International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 03 Issue: 06 | June-2016 www.irjet.net p-ISSN: 2395-0072 © 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 2578 Controlling Microgrid System Using Renewable Energy Based Bidirectional PWM Technique with Wireless System and Administered By SCADA S.Divya 1 , S.Sunanda 2 1 S.Divya, PG Scholar, EEE (control systems), Mallareddy engineering college (A), Dullapally, Hyderabad. 2 S.Sunanda, Asst.Professor (EEE), Mallareddy engineering college (A), Dullapally, Hyderabad. ---------------------------------------------------------------------***--------------------------------------------------------------------- Abstract - A microgrid is a local distribution system connecting local renewable energy sources and loads. A smart grid is a national electricity network that uses digital and other advanced technologies to monitor and manage the transport of electricity from all generation sources and loads, including the microgrids, to meet the varying electricity demands of end users. This paper deals with the control of microgrid system by using bidirectional PWM (Pulse Width Modulation) technique by utilizing renewable energy resources wirelessly through mobile phone using Bluetooth. All the wired and wireless devices of the system is controlled by a microcontroller, ARM 7 (LPC2148). The result of the designed converter is verified using the hardware. Assuming for an industrial control system, the design is simulated in the SCADA software and results are observed. Key Words: Microgrid, PWM, Wireless control, SCADA, Renewable energy, 1. INTRODUCTION A grid remarkable in its intelligence and impressive in its scope which offers valuable technologies that can be developed within the very near future or are already developed today[1]. It simply means a Dzsmarterdz power grid.Smart grids co-ordinate the needs and capabilities of all generators, grid operators, end-users and electricity market stakeholders to operate all parts of the system as efficiently as possible, minimizingcosts and environmental impacts while maximizing system reliability, resilience and stability. Smart grid establishes a two-way communication between the utilities and the customer and reduces the stress on the power system infrastructure. Smart grid integrates all sources of energy, mainly renewable energy. 2. MICROGRID Microgrids are electricity distribution systems containing loads and distributed energy sources (such as distributed generators, storage devices or controllable loads) that can be operated in a controlled, coordinated way either as local islanded network or as connected to the main power network. From a grid perspective, the microgrid concept is attractive because it recognizes the reality that the nation’s distribution system is old, and will change only very slowly. The microgrid concept enables high penetration of Distributed Generation without requiring re-design or re-engineering of the national distribution system itself. Fig -1: Microgrid The benefits of using microgrids are improved energy efficiency, minimization of overall energy consumption, reduced environmental impact, and improvement of reliability of supply and network operational benefits such as loss reduction, congestion relief, voltage control and security of supply [2].