Radio excitation system, detection method and electric vehicle
An excitation system and radio technology, applied in the direction of electronic commutation motor control, control system, motor control, etc., can solve the problems of inconvenient fault judgment, difficult to detect electrical parameters again, and achieve the effect of easy fault judgment.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0066] An embodiment of the present application provides a wireless excitation system, which will be described in detail below with reference to the accompanying drawings.
[0067] see figure 2 , which is a schematic diagram of a radio excitation system provided by an embodiment of the present application.
[0068] The wireless excitation system provided in the embodiment of the present application includes: a second controller 120A, an excitation transformer 140, an excitation rectification circuit 212, an electric excitation motor, a second power conversion circuit 121A, a first power conversion circuit 151A, a first controller 150A and detection circuit 170 .
[0069] Wherein, the electric excitation motor includes a motor stator and a motor rotor 210 . The stator of the motor is the stationary part of the motor, mainly including an iron core (not shown in the figure), a stator winding 160 and a frame (not shown in the figure). The motor rotor is a rotating part in the ...
Embodiment 2
[0081] In order to make those skilled in the art understand the technical solution of the present application more clearly, the detection principle of the wireless excitation system will be described in detail below.
[0082] see image 3 , which is a schematic diagram of another wireless excitation system provided by the embodiment of the present application.
[0083] Wherein, the compensation network 130 includes an inductor Lr and a capacitor Cr. The inductance value of the inductor Lr and the capacitance value of the capacitor Cr are known parameters during system design. The second power conversion circuit 121A is taken as the DC-AC converter 121 as an example for description.
[0084] image 3 The excitation transformer 140 is treated equivalently in the above, and its equivalent model includes: the leakage inductance L of the primary side lk1 , The leakage inductance L of the secondary side lk2 , The exciting inductance is L m and the ideal transformer T r .
[...
Embodiment 3
[0116] In the above embodiments, the principle of the second controller judging whether there is a fault in the wireless excitation system by using the electrical parameters is explained. The principle of the second controller using the received response signal to detect the fault will be specifically described below.
[0117] see Figure 5 , which is a schematic diagram of pulse current excitation and response signals provided in the embodiment of the present application.
[0118] see also image 3 , after the pulse current excitation is injected into the primary side circuit of the excitation transformer through the second control 120A, the pulse current excitation corresponds to the voltage V AB The waveform is as Figure 5 shown.
[0119] The second controller 120A acquires the signal V ir Waveform characteristics, including frequency and amplitude. Signal V ir The frequency and amplitude characterize the current response of the primary side of the excitation transfo...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com