Closed loop control of boost coverter for a led load connected photovoltaic system
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The document describes a method for generating electricity from solar power to power an LED light using solar panels, a DC-DC converter, an inverter, and a microcontroller. Solar panels collect solar energy from sunlight as variable DC power, which is converted to fixed DC by a DC-DC converter and then converted to AC by an inverter to power the LED light. A microcontroller governs the embedded system, while batteries provide backup power when solar power is insufficient.
Closed loop control of boost coverter for a led load connected photovoltaic system
- 2. A method for generating electricity from solar power to the led light with the help of solar panels. The solar panel will generate electrical power that will provide sufficient power to run the led light. Single phase inverter is used to convert DC power to AC power.
- 4. Solar panel collects the solar energy from sun light. It is variable DC power. This variable Dc is converted to fixed DC through a DC to DC converter. This DC is converted into AC by the help of an inverter. This AC power is given to the LED light for its operations.
- 6. DC-DC power converter. With the output higher then the input. Works on the basic principle of inductor to resist the charge in the current. Filters are used to reduce the ripples in the output.
- 8. In the open loop boost converter, the output varies with the variation in the input to the converter . The input to the boost converter varies since it is from the PV module. The output from the PV depends on the sun rays. Hence it is not a constant.
- 10. The output from the boost converter is maintained as a constant. The output from the boost converter is taken as a feedback and the same is compared with the reference value. In this project the reference voltage is maintained as 230v.
- 16. Micro controller is a compact microcomputer designed to govern the operation of embedded systems in motor vehicles, robots, office machines, home appliances, etc. A typical micro controller includes a processor, memory and peripherals.
- 18. Step-up transformer is a device that transfers an alternating current from one circuit to another circuit with an increase of voltage. In the step-up transformer total no of turns in the primary side is greater than the secondary side. In this 48 volt is converted into 220 volts.
- 20. Battery is an electrochemical cell that can be charged electrically to provide a static potential for power or released electrical charge when needed. Lead acid battery is used for this operation. We are using 4 numbers of 6 volt batteries connected in series for the operation.
- 21. Thank you