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| 直驱永磁同步风电机组不对称故障穿越的研究 | |
| 引用本文： | 杨晓萍,段先锋,钟彦儒. 直驱永磁同步风电机组不对称故障穿越的研究[J]. 电机与控制学报, 2010, 14(2) |
| 作者姓名： | 杨晓萍 段先锋 钟彦儒 |
| 作者单位： | 1. 西安理工大学,水利水电学院,陕西,西安,710048 2. 西安电力高等专科学校,电力工程系,陕西,西安,710032 3. 西安理工大学,自动化学院,陕西,西安,710048 |
| 基金项目： | 国家自然科学基金资助项目(90410019) |
| 摘 要： | 分析电网发生不对称故障对直驱永磁风力发电机组(D-PMSG)的影响,研究其控制策略,以提高其不对称故障穿越的能力。把电网电压实时引入机侧整流器参考功率的计算中,提出了按照电网正序电压和其额定电压的比减小发电机输出功率的控制策略。建立了经背靠背双PWM变流器并网的D-PMSG仿真模型。机侧整流器控制内环采用电流前馈控制,外环采用功率环控制发电机输出功率。网侧逆变器控制内环采用电流前馈控制,并控制负序电流为零,外环采用电压环稳定直流电压。仿真结果表明,在不对称故障时,这种策略保持了发电机功率平衡和变流器功率平衡,限制了直流电压的升高,保持了逆变器三相电流对称,实现了机组不对称故障穿越。 |
| 关 键 词： | 直驱式风电机组 永磁同步发电机 不对称故障穿越 瞬时对称分量法 |
Asymmetrical faults ride-through of directly driven wind turbine with permanent magnet synchronous generator |
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| YANG Xiao-ping,DUAN Xian-feng,ZHONG Yan-ru. Asymmetrical faults ride-through of directly driven wind turbine with permanent magnet synchronous generator[J]. Electric Machines and Control, 2010, 14(2) | |
| Authors: | YANG Xiao-ping DUAN Xian-feng ZHONG Yan-ru |
| Affiliation: | 1.Institute of Water Resource and Hydro-electric Engineering;Xi'an University of Technology;Xi'an 710048;China;2.Department of Electrical Engineering;Xi'an Electrical Power College;Xi'an 710032;3.Institute of Automation Engineering;China |
| Abstract: | The control strategy for directly driven wind turbine with permanent magnet synchronous generator(D-PMSG)was investigated to enhance its capability of faults ride through(FRT).The positive and negative sequence components were detected by using instantaneous symmetrical components method on grid voltage.Based on the analysis of the effect on D-PMSG of grid asymmetrical faults,the grid positive sequence voltage was introduced to the calculation of gen-side rectifier reference power.The control strategy was p... |
| Keywords: | Directly driven wind turbine permanent magnet synchronous generator asymmetrical fault ride through instantaneous symmetrical components |
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