Rotating compressor surge detection using variable speed drive signals

Orkisz, Michał; Lipnicki, Piotr

doi:10.1109/speedam.2014.6871978

Cited by 5 publications

(1 citation statement)

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“…For the traditional fluid machinery, the surge detection mainly relies on the change of noise, pressure, and vibration signals. The literature pays close attention to integrating process and drive signals to detect surge, which according to measurements of an experimental compressor (Orkisz and Lipnicki, 2014). In the process of initial surge detection, the researchers use wavelet transform and empirical mode decomposition for detection.…”

Section: Introductionmentioning

confidence: 99%

Surge detection of magnetic suspension fluid machinery based on rotor axial displacement signal and normalized second-order generalized integrator-frequency locked loop with prefilter

Guan

Zhou

Jin

et al. 2022

Journal of Vibration and Control

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A surge detection method according to rotor axial displacement signal and normalized second-order generalized integrator-frequency locked loop-with prefilter (SOGI-FLL-WPF) is proposed to solve the surge detection problem of magnetic suspension fluid machinery, which has important practical significance. To improve the anti-disturbance performance of surge detection, SOGI is introduced as a prefilter. As a prefilter, SOGI can eliminate the interference in the surge signal, and normalized SOGI-FLL can estimate the amplitude and frequency of the surge signal. Normalized SOGI-FLL and prefilter are combined to form normalized SOGI-FLL-WPF. First, the disturbance transfer model between rotor axial displacement signal and pressure signal is deduced. Then, the surge is detected by normalized SOGI-FLL-WPF. This method has the merit of fast response, small computation, and good disturbance resistance without additional detection units. Finally, the test is implemented on 105 kW and 150 kW magnetic suspension blowers. The results demonstrate that the proposed method can quickly detect surge signal after the surge occurs.

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Section: Introductionmentioning

confidence: 99%