• Conference Object  

      Control of distributed energy resources for reactive power support 

      Robbins, B. A.; Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N. (2011)
      This paper proposes a method to utilize distributed energy resources (DERs) to provide reactive power support for voltage control in electric power systems. Rather than controlling each of these resources directly, a ...
    • Article  

      Distributed cycle detection and removal 

      Oliva, G.; Setola, R.; Glielmo, L.; Hadjicostis, Christoforos N. (2018)
      In this paper, we provide distributed algorithms to detect and remove cycles in a directed relational graph by exploiting the underlying undirected communication graph; the relational graph models a relation among the ...
    • Conference Object  

      Finite-time approximate consensus and its application to distributed frequency regulation in islanded AC microgrids 

      Cady, S. T.; Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N. (IEEE Computer Society, 2015)
      In this paper, we propose an iterative algorithm that allows a set of interconnected nodes to reach approximate consensus in a finite number of steps, i.e., Allows the nodes to reach agreement to within a pre-specified ...
    • Article  

      Power system monitoring using Petri net embeddings 

      Hadjicostis, Christoforos N.; Verghese, G. C. (2000)
      A failure in a power transmission line causes a number of circuit breakers to activate in an effort to isolate the failure and prevent it from corrupting the rest of the power system. Based on information from these ...
    • Conference Object  

      Risk-sensitive control, differential games, and limiting problems in infinite dimensions 

      Charalambous, Charalambos D.; Naidu, Subbaram; Moore, Kevin L. (IEEE, 1994)
      In this paper we present the solutions of the stochastic finite and infinite horizon risk-sensitive control problems in infinite dimensions, with μ, ε > 0, respectively, representing the risk-sensitivity and small noise ...
    • Conference Object  

      Robust implementation of distributed algorithms for control of distributed energy resources 

      Cady, S. T.; Domínguez-Garcia, A. D.; Hadjicostis, Christoforos N. (2011)
      This paper discusses the hardware implementation of distributed control strategies that could be used to enable the utilization of distributed energy resources for the provision of grid support services. Although the ...
    • Conference Object  

      Supervisory control strategies for enhancing system security and privacy 

      Hadjicostis, Christoforos N. (2010)
      Enhancing the security and reliability of automated systems that control vital national infrastructures, such as energy and water distribution systems, has recently emerged as a critical aspect of maintaining, protecting, ...