| 引用本文: | 王一翔,孙士涛,程鹏,马静,贾利民.不平衡电压条件下双馈感应发电机混合直接功率控制策略[J].电力自动化设备,2022,42(6): |
| WANG Yixiang,SUN Shitao,CHENG Peng,MA Jing,JIA Limin.Hybrid direct power control strategy of doubly-fed induction generator under unbalanced voltage conditions[J].Electric Power Automation Equipment,2022,42(6): |
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| 摘要: |
| 提出了一种适用于不平衡电压条件下双馈感应发电机的混合直接功率控制(H-DPC)策略。首先，在静止坐标系下构建定子有功功率和无功功率的调制电压，可在无锁相环的条件下实现功率无差跟踪控制。然后，将拓展有功功率和无功功率引入控制系统，并结合常规有功功率和无功功率，构造混合功率反馈量，在不平衡电压条件下实现恒定的有功功率和无功功率以及三相平衡的定子电流运行控制目标。该方法无需对电压、电流进行相序分离与提取，简化了控制系统的实施。最后，硬件在环实验结果验证了所提H-DPC策略的有效性。 |
| 关键词: 混合直接功率控制 双馈感应发电机 拓展功率理论 不平衡电压 |
| DOI：10.16081/j.epae.202204004 |
| 分类号:TM315 |
| 基金项目:国家自然科学基金资助项目(51777070) |
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| Hybrid direct power control strategy of doubly-fed induction generator under unbalanced voltage conditions |
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WANG Yixiang1, SUN Shitao2, CHENG Peng1, MA Jing1, JIA Limin1,3
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1.China Institute of Energy and Transport Integrated Development, North China Electric Power University, Beijing 102206, China;2.North China Electric Power Research Institute Co.,Ltd.,Beijing 100045, China;3.State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing 100044, China
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| Abstract: |
| A H-DPC(Hybrid Direct Power Control) strategy of doubly-fed induction generator under unba-lanced voltage conditions is proposed. Firstly, the modulated voltages of stator active power and reactive power are constructed in the stationary reference frame, which can realize the power no-difference tracking control without phase locked loop. Then, the extended active power and reactive power are introduced into the control system, and combined with the conventional active power and reactive power, the hybrid power feedback is constructed to realize the operation control objectives of constant active power, constant reactive power and three-phase balanced stator current under unbalanced voltage conditions. This method does not need phase separation and extraction of voltage and current, which simplifies the implementation of the control system. Finally, the results of hardware-in-the-loop experiment verify the effectiveness of the proposed H-DPC strategy. |
| Key words: hybrid direct power control doubly-fed induction generator extended power theory unbalanced voltage |
