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Hardware implementation of an LQR controller of a drum-type boiler turbine on FPGA

机译：鼓式锅炉汽轮机的LQR控制器在FPGA上的硬件实现

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In a steam power generator, boilers produce steam uninterruptedly in large amounts. The drum boiler system is extremely nonlinear with multi-variable parameters rendering it a very difficult process control problem. The boiler is also inherently unstable due to the effect of the dynamic shrink/swell phenomenon in the drum. Drum boiler systems have been controlled by Single-Input, Single-Output (SISO) Proportional-Integral-Differential (PID) controllers. Such SISO control systems do not take into consideration the interaction between the controlled variables or the effect of demanding load change on boiler dynamics. In this work, we present a hardware-based multi-variable Linear Quadratic Regulator (LQR) controller of the boiler-turbine system. Reconfigurable hardware has been recently used to implement a number of complex control systems due to the performance and flexibility gains of such platforms. The proposed controller is implemented and validated on a Xilinx Artix-7 FPGA AC701 Evaluation Kit. Testing results depict a significant improvement in the control system characteristics compared to the classical PID control techniques.
机译：在蒸汽发电机中，锅炉不间断地大量产生蒸汽。鼓式锅炉系统是极端非线性的，具有多变量参数，这使其成为一个非常困难的过程控制问题。由于汽包中的动态收缩/膨胀现象的影响，锅炉也固有地不稳定。鼓式锅炉系统已由单输入单输出（SISO）比例积分微分（PID）控制器控制。这样的SISO控制系统没有考虑控制变量之间的相互作用或要求的负载变化对锅炉动态的影响。在这项工作中，我们介绍了锅炉涡轮系统的基于硬件的多变量线性二次调节器（LQR）控制器。由于这种平台的性能和灵活性的提高，可重构硬件最近已用于实现许多复杂的控制系统。拟议的控制器已在Xilinx Artix-7 FPGA AC701评估套件上实现和验证。与传统的PID控制技术相比，测试结果显示出控制系统特性的显着改善。

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