| Title |
A Study on the Power System Control and Monitoring Technique Using CAN |
| Authors |
정준홍(Jung, Joon-Hong) ; 최수영(Choi, Soo-Young) ; 박기헌(Park, Ki-Heon) |
| Keywords |
CAN(Controller Area Network) ; NCSs(Networked Control Systems) ; time delay ; stability analysis |
| Abstract |
In this paper, we present a new control and monitoring technique for a power system using CAN(Controller Area Network). Feedback control systems having co'ntrol loops closed through a network(i.e. Ethernet, ControlNet, CAN) are called NCSs(Networked Control Systems). The major problem of NCSs is the variation of stability property according to time delay including network-induced delay and computation delay in nodes. We present a new stability analysis method of NCSs with time delay exploiting a state-space model of LTI(Linear Time Invariant) interconnected systems. The proposed method can determine a proper sampling period of NCSs that preserves stability performance even in NCSs with a dynamic controller. We design CAN nodes which can transmit control and monitoring data through CAN bus and apply these to NCSs for a power system. The results of the experiment validate effectiveness of our control and monitoring technique for a power system. |