A SMART STARTUP AND SHUTDOWN SYSTEM FOR DOMESTIC ELECTRIC POWER GENERATORS
Farid Ullah Khan*, Sheraz Ali Khan*
ABSTRACT
Frequent and prolonged power outages in Pakistan have resulted in an increased reliance on alternate sources of backup power, such as uninterruptible power supply (UPS), Solar-cell systems and household electric generators. The startup and shutdown ofmost ofthe household electric generators is manual, which renders them less convenient as compared to the UPS and Solar-cell systems. A fUlly automatic electrical generator that starts and shuts down itself without any user intervention results in increased user convenience. This paper looks at the design and evaluates the results ofa prototype smart system, developed to control the startup and shutdown operations ofa typical household electrical generator. An ATMEL 89C51 microcontroller, relays, voltage regulators, current amplifier, automatic switching relay and step down transformers are used in the prototype circuit to control the functions required for startup, shutdown and switching onto and off the electric grid supply. Simulation of the developed system was performed in Proteus software and a prototype system has been implemented and tested with a 3500 W household electrical generator. The system performance has been analyzed for three different fUels i.e. Petrol, Liquefied Petroleum Gas and Natural gas.
To share on other social networks, click on any share button. What are these?
June 2014
Vol 33 No 1 (2014)
