Inverter current tracking principle

Inverter current can obtain the required current information of the motor from the current supplied by the power supply and adjust it according to the set value, so as to realize the precise control of the motor running state.

The inverter current tracking principle works as follows: when the inverter regulates the speed of the motor, it will output the corresponding voltage signal to the motor according to the set frequency and voltage.

At the same time, it will detect the input current of the motor and compare the detection result with the set value.

If the detected current is less than the set value, the inverter will increase the output voltage to increase the current; if the detected current is greater than the set value, the inverter will reduce the output voltage to reduce the current.

Through constant detection and adjustment, the inverter can realize precise control of the motor current, so as to meet the needs of different application scenarios.

The inverter current tracking principle has a wide range of applications in many fields. In the field of industrial automation, it can be used to control various electric motors, such as fans, pumps, mixers and so on.

In the transportation industry, it can be used in the motor control of electric cars and electric bicycles. In the field of household appliances, it can be used to control the motor operation of air conditioners, washing machines, refrigerators and other electrical appliances.

In addition, the inverter current tracking principle can be used in the control of renewable energy systems such as solar power generation and wind power generation.

The application of the inverter current tracking principle will be further illustrated in the following practical examples.

First is the fan control. A fan is a device that generates airflow by rotating blades driven by a motor.

In industrial production, fans are often used in gas discharge, air-cooled equipment and other scenarios. The inverter current tracking principle can realize the regulation of fan speed by controlling the input current of the motor.

When it is necessary to adjust the wind power of the fan, the frequency converter will be controlled according to the set current value, so that the fan can realize precise speed control under different airflow needs.

Next is the water pump control. Water pump is a kind of equipment that conveys water flow through motor-driven vane rotation.

In the field of agricultural irrigation, water supply system and other fields, the operating status of the water pump is very important for the delivery of water flow.

Through the principle of inverter current tracking, accurate control of the water pump current can be realized, so as to achieve accurate delivery of water flow.

When the demanded water flow changes, the frequency converter will automatically adjust the speed of the motor according to the set current value, so that the running status of the pump is always kept in the best state.

Lastly, there is the electric vehicle drive. Electric vehicle is a type of automobile that realizes driving through electric motors.

In the drive system of electric vehicles, the inverter current tracking principle can be applied to the motor drive control to realize the precise regulation of the power output of the car.

By detecting the input current of the motor and comparing it with the set value, the inverter can realize precise control of the driving force of the electric vehicle.

This not only provides a better driving experience, but also improves the energy utilization efficiency of the electric vehicle.

To summarize, the inverter current tracking principle is a technology used to control the motor current, which can detect the motor input current and compare it with the set value, so as to realize the precise adjustment of the motor running state.

It has a wide range of applications in industrial automation, transportation, household appliances and other fields.

By mastering the inverter current tracking principle, we can better understand and apply this technology to provide better solutions for motor control in various fields.