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SOLAR BASED WIRELESS POWER TRANSFER

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Name 1 Roll no. 1 Name 2 Roll no. 2

Name 3 Roll no. 3 Name 4 Roll no. 4

ABSTRACT

In the present day, electricity is one of the basic requirements for human beings. But, the process of generating electricity is hazardous to the environment. According to the energy information records approximately 50% of all electricity plants are contaminating coal plants. Various changes in the environment have been seen over the past thirty years, which are injurious to the forthcoming generations of this planet. To overcome this, here is a solution to diminish greenhouse gas emissions into theatmosphere through an alternative power generation. One sustainable technology leading this charge is WPT (wireless power transmission)

The project is a device to transfer power generated by the help of solar panels wirelessly instead of using conventional copper cables and current carrying wires. The concept of wireless power transfer was introduced by Nikolas Tesla. This power is made to be transferred within a small range only for example charging rechargeable batteries etc.

WORKING PRINCIPLE

Solar panels are used to generate the electricity and the power which is then transferred wirelessly. Solar power is a clean, infinite and renewable source of energy and is the future of electric power for us.

The basics of wireless power transmission includes the inductive energy that can be transmitted from a transmitter coil to a receiver coil through an oscillating magnetic field. The DC current supplied by a power source is changed into high frequency AC current by particularly designed electronics built into the transmitter.

In the TX (transmitter) section, the AC current increases in the copper wire that creates a magnetic field. Once the RX (Receiver) coil is moved close to the magnetic field, then the magnetic field can induce an AC current in the receiving coil. Electrons in the receiving device, converts the AC current back into DC current that becomes working power.

To accomplish this, power source (DC current) is changed into high frequency AC (Alternating Current) by particularly designed electronics erected into the transmitter. The AC boosts a copper wire coil in the transmitter, which produces a magnetic field. When the receiver coil is placed in proximity of the magnetic field, the magnetic field can make an AC (alternating current) in the receiving coil. Electronics in the receiving coil then alters the AC back into DC which becomes operating power.

BLOCK DIAGRAM

ABOUT WIRELESS POWER TRANSFER

Wireless power transfer(WPT) orwireless energy transmissionis the transmission ofelectrical energyfrom apower sourceto an electrical, such as anelectrical power gridor a consuming device, without the use of discrete human-madeconductors.

Wireless power techniques fall into two categories, non-radioactive and radioactive. Innon-radioactivetechniques, power is typically transferred bymagnetic fieldsusinginductive couplingbetweencoils of wire. Applications of this type includeelectric toothbrushchargers,RFIDtags, smartcards, and chargers for implantable medical devices likeartificial cardiac pacemakers, and inductive powering or charging ofelectric vehicleslike trains or buses

ABOUT SOLAR POWER

Solar poweris the conversion ofsunlightintoelectricity, either directly usingphotovoltaic(PV), or indirectly using concentrated. Photovoltaic convert light into anelectric currentusing thephotovoltaic effect.

TheInternational Energy Agencyprojected in 2014 that under its "high renewables" scenario, by 2050, solar photovoltaic and concentrated solar power would contribute about 16 and 11 percent, respectively, of theworldwide electricity consumption, and solar would be the world's largest source of electricity.

Photovoltaic were initially solely used as a source ofelectricityfor small and medium-sized applications, from thecalculator powered by a single solar cell to remote homes powered by anoff-gridrooftop PV system. As the cost of solar electricity has fallen, the number of grid-connectedsolar PV systemshasgrown into the millionsand utility-scalesolar power stationswith hundreds of megawatts are being built. Solar PV is rapidly becoming an inexpensive, low-carbon technology to harness renewablefrom the Sun.

COMPONENTS REQUIRED

 HARDWARE

  1. Solar Panels
  2. Transistors
  3. Diodes
  4. Capacitors
  5. Resistors
  6. Copper coils
  7. Led
  8. Microcontroller
  9. LCD 16*2

 SOFTWARE

  1. Microcontroller Hex file generator
  2. Microcontroller Hex file Uploader

APPLICATIONS

Several applications of wireless power transfer are apparent and obvious. Firstly, WPT could eliminate traditional charging systems in place today. Instead of plugging in a mobile phone or laptop via power cord to charge the battery, wireless power can be harnessed and implemented in a home such that a laptop and phone charge continuously and wirelessly without the need for plugging anything in. Higher level applications include charging of electric vehicles (EVs).

Electronic portable devices: Cell phones, laptops, tablets, even smart watches are found all over the globe and are owned and used by billions of people. What these devices all have in common is the need to recharge their internal battery so that the device can be used while mobile. Such is the paradox of portable devices: they provide convenience by running off internal power so they can be used anywhere, but always must return to be tethered to a power cord in order to charge

Electric Vehicles: As concern over global warming and greenhouse gas emissions grows across the globe, the prevalence of electric vehicles has also increased. However, many envision that in the near future, one need only park her car in a pre-determined spot in her driveway and the car will charge wirelessly and automatically

Theoretical applications: Aerial Vehicles and Solar Power Satellites: While portable device and vehicle charging are applications that could be implemented in the near future, some other theoretical applications have been posited for further research and development. One such application is the Stationary High Altitude Relay Platform (SHARP)

REFERENCES