摘要
针对实际工程中普遍对控制系统稳定性、小超调和快速性的要求,提出了一种改进的广义预测控制算法。充分利用预测控制的预测功能与信息,用加权向前一步预测控制量对当前控制量进行修正,同时利用控制增量的预测变化趋势,对控制量加权参数进行动态在线调整,从而达到满足响应快速和抑制超调目的。通过用当前输入量与历史对当前预测输入量的加权,使控制输入具有滤波功能从而提高系统的稳定性。仿真结果表明,该算法对抑制超调与改善系统的稳定具有一定效果。
To satisfy the control system re@irements such ms small overshoot, better stability and excellent tracking performance in control engineering, a new generalized predictive control algorithm （GPCI）is brought forward.With the utilization of control increment trend in predictive information, controlled variables can be modified by weighted ahead predictive control, and controlled weighted coefficients can be dynamic regulated on-line, which cause the control system to be small overshoot and quick response. Weighting the current control and the historical predictive control makes the input be provided with filter function, so the system stability is improved. Simulated results show the effectiveness and feasibility of the algorithm,
出处
《控制工程》
CSCD
2007年第5期458-460,464,共4页
Control Engineering of China
基金
河北省重大科技攻关资助项目(012133030D)
关键词
预测控制
稳定性
滤波
超调
predictive control
stability
filter
overshoot
