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三相光伏并网逆变器的无差拍控制研究
资料介绍
光伏并网逆变器是整个光伏并网发电系统的核心，逆变器受外部环境和电网的干扰，会导致输出的电能存在畸变和谐波。为使并网发电系统输出高质量的交流电。前级采用双模式Boost升压电路，后级逆变器采用无差拍PWM控制算法．并在Matlab／Simulink环境下进行仿真。仿真结果表明，双模式Boost电路可以更高效实现MPPT（最大功率点跟踪）且减小开关损耗。无差拍控制算法使逆变器输出电流具有快速动态响应跟踪特性，还能有效保护系统的稳定性及降低谐波。
Grid-connected PV inverter is the core of grid-connected PV power system. Under the influences of external environment and power grid, distortion and harmonic may exist in the power output by the inverter. In order to ensure high-quality AC current from grid-connected power system, dual-mode Boost circuit is adopted at the preceding stage, deadbeat PWM control algorithm is applied on inverters at the backward stage and simulation is carried out under Matlab / Simulink environment. According to the simulation, the dual-mode Boost circuit can realize MPPT （Maximum Power Point Tracking） more efficiently and reduce the switching loss, while the deadbeat control algorithm can provide rapid dynamic response tracking for the...
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| 文件名 | 大小 |
| 三相光伏并网逆变器的无差拍控制研究.pdf | 1M |
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