Wind power as one of a greatly developed distributed generation techniques is gaining increasing significance throughout the world. Switched Reluctance Motor when operated as Generator is proved to be a real alternative to conventional variable speed drives in many applications, especially in the extraction of maximum energy in wind energy generation system with the variable wind speeds. This paper reviews the technology status and recent trends of switched reluctance generator covering the various aspects of Modeling, Design, Simulation, Analysis and Control.

The substantial advancement in drone technology has paved way to its implementation in agriculture. This has led to smart farming UAV’s that are implemented in many areas of agriculture. Smart farming employs drones right from sowing of seeds, crop monitoring, application of pesticide, fertilizer spraying, assessment of crop’s growth and so on. This paper describes the design of an hexacopter platform for fertilizer spraying purpose in the agricultural fields with a payload of 1kg approximately. The hexacopter is equipped with a payload which consists of water pump, tank, nozzles and a controller. Based on user’s instruction, the controller controls the operating status of the pump and monitors the condition of the drone during flight mode. When the battery is about to drain, the drone is automatically landed to the initial position. When payload is attached the flight time of drone is about 15 minutes.

No abstract

No abstract

A street lighting system should be very efficiently designed to provide good visibility, safety and comfort to the users. It must be energy efficient with reduced cost. Generally Street lights are not operated robotically. During summer, the lights are on even during the day resulting in wastage of electricity. In the existing street lighting system, power consumption is more since the lamps glow with full illumination even in the nonappearance of vehicles or pedestrians. To overcome this, an attempt has been made to propose a system which is totally automatic. Thus an efficient and comprehensive scheme for energy saving in illumination is proposed in this paper. The energy saving is implemented using three main methods namely Dawn Dusk Method, Reduced voltage method and one phase cut off randomly and other two phases with reduced voltage method. This idea can exploit the capabilities of energy saving on the street light in well planned township in a systematic manner.