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摘要: 讨论加权广义预测控制算法(WGPC),通过定义过渡时域和在性能指标中引入加权 多项式,限制预测时域大于控制时域与过渡时域的和,保证了预测控制算法的稳定性;给出 了控制增量的表达式.研究表明,算法不仅能保证系统的稳定性且计算量没有增加,且可退 化为带有终端等式稳定性约束的预测控制算法,从而可以进行统一分析.加权多项式根据一 个虚拟的输出反馈来设计,数值仿真结果说明了该方法的有效性.Abstract: A stable generalized predictive control is proposed. The closed-loop stability is guaranteed by the added weighted polynomials in the performance index and the condition that the predictive horizon is greater than the transitive horizon plus the control horizon. The calculation burden is not increased and this algorithm call recede to the terminal constraint generalized predictive control. The weighted polynomials are decided by a virtual output feedback control. An example is given to illustrate the effectiveness of this method.
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Key words:
- General predictive control /
- stability /
- weighted polynomial /
- transitive horizon
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