Youtube daily motor Apr 26 2018

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For more infomation >> MCA Motor Club of America Benefits: Is it worth it? - Duration: 6:18.

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PID Control of a Brushless DC Motor - Duration: 5:42.

Hello, in this video today, we will show how you can automatically tune the gains of a cascaded PID controller

that controls the inner voltage and outer speed loop of a BLDC motor with a trapezoidal back-EMF.

We will be working with a plant model of a 3-Phase BLDC motor with a power link

which has been modelled using non-ideal semiconductor devices with Simscape Power Systems.

The main objective in this example would be to come up with effective gains for the cascaded PI control

loops which help track the speed demand required from the motor.

In the Simulink model, we have the current setup which includes a DC voltage source of 48 Volts,

a DC-DC buck converter connected to a 3-Phase power inverter link and the 3 phase BLDC motor.

In the subsystem named 'Control' here, you can see the cascaded PI control loop architecture.

Here, you have an outer loop that controls the speed and an inner loop that will regulate the Buck converter output voltage.

The final controller output here is the Pulse Width Modulated signal that will be

fed to the MOSFET of the buck converter.

The parameters of this physical setup can be changed based on requirements.

The PI gains were set at initial guesses. Those values do not provide the best performance from the speed controller.

When we run the simulation we can see the speed demanded from the motor in yellow and the actual motor speed in blue.

The reference tracking controller performance is sluggish with a slow rise time,

an underdamped response and a significant overshoot.

We will need to tune the PI controller gains to get a better controller performance with a good reference tracking.

To do this we will use the Closed Loop PID Autotuner introduced in Simulink Control Design release of R2018a.

This block lets us tune the PID gains for a controller while the plant continues to be in

stable closed loop operation with the initial controller.

Firstly, we would need to modify the control loop architecture to include this closed loop PID Autotuner block.

Let us start by modifying the outer speed loop.

Here, we have placed the Closed Loop PID Auto tuner after the PI block in a subsystem called 'Autotuning Speed'

and included a simple enabling logic to enable this block during a specific time of the simulation.

We have chosen a nominal speed of 2000 RPM to which the motor ramps up to and attains steady state operation

before we start injecting excitation signals through this block.

We will now set the tuning requirements and experiment settings for this

outer speed loop in the block dialog of the Closed Loop PID Autotuner.

Under the 'Tuning' tab, we set the controller form and type to be PI and Parallel as in this case.

For the tuning goals, we set a target phase margin of 60 degrees

as this generally provides both a robust and better controller performance.

We have chosen a target bandwidth of 100 rad/second

to provide us with a sufficiently fast controller response in this case.

Now, as a rule of thumb the closed loop experiment should be run for a

time of 200 divided by target bandwidth as a conservative estimate.

We will be running this experiment for 0.9 seconds as this should be sufficient.

Under the 'Experiment' tab of the Closed Loop PID Autotuner

we will set the plant type to be stable and the plant sign to be positive as in this case.

For the amplitude of sinusoidal perturbations, let's choose a value of 1 so

that the plant can be suitably excited within the saturation limit.

Similarly, the Closed Loop PID Autotuner block is set up for the inner voltage loop in the subsystem called 'Autotuning Voltage'.

The block dialog properties are the almost the same as the outer loop except for the target bandwidth

which has been set to 400 rad/sec.

We will be running the closed loop experiment from 1 second to 1.8 seconds with a nominal voltage set at 12.5 volts.

After this is setup, the control architecture looks like this.

We have included the constant blocks 'Tune Outer Speed Loop' and 'Tune Inner Voltage Loop'

which will help in enabling and disabling the Closed Loop PID Autotuner blocks during the tuning runs.

We will follow the procedure of tuning the control loops sequentially,

first the inner loop and then the outer loop.

Once both the loops have been tuned, we can then use these gains

for the controllers and run the model to verify if we obtain a better controller performance.

Let's enable the inner loop tuning by changing the value of the constant block 'Tune Inner Voltage Loop' from 0 to 1.

As the simulation is run, the closed loop experiment runs in the stipulated time

with the Closed Loop PID Autotuner injecting perturbations into the plant, in addition to the

controller request computed by the PI controller.

At the end of the experiment, the block computes the plant frequency response

at several frequencies near the target bandwidth

and then uses this frequency response to automatically compute the PI gains and update them.

Next, enable the tuning of the outer speed loop and disable the inner voltage tuning.

The closed loop experiment is again performed on this loop as the simulation is rerun.

After the block runs through the same process of calculating the plant frequency responses

and tuning the PI gains, we can copy the updated gains back into this PI controller.

Now that the tuning process for both the controllers are done, we can run the simulation

again after disabling the tuning process for both the loops.

Now, we can see a much faster response and good reference tracking

both in the speed loop and the dc link voltage loop.

This concludes the video.

For more infomation >> PID Control of a Brushless DC Motor - Duration: 5:42.

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Abah got sick from falling from the motor - Duration: 2:29.

For more infomation >> Abah got sick from falling from the motor - Duration: 2:29.

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21 NİSAN 2018 EHLİYET SINAVI MOTOR SORULARI AÇIKLANDI|21 NİSAN 2018 EHLİYET SINAVI MOTOR SORULARI - Duration: 5:43.

For more infomation >> 21 NİSAN 2018 EHLİYET SINAVI MOTOR SORULARI AÇIKLANDI|21 NİSAN 2018 EHLİYET SINAVI MOTOR SORULARI - Duration: 5:43.

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Automated Money Making System|MCA System|Motor Club of America - Duration: 3:25.

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For more infomation >> Automated Money Making System|MCA System|Motor Club of America - Duration: 3:25.

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Audi A6 Avant 2.0 TFSI Business Edition Nieuwe Motor !. - Duration: 1:07.

For more infomation >> Audi A6 Avant 2.0 TFSI Business Edition Nieuwe Motor !. - Duration: 1:07.

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M.C.A | Motor Club Of America ! How To Succeed In Business 6 Steps Start Now !! - Duration: 4:29.

Lord Buddha said all that we are is the result of what we have fought the mind

is everything what we think we become have you ever thought how people are

successful or what makes them succeed I believe that there is not a single

person on earth who doesn't want to be successful how are things different for

people who succeed how did they get to the position they are in now why am I

not being so successful in fact it is very easy and more relaxing to consider

that achievement just occurs to a few people however that is not further from

the reality you will find that each and every remarkably triumphant person has

chosen six steps irrespective of the fact that they are successful

financially or in any other way it is not that they suddenly wake up one fine

morning and find that they have succeeded it is without doubt that

successful people have worked their way to the spot they are in now are you

prepared to attempt the six things that all victorious people do one set

objectives bear in mind that all victorious people set goals with dates

within which they complete the tasks some promise to themselves like I surely

will lose five pounds this month and not that I will decrease my weight this year

hence it is a must that you set concrete goals along with a period within which

to achieve those objectives to start immediately you have to start

immediately to succeed like all successful people they never drag or

even try to put it on once they set their goals they start their actions

straightaway since they comprehend the power of force maybe they do not do

everything instantly but still they start and keep going

maybe they seek the help of others to complete some other tasks or they

reserve critical dates whatever it is they never stop once they

get going three be optimistic in fact this one is 50% empty 50% full syndrome

triumph of people are idealist and consider the cup is forever half-full

they are not the pie-in-the-sky type of people they only look at the positive

side of their goals and they trust their ability in achieving their goals for

take action successful people act even if they have partial information but

many people wait till they get answers and if you do so you may have to keep

waiting forever this is in fact known as analysis paralysis and believe me people

do experience it five be resolute actually in war plans

do go to the window the moment the first bullet is fired there are a lot of

variables that it is not possible to decide how things will continue the same

is also true when it comes to the majority of the life decisions you will

never know what will occur as soon as you take the initial step hence only the

constants are final visualization and your willpower to get to that spot even

if you have to tread the rough path six attract it successful people make use of

the laws of attraction to succeed which means that you should have a very clean

and clear vision of your requirements your thoughts will surely pull success

towards you it is a fact that what we think most we will also see it

for instance you buy your most coveted red car and find that almost everyone

has it success does not just happen like that to people something has to be done

in order to make it happen follow the above-mentioned steps and you will also

surely succeed

you