摘要
提出并设计了一种双向逆变器的太阳能供电系统,该系统仅仅需要单一颗微控制芯片ds PIC30F4011就可以控制系统的前级和后级电路。该系统可以操作在市电并联和功因修正两种模式下,这样可以保证直流侧电压稳定在某一个范围。并且本系统不需要蓄电池等储能设备。系统的控制方法使用了预测电流控制法和正弦波调制准则,并利用高频的驱动信号来降低后级电路输出电流的谐波。最后,实验和模拟的结果都可以验证该系统的可行性、有效性和稳定性。
The analysis, design, and simulation of a photovoltaic power system with bi-directional inverter were presented. The system could be controlled with a single-chip microcontroller, such as ds PIC30F4011. The bi-directional inverter could fulfill grid connection and rectification with power factor correction to regulate the dc bus to a certain range of voltages. So energy storage elements wasn＇t needed to buffer power. But the two stage series could cause high current harmonic, so a predictive current control and modulation principle for the bi-directional inverter were designed and operated in high frequency to reduce the current harmonic. Simulation and experimental results illustrate the discussed features and significantly demonstrated its feasibility, reliability, and stability.
出处
《电源技术》
CAS
CSCD
北大核心
2016年第3期631-632,637,共3页
Chinese Journal of Power Sources
关键词
太阳能供电系统
双向逆变器
市电并联
功因修正
预测电流控制法
photovoltaic power system
bi-directional inverter
grid connection
power factor correction
predictive current control
