US 12,066,491 B1
Device and method for detecting inter-turn electromagnetic pulse vibration wave characteristic of turbogenerator rotor winding
Yuewu Zhang, Hangzhou (CN); Kunpeng Tian, Hangzhou (CN); Qianyi Zhang, Hangzhou (CN); Weihua Zha, Hangzhou (CN); Hong Liu, Hangzhou (CN); Xiaohui Cao, Hangzhou (CN); Xueliang Wang, Hangzhou (CN); Dongbing Liu, Hangzhou (CN); Jiamin Li, Hangzhou (CN); Chicheng Liu, Hangzhou (CN); Zhen Lyu, Hangzhou (CN); Chen Fan, Hangzhou (CN); Miaoye Li, Hangzhou (CN); Wen Wei, Hangzhou (CN); and Zirui Wang, Hangzhou (CN)
Assigned to HANGZHOU HENUOVA TECHNOLOGY CO., LTD., Hangzhou (CN)
Appl. No. 18/289,252
Filed by HANGZHOU HENUOVA TECHNOLOGY CO., LTD., Hangzhou (CN)
PCT Filed Apr. 15, 2022, PCT No. PCT/CN2022/087021
§ 371(c)(1), (2) Date Nov. 2, 2023,
PCT Pub. No. WO2022/233224, PCT Pub. Date Nov. 10, 2022.
Claims priority of application No. 202110490129.5 (CN), filed on May 6, 2021.
Int. Cl. G01R 31/34 (2020.01)
CPC G01R 31/346 (2013.01) 5 Claims
OG exemplary drawing
 
1. A device for detecting an inter-turn electromagnetic pulse vibration wave characteristic of a turbogenerator rotor winding, comprising an ultra-large-capacity internal resistance signal source, wherein the ultra-large-capacity internal resistance signal source is connected to an ultra-high-speed time sequence control circuit, the ultra-high-speed time sequence control circuit is connected to a positive electrode and a negative electrode of a rotor winding through a parasitic inductive power supply via a positive electrode load wave guiding line and negative electrode load wave guiding line, and the positive electrode and the negative electrode of the rotor winding are connected to an ultra-high-speed acquisition circuit through an operational amplifier circuit;
the ultra-large-capacity internal resistance signal source matches with an average time constant of a circular polarization characteristic for each turn of the winding, and generates an energy width of a power circular polarization characteristic wave matching with a full response time constant of the rotor winding;
the parasitic inductive power supply performs circular waveguide coupling exchange on input and output coupling circularly polarized waves (CPWs) of the positive electrode and the negative electrode;
the positive electrode load wave guiding line and the negative electrode load wave guiding line couple CPWs concurrently to a positive electrode and a negative electrode of a rotor;
the operational amplifier circuit combines, couples and amplifies signals for concurrent circularly polarized transmission and reception; and
the ultra-high-speed acquisition circuit acquires a waveform depending on a circularly polarized dual-signal emission source, an induced polarization source at each turn, a disymmetric circularly polarized waveguide load, and a time constant for maintaining energy of the signal source.