ADVANCED MOTORTECH LLC “Pro’s ... - Mining …

1 ADVANCED MOTORTECH LLC. Pro's & Con's 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. of Electric Motor Types . Induction Wound-Field Synchronous Permanent magnet (AC). Synchronous Reluctance Switched Reluctance (w/ Focus on Integral HP AC machines). By: Dr. Keith Klontz and Dr. Howard Li 9 May 2014. 12 June 2014. **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 1. ADVANCED MOTORTECH LLC. ADVANCED MOTORTECH 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. Design Engineering & Optimization Drawing Review & Package Training & Tutorials Theoretical Analysis Finite Element Method Analysis Prototype Manufacturing Research Development Modeling & Simulation Testing & Data Evaluation Manufacturing Process Job Cost Analysis & Cost Reduction Founded in 2005 to provide ADVANCED Energy Efficiency Economics electric machine and power magnetics Patent Writing & Review technology to industry.

2 Product & Technology Comparisons Re-Design, Upgrades, Modifications Repair & Re-Building Failure Analysis Member: SMMA, EASA, IEEE, EMERF Bd of Dir Technical Writing & Publication Technical Partner: JSOL Corp.,CD-Adapco Selection & Application Business Partner: PowerSys High Efficiency or High Power Density Trades Design, Purchase or Service Specifications Prototype Project Management Component Sourcing 12 June 2014 Technology Reviews **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 2. ADVANCED MOTORTECH LLC. 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. Differences: Phase Number Rotor Construction Starting Method Speeds Built In Rotor Excitation Controller Type Current Shape Also, Flux Direction: Radial Axial Linear Tubular Transverse 12 June 2014.

3 **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 3. ADVANCED MOTORTECH LLC. Overview: Similarities and 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Differences of Electric Motors Fax: 727 - 412 - 8299. All motors operate by opposing magnetic forces at the air gap causing motion Stator (Stationary) usually gets it magnetic field by current thru coils;. 3 phase: smooth flux variation (sinusoidal);. produces rotating magnetic field The key difference is in how the Rotor gets its magnetic field Induction PMAC Switched Reluctance Wound-Field Synchronous Synchronous Synchronous Reluctance 12 June 2014.

4 **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 4. ADVANCED MOTORTECH LLC. Overview: Similarities and 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Differences of Electric Motors Fax: 727 - 412 - 8299. How the Rotor gets its magnetic field: Permanent magnet motors special material, no current Synchronous motors Coils on rotor with dc Induction motor transformer principle, stator is primary Synchronous reluctance flux from stator Switched reluctance flux from stator, plus Induction shape effect PMAC Switched Reluctance Wound-Field Synchronous Synchronous Synchronous Reluctance 12 June 2014.

5 **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 5. ADVANCED MOTORTECH LLC. 4951 71st avenue north Overview Similar and Difference pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. of Motors Difference is in how rotor excitation is achieved: influences how motor is started From: SPEED's Electric Motors by TJE Miller 12 June 2014. **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 6. ADVANCED MOTORTECH LLC. Permanent Magnet (PM) Motor 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. Rotor Synchronous speed based on frequency: RPM = 120 *f /Poles Magnets are used for excitation Line start PM motor needs rotor current Requires controller Many variations Higher efficiency and power density than other motors Surface magnet Interior magnet 12 June 2014.

6 **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 7. ADVANCED MOTORTECH LLC. Permanent Magnet Motor: 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. Magnet Material: Enabling Technology Demagnetization Curves Histogram for different types of magnet materials for different types of magnet materials Source: S. Trout/Magnequench 1970's 1980's 1940's 1950's 12 June 2014. **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 8. ADVANCED MOTORTECH LLC. Permanent Magnet Motor 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200.

7 Fax: 727 - 412 - 8299. NdFeB (since about 1980): Rotor Material Large BHmax to >48 MGOe High Hc and Br ( - & 800KA/m). Feasible operating temperature 80 C - 200 C. Linear characteristic, -10%/100 C. Medium cost SmCo: Good magnetism characteristics ( & 700KA/m). High operating temperature 200 C - 350 C. Expensive Ferrite: Normal magnetism characteristics ( & 230KA/m). Normal operating temperature 200 C. Least expensive, lowest cost for unit of torque AlNiCo: Seldom used in machine non-linear BH. Easy to demagnetization Better magnetism characteristics ( & 80kA/m),but low Hc Very high operating temperature 600 C. Expensive 12 June 2014. **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 9.

8 ADVANCED MOTORTECH LLC. PM Motor Pros & Cons 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. Operation of PM Motor Windings are located in the stator, and build the stator field in air gap, looks rotating Air gap field: sinusoidal or trapezoidal Rotor Excitation: Permanent magnets produce the excitation field in air gap Principle: Two magnetic fields interact and develop electromagnetic torque and rotate with synchronous speed Most PM motors require position sensor, speed sensor & controller 12 June 2014. **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 10. ADVANCED MOTORTECH LLC.

9 PM Motor Pros & Cons 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. Pro's of Permanent Magnet Motors Efficiency, Variable Speed, Motion control, High Speed Inherently synchronous, needs help to start Rotor Excitation: permanent magnets (PM), requires no current, but not controllable Lower rotor weight, Lower total weight, and inertia Application: many areas hybrid vehicle, high accurate control, high efficiency application Induction cage Ventilation hole 1500hp, 4. Shaft pole, line- Permanent start PM. magnet motor 12 June 2014. **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 11.

10 ADVANCED MOTORTECH LLC. PM Motor Pros & Cons 4951 71st avenue north pinellas park , FL 33781-4428. Phone: 727 - 412 - 8200. Fax: 727 - 412 - 8299. Con's of Permanent Magnet Motors Control: Overload causes motor stop, need a controller Starting: need controller, or induction cage Temperature Sensitivity: Magnets weakens with temperature Safety: Magnets never turn off'. Magnet cost, new manufacture process Little control of magnetic field strength Broken magnet Brittle material, can crack & chip Demagnetization due to eddy current and overheat 12 June 2014. **Confidential** 2013 ADVANCED MOTORTECH LLC pinellas park FL USA **Confidential** 12. ADVANCED MOTORTECH LLC.