Abstract:In the last decade, the open source community has expanded to make it possible for people to build complex products at home. [1] In this thesis a two-wheeled self-balancing robot has been designed. These types of robots can be based on the physical problem of an inverted pendulum [2]. In this paper, we can see the design, construction and control of a two-wheel self-balancing robot. This system consists of a pair of DC motor and an Arduino UNO R3 microcontroller board, make a robot which can balance itself on two wheels the platform will not remain stable itself. Our job will be to balance the platform using distance sensors and to maintain it horizontally. At first, we have decided to just balance the robot on its two wheels

Keywords:Robot, Arduino, AT mega 328, Control Systems, PID controller, Linear Quadratic Regulator

Abstract:The Electronic based FACTS controllers are static equipment. Its principle purpose is to control AC transmission. The parameters of FACTS are enhancement of controllability, ability of power transfer, control of line impedance, load angle and the magnitude of bus voltage. A unified power controller is to be a static device and this system device should have quick reactive transmission. This paper focuses on the issues like voltage sag and swell of power quality. DPFC is used to moderate the voltage variation and improve power quality and also used to couple the phase controllable bridges to produce current which is injected into a transmission line by using series of transformers. The UPFC is a combination of a static synchronous compensator (STATCOM) and a static synchronous series compensator (SSSC) which is coupled with common DC link. The DPFC eliminates the common dc link between the shunt and series converters and also it performs in transmission line to exchange real power between converters at the 3rd harmonic frequency. The DPFC employs several 1-phase converters like D-FACTS concepts as the series compensator. These concepts reduce the rating of the components and offer a high reliability. Since the DPFC can immediately control the active and reactive power flow and the voltage magnitude, it implies a great potential for power oscillation damping. The case study contains a DPFC located in an exceedingly single-machine infinite bus power grid with 2 parallel transmission lines that simulated in MATLAB/Simulink. The bestowed simulation results of a DPFC device wont to improve the facility quality.

Keywords:Power Quality, voltage Sag and voltage Swell, Unified Power Flow Controller, Distributed Power Flow Controller

Abstract:The renewable energy is vital for today’s world as in near future the non-renewable sources that we are using are going to get exhausted. The solar vehicle is a step in saving these non-renewable sources of energy. This paper discusses the application of solar energy to power up the vehicle.The basic principle of solar-based electric vehicle is to use energy that is stored in a battery during and after charging it from a solar panel. The charged batteries are used to drive the motor which serves here as an engine and moves the vehicle in reverse or forward direction. The Photo Voltaic (PV) Module may be connected either in parallel or series, but it’s costlier. Thus to make it cost effective; power converters and batteries are been used. The electrical charge is consolidated from the PV panel and directed to the output terminals to produce low voltage (Direct Current). The charge controllers direct this power acquired from the solar panel to the batteries. According to the state of the battery, the charging is done, so as to avoid overcharging and deep discharge. The voltage is then booted up using the boost DC-DC power converter, and then an inverter through which DC power is converted to AC power ultimately running the BLDC motor which is used as the drive motor for our vehicle application. This paper focuses on the design, simulation and implementation of the various components namely: solar panel, charge controller, battery, DC-DC boost converter, DC-AC power converter (Inverter circuit) and BLDC motor required for the vehicle application. All these components are studied in real time and also modeled individually using MATLAB/SIMULINK and the complete hardware integration of the system is tested to meet up the application’s requirement.

Keywords:Photo Voltaic, Brushless DC motor, Field Programmable Gate Array, Active Neutral Point Clamped Multilevel Inverter

Abstract:The two phase interleaved buck converter (IBC) for low input voltage (battery or photovoltaic) applications. The interleaved multi-channel converter is very popular these days because of its ability to reduce current ripples. In high power applications, parallel operation of buck converter is recommended. The steady state performance of the interleaved buck converter is investigated by MATLAB/simulation. The IBC is designed for low input voltage application. The modeling and analysis is carried out considering the parasitic elements of all the elements and devices. The IBC is modeled and analyzed using state-space averaging technique and analysis is carried using small signal analysis. The analog PID controller is designed based on the design parameters of the converter and simulated in open loop and closed loop.

Keywords:Interleaved Buck converter, small signal analysis, state space technique, continuous conduction mode

Abstract:Due to increase in pollution, monitoring of water quality and biodiversity is very important for day to day life. Many revolutionary changes are possible in these research areas with new technologies. This monitoring process can be carried out with the help of Internet of Things. The water quality may differ from place to place depending upon the conditions prevailing in a particular area. The basic method for testing the water is to take samples of the water and test it manually to find water's pH, temperature, turbidity, dissolved oxygen etc. Here we propose a new methodology for measuring and monitoring water quality parameters using Raspberry pi. Here remote real time monitoring is made possible by making Raspberry pi as a web server. This system can also be used as warning system in case of over pollution

Keywords:Dissolved oxygen, Internet of Things, pH, Turbidity, Raspberry Pi, Water Quality