不平衡电网电压下基于滑模变结构控制馈风电系统网侧变流器控制策略

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (956 KB)
输出: BibTeX | EndNote (RIS)

摘要在两相静止坐标系（αβ）下,提出了一种基于滑模变结构的双馈风电系统网侧变流器控制策略,该控制策略采用双环结构,内环为功率环,采用基于滑模变结构的直接功率控制方法,控制结构简单,动态性能良好;外环采用滑模变结构控制来稳定直流电压,动态响应快、鲁棒性强;通过分析不平衡电网电压下网侧变流器的数学模型,证明了本控制策略无需改变系统控制结构,仅需改变功率给定量即可实现网侧变换器不平衡电网电压下的各种控制目标。仿真和实验均表明基于滑模变结构的双环控制策略可在电网电压不平衡条件下实现双馈风电系统网侧变流器的有效控制,并可兼顾系统的稳态和动态性能指标。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	张迪
	魏艳君
	马利轩
	张金龙
	丁浩
	漆汉宏

关键词 ：双馈风力发电机, 网侧变换器, 滑模变结构控制, 直接功率控制, 不平衡电网电压

Abstract：An improved control strategy of grid-side converter(GSC) is presented based on sliding-mode control in two phase static coordinate. The method uses double-loop structure, direct power control based on sliding-mode control(SMC-DPC) is used in the inner-loop, and in the outer-loop a sliding mode controller was designed to improve the DC-link voltage stability. Grid-side converter models were analyzed under unbalanced grid voltage conditions. It is proved that the control objectives can be realized without changing the existing control structure under unbalanced grid voltage conditions. The controller has advantages of simple structure, high control precision, rapid response speed and strong robustness. Simulation and experiment results confirm the reliability and validity of the control strategy under unbalanced grid voltage conditions.

Key words： Doubly-fed wind generator(DFIG) sliding-mode control direct power control unbalanced grid voltage

收稿日期: 2014-09-10 出版日期: 2015-06-29

PACS:

TM46

基金资助:河北省应用基础研究计划重点基础研究（13964304D）,教育部高等学校博士学科点专项科研基金（20121333110007）和河北省自然科学基金青年基金（E2014203198）资助项目

作者简介: 张迪,男，1986年生，博士，研究方向为双馈并网风力发电系统及其控制技术。魏艳君,女，1969年生，副教授，研究方向为新能源发电与功率变换技术。

引用本文:

张迪, 魏艳君, 马利轩, 张金龙, 丁浩, 漆汉宏. 不平衡电网电压下基于滑模变结构控制馈风电系统网侧变流器控制策略[J]. 电工技术学报, 2015, 30(10): 266-275. Zhang Di, Wei Yanjun, Ma Lixuan, Zhang Jinlong, Ding Hao, Qi Hanhong. Sliding-Mode Control for Grid-Side Converters of DFIG-Based Wind- Power Generation System Under Unbalanced Grid Voltage Conditions. Transactions of China Electrotechnical Society, 2015, 30(10): 266-275.

链接本文:

https://dgjsxb.ces-transaction.com/CN/Y2015/V30/I10/266

[1] Li H, Chen Z. Overview of different wind generator systems and their comparisons[J]. IET Renewable Power Generation, 2008, 2(2): 123-138.
[2] 贺益康, 胡家兵, 徐烈. 并网双馈异步风力发电机运行控制[M]. 北京: 中国电力出版社, 2012.
[3] Roberto Cardenas, Rubén Pena, Salvador Alepuz, et al. Overview of control systems for the operation of DFIGs in wind energy applications[J]. IEEE Transa- ctions on Industrial Electronics, 2013, 60(7): 2776- 2798.
[4] 张兴, 张崇巍. PWM整流器及其控制[M]. 北京: 机械工业出版社, 2012.
[5] 孟岩峰, 胡书举, 王玲玲, 等. 电网故障条件下双馈机组运行特性分析及其协调控制[J]. 电力系统保护与控制, 2013, 41(8): 106-113. Meng Yanfeng, Hu Shuju, Wang Lingling, et al. Characteristics analysis and coordinated control of the doubly-fed wind power system under grid transient fault[J]. Power System Protection and Control, 2013, 41(8): 106-113.
[6] Hu Jiabing, He Yikang. Modeling and control of grid- connected voltage sourced converters under genera- lized unbalanced operation conditions[J]. IEEE Trans- actions on Energy Conversion, 2008, 23(3): 903-913.
[7] Hu Jiabing, He Yikang, Xu Lie, et al. Williams. Improved control of DFIG systems during network unbalance using PI-R current regulators[J]. IEEE Transactions on Industrial Electronics, 2009, 56(2): 439-451.
[8] Yao Jun, Li Hui, Liao Yong, et al. An improved control strategy of limiting the dc-link voltage fluctua- tion for a doubly fed induction wind generator[J]. IEEE Transactions on Power Electronics, 2008, 23(3): 1205-1213.
[9] Kazemi M Verij, Yazdankhah A Sadeghi, Kojabadi H Madadi. Direct power control of DFIG based on discrete space vector modulation[J]. Renewable Energy, 2010, 35(5): 1033-1042.
[10] 韩愚拙, 林明耀, 郝立, 等. 电压型PWM整流器三状态直接功率控制策略[J]. 电工技术学报, 2013, 28(5): 208-212. Han Yuzhuo, Lin Mingyao, Hao Li, et al. Triple-state direct power control sratagy of three phase Boost type PWM rectifiers[J]. Transactions of China Electrotech- nical Society, 2013, 28(5): 208-212.
[11] Zhang Yongchang, Li Zhengxi, Zhang Yingchao, et al. Performance improvement of direct power control of PWM rectifier with simple calculation[J]. IEEE Transac- tions on Power Electronics, 2013, 28(7): 3428-3437.
[12] 孙丹, 邓伦杰, 孙士涛, 等. 双馈异步风力发电机优化预测直接功率控制[J]. 电工技术学报, 2013, 28(11): 78-85. Sun Dan, Deng Lunjie, Sun Shitao, et al. Modified predictive direct power control of doubly fed induc- tion generators[J]. Transactions of China Electrotech- nical Society, 2013, 28(11): 78-85.
[13] Gonzalo Abad, Miguel Angel Rodriguez, Grzegorz Iwanski, et al. Direct power control of doubly- fed-induction-generator-based wind turbines under unbalanced grid voltage[J]. IEEE Transactions on Power Electronics, 2010, 25(2): 442-452.
[14] 年珩, 程鹏. 电网电压不平衡时PWM整流器的谐振直接功率控制策略[J]. 电工技术学报, 2013, 28(11): 86-94. Nian Heng, Cheng Peng. Resonant based direct power control strategy for PWM rectifier under unbalanced grid voltage condition[J]. Transactions of China Elec- trotechnical Society, 2013, 28(11): 86-94.
[15] Xiao Lei, Huang Shoudao, Lu Kaiyuan. DC-bus voltage control of grid-connected voltage source converter by using space vector modulated direct power control under unbalanced network conditions[J]. IET Power Electronics, 2013, 6(5): 925-934.
[16] 尚磊, 孙丹, 胡家兵, 等. 三相电压型并网逆变器滑模变结构直接功率控制[J]. 电力系统自动化, 2010, 34(14): 79-83. Shang Lei, Sun Dan, Hu Jiabing, et al. Sliding mode variable structure based direct power control of three- phase grid-connected voltage source inverters[J]. Auto- mation of Electric Power Systcms, 2010, 34(14): 79-83.
[17] Jiabing Hu, Lei Shang, Yikang He, et al. Direct active and reactive power regulation of grid-connected DC/ AC converters using sliding mode control approach[J]. IEEE Transactions on Power Electronics, 2011, 26(1): 210-222.
[18] Martinez M Itsaso, Tapia Gerardo, Susperregui Ana, et al. Sliding-mode control for DFIG rotor- and grid- side converters under unbalanced and harmonically distorted grid voltage[J]. IEEE Transactions on Energy Conversion, 2012, 27(2): 328-339.