A control strategy on power quality improvement in consumer side using custom power device

Abstract

<p>At a recent time voltage distortion is one of the foremost power quality problem at all level of power system. Power electronic controllers like various filtering technology have been used for more desirable solution of power quality problems to users. But still there is a voltage and frequency deviations problem in the power system leads to reduce in quality of power and thereby reduce the life of consumer equipment. To overcome this drawback and protects the sensitive loads from power quality problems, custom power devices are used. Among various custom power devices, Dynamic voltage restorer (DVR) is an ultimate solution to address the voltage correlated power quality problems. DVR is a usual three phase inverter which transforms DC to AC and vice-versa using DC link capacitor. Whenever utility is distorted by voltage correlated faults, DVR is dynamic and it shields the load from utility distortions. Whenever distortion arises, the control strategy for the DVR plays significant role to make the DVR in active condition. Among all control strategies, Synchronous reference frame theory is simple and suitable for DVR. The DVR topology is verified and validated using SIMULINK/MATLAB.</p>

Automatic control of motors through Simocode pro, and its effect on the performance of the process of filling and dispensing of chemical inputs

“…Today automation is a significant part of the industry [11], its use implies continuous improvement in production processes in an organization [12]. It is under this context that the importance of control systems in industrial processes is highlighted [13]; the current trend regarding the use of control systems is closely linked to guaranteeing the optimal functioning of the equipment and components that are part of the production process [14]. Another aspect to consider when referring to the performance of a production process is the time in which the machines are in operation without showing failures [15], the fact is that the control of the parameters of an industrial process implies a crucial and rigorous activity [16], which must be developed with the highest degree of precision possible [17], since the performance of the process depends on the control, monitoring and supervision of the evolution of the controlled variable with respect to the reference value or set point [18].…”