{"id":29107,"date":"2018-04-19T01:28:27","date_gmt":"2018-04-19T01:28:27","guid":{"rendered":"\/forum\/forums\/topic\/setting-up-a-linear-induction-motor\/"},"modified":"2018-04-19T01:28:27","modified_gmt":"2018-04-19T01:28:27","slug":"setting-up-a-linear-induction-motor","status":"closed","type":"topic","link":"https:\/\/innovationspace.ansys.com\/forum\/forums\/topic\/setting-up-a-linear-induction-motor\/","title":{"rendered":"Setting up a Linear Induction Motor"},"content":{"rendered":"

I have recently set up a linear induction motor in Ansys Maxwell using the model provided in the Draw\/UserDefinedPrimitive\/RMxprt\/LinearMCore. After adjusting the geometric parameters to my liking, I have set up the simulation and am wondering if I am doing everything correctly in order to model a 3 phase linear induction motor moving on an aluminum beam. Here is a picture of the set up as of now<\/p>\n

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As can be seen, I have set up 3 phases (U is blue, V is red, W is yellow) by taking a section in the XZ plane of every wiring and assigning a Coil Terminal to each i simulate a current. Each Coil Terminal has 10 wraps and is assigned to a specific excitation winding (i.e. U-PHASE). The windings are shown in the next picture<\/p>\n

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Each phase is offset by 2pi\/3. So U = 50*cos(2*pi*FREQUENCY*time), V = 50*cos(2*pi*FREQUENCY*time – 2pi\/3) and W = 50*cos(2*pi*FREQUENCY*time – 4pi\/3).<\/p>\n

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Every successive winding has a different direction of current flow as shown in the pictures below.\"\"\"\"\"\"<\/p>\n

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Next I define a box called Collect around just the motor, and a box called Move that surrounds the Collect box and extends down the track 50in. I then assign a band to the Move box and have it move from 0-39.5in at a parameter called VELOCITY. <\/p>\n

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Here are all the parameters it takes to find VELOCITY. I vary the DELTA_VEL when setting up an optometric analysis from 1-16 to simulate the motor moving at different speeds as the Thrust changes for different speeds. \"\"<\/p>\n

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Is there anything I may be doing wrong? I have it set up and after running the simulation I am generating some odd values for thrust and induced voltage. My thinking is that its something to do with how I define the current in the wires. I want the current to be flowing through the entire wrapping, but I am not sure if setting a coil terminal inside an object makes the current follow the geometry all the way around or if it stops somewhere <\/p>\n","protected":false},"template":"","class_list":["post-29107","topic","type-topic","status-closed","hentry"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t