一种微型燃气轮机抗扰控制器设计及验证方法

Design of micro-turbine disturbance rejection controller design and verification method

为了缩短微型燃气轮机(微燃机)控制器的设计周期以及验证试车前控制器性能,提出了一种新颖的微燃机控制器设计和验证方法。考虑微燃机控制系统主要惯性环节得到了稳态工作点处小扰动传函模型,利用微燃机模型与感应电机调速系统动态模型的相似性,得到微燃机模拟系统,基于模拟系统模型设计了两种控制器并进行了性能对比。针对实际系统中负载扰动引起的转速波动大、控制器动态调节时间长的问题,提出负载前馈控制。仿真和实验结果验证了所提微燃机控制器设计和验证方法的正确性和有效性,负载前馈控制明显提高了转速控制器抗负载扰动的性能。

Abstract：In order to shorten the design cycle of the micro-turbine controller and verify the performances before actual test, micro-turbine controller design and verification methodology were proposed. Consider- ing the main inertia of the micro-turbine control system gets the small perturbation transfer function model of the steady-state operating point, dynamic model similarity between micro-turbine control system was used and induction motor speed control system the simulation system of micro-turbine was given. Two controllers were designed and the performances were compared based on the simulation system. For resol- ving problems of high speed volatility and long dynamic adjustment time in the actual system, the load feedforward control was proposed. Simulated and experimental results prove that the new micro-turbine controller design and verification method are feasible and effective, and the load feedforward control is validated to enhance the performance of resisting disturbance greatly.