2012 Toyota Prius Vs Highlights
Toyota has recently added a new vehicle model to its growing collection of the Prius vehicles. This is part of the companys desire to increase the number of Prius models on the road that will be offered for sale to hybrid car finders. This time the 2012 Prius V with its V which is pronounced as vee for versatility was a redesigned version of this iconic Prius which remains to be the most fuel efficient hybrid car in the market.
One of the improvements that Toyota has placed on the 2012 Prius V is its reduced weight. This version takes pride of its reduced curb weight which is approximately 20 percent lighter than the previous version. Toyota has subjected the Prius V to diet which gave way for its final curb weight of about 3,274 lbs. With this particular characteristic, it is expected to deliver the same level of fuel-efficiency that would encourage more and more new car finders to purchase this version using the auto financing deals offered by Toyota dealerships.
The Prius V also offers more space compared to the previous version. Its current cargo space is about 34.3 cubic feet when its rear seats are folded making its space on this area 80 percent larger than what its closest competitors have.
However, this Prius still uses the Hybrid Synergy Drive system used in other Prius versions. This is powered by a 1.8liter Atkinson cycle engine with a 98 horsepower maximum power output. The second power source used in this hybrid is also the same Motor Generator 2 AC synchronous motor with a power output of about 80-horesepower used in previous Prius versions.
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When I make my electric fan oscillate the power turns off immediately. It is the synchronous motor?
Is it the synchronous motor or the step down voltage regulator’s fault?
it’s a stand fan… I opened up the back and there’s the standard fan motor along with a synchronous motor that is responsible for the oscillation function.
Where can I find a good flash animation illustrating how a synchronous motor works?
I am the TA for an electric machines laboratory course, and I want to give my students a good resource to help them understand how a synchronous motor works.
If you could find a good website with an animation that illustrates how a synchronous motor works, that would be great. I have searched via Yahoo/Google and have not found anything that I like.
In particular, animations that show the following would be nice:
** How the three-phase windings produce a total rotating flux wave
** How the rotor flux follows the rotating flux wave
** How adding more load torque causes the rotor flux to become unaligned with the stator flux (torque angle)
Thank you for your time.
synchronous motor?
how does a synchronous motor give us a leading power factor? i know if you increase the excitation current to the rotor thats how its done but what actually (physically) happens? does the rotor field try turning faster than the stator field?
On a generator you increase the field excitation, via an AVR which will alter the power factor, the speed does not increase, it is to do with the voltage to current vectors,
what is the difference between synchronous and asynchronous motor?
i want the difference in working operation at the rotor side as at synchronous motor rotor feeded by D.C current but at induction by A.C
Can a slip ring induction motor be able to run as a synchronous motor?
What happens if we try to give dc to the rotor and try to run like a synchronous motor?
You could check with IEEE and see if they have anything available. Actually their members would be a more focused group to contact for help. The best links I found were not really what you wanted.
http://www.physclips.unsw.edu.au/jw/electricmotors.html#ACmotors
http://www.allaboutcircuits.com/vol_2/chpt_13/2.html
A “machine” has a shaft for rotational energy input/output and electric terminals for electric energy input/output. If it takes electric energy, it is “motoring;” If it gives electric energy, it is “generating.”
A synchronous generator rotates an electromagnet within coils generating three-phase alternating current. All by itself, it is not “synchronized” with anything.
So let’s have two steam-turbine synchronous generators put in parallel, with both turning at 3600 revolutions per minute (rpm). Now, the generators must both turn at the same speed. If one loses steam completely, it will motor at
3600 rpm pulled along by the other generator working harder. But let’s put the steam back, and have the two turning as generators. The point is, either machine can only generate or motor at 3600 rpm.
Picture a third synchronous generator with a diesel engine attached as a potential prime mover. I must start the engine and have it turning at 3600 rpm before I parallel this third machine. If I feed enough fuel, it will join the
other steam-powered generators and share the load at 3600 rpm. This is the synchronization aspect. This “doubly-excited” machine (DC on the rotor; AC on the stator) can only participate in average energy conversion at 3600 rpm. It must be synchronized.
Can we parallel a fourth machine that does not have to be synchronized? Yes. I attach a two-pole squirrel-cage induction motor to another
prime mover — this time, a windmill propeller.
I parallel the four machines, and the induction motor begins spinning the propeller at a speed less than synchronous speed — say, 3200 rpm. The induction motor is acting as an asynchronous motor. Suddenly, the wind picks up big time, and the propeller, instead of taking energy, begins pumping mechanical energy into the motor. Now the speed is 4000 rpm, and the induction motor is now acting as an asynchronous generator. Any speed above 3600 rpm will result in generation.
Being singly excited (AC on the stator) allows the induction machine to generate or motor at any speed. Above 3600, it generates. Below, it motors.
There’s your asynchronous generator. But it must work with other machines, at least one of them one that is doubly excited.
Yes it can….