Electric cars are the future, and are beginning to take off today. Observe parameter 497 flux current ref verify it is about. Continuous current of 160 amps rms, and continuous power of 14. Emn division automation group 5500 business park drive rohnert park, ca 94928 keywords. With parkers array of motors delivers peak output power from 15kw to 210kw with torques up to 900nm. The cross section of a threephase two pole trapezoidal pmac motor is shown in the figure below. The system also has an encoder mounted on the machine which is used to measure the speed of the mut. The first product in the hv family is now available with development of additional versions on. The first product in the hv family is now available with development of additional versions ongoing.
If the magnets are mounted within the rotor, then the pmac motor is called internally fitted with permanent magnets. Verify what type of pmac motor youhave and set parameter 589 pm algor sel algorithm 1 for ipm motors and algorithm 2 for spm motors. Torque compensation 360 cogging torque electrical angle 4 2 024 00 90 180 270 90 180 270 compensated not. Whats the difference between ac induction, permanent. The brushless dc motor drive is mainly classified into two types, i. Parkers invertermotor combinations are preengineered for the highest efficiency and performance, minimizing losses both during motoring and power regeneration, providing maximum vehicle range. Induction an pmac doesnt really work, because the induction motor needs slip, which is a no go with pmac, or pmsms, where the rotor runs at the same frequency as the electric field. This has the same stator and rotor as the me1507, but in a water cooled ip67 case.
The input voltage of the voltage source inverter remains constant, and their output voltage is independent of the load. Pmac801 motor protection controller instruction manual v2. This application note provides a general overview of bldc motors, including. This type of motor is used in the chevy bolt, the chevy volt, and the tesla model 3. Pf525 with pmac motor start up guide kendall electric. Turbo pmac clipper hardware reference manual drive motor setup the turbo pmac clipper supports three types of outputs. Ac drives lead the technical revolution of electric forklifts.
Using the m523xevb, 33395 evaluation motor board, and mcg bldc motor. The me1507 is an radial air gap, permanent magnet synchronous motor pmsm with an internal permanent magnet rotor ipm. The resistances and inductances of the field and armature sides of the motor are. Motor start to run till hot capacitor decrease to 15% of rated after receive stop command. Ac controllers for pmac and induction motors 3660v, 275, 450 and 650a1 the g48series represent the latest design in compact ac controllers. Pmac motors are permanent magnet synchronous motors but they also go by the names bpm brushless permanent magnet motor, and pmsm permanent magnet synchronous motor.
Other tesla models use traditional induction motors. Gvm series pmac traction motor generator designed for high performance vehicle applications. Peak torque continuous torque speed the combination of these three also impact peak and continuous power output of the electric motor. Except the etpu, the following peripheral modules are utilized.
Comparing ac induction with permanent magnet motors in. The magnetic field on the rotor is either generated by current delivered through slip rings or by a permanent magnet pmac take note. A permanent magnet motor is a type of electric motor that uses permanent magnets rather than windings on its field. New pmac 38 kw liquidcooled 120v motor from electric. Motor control and power supply design using bldc, pmsm and. The motors can simplify drive systems by effectively eliminating the need of speed reduction devices. Management trapezoidal waveform bemf characteristic of bldc motors, and when the waveform is. Pmac motors and generators highly efficient and power dense pmac motors mean smaller packages and longer range. As a consequence, they are more efficient typically 24% at full load, run cooler than induction motors, and typically have higher power factors. Electric drives experiment 6 analysis and control of a permanent magnet ac pmac motor 6. For electric and hybrid vehicles, a major source of cost is in the energy storage system. In this state, if there isnt fault information of motor, the run state will be changed from stopped.
When selecting pmac motors, three major areas are considered. Manual interface startstop switch, updown push button control, led indication. A wide variety of pmac motor options are available to you, there are 71 suppliers who sells pmac motor on, mainly located in asia. Permanent magnet synchronous motor with resolver, vector control, driven by etpu on mpc5500, rev. Motormode is set to 1, 2, or 3, and the networkslave power pmac performs commutation and currentloop closure for the motor this is the most common style of operation, then all of the commutation and currentloop parameters must be set on this power pmac, just as when the motor is operating independently. This activity was derived from those developed and distributed by the university of minnesota umn. This will take about 45 seconds to a minute to complete. Delta tau turbo pmac clipper hardware reference manual pdf. The brushless dc motor drive is used in record players, the tape drive for recorders, spindle drive in hard disks for computers, and low power drives in computers peripherals instruments and control systems. Dcdc converters these are used to step down your pack voltage to 12vdc in order to use a vehicles oem wiring systems lights, horn, accessories.
Pmac vs induction motor for model 3 page 6 tesla motors club. Motor z motor x pmac motor creates motion profile suppresses disturbance executes motion program in synchronization with external input provides velocity corrections by compensating for cyclic disturbances such as motor cogging torque. Also, the heat is largely produced by internal elements of the dc motor, so most dc motors have a fan to reduce temperature. An4480, permanent magnet synchronous motor with resolver. Pmacbldc motors offer several advantages over brushed dc motors, including more torque per weight, more torque per watt increased efficiency, increased reliability, reduced noise, longer lifetime no brush and commutator erosion, elimination of ionizing sparks from the commutator, and overall reduction of electromagnetic interference emi. Low cost selfsynchronizing pmac motor drive using st7flite35. The big advance is what is known as the pmac permanent magnet alternating current or bldc brushless direct current motor. Jun 07, 2016 pmac motors save energy when compared to ac induction motors, and also have several other advantages. Since pmac motors are synchronous machines, to get the best.
Pmac motors save energy when compared to ac induction motors, and also have several other advantages. Electric drives experiment 6 analysis and control of a. The voltages applied to the field and armature sides of the motor are represented byv f and v a. In many circumstances, the standard motor catalog gives the adequate information to select and size. After its hot capacity less than 15% of rated, the controller indicates that the motor comes into stopped state. This procedure will guide the pmac user through the setup for commutating either brushless pmdc motors sometimes referred to as acservomotors or merely brushless motors or moving coil brushless linear motors. Designed for the demanding applications found in todays highperformance electric and hybrid vehicles, parkers gvm series of traction and auxiliary motors offer lower weight and higher power in a smaller package than other motors on the market. Front motors in allwheel drive model 3 teslas are also induction motors. There are various converters designed for bldc motors for varied applications. Permanent magnet motors process performance motors iec low.
The curtis model 1220 is a brushed dc permanent magnet motor controller for electric power steering, steerbywire systems and only works with curtis vcl enabled ac traction controllers. Pmac motor, drive shaft gearing, and vehicle tires 4 fdrive 3 soc 2 iabc 1 iinv tire motor drive inverter. Since no electric current is induced in the rotor, pmac motors have much lower electric resistive losses than ac induction motors. Inside the 2010 zero x battery pack molicel 5k ohm throttles. And the end of the motor ramping to speed it should coast to stop. They also have applications in aerospace, in biomedical and in driving cooling fans, etc.
Torque maximisation of the pmac motor for high performance. A 3 phase ac motor is the absolute standard for car companies when they make an electric vehicle. Management trapezoidal waveform bemf characteristic of bldc motors, and when the waveform is sinusoidal, the motor is pmsm. These reliable controllers are intended for onroad and offroad electric vehicles and feature the smallest size in the industry for their power capacity. Each pmac channel provided by a pmac dspgate has one dac output, one encoder input and four dedicated flag inputs. Terminator for command sent and status read back through serial port. The permanent magnet motor range extends the effective nominal speed range of the rugged industry workhorses down to 100 850 rmin. The magnitude of the load current depends on the nature of the load impedance. The bolts motor weight 76kg and produces 360 nm peak torque and 150 kw peak power the motor used on the much heavier s85 is supposedly under 35 kgs and produced 441 nm peak torque and 283 kw peak power i should also mention that if cooling were to fail and the temperature gets too hot a pmac motor can permanently lose magnetism. Motor drive kits diy ac induction motor drive kits. New pmac 38 kw liquidcooled 120v motor from electric motorsport the photo shown here is a common choice for ev applications though this one is a lot prettier than most but its an ac2030 type ac induction motor. The phase currents are sampled by the external analogtodigital converter.
Permanent magnet synchonous motor vector control, driven. Any pmac can control up to eight motors or axis as long as enough channels are provided. Whats the difference between ac induction, permanent magnet. Electric motors have been vastly improved in recent years, especially for applications that require high efficiency and torque at a wide range of speeds such as your ea sailboat. Theres a good chance pmac motors are better for a semi because the ratio of peak to average power use on a semi is far, far less than on, say, a ms p100d. Enhanced direct memory access controller edma enhanced queued analogtodigital converter. Comparing ac induction with permanent magnet motors in hybrid. The voltage source inverter is defined as the inverter which takes a variable frequency from a dc supply. The motor demands a controlled pulsewidthmodulated pwm voltage to run at.
Comparing ac induction with permanent magnet motors in hybrid vehicles and the impact on the value proposition jay w. Analysis and control of a permanent magnet ac pmac motor. High performance igbtbased inverters provide maximum versatility, offering compatibility with pmac or induction motor designs. Setup for pmac commutation of brushless pmdc acservo. Jul 31, 2017 pmac motors are permanent magnet synchronous motors but they also go by the names bpm brushless permanent magnet motor, and pmsm permanent magnet synchronous motor. The steering motor functions as an actuator to change the angle of the wheels thereby changing travel direction. Permanent magnet synchronous motor vector control, driven by etpu on mcf523x, rev. Designed for battery pack voltages of 100 vdc or less. Pmac801 motor protection controller instruction manual v1.
Brushless dc motor fundamentals application note monolithic. A few to notify are a buck converter based csi fed bldc motor for defense. Analog 10v 12bit filtered pwm analog 10v 18bit true dac with acc8es pulse frequency modulation pfm the following chart summarizes the steps to implement for setting up a motor properly with the turbo. Motors convert electrical energy into mechanical energy using. Gvm series pmac traction motor generator parker promotion sites. Oct 07, 2016 at under 4,000 rpm, the pmac was more efficient, but at over 4,000 rpm, the induction motor was more efficient. They are designed exclusively for frequency converter supply, where they provide. Pmac motors also avoid the defects of commutator and brush in the dc motor. This can be used for close loop feedback speedcontrol of the motor.
The second type is the synchronous motor, which does not rely on induction and as a result can rotate exactly at the supply frequency or a submultiple of the supply frequency. Someone may have simply chosen the incorrect option for a drop down menu before saving the pdf file, or simply typed in the wrong information. Combining more than 50 years of experience in motor inverter and highfrequency battery charger design, zapi is introducing its platform of igbtbased controllers for high voltage applications. A concept of a power electronic converter for a bldc motor drive. Permanent magnet alternating current motors seventhwave.
Pmac vs induction motor for model 3 page 2 tesla motors club. This drive has only three transistors and three diode converter which can supply only positive current or. Motor technologies for higher efficiency in applications. Note that this paper, like many, do not explore the performance regions where teslas motors often operate. Permanent magnet synchonous motor vector control, driven by. Pmac motors have a 1015% higher efficiency than induction motors, are smaller and weigh less. New pmac 38 kw liquidcooled 120v motor from electric motorsport a short primer on the history of the etek motor, and other tales.
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