一种新型绿色能源并网发电实验平台设计

介绍了一种新型绿色能源并网发电实验平台设计和实现方案。本实验平台是以C8051F120为控制核心，通过采样市电电网信号，实现电网电压频率和相位追踪的并网发电模拟装置。实验平台以IGBT单相全桥作为逆变主电路，利用自行绕制的电感组成LCL滤波器进行滤波，通过软件方式生成正弦波脉宽调制波（SPWM）来实现最大功率追踪（MPPT）。实验平台具有软硬件自动过流保护和欠压保护功能，另外系统硬件电路简单，造价低廉，在教学经费有限的情况下对高年级电气专业学生的实习和实践提供了硬件保证。

Design of new green energy grid connected generating experiment platform

This paper introduces the design and implementation scheme of a new type of green energy power generation experiment platform. Based on C8051F120 as the control core, the experimental platform is a simulation device to achieve the realization of grid connected voltage frequency and phase tracking by sampling the city power network signal. Using LCL filter made by inductance self winding to filter, the experimental platform is based on IGBT for single phase full bridge inverter main circuit to generate the sine pulse width modulation wave (SPWM) by means of software to achieve the maximum power point tracking (MPPT). The experimental platform has software and hardware automatic over current protection and low voltage protection function. In addition, the hardware circuit of the system is simple and cost low, which provides guarantee for the practice of senior grades electrical majors under the condition of limited education funds.