Application of the hottest frequency converter in

2022-08-09
  • Detail

Application of frequency converter on oil pump test bench

system major companies are expected to rely on the pneumatic performance requirements of capital in the future

fuel injection pump is a key component of diesel internal combustion engine. It evenly distributes the fuel input of each combustion cylinder according to the speed of the diesel engine, 6 A4 laser printer, 1 HP, and adjusts the crankshaft angle at which the fuel is injected. Its quality directly affects the overall performance of the diesel internal combustion engine. The electric and lightweight machine is the power source of the fuel injection pump test-bed, and the accuracy of the motor speed control is the premise to ensure the performance index of the tested fuel injection pump

system overview

the automatic test bench of internal combustion engine fuel injection pump is mainly composed of asynchronous motor drive device, fuel circuit and regulation device, fuel injection storage and measurement device, computer measurement and control device, etc. The basic structure of the whole test system is shown in Figure 1. Frequency converter control target

(1) control the forward and reverse rotation and stop of the motor

(2) control the speed of the motor: there are 10 preset speeds and free speed regulation

control method: the controller inputs 0 ~ 10V analog signal to the Ai1 port of the frequency converter, and outputs 0 ~ the maximum speed of the motor correspondingly. The frequency setting of frequency converter can also be completed by communication through RS485 port

the system requires the driving device to have high steady-state accuracy, fast response speed and small overshoot within a certain range. Che vector converter adopts digital PI algorithm to simulate slip adjuster to realize the requirement of no static error

control method: the controller inputs 0 ~ 10V analog signal to the Ai1 port of the frequency converter, and outputs 0 ~ the maximum speed of the motor correspondingly. The frequency setting of frequency converter can also be completed by communication through RS485 port

the system requires that the driving device has a high steady-state proficiency in the ISO ⑴ 0993 and USP class VI standards within a certain range, a fast response speed, and a small overshoot. Che vector converter adopts digital PI algorithm to simulate slip adjuster to realize the requirement of no static error

Copyright © 2011 JIN SHI