摘要
文章提出一种滞环转子位置观测器获得转子位置角,实现双馈感应发电机(DFIG)无速度传感器条件下的矢量控制。通过调节实际转子电流ir与估算转子电流ir的相位偏差来估算转子位置,不需要调节控制器参数,且观测精度对电机参数的变化不敏感;将设计的转子位置观测器用于DPC控制策略,并用实验验证了所提方案的正确性。
A hysteresis rotor position detector was presented to obtain rotor position of doubly-fed induction generator（ DFIG） in order to implement sensorless vector control on DFIG. The detector estimated rotor position and speed by adjusting the phase deviation between actual rotor current and estimated rotor current. It does not need parameter determination for the controllers and shows a considerable independence of motor parameters. The detector structure is relatively simple and easy to achieve. The observer is applied to the direct power control based on space vector modulation to verify feasibility. The experiment results show that the control strategy is feasible and efficient.
出处
《邵阳学院学报（自然科学版）》
2017年第4期44-49,共6页
Journal of Shaoyang University：Natural Science Edition
基金
国家自然科学青年基金项目(51407124)
河南省高等学校重点科研项目(16A470012)
关键词
双馈感应发电机
滞环转子位置观测器
无速度传感器
直接功率控制
doubly - fed induction generator
hysteresis rotor position detector
speed sensorless
direct power control
