Synchronization signal processing system of thyristor power supply based on NI CompactRIO

Li Weibin; Wu Yi; Ren Qinghua; Zheng Xue; Han Aibo

doi:10.11884/HPLPB202133.200296

Volume 33 Issue 3

Mar. 2021

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Li Weibin, Wu Yi, Ren Qinghua, et al. Synchronization signal processing system of thyristor power supply based on NI CompactRIO[J]. High Power Laser and Particle Beams, 2021, 33: 036003. doi: 10.11884/HPLPB202133.200296

Citation:

Li Weibin, Wu Yi, Ren Qinghua, et al. Synchronization signal processing system of thyristor power supply based on NI CompactRIO[J]. High Power Laser and Particle Beams, 2021, 33: 036003. doi: 10.11884/HPLPB202133.200296

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Synchronization signal processing system of thyristor power supply based on NI CompactRIO

doi: 10.11884/HPLPB202133.200296

Center for Fusion Sciences, Southwestern Institute of Physics, Chengdu 610225, China

Received Date: 2020-10-28
Rev Recd Date: 2021-01-19

Available Online: 2021-03-30

Publish Date: 2021-03-05

Abstract

Abstract

HL-2A device makes use of a pulse generator set to provide energy to the thyristor power supply, which is phase-controlled, thus the quality of the synchronization signal will directly affect the control accuracy of the power supply. The synchronization signal of the thyristor power supply in HL-2A device is taken from the synchronous transformer. The power supply mode of the pulse generator unit with rectifier load makes the synchronization signal not only have serious distortion, but also have the characteristics of a wide frequency range. Considering the characteristics of the synchronization signal, point-by-point Butterworth filter is implemented to eliminate waveform distortion, and then high quality synchronization signal is obtained by real-time calculation of frequency and phase reconstruction. Based on NI CompactRIO device, a real-time processing system for synchronization signal of thyristor phase-controlled power supply is designed. The experimental results show that the system can effectively solve the problem of serious distortion and wide-range frequency change of synchronization signal.
- thyristor power supply,
- synchronization signal,
- Butterworth filter,
- frequency tracking,
- NI CompactRIO

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References(12)

References

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