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Inverter is a tool that is present in almost every company, organization or family. Because of the need to use inverters to regulate asynchronous motors, it saves considerable energy. So, how exactly does this machine work in detail? Let’s find out with DVES through the article below!

What is Inverter?

An inverter is an electronic device that converts electrical energy from an electric current in one frequency and phase configuration to an alternating current with another frequency and phase configuration. Inverters usually have self-protection over-current, overvoltage and under-voltage protection, making the system safe to operate.

The inverter contributes to the process of starting the motor carrying a large load without being too sudden, avoiding damage to the mechanical part, the bearing, and increasing the life of the motor in the system. In addition, this device also easily changes the motor speed, reverses the motor rotation direction, significantly saving energy compared to the direct motor running method. When integrated with communication modules, it is easy to control and monitor from the center.

Structure and Principle of Inverter

Inside the inverter device are parts that specialize in receiving a fixed frequency input voltage, and then converting it into a voltage with a variable frequency according to the motor speed. The main parts of the inverter include:

  • Rectifiers
  • Filters
  • Insulated Gate Bipolar Transistor
  • Control circuit

In addition, the inverter is also integrated with a number of other auxiliary parts such as: AC or DC reactor, discharge resistor, adjustment range, monitors, communication module,… Control and monitoring from the center is much easier.

Working principle of the inverter: converting the inverter through the diode and capacitor makes the reactive power from the motor very low, thereby significantly reducing the cost of installing capacitors, minimizing power loss in the operation process.

The Primary Function of an Inverter 

The function of the Inverter is to convert power sources into alternating current with suitable frequency and phase configuration. Here are some popular applications:

  • Water pump
  • Exhaust/push fan, air compressor
  • Conveyors
  • Lifting/lowering device
  • Traction Rolling Machine
  • Injection molding machine
  • Rolling/Releasing Machine
  • Elevator
  • HVAC System
  • Mixers, centrifuges

The inverter has a very simple structure and can work in many different environments. Meet the diverse needs of equipment with quality working speed.

The common type of Inverter

Inverter types are differentiated by power, input voltage, output voltage and phase. Specifically: AC inverter, DC inverter, single-phase 220V inverter, 3-phase 220V inverter, 3-phase 380V inverter, etc. Besides the multi-purpose inverter lines, there are also specialized inverter lines. :

  • Specialized inverter for pumps.
  • Dedicated inverter fan for lifting equipment
  • Special inverters for elevators.
  • Specialized inverters for air conditioning systems,…

DC Inverter 

The DC inverter is the right choice if you want to adjust the DC input voltage to the motor. The principle of the DC inverter is to control the branches of the DC motor. The DC inverter controls the branching of the DC motor. This inverter design helps to divide the inductor and branch circuits.

AC Inverter

AC inverter is one of the most popular types of inverter, with single-phase or 3-phase voltage is widely used and is most popular and is designed to control machines and vehicles that operate thanks to electric current.

3 phase Inverter

The default 3-phase inverter device has an input voltage of 380V and an output voltage of 380V. And most inverters today are of this type.

Single phase Inverter

Used to refer to the type of inverter whose input voltage is only 1 phase (220V) and the output signal is 3 phase 220V, can also be called 1-phase 3-phase inverter. Used quite a lot for refrigeration electronics.

Solar Inverter

An electronic device that converts direct current into alternating current. The electricity generated by solar panels is direct current, while most home appliances are operated by alternating current. Therefore, the role of the inverter in the solar energy system is extremely important, helping to convert DC power from absorbing panels into alternating current to be suitable for household electrical appliances.

Elevator Inverter

Elevators typically use a 3-phase synchronous motor and need to use the elevator inverter to control the speed of the engine stop right floor on the needs of the user. Setting multiple levels of motor current control helps the elevator operate smoothly and gently, especially minimizing the cost of elevator installation and maintenance, saving energy, etc.

The structure of the elevator inverter includes: inverter and rectifier circuit, control unit, intermediate DC circuit, …

Address providing reputable inverters in Ho Chi Minh City

At DVES, we provide a full range of equipment Inverter with the best quality with affordable prices and have extremely clear origin. Expert advice to help you choose the most suitable product.