scholarly journals Analysis of the implementation of three-phase Variable Frequency Drive on the prototype of a rice drying machine

2021 ◽  
Vol 1098 (4) ◽  
pp. 042057
Author(s):  
M Eriyadi ◽  
A Ajimah ◽  
D Usman ◽  
Y M Hamdani ◽  
S C Abadi ◽  
...  
Keyword(s):  
Variable Frequency ◽  
Phase Variable ◽  
Variable Frequency Drive ◽  
Three Phase ◽  
Rice Drying

Automatic Speed Control of a Three Phase Induction Motor by Variable Frequency Drive

2021 ◽  
pp. 277-286
Author(s):  
Sayantan Chanda ◽  
Chayan Bandopadhyay ◽  
Maitreyee Banerjee ◽  
Shalini Mondol ◽  
Ankur Bhattacharjee
Keyword(s):  
Induction Motor ◽  
Speed Control ◽  
Variable Frequency ◽  
Variable Frequency Drive ◽  
Three Phase

Research on Multi-Speed Control of Variable-Frequency Drive

2014 ◽  
Vol 538 ◽  
pp. 425-428
Author(s):  
Xiao Na Song
Keyword(s):  
Previous Experiment ◽  
Speed Control ◽  
Variable Frequency ◽  
Variable Speed ◽  
Variable Frequency Drive ◽  
Experimental Teaching ◽  
Three Phase ◽  
Speed Mode ◽  
Plc Program

This paper introduces a noval experimental teaching project. Different from previous experiment, in this project, three-phase motor can operate at multi-speed mode or continuously variable speed mode controlled by PLC and VFD. The obvious characteristic of the experiment is that the VFD is controlled by PLC automatically. The configuration of the experiment including hardware and software is introduced in detail. The results of the execuation of the PLC program reveals that three-phase motor can operate in two modes according to the instructions from PLC. In addition, the speed can be changed with the corresponding parameters seting. Therefore, the knowledge of PLC and VFD are combined in one teaching project, through which student can master more practical technique. The work of this paper is significant for improving the students’ comprehensive capability.

scholarly journals Evaluation of Vector-Controlled Asynchronous Machines

2019 ◽  
pp. 20-26
Keyword(s):  
High Performance ◽  
Induction Machines ◽  
Dynamic State ◽  
Pi Control ◽  
Variable Frequency ◽  
Variable Frequency Drive ◽  
Asynchronous Machines ◽  
Three Phase ◽  
Full Speed ◽  
Reference Input

In this paper vector control with variable frequency drive used to apply speed control of a three-phase AC Asynchronous and induction machines. The flux and torque references used to obtain the current components. Proportional-Integral controllers are used to keeping the measured current components at their reference values. The stator voltage references are the output of the PI current controllers. High-performance with the smooth operation is obtained using the proposed method. The differences can be seen in behavior dynamic state. When the motor is rotating at full speed with a full load,it reaches good current waveforms very easily due to the independent PI control of torque and magnitude of flux. In high and sudden variations of the reference input, the direct command is more efficient and less demanding for the equipment. The expressions of the fundamental variables (speed, torque, flux) and equivalent phase circuit of the machine will be reviewed

The Design and Simulation of Wind Turbine Grid Controller

2011 ◽  
Vol 110-116 ◽  
pp. 2481-2486
Author(s):  
Li Ping ◽  
Kai Feng Zhang ◽  
Yong Liang Xiong
Keyword(s):  
Wind Turbine ◽  
High Capacity ◽  
Future Trend ◽  
Maximum Power ◽  
Variable Frequency ◽  
Phase Variable ◽  
Wind Energy Conversion Systems ◽  
Wind Turbine System ◽  
Three Phase ◽  
Energy Conversion Systems

The future trend of wind energy conversion systems is to draw the maximum power from the available wind. Unfortunately this is not possible with high capacity wind turbine, as they can be rotated only for a particular speed. The wind turbine system stated here is a 3.2 KW wind turbine which is allowed to rotate at any speed to grab the maximum power from the available wind. The size of the wind turbine system is small, as a result they can be placed on the roof tops and de-regulation of power can be done. This wind turbine system provides a three phase variable frequency AC voltage and this variable frequency AC is converted into constant three phase 230V AC by using the converter and inverter systems.

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