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Analysis and Research on Wind-pv Hybrid Generation

Author: WangXinWei
Tutor: HanXiaoQing
School: Taiyuan University of Technology
Course: Proceedings of the
Keywords: Solar and wind hybrid generating Lead - acid batteries Grid MATLAB PSASP
CLC: TM61
Type: Master's thesis
Year: 2009
Downloads: 235
Quote: 0
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Abstract

Energy is the material basis for the survival and development of human society, but also the basis for the development of the national economy. Fossil energy development and utilization, resulting in atmospheric environmental pollution and ecological damage to the environment. Is the gradual depletion of fossil energy, and a wake-up call to the human energy system. Solar and wind energy are non-polluting, renewable energy development and utilization by the concern of countries in the world. Solar and wind power generation has its own advantages, but they are subject to the environmental impact of climatic and geographical constraints. Of a monsoon climate region, the general winter wind, solar radiation intensity; summer wind, solar radiation intensity, the electric power generation in two ways to complement each other and use, to improve the stability and reliability of the power generation. Based on the characteristics of solar power and wind power generation, research and analysis complementary to solar and wind power generation, the main contents are as follows: 1, solar power at home and abroad, the wind power development status and development prospects described solar and wind hybrid generating The main structure of the system and clear to study this topic. 2 the basic principle and output characteristics of the solar cell power generation; establish the mathematical model of the array of solar power generation, using MATLAB software, to achieve a simulation of the solar power generation; analyzes the changes in solar radiation intensity and a solar battery itself temperature changes of the solar power generation array output. 3, light and temperature changes will affect the power output of the solar power array, in order to remain at the maximum power output of solar power array, the paper analyzes the working principle of the maximum power point tracking (MPPT). On the basis of the simulation model of the solar power array, using constant voltage control method and the disturbance observer Control Act to achieve maximum power tracking solar power array. And both MPPT control method were compared and analyzed. 4, taking into account the solar power array DC power distribution network through the inverter control incorporated into paper using current type hysteresis comparative tracking control three-phase AC inverter for solar power array. 5, the study analyzed the asynchronous operating characteristics of the wind turbine. Existing simulation model based on the wind turbine to the grid, the power output of the the observed wind farm in the case of various wind speeds, The resulting asynchronous wind turbines and net power output characteristic curve. 6, the lead-acid battery is an important part of the solar and wind hybrid generating system. Third-order dynamic model for lead-acid batteries, lead-acid battery simulation, simulation fully consider the nonlinear dynamic characteristics of lead-acid batteries and lead-acid battery specific charge and discharge, and temperature sensitivity characteristics. 7 using PSASP software impact analysis of the distribution network of solar and wind hybrid power plant access. The solar and wind hybrid power plant access to the distribution network, the impact of the the grid steady state voltage distribution;, solar and wind hybrid power plant transient stability of the distribution network in the case of start, exit and disturbance.

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