火电单元机组协调系统的自抗扰控制方案研究  

A STUDY OF ACTIVE DISTURBANCE REJECTION CONTROL ON UNIT COORDINATED CONTROL SYSTEM IN THERMAL POWER PLANT

作　　者：黄焕袍[1] 武利强[2] 韩京清[2] 高峰[3] 林永君[3] 

机构地区：[1]中国电力科学研究院,北京100085 [2]中国科学院数学与系统科学研究院系统科学研究所,北京100080 [3]华北电力大学,河北保定071003

出　　处：《中国电机工程学报》2004年第10期168-173,共6页Proceedings of the CSEE

基　　金：国家自然科学基金项目(60174027)~~

摘　　要：主要研究新型实用非线性自抗扰控制技术(ADRC)在火电单元机组协调控制系统中的应用。ADRC 的主要特性是对扩张状态——系统未建模动态摄动和未知外扰的总和作用量的实时估计,并在控制信号中补偿掉,这也是实现对不 确 性 强 非 线 性 对 象 的 实 时 动 态 反 馈 线 性 化 的 关键。对所提出的单元机组协调系统的自抗扰控制方案在克服机炉对象强非线性、不确定性、时滞、强耦合以及闭环系统的稳定性方面进行了原理性分析。在电厂热工过程控制实时仿真平台 STAR-90 上的仿真结果表明 ADRC 协调控制策略的有效性和先进性。The new nonlinear control technology–Active Disturbance Rejection Control is introduced, and the novel unit ADRC coordinated control scheme for thermal power generator unit is proposed. The key element of ADRC is Extended State Observer (ESO). The real-time dynamic linearization is implemented by disturbance estimation via ESO and disturbance compensation via control law, instead of differential geometry based feedback linearization and direct feedback linearization theory which need accurate mathematical model of plant. The decoupling for MIMO coordinated system of Boiler- Turbine Unit is also easily implemented by employing ADRC. The principal analysis and the simulation results on STAR-90 show that the ADRC coordinated control scheme can effectively solve problems of strong nonlinearity, uncertainty, coupling, large time delay. And it can improve greatly the control performance of coordinated control system. The structure of ADRC coordinated control scheme is simple and clear. It is evident that the proposed scheme lends itself well in providing innovative solutions to practical unit coordinated system problems.

关 键 词：ADRC 对象 火电单元机组 自抗扰控制 实时仿真 仿真结果 未建模动态 协调控制系统 电厂 程控 

分 类 号：TM621.6[电气工程—电力系统及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]