The paper presents a critical analysis of the current status in the field of Power Hardware in the Loop testing. The authors first summarize their experience in the development of a platform for an industrial application. Starting from the results obtained in this previous project, the authors then illustrate the path towards a more standardized and user-friendly platform. The new platform architecture presented in this paper is supposed to achieve significant improvement both in the bandwidth of the hardware/software interface and in the quality of the user interface.
this work introduces the use of a mobile agent for the purpose of power quality assessment in systems with distributed control. The mobile agent introduced here leverages on the agentbased distributed control of the electrical loads of a power electronic distribution system. While the stationary agents control local loads autonomously and are capable of negotiations for reconfiguration purpose, they have to rely on external resources for certain types of more sophisticated evaluations of operating condition, such as power quality pollution. The authors have already considered the option of a stationary monitoring agent capable ofproviding these information and the option ofembedding additional algorithms in the load agents. In this work a new approach based on a mobile agent is investigated. The advantage of such solution consists primarily in its flexibility, in fact the mobile agent can be easily re-deployed to serve various purposes exploiting the distributed computational capability. routines when needed, without integrating these routines in the stationary agents. A very targeted application to power quality issues can be found in [14].The framework of this work is the control of power electronic systems, that is, power systems where power flow is fully controlled, in particular through converters feeding DC zones, [6], from the main three-phase AC distribution system. These systems are currently under consideration for the future all-electric ship of the US Navy. Furthermore, their successful implementation would greatly benefit the operation of terrestrial systems, such as microgrids and in the longer term, terrestrial power distribution systems in general.
A multi-agent framework for monitoring and control of power electronics systems may comprise agents with different tasks: strictly measurement, control, computation, decision making, simulation and more. Each task is best performed within a dedicated environment: LabVIEW, Matlab, custom simulators and more. The focus of this work is a heterogeneous agent-based monitoring and control system; the aim of this work is to allow the use of interactive and proactive capabilities proper of agents within this complex environment. For this purpose interfaces between the agent environment and the measurement, control and simulation environment have been implemented. The application presented in this work is a limitedpower, power electronics system. The experimental results of this application demonstrate how a multi-agent architecture can be usefully employed to coordinate the roles and operations performed by the agents. In particular, the results show the capability of the multi-agent system to perform load reconfiguration to allow for a sudden increase in power demand.
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