Second, the effectiveness of the CCS control method and the accuracy of the simulation results were verified on a 600-kW WG-HES system prototype. The results verified that the CCS control method has good anti-interference ability and can meet the requirements of constant speed control for a variable motor under the best PID parameters. These results can provide a basis for developing control strategies for WG-HESs when there is no wind or at low wind speeds.

关键词accumulator-controlled hydraulic motor anti-interference combined constant speed control hydraulic energy storage
DOI10.1002/we.2420
收录类别SCI ; SCIE ; EI
语种英语
资助项目Gansu Provincial Natural Science Foundation of China[18JR3RA155] ; Gansu Provincial Science and Technology Major Project of China[17ZD2GA010] ; National Natural Science Fund Project of China[51765033]
WOS研究方向Energy & Fuels ; Engineering
WOS类目Energy & Fuels ; Engineering, Mechanical
WOS记录号WOS:000503089500001
出版者WILEY
EI入藏号20195207903045
EI主题词Hydraulic energy storage
EI分类号443.1 Atmospheric Properties - 454 Environmental Engineering - 602.2 Mechanical Transmissions - 632.2 Hydraulic Equipment and Machinery - 706.1.1 Electric Power Transmission - 731.1 Control Systems - 731.3 Specific Variables Control - 732.1 Control Equipment
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符https://ir.lut.edu.cn/handle/2XXMBERH/76489
专题能源与动力工程学院
通讯作者Wei, Liejiang
作者单位1.Xian Res Inst Hitech, Xian 710025, Shaanxi, Peoples R China;
2.Lanzhou Univ Technol, Energy & Power Engn Coll, Lanzhou 730050, Gansu, Peoples R China;
3.Key Lab Fluid Machinery & Syst, Lanzhou 730050, Gansu, Peoples R China
通讯作者单位能源与动力工程学院
推荐引用方式
GB/T 7714
Han, Xiaoxia,Wei, Liejiang,Feng, Yongbao,et al. Combined constant speed control method for a wind generator equipped with hydraulic energy storage[J]. WIND ENERGY,2019,23(3):486-500.
APA Han, Xiaoxia,Wei, Liejiang,Feng, Yongbao,Wang, Gang,Liu, Zengguang,&Xie, Jian.(2019).Combined constant speed control method for a wind generator equipped with hydraulic energy storage.WIND ENERGY,23(3),486-500.
MLA Han, Xiaoxia,et al."Combined constant speed control method for a wind generator equipped with hydraulic energy storage".WIND ENERGY 23.3(2019):486-500.
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