Fault Detection for Quantized Networked Control Systems

作者：Che Wei Wei^*; Mei Zhi Yong; Wang Yu Long

来源：Mathematical Problems in Engineering, 2013, 2013: 157063.

DOI：10.1155/2013/157063

The fault detection problem in the finite frequency domain for networked control systems with signal quantization is considered. With the logarithmic quantizer consideration, a quantized fault detection observer is designed by employing a performance index which is used to increase the fault sensitivity in finite frequency domain. The quantized measurement signals are dealt with by utilizing the sector bound method, in which the quantization error is treated as sector-bounded uncertainty. By using the Kalman-Yakubovich-Popov (GKYP) Lemma, an iterative LMI-based optimization algorithm is developed for designing the quantized fault detection observer. And a numerical example is given to illustrate the effectiveness of the proposed method.

• 出版日期2013
• 单位沈阳大学