00:03Welcome! This video will cover the topic of frequency inverters using
00:08cadesimu for simulation; for this we are going to watch a video which is a frequency inverter
00:13Perhaps you've walked right past one without realizing it, or maybe you even know how many you have in any one place.
00:21In this case, electric motors play a very important role in our businesses and
00:26Our daily lives are responsible for making everything we need work.
00:32in leisure as well as at work, and all these motors run on electricity to be able to
00:37Generating torque and controlling speed all consume a certain amount of electrical energy.
00:43These motors consume electricity to provide the required torque or speed in case of
00:50If this stop or speed is too high or too low, mechanical controls are used to
00:55Slowing down or controlling the output is not efficient as it wastes materials
01:00and energy the speed of an engine should exactly match that required by the
01:05In this process, if a more efficient control method is not used, a great deal of money is wasted.
01:11amount of energy and nobody wants to waste energy there is a way to control motors that
01:19This technology not only saves energy but also reduces maintenance costs.
01:26It is called an alternating current frequency converter, and what are these frequency converters?
01:31AC frequency converters, also called converters
01:37Variable speed or variable frequency drives or simply converters: how they work
01:43A converter; converters are located between the power supply and the motor.
01:50The energy passes through the converter that regulates the energy transmitted to the motor. Inside the converter, the
01:58Energy passes through a rectifier that transforms the incoming alternating current into
02:03This direct current charges the converter's capacitors, which smooths the waveform of the
02:10electric current providing a clean power source then the energy
02:16It goes from the capacitors to an inverter that transforms direct current into current
02:21The output AC signal is transmitted to the motor; this step allows the converter to adjust
02:27The frequency and voltage depend on the process requirements; this means that the motors of
02:34Alternating current will operate at the indicated speed or torque according to demand
02:40Thus, converters represent significant economic savings in addition to saving our energy.
02:48Converters will also help you reduce maintenance costs and noise emissions
02:54They can also help you achieve your environmental goals, which is why we have developed a
03:01wide range of converters for all your applications large or small we understand that
03:08When deciding to use converters in your business, every detail counts
03:17A frequency converter will now be physically detailed.
03:29As you can see here, we have the variator
03:34There is a display in that part; it is the control section where we will parameterize the values.
03:40Here we have some inputs; these inputs are the control inputs; these inputs are the ones that go to the motor.
03:47line 1 line 3 here we have t1 t2 t3 the ones of perhaps the control ones as you wish to command
03:57wishes that
03:57Turn the frequency inverter on or off from here
04:03Or the other option here, using the digital input, turns on the drive.
04:13Now we will mention the elements necessary for the simulation; first, let's look at the power supply.
04:19l1 l2 l3 and protection line
04:27Next we go to circuit breaker 3
04:37Next, in the toolbar, we go to power and select a speed variator.
04:46then a three-phase motor
04:51And a control in this case will be the frequency inverter
05:00Now let's go to the control section. In this section we have the different elements such as pushbuttons, contacts, coils, actuators.
05:07in this case pushbuttons
05:09When the circuit breaker is pressed, as protection, it will activate contact q1. The activation of the normally closed push button will be for the
05:16Changing the direction of motor rotation by pressing s1 activates the rotation by interlocking contact k1
05:23a coil k1
05:24For the right, for the second motor turn, for the left, the same configuration will be used, changing the names.
05:31of the actuators and contacts and other elements
05:36If the frequency converter configuration is activated, the change in speed is observed through the change in frequency.
05:42For the bottom part we have a potentiometer
05:46The drive parameters can be entered by double-clicking; the minimum frequency can be selected.
05:51The potentiometer on the upper right side of the variator has inputs one through four for one turn
05:57One way will connect, and one for the other way will be two
06:01The part of the drive where a normally open contact appears will activate whenever there is no fault.
06:07a protection of the element
06:18Now we move on to the simulation
06:48the given time is observed
06:50The desired engine speed is as follows: we find the acceleration upon starting and the
06:57To decelerate when turning off, we activate the potentiometer by double-clicking.
07:08We can increase the speed in revolutions per minute at a frequency of one hertz; we perform the same action for the
07:14another direction of the engine
07:37That's all, don't forget to subscribe, see you next time!
07:41Thank you!
07:57Thank you!
07:58Thank you!
07:58Thank you!
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