What is the difference between vector inverter and general inverter?
There are two types of inverters: general inverters and vector inverters. Although they can be used, there are differences between these two inverters.
There are two main differences between vector inverters and general inverters. The first is the high control accuracy, and the second is the large input torque at low speed. Can input additional torque 150%-200% torque.
General-purpose inverters are mostly used in places where heavy loads are started.
For example, high-power long belts, hoists, etc. At this time, when the vector inverter is selected, the load is too heavy when starting, and the input torque is not enough, which will cause the motor to fail to start, and problems such as motor blockage or inverter overcurrent will occur.
A more easy-to-understand expression: such as driving, where: vector control is also called ‘speed control’, which can be seen literally.
V/F control method: Just like the throttle opening on your foot when driving is stable, and the speed of the car must be changing at this time! Since the road on which the car travels is uneven, the resistance of the road is also changing, the speed will slow up when going uphill, and it will slow down when going downhill.
For the inverter, your frequency setting at this time is equivalent to the opening of the accelerator on your foot when driving, and the opening of the accelerator is fixed under V/F control.
Vector control mode: It can control the car to keep the speed as constant as possible under the changing conditions of road conditions, resistance changes, uphill, downhill, etc. If you want to keep the vehicle speed constant regardless of uphill, downhill, or road resistance changes, the throttle opening must be adjusted at any time.
The speed setting value is equivalent to the throttle opening. The setting value has not changed. Is the throttle opening adjusted in place with the resistance of the road conditions at any time?
In fact, when you select the control mode as vector control, the CPU outside the inverter follows this special function! Apply the motor current change to reflect the past information, after the CPU external solidification sequence, formula, through the CPU external PID regulator from time to time to add or increase some throttle opening on the basis of your original throttle opening (initiating the engine's oil intake the amount).
So, from the outside, your throttle speed does not change during V/F control and vector control. However, in essence, the throttle speed does not change during V/F control. However, the actual throttle opening is in "vector control".
It is changeable (regulate up and down based on your original throttle speed). In this way, the speed can be kept as constant as possible.
After reading this article, do you have any doubts about the difference between vector inverter and general inverter? If you have any doubts, please click Jact-inverter manufacturer to consult.