DEPARTMENT OF ELECTRICAL/ELECTRONIC ENGINEERING

In this paper, a wireless power transmission (WPT) using resonant magnetic coupling for mobile phone charger is presented. Solar energy was used as the energy source to address the scarcity of non-renewable energy sources and tackles the constraints of wired charging technology such as lack of a universal electrical standard, untidiness and inconvenience of wires and wires' wear and tear. The system includes PV panels and battery, oscillator, transmitting coil and receiving coil and rectifier. Proteus 8.1 was used to simulate before implementing in the hardware. The resonant magnetic coupling resonated at 800 kHz ± 10 kHz. The maximum distance to charge a mobile phone was 4 cm at 3.7 V. All the objectives are achieved within the limited time frame. The significance of the project can help to eradicate the use of wires and the need of power plugs. The future research includes the study of efficiency, coil design, system with multiple loads.

The amount of sunlight that strikes the earth’s surface in an hour and a half is enough to handle the entire world’s energy consumption for a full year. Solar Power Technology is one of the major types of green and renewable energy. They are used to convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage. This project is titled “The Design of a Standalone Solar Power System for Four Offices in Electrical/Electronic Department”. The project aims to design and install a Standalone Solar system to provide power supply for the critical loads present in four offices in Electrical/Electronic department, University of Benin. The methodology employed in this project was to calculate and estimate the electrical loads and critical loads in the four offices in Electrical/Electronic department, the sizing and installation of solar panels, batteries, inverter and charge controller, and lastly the test results and maintenance procedures carried out after the installation. This PV system consist of 3.5KVA 220V inverter at 50Hz which incorporates 14 300W-Solar panels all connected in parallel, 2 deep cycle batteries rated 200Ah, 12V connected in series and a 12V 200Amps charge controller. The system was designed to assess the total electric power demand. During the day the output from the PV charges the batteries and feed the load and when power failure occurs from the grid, the stored energy in the battery is again supplied back to the load in order to ensure there is always availability of power in the office

The amount of sunlight that strikes the earth’s surface in an hour and a half is enough to handle the entire world’s energy consumption for a full year. Solar Power Technology is one of the major types of green and renewable energy. They are used to convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage. This project is titled “The Design of a Standalone Solar Power System for Four Offices in Electrical/Electronic Department”. The project aims to design and install a Standalone Solar system to provide power supply for the critical loads present in four offices in Electrical/Electronic department, University of Benin. The methodology employed in this project was to calculate and estimate the electrical loads and
critical loads in the four offices in Electrical/Electronic department, the sizing and installation of solar panels, batteries, inverter and charge controller, and lastly the test results and maintenance procedures carried out after the installation. This PV system consist of 3.5KVA 220V inverter at 50Hz which incorporates 14 300W-Solar panels all connected in parallel, 2 deep cycle batteries rated 200Ah, 12V connected in series and a 12V 200Amps charge controller. The system was designed to assess the total electric power demand. During the day the output from the PV charges the batteries and feed the load and when power
failure occurs from the grid, the stored energy in the battery is again supplied back to the load in order to ensure there is always availability of power in the office