Vfd Research Papers - Academia.edu (original) (raw)

SPEED CONTROL OF SINGLE PHASE INDUCTION MOTOR USING VFD TECHNIQUE Single-phase induction motors are widely used in home appliances and Industrial control because of their low cost and rugged construction. Many industrial processes... more

— Harmonics are found to have deleterious effects on power system equipments including transformers, capacitor banks, rotating machines, switchgears and protective relays. Transformers, motors and switchgears may experience increased... more

— Harmonics are found to have deleterious effects on power system equipments including transformers, capacitor banks, rotating machines, switchgears and protective relays. Transformers, motors and switchgears may experience increased losses and excessive heating. Shunt filters are effective in minimizing voltage distortions. This paper describes the voltage distortions generated by non-linear loads. The harmonic specifications such as harmonic factor, characteristic harmonic and non-characteristic harmonic are considered while explaining the paper. With the implementation of a passive filter at the bus with non-linear load, the harmonics are greatly reduced. For the specified power system, at all the buses the total harmonic distortion has been evaluated.

In this paper the basic concepts of HMI (Human Machine Interface) & SCADA (Supervisory Control and Data Acquisition) systems is studied, and then interfacing it with PLC system. Industrial Burner Automation is being done which is based on... more

In this paper the basic concepts of HMI (Human Machine Interface) & SCADA (Supervisory Control and Data Acquisition) systems is studied, and then interfacing it with PLC system. Industrial Burner Automation is being done which is based on PLC,HMI & SCADA with remote monitoring and energy conservation. Remote monitoring of field devices is being done with the Scada software and it gathers all the data from Plc module. Here HMI is being used to primarily control and monitor the industrial wood pellet burner. Variable Frequency Drive (VFD) is being used to control the speed of motor by PID control logic.. A P&I screen will be designed to be used for easy monitoring for the burner operator. A Process Trend and Data log will be available for finding the previous and current value of parameters. By Data Logging in SCADA all the data which will be gathered from data logging will be saved to a computer system.

In today’s fast-moving, highly competitive industrial world, a company must be flexible, cost effective and efficient if it wishes to survive. In the process and manufacturing industries, this has resulted in a great demand for industrial... more

In today’s fast-moving, highly competitive industrial world, a company must be flexible, cost effective and efficient if it wishes to survive. In the process and manufacturing industries, this has resulted in a great demand for industrial control systems/ automation in order to streamline operations in terms of speed, reliability and product output. Automation plays an increasingly important role in the world economy and in daily experience. A prototype of commercial “ Hybrid method of automatically filling the bottles using PLC&SCADA and show its visualization on SCADA screen” , controlled using programmable logic controller (PLC) is proposed and the whole process is monitored using supervisory control and data acquisition (SCADA). This system provides the provision of mixing any number of liquids in any proportion. It’s remote control and monitoring makes the system easily accessible and warns the operator in the event of any fault. One of the important applications of automation ...