A Modeling and Simulation Method for Electromagnetic Interference Emission of Inverter Motor Drive System
A motor drive system, electromagnetic interference technology, applied in the direction of design optimization/simulation, instrumentation, electrical digital data processing, etc., can solve the problem that the control signal cannot be continuously realized, the influence of cable radiation is not convenient, and the work cannot be simulated effectively at the same time Status and conducted interference emission and other issues
Active Publication Date: 2020-06-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0006] It cannot continuously realize the electromagnetic interference emission simulation with strong coherence from the control signals of different modulation methods and other circuit elements to the working state of the inverter electric drive system, conducted emission interference, and then to radiated interference emission;
[0007] It cannot effectively simulate the working state and conducted interference emission at the same time, and it is not convenient to study the influence of control signals and other circuit parameters on cable radiation;
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0057] In order to facilitate those skilled in the art to understand the technical content of the present invention, the content of the present invention will be further explained below in conjunction with the accompanying drawings.
[0058] Such as figure 1 Shown is the scheme flowchart of the present invention, and the method of the present invention is: a kind of modeling simulation method of the electromagnetic interference emission of inverter motor drive system, and concrete realization process is as follows:
[0059] S1. Obtain the time-domain waveform data of the control voltage of each power switch; different forms of control signals can be easily obtained by using conventional existing methods, and the specific acquisition method is not the focus of the present invention, and will not be described in detail here.
[0060] In this embodiment, the corresponding modulation circuit is established by saber and other simulation software to obtain the waveform data of the f...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a modeling simulation method for electromagnetic interference emission of an inverter motor drive system, which is applied to the field of modeling and simulation of electromagnetic interference emission of electromechanical equipment, and considers the lines between lines, entities and entities and The influence of the spatial distribution relationship between entities and lines on the equivalent circuit model and space electromagnetic field, according to the 3D space cable model, 3D solid model and 3D space equivalent circuit model of the inverter motor drive system, the inverter motor The circuit simulation model of the drive system obtains the control signals of different modulation modes as excitation and inputs the circuit simulation model of the inverter motor drive system to obtain the simulated cable time-domain current waveform data; modify the cable model in 3D space and regenerate it Corresponding to the new 3D space equivalent circuit model, the circuit-side model of the field-line co-simulation is established, and the time-domain current waveform data of the cable is used as an excitation input to the circuit-side model of the field-line co-simulation to obtain the space radiation result.
Description
technical field [0001] The invention belongs to the technical field of electromagnetic interference emission modeling and simulation technology of electromechanical equipment, and in particular relates to an electromagnetic interference emission simulation technology of an inverter motor drive system. Background technique [0002] Inverter motor drive systems have been widely used in pure electric vehicles, hybrid vehicles and other electromechanical equipment and products that use variable frequency speed control motors. The inverter motor drive system is mainly composed of motor controller, drive motor, cable, power supply and other parts. Because the inverter drive part of the motor controller in the inverter motor drive system uses power modules or components, such as IPM, PIM or IGBT, MOSFET, etc. Due to the DC / AC inverter modulation and other working modes of these switching power devices, such as various PWM modulations, operations such as continuous high-speed turn-...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06F30/15G06F113/16
Inventor 杜平安潘泽宇聂宝林肖培范景华魏思琦
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA