The Effect Of Small Delays In State-feedbacks On Controllability Of Linear Systems

In this paper, we study the robustness for controllability of linear dynamic systems, which is of great theoretical and practical importance. We prove that if the non-delay system is controllable , then we added a small delay to the system, the new system is still controllable . The sixth chapter based on the theories of grey systems, this paper applies grey Logistic model to electric power demand forecasting of Shanghai from the year 2007 to 2011 and makes the correlation analysis of the factors which will affect the electric power consumption.