基于自适应控制的逆变器实时控制系统设计

通过simulink仿真得到逆变器单纯PID控制系统输出的电压波形，从而选取合适的PID各个参数，再将自适应控制理论与PID控制相结合。以电压误差e(t)为状态变量。根据其大小调整PID各参数。达到实时控制。实验表明，自适应PlD控制相对于单纯的PID控制。在控制精度和稳度等控制品质上有较大的提高，输出更稳定的220V／50HZ电压。

Real-time Control System Design Of 30KVA-Inverter Based On Adaptive PID Algorithm

use simulink emulation tool to get the output voltage of the inverter controlled by PID algorithm ,then choose the best PID parameters .At the other side ,adaptive control theory is applied in this system to adjust the PID parameters .Voltage e(t) is regard as habitus variable ,PID parameters are adjusted according to it. System change its parameters as a real-time controller. The experimental data shows that compared with the original PID algorithm , the adaptive PID algorithm has made much progress in control quality ,such as control precision ,stability ,220V/50HZ output is more stable than original output.