1、Experimental Study on Six-phase Motor Co-simulation And EMI Filter1PPT课件Introduction Six-phase motor is widely used in industrial productionand it is increasingly researched and applied in electricalcars,ship propulsion(舰船推进),aerospace etc.Computer simulation is a simple way to solve complexproblems
2、.It provides a significant tool to examine thecorrectness of the circuit design.2PPT课件Software UsednMaxwell establish motor modelnSimplorer design control circuitnMATLAB(simulink)use the sub-library simpowersystems to make electrical simulation to generate svpwm wave3PPT课件Motor model in Maxwell(cut
3、surface figure,48 stator slots,38 rotor slots)4PPT课件Generate svpwm waveform circuit in MATLAB5PPT课件The total co-simulation circuit in Simplorer6PPT课件SimulationnSimulation stop time at 100ms(5 periods),the minimum step 10us.nThe computer runs for about 240 hours to complete it.nResults as follows:7PP
4、T课件Motor Voltage(first phase)FFT analysis(first phase)8PPT课件Motor Current(first phase)FFT analysis(first phase)9PPT课件Motor Torque(转矩)Svpwm waveform 10PPT课件Coreloss(铁芯损耗)Wireloss(线圈损耗)11PPT课件ConclusionnThe results are basically satisfactory.nMy boss gives me this task in last November and I have fini
5、shed it in the beginning of this semester.Now what I am doing is the EMI filter.Thats what I want to talk about next.12PPT课件EMI Filter nElectrical equipments are widely used in our daily life.They bring great convenience to our life and also make our electromagnetic environment more and more complex
6、.EMI filter is a method to solve the problem of electromagnetic compatibility(电磁兼容).nIn this project,my work is to find a circuit to separate common mode signal and differential mode signal(共差模信号).13PPT课件nMain IdeaOperating Frequency:150kHz 30MHz High-pass filter(高通滤波器)(to filter signals below 150kH
7、z)High-frequency transformer（高频变压器）(separate common mode signal and differential mode signal)14PPT课件Test DataTransformer normal operating frequency:300Hz 50kHzHigh-pass filter cutoff frequency:4.78kHzInput Signal:10 Vp-p15PPT课件AnalysisnHigh-pass filter output satisfies the design requirements.nThe t
8、ransformer output is inconsistent with expectations.Normal operating frequency of the transformer cant meet the needs.16PPT课件SolutionnSearch for transformer meet requirements:can stably work from 150kHz to 30MHz.nFind another way to separate common mode signal and differential mode signal without the transformer.17PPT课件Thank You!18PPT课件
