光伏并网逆变器控制技术研究

Research on Control Technology of Photovoltaic Grid-connected Inverter

随着社会的发展,能源缺口逐渐增大,为更好地满足能源供应和环保要求,有必要大力开发新能源。光伏发电由于其清洁、高效等优点,成为目前国家大力推广的清洁能源之一,光伏发电技术相关的研究也不断增加。文章在此背景下研究了光伏逆变器控制问题,接着对光伏逆变器的结构和原理进行说明,同时简述了广义预测控制算法相关情况,设置了控制律,依据自适应函数对步长进行设定;最后,在一定谐波率条件下仿真预测,将预测控制与传统控制方法仿真测试。所得结果发现这种控制方法表现出良好的稳态性优势。

With the gradual increase of the energy gap in social development,in order to better meet the requirements of energy supply and environmental protection,it is necessary to vigorously develop new energy.Photovoltaic power generation has become one of the clean energy vigorously promoted by the country due to its advantages of cleanness and high efficiency.Research related to photovoltaic power generation technology is also increasing.In this context,the control problem of photovoltaic inverter is studied in this paper,and then the structure and principle of photovoltaic inverter are explained.At the same time,the relevant situation of generalized predictive control algorithm is briefly described.Make settings;finally,simulate and predict under certain harmonic rate conditions,and simulate and test the predictive control and traditional control methods.The obtained results found that this control method exhibits good steady-state advantages.