Virtual queue based distributed data traffic scheduling in WSNs for distributed voltage control in smart micro-grid

As an integral part of cyber physical systems (CPSs), a wireless sensor network (WSN) consist of spatially distributed autonomous devices that use sensors to monitor physical dynamics. In this paper, the scheduling of packet transmission over multi-hop wireless ad hoc sensor networks is studied for the purpose of system state stabilization. To measure the effective information amount of different packets, the concept of virtual queue is defined. The impact of transmission time delays on virtual queue lengths is studied for the formulation of distributed scheduling strategy. The scheduling method is then applied in the context of voltage control in microgrid and validated by numerical simulations.

[1]  H. Vincent Poor,et al.  Multicast Routing for Decentralized Control of Cyber Physical Systems with an Application in Smart Grid , 2012, IEEE Journal on Selected Areas in Communications.

[2]  Masatoshi Ishikawa,et al.  A sensor selection method considering communication delays , 2004, IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004.

[3]  Edward A. Lee.  Cyber Physical Systems: Design Challenges , 2008, 2008 11th IEEE International Symposium on Object and Component-Oriented Real-Time Distributed Computing (ISORC).

[4]  Alfredo Vaccaro,et al.  The role of Cooperative Sensor Networks in wide Area Power systems Communication , 2010 .

[5]  K. Tomsovic,et al.  Application of linear matrix inequalities for load frequency control with communication delays , 2004, IEEE Transactions on Power Systems.

[6]  Richard M. Murray,et al.  On a stochastic sensor selection algorithm with applications in sensor scheduling and sensor coverage , 2006, Autom..

[7]  C.M. Colson,et al.  A review of challenges to real-time power management of microgrids , 2009, 2009 IEEE Power & Energy Society General Meeting.