Experimental Simulation Of A Solar Cell Device

Solar energy is an important part of renewable energy and new energy, photovoltaic solarenergy is the most abundant of the most promising technologies. Photovoltaic power generationsystems can solve our people’s lives in remote areas without electricity. also can make up forthe city problem such as power supply shortage.. In order to perform photovoltaic powergeneration system in the laboratory studies, need an output characteristic curve of the devicecan simulate solar panels. This paper designs a new type of solar cell experiment simulator tosimulate the solar panels to generate electricity..Research work on the principle of solar simulator, proposed the use of digital switchingpower production solar simulator output has ripple glitch problems exist for the solution ofthese problems is given. According to the design requirements and output requirements of thesystem, given the overall design of the device. Simulator consists of two parts of the design:the main power circuit design and control system design.The main circuit is a constant voltage source with an output power by a current control,by adopting the combination of switch power supply and linear power supply way to stabilizethe output voltage. Two main circuit module for the working principle was analyzed, and thedesign of main circuit in detail.The core of the control system controller chooses TMS320F2812of TI company, throughthe design of control system hardware and software, the main circuit implementation of solarpanels output characteristic curve of the simulation. The control system of a switching circuitand the linear regulator circuit of double loop control with the main circuit stable outputvoltage. Use STM32F103design of man-machine interface control chip, which can realizereal-time entry, photovoltaic pv curve under the curve and the curve of load voltage currentdisplay.Based on the above design, set up the experiment simulator prototype1kw solar cells,through the system simulation and prototype test, show that this device can better simulate thesolar cell output characteristics, for the study of the photovoltaic system provide a goodexperiment platform.