Solar Energy Light Source Tracking And Energy Feedback System

With the global energy shortage and the growing problem of environmental pollution, looking for new energy has become the reality that countries must face. As we all know, the abundant solar energy is the cleanest in the world, most of the repeated use of large-scale development of renewable energy, people pay more and more attention to and approve solar photo voltaic power. In recent years, photo voltaic grid connected power generation technology has become the mainstream of photostatic power generation. Therefore, this paper is from the solar energy source tracking and energy feedback to research, efficient use of solar energy, reduce environmental pollution.In this paper, the object for the solar energy light source tracking and energy feedback system:first from structure of solar panels, a generator to study how to convert solar energy into electrical energy; secondly uses C8051F330 microcontroller output a series of sequence control pulse signal, control step motor positive rotation or reverse rotation, in order to achieve accurate tracking of the sun light; again, on the most important reservoir of this system can element lead-acid battery maintenance and charge discharge characteristics to carry on the research analysis, from the structure of lead-acid battery, charge and discharge principle, cell polarization in-depth study, so that a better application to the system. Finally, after comparing the control method of the current mainstream inverter circuits, the paper takes the SPWM based voltage output grid control strategy to realize the overall function of the system. Using the single chip SPWM wave generated inside the microcontroller, using the program to control the duty cycle of the SPWM wave, get the ideal sine wave output waveform, realize the power feedback application.Through the research of this system, the power of DC conversion into 220V can be stored in the battery when the main power is no electricity. This system has a wide application prospect for the lack of electricity remote and rural household electricity.