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The existing energy meters have many drawbacks like two way communication, real time monitoring, energy tampered, etc. to cope up with these disadvantages this project means to monitor energy consumption at domestic level. This helps in reducing energy consumptions and monitors the units consumed. The aim is to make the electrical appliances intelligent and provide comfort to consumer and to reduce power consumption in web applications. This paper presents the power meter for monitoring energy flow in smart grids by using advanced sensing technique and IOT. These devices are able to monitor energy consumption consumers in real time. Current sensor measures the current flowing through the devices then controller performs necessary calculations on data and put that data on the internet. Use of smart meter has changed the way to exchange energy in the grid. Now it is possible to change the direction of energy flow according to needs. This meter helps to monitor electricity among the different nodes in efficient way.

In this paper, the application of DC borewell with high step-up DC-DC converter used to produce high voltage gain along with coupled inductor and switched capacitor technique. This topology consist of voltage multiplier cell, microcontroller, switched capacitor and coupled inductor. The switched capacitor get charged in switch off period by using energy accumulated in coupled inductor which increase the voltage gain. Therefore, the conduction losses are minimized with the RDS low resistance and main power switch circuit. The simulation model of "The application of DC borewell with high Step-up DC-DC Converter Using Photovoltaic System" is based on switched capacitor and coupled inductor techniques. MATLAB software is used to give input of 17v from the PV panel and expectedly got output voltage of load 500 v and power of 200W. Finally, checked its working with basic circuit of 20v I/P and 530V O/P.

This paper present a simulation model for three switch single phase switched coupled inductor (SCL) inverter for PV system. This inverter is used to overcome the drawback of conventional inverter such as, H-bridge inverters, Full bridge inverter, voltage and current source inverters (VSIs & CSIs) have some disadvantage like that low boost ability, high switching stress and also the high volume of the circuitry. This paper proposes a design of an switched coupled inductor (SCL) inverter with the combination of capacitor, power switches and switched coupled inductor. The main aspect of the coupling of inductor is that high voltage gain, high boost ratio and reduction of overall inverter volume. It has also the advantage that is low switching stress because less number of switches are used. Thus analyzed simulation modal for prospective topology with the help of MATLAB Simulink environment and also provide a THD analysis and result of proposed system.

A high step up DC input voltage is a most critical requirement of various electrical applications. A high step up DC DC converter using photovoltaic system is a worthy solution of this need. Due to coupled inductor with a capacitor charge in parallel and discharge in series which increase the voltage transfer gain. this converter can accomplish high duty ratio with high step up voltage gain. Also voltage stress on main power switch can be reduced by minimizing the conduction losses and improving efficiency. This paper has incorporated technique for hardware implementation of a high step up DC DC converter using photovoltaic system. In this project coupled inductor with switching capacitor technique are developed to make hardware circuit for input of 12v from the PV panel, output voltage of 100v across the load and power of 354W. Finally, to check its performance the prototype circuit also developed.

Multilevel inverter’s most commonly used configuration of neutral point clamped inverter have vast applications with high power areas, due to its various benefits such as, small dv/dt and total harmonic distortion. However neutral potential balancing problems can be seen in NPC inverters. Various balancing techniques are discussed in past for balancing, but they have vulnerable balancing ability at low PFs and high modulation index. In proposed strategy, the switching vectors that vary the potential at neutral point are changed with N and P type small vectors that do not have effect on neutral point. And for balancing potential at neutral point, the zero and medium vectors are used.

This paper proposes power management of a hybrid structure. The hybrid structure consists of DC micro-grid and AC grid. The advancement in the technologies gives rise to increased use of a DC micro-grid. By increasingly number of micro sources there is requirement of DC micro-grid. By using hybrid structure the efficacy and reliability of overall system increases. To interlink DC micro-grid and AC grid back to back (B2B) converter is used. DC micro-grid can operate independently or in part with AC grid by proposed scheme. The multiple ac-dc-ac conversion is used to achieve power management scheme.

The paper proposes wind energy conversion system modeling with the help of MATLAB Simulink for dc microgrid application. For tracking maximum power available in wind energy, MPPT (Maximum Power Point Tracking) technique is used. The proposed system contains the wind energy conversion model, 3-ph diode bridge rectifier model, MPPT controller and DC-DC converter (Buck converter) model. The DC-DC converter model (buck converter) permits the output of MPPT controller i.e. duty cycle to make adjustment in input voltage of converter for tracking maximum power point from wind generator. The major advantages of the designed system are circuit simplicity as well as simple control algorithm for supplying power to dc microgrid. By making comparison to the system without MPPT control, system with MPPT control gives greater output power.