光伏并网接入配电网的太阳能发电系统设计

摘要

Design of the power grid system can reduce the failure of power grid transmission and improve the efficiency of the distribution network.The current approach uses one -off energy sources such as oil,coal and natural gas to generate power generation systems.Because the fossil energy,in essence,is tens of thousands of years by the part of the solar radiation to the earth's energy,the energy consumption is fast,lead to an unstable power system operation.In this paper,the design method of solar power generation system for the grid connection of photovoltaic network is proposed.The method of photovoltaic(pv)grid access distribution network are studied,using the graphical meth-od was introduced in detail and the network and access point,the hardware part of the system through the photovoltaic array and integration framework and inverter unit VSR,AC power distribution unit and discharge power supply circuit module and system,to form a solar photo-voltaic(pv)grid access power distribution network system construction.Three-phase bridge structure to design circuit for solar Power gen-eration system,solar Power generation system of temperature sampling module design,using the temperature sensor AD590,according to the TLP250 drive Power MOSFET control module to form a complete discharge,on the basis of photovoltaic array,using 80C196MC can flow control inverter,including photovoltaic(pv)grid inverter module.The software part of the system is implemented using the solar power generation mathematical model that builds the photovoltaic network connected to the grid.The experimental results show that the proposed method effectively uses renewable resources and green energy,and realizes the stable design of power generation system.%对配电网发电系统进行设计,可以减少电网输电时产生的故障,提高配电网运行效率;当前方法利用一次性能源,例如石油、煤炭以及天然气等化石能源实现发电系统的设计;由于化石能源在本质上,是数万年以来由太阳能辐射至地球的一部分能源,该能源消耗快,导致发电系统运行不稳定;为此,提出光伏并网接入配电网的太阳能发电系统设计方法;该方法对光伏并网接入配电网进行研究,利用图解的方式详细介绍并网点及接入点,系统的硬件部分通过光伏阵列以及一体化框架、逆变单元 VSR、交流配电单元以及放电模块和系统电源电路,组建太阳能光伏并网接入配电网发电系统构造;采用三相桥结构对太阳能发电系统电路进行设计,太阳能发电系统的温度采样模块设计中,利用的是温度传感器AD590,根据 TLP250驱动Power MOSFET 完成放电控制模块的组建,依据光伏阵列、利用80C196MC等可逆变流控制组建光伏并网逆变模块;系统的软件部分利用构建光伏并网接入配电网的太阳能发电数学模型实现;实验证明,所提方法有效利用可再生资源与绿色能源,实现发电系统的稳定设计.