The Design And Research Of Wind And Solar Power Generation System On The Landscape

Green, nonpolluting and renewable, wind energy and solar energy contributegreatly to solve the problems such as world energy crisis and environmentaldestruction due to energy utilization. Wind energy and solar energy applicationtechnology in power generation gradually grows mature. The application of windsolar hybrid power system in landscape lamp takes advantages of the complementarilyof the two kinds of energy and overcomes the disadvantages and limitations broughtby the separate use of them, and at the same time increases the system flexibility andstability to make up for the deficiency of traditional power generation. Considerablybright application prospect proves great research value of the subject.Currently there still exist some deficiencies in the application of windsolar hybrid power system in lighting. Low utilization rate of wind and solar energy,weak system stability, and short life of battery are common problems of windsolar hybrid power system at present stage. This study attempts to put forwardimprovement design to solve these problems.Firstly, landscape lamp test bed adopts wind driven generator with vertical axisshaped H to increase the safety of wind driven generator as well as to avoid the effectof wind direction, thus collecting the most wind energy resources in all directions atany time; the instantaneous optimal power of the wind driven generator is given, thereal-time signal of wind speed power is fed back, and the improvedmountain-climbing search method is used, ensuring that the wind generator isworking in the best region which improves the utilization rate of wind energy.Secondly, illuminant servo system is introduced in the photovoltaic modules ofsolar hybrid power system of the test bed, and the photovoltaic panels is controlled bytwo-path stepper motor, which can change the direction of the solar panels accordingto the angle of incidence of light and light intensity, indirectly increasing the lightingarea and the effective light time.Finally, after analyzing the working principles and charge and dischargeperformance of lead-acid battery, the working temperature of battery is controlled,three-stage charging is adopted to ensure the battery charging performance, and thepeak charge voltage and lower limit discharge voltage of the battery is set, effectivelypreventing the overcharge or over discharge of battery and prolonging the life of lead-acid battery.This paper mainly carries on related design and study aiming at the existingproblems of wind solar hybrid system that expounds the improvement design of winddriven generator, the improvement design of solar battery, and the working principleand improvement design of battery. In addition, the optimized wind solar hybridsystem is applied to landscape lamp test and the relevant experimental data isrecorded and analyzed. The feasibility and superiority of system improvement designis proved through the analysis and compare of the data.