Real time frequency measurement method for DC merging unit
Wang Meng1, 2, 3, Zhang Min1, 2, 3, Lu Jun1, 2, Shen Jian1, 2, 3
1. NARI Group Corporation (State Grid Electric Power Research Institute), Nanjing 211106; 2. NARI Technology Co., Ltd, Nanjing 211106; 3. State Key Laboratory of Smart Grid Protection and Control, Nanjing 211106
Abstract:According to the real-time and accuracy requirements of the signal harmonic frequency measurement, this article analyzed the basic principles of the fixed interval sampling frequency measurement algorithm, and clarified the limitation of fixed interval sampling frequency measurement algorithem. Then, this paper proposd an improved method to solve the real-time disadvantage of existing algorithms. Finally, the implementation is verified on the DC merging unit.
王猛, 张敏, 卢俊, 沈健. 直流合并单元的实时测频方法[J]. 电气技术, 2019, 20(8): 99-102.
Wang Meng, Zhang Min, Lu Jun, Shen Jian. Real time frequency measurement method for DC merging unit. Electrical Engineering, 2019, 20(8): 99-102.