Partial shading reduces the power output of solar modules, generates several peak points in P-V and I-V curves and shortens the expected life cycle of inverters and solar panels. Electrical array reconfiguration of PV arrays that is based on changing the electrical connections with switching devices, can be used as a practical solution to prevent such problems. Valuable studies have been perfor...

Nowadays on-line reconfiguration for computer networks is pursued as an alternative approach to keep performance levels when a mal function is presented in the system. In this case, reconfiguration is proposed in three stages. Firstly , computer network presents a degradation in time communication due to the appearance of certain local faults. Secondly, based upon this scenario a strategy for o...

Forthcoming networked systems require mechanisms for on-the-fly reconfiguration in their protocol stacks to be able to operate in different situations and networks. Since every protocol in a protocol stack has at least one peer protocol in another system, dynamic reconfiguration of a protocol raises the need for reconfiguration in the peer stack. For an assured dynamic (run-time) reconfiguratio...

Enterprise Applications (EA) are complex software systems for supporting the business of companies. Evolution of an EA should not affect its availability, e.g., because of a temporal shutdown, business operations may be affected. One possibility to address this problem is the seamless reconfiguration of the affected EA, i.e., applying the relevant changes while the system is running. Our approa...

Reconfigurable FPGAs provide designers with new implementation approaches for designing high-performance applications. This paper discusses two basic implementation approaches with FPGAs: compiletime reconfiguration and run-time reconfiguration. Compile-time reconfiguration is a static implementation strategy where each application consists of one configuration. Run-time reconfiguration is a dy...

A new method for the control reconfiguration of stable Hammerstein systems after actuator faults is described. The class of Hammerstein systems contains input-saturated systems, which are ubiquitous in practice. The new reconfiguration approach uses a virtual actuator that permits to keep the nominal controller in the loop. The concept of virtual actuators is extended to reflect the nonlinear p...

Reconfiguration is concerned with relationships among solutions to a problem instance, where the reconfiguration of one solution to another is a sequence of steps such that each step produces an intermediate feasible solution. The solution space can be represented as a reconfiguration graph, where two vertices representing solutions are adjacent if one can be formed from the other in a single s...

To apply run-time reconfiguration there is need for an appropriate model to understand reconfiguration. System on chip technology allowed the use of complex low gate/price new type of FPGA. Modelling reconfiguration and using Matlab tools is possible to simulate and rapid prototype vector control systems. The paper presents the reconfigurable models as introduced by Luk, Cheung, Shirazi and Ath...

optimal capacitor placement, considering power system loss reduction, voltage profile improvement, line reactive power decrease and power factor correction, is of particular importance in power system planning and control. the distribution system operator calculates the optimal place, number and capacity of capacitors based on two major purposes: active power loss reduction and return on invest...

A major asset of modern systems is to dynamically reconfigure themselves to cope with failures or component updates. Nevertheless, designing such systems with off-the-shelf components is hardly feasible: components are blackboxes that can only interact with others on compatible interfaces. Part of the problem is solved through Software Adaptation techniques, which compensate mismatches between ...