Electric Motor Design PDF Free Download

Electric Motor Design PDF Download Info

Electric Motor Design PDF Free Download, Electric Motor Design Software From Ansys Develops From Concept Design To Full Electromagnetics, Thermal, And Mechanical Analysis.

Electric Motor Design PDF Free Download

How To Build An Efficient Electric Motor And Which Electric Motor Design Software Is Ideal For This. The Approach Outlined Here Is Applicable To Both Ac And Dc Motors. Bldc Motors, Often Known As Brushless Motors, Are Types Of Ac Motors. This Approach Is Also Used To Develop Axial Flux Motors And Induction Motors, Such As Those Manufactured By Tesla. The Following Sections Discuss The Design Stages And Electromagnetic Calculations For Electric Motors.

The First Stage In Designing An Electric Motor Is To Write Out What The Motor Should And Can Perform. This Is Also Known As Determining The Specifications For The Electric Motor In The Industry. So, How Much Torque And How Fast Should The Electric Motor Be?

What Power And Efficiency Should The Motor Have, How Long Should The Motor Be, And What Diameter Should The Motor Have. To Begin, Define The Needs For Your Unique Application, Such As An Electric Automobile, Electric Boat, Or Electric Aircraft. The Requirements For The Electric Drive And Battery System Should Be Drawn From This.

The Needs For The Electric Drive May Then Be Deduced From The Requirements For The Electric Motor And Inverter. Prioritizing The Requirements Ensures That Everyone On The Development Team Understands What Is Most Essential. Prioritization Is Necessary So That The Appropriate Kind Of Electric Motor May Be Chosen Later.

An Electric Drive System Architecture, Consisting Of The Electric Motor, An Inverter, And, If Required, A Gearbox, Should Also Be Developed. An Architecture May Help You Comprehend How Various Components Interact Physically, Electrically, And Thermally. The Design Facilitates Understanding Of The Electric Motor, Inverter, And Gearbox Linkages And Interactions. The Architecture May Be Used To Examine How The Drive System Might Be Improved And Where Expenses Can Be Cut.

What Sort Of Electric Motor Is Ideal For The Given Application Should Be Carefully Considered Throughout The Selection Process. Each Electric Motor Has Benefits And Drawbacks. Which Kind Of Electric Motor Is Best Suited For The Given Application Should Be Compared Using The Previously Established Specifications And A Priority.

It Should Also Be Carefully Studied How Many Units The Electric Motor Will Be Manufactured In The Future. Because The Number Of Units Determines The Winding Method Employed. And Winding Technique Has A Significant Impact On Electric Motor Design.

It Is Not Critical To Choose The Right Beginning Point For The Computation. There Are Formulae That May Be Used To Estimate The Size Of An Electric Motor With A Given Power. However, The Simplest Method Is To Simply Examine The Dimensions Utilized By Other Manufacturers And Rivals That Have Comparable Needs. In Most Situations, The Specifications For The Motor Length And Diameter Serve As A Starting Point For The Electric Motor Design.

Design And Computation Are Carried By Using Analytical Software Tools. The Diameter, Length, And Voltage Of The Electric Motor Are Entered Into The Program. The Torque And Speed Are Then Calculated Analytically By The Motor Design Software Using An Equation. It Also Merely Takes A Few Seconds To Get A Result. The Settings Are Then Adjusted Until The Required Torque Is Obtained.

Because Each Parameter Has A Direct Impact On Various Qualities Of The Electric Motor, Adjusting The Settings Requires A Lot Of Knowledge. You May, For Example, Employ Optimization Methods To Assist You In Developing A Highly Efficient Electric Motor.

However, The Analytical Computation Has A Major Flaw: The Accuracy Of The Speed, Torque, And Efficiency Results. Typically, The Accuracy Is Between 70 And 80 Percent. It Is Determined By The Complexity Of The Electric Motor And The Software Used. How Can You Currently Enhance Or Double-check Your Results?

A 2d Fem Simulation Is The Best Technique To Validate The Analytical Calculation. The Term “2d” Refers To The Motor Being Split Into Several Little Components In The X And Y Dimensions. The Smaller These Components Are, The More Precise The Outcome. The Smaller These Parts Are, The More Accurate The Simulation Result Will Be, But This Will Also Need More Computer Time.

The Findings May Then Be Utilized To Refine The Analytical Calculation’s Parameters. So Why Should You Even Bother Going Back Into An Analytical Calculation? In A Two-dimensional Simulation, Just One Load Point, I.e. The Efficiency At One Speed/torque Point, Is Typically Computed. This Normally Takes Many Minutes To Hours, Thus Calculating An Efficiency Map Analytically With Appropriate Parameters From The 2d Simulation Makes More Sense.

When And Why Would You Need A 3d Simulation? In 2d Simulation, The Structure Is Assumed To Be Replicated In The Zdirection. This Is Not The Case, For Example, At The Top And Bottom Ends Of An Electric Motor When Seen From Above. Stray Fluxes May Occur At The Top And Bottom Ends Of The Motor, And Their Magnitude Should Be Estimated. Stray Fluxes May Have A Significant Impact On Relatively Short Electric Motors.

As A Consequence, The 3d Simulation Findings Should Be Utilized Again In The 2d Simulation. Because Calculating An Electric Motor Characteristic Curve In A 3d Simulation Would Need An Excessive Amount Of Processing Power And Time.

Axial Flux Motors Are Another Example Where 3d Simulations Are Required Because The Electromagnetic Field Varies In All Three Dimensions. Bending Vibrations Of The Shaft May Occur In Extremely Long Electric Motors, Causing The Distance Between The Rotor And Stator To Fluctuate Over Time. This Distance Is Also Known As The Air Gap, And Changes In It Have An Effect On The Torque And Its Trajectory.

Anyone Who Simulations And Calculates Should, Of Course, Be Able To Verify The Findings. Because The Gap Between Theory And Practice Is Greater In Practice Than In Theory. There Are Three Stages To Checking The Findings.

Measuring The Materials, Such As Magnets And Sheet Metal. The Components Are Measured, Such As The Rotor With Magnets And The Stator With Windings. Finally, An Active And Passive Measurement Of The Whole Electric Motor. To Enhance The Simulation, Start Measuring Materials And Components As Soon As Feasible And Integrate The Data Into It.

An Electric Motor’s Mechanical And Thermal Design And Simulation Are Also Critical. Because Only A Thermal Simulation Can Determine How Long An Electric Motor Can Really Offer Full Power. The Thermal Design And Calculation Technique Is Quite Similar To The Electromagnetic Design Procedure Mentioned Above. The Electromagnetic Simulation Data, Such As Power Losses, Are Included Into The Thermal Simulation. A Mechanical Simulation Is Especially Relevant If The Electric Motor Produces Significant Torques Or Travels At High Speeds.