融合卡尔曼滤波的太阳能供电系统设计

Design of solar power supply system with Kalman filter

为了满足太阳能供电系统对于输出功率稳定、太阳能转化率高、低成本、小型化和便于部署的性能要求,提出了一种应用卡尔曼滤波算法和MPPT技术的追光式小型太阳能供电系统。设计采用光电法追踪太阳位置,对控制过程进行了建模并在SIMULINK中进行了仿真。通过在经典PID控制的输出端加入卡尔曼滤波器以使系统达到最佳的控制效果。在功率输出端加入MPPT控制电路,使太阳能电池板处于最大功率输出状态。实验结果表明,该系统具有较高的太阳能利用率,良好的功率输出效果,有较高的实际应用价值。

In order to meet the performance requirements of the solar power supply system for stable output power, high solar conversion rate, low cost, miniaturization and easy deployment, a small-scale solar power supply system with track the sun using Kalman filtering algorithm and MPPT technology is proposed. The design adopts photoelectric method to track the position of the sun. The control process is modeled and simulated in SIMULINK. It is designed to add a Kalman filter to the output of the classic PID control to make the system achieve the best control effect. The MPPT control circuit is added to the power output end to make the solar panel in the maximum power output state. The experimental results show that the system has high solar energy utilization, good power output effect, and high practical application value.