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Most of the distance relays base their operation on the measured apparent fault impedance. These relays are bound to have an error inflicted by the unknown remote end parameters and fault resistance. This paper presents a method, which diminishes such errors using optimization techniques. The proposed method executes a system model unknown parameter estimation by adjusting model output to measurements...
Stability analysis of micropower networks is gaining importance given the dwindling gap of power generation and demand as well as increasing penetration of intermittent renewable energy sources. Instead of using prevalent small-signal analysis-based approaches, with predictions typically limited to the vicinity of the equilibrium, the outlined approach provides a sense of global/semiglobal stability...
This paper investigates the use of adaptive backstepping as a decentralized control strategy for voltage stability of DC microgrids where the loads and generators are interfaced through power electronic converters. The stabilizing control of the bus voltages resides in the generation side interfacing converters. The loads are tightly regulated and exhibit Constant Power Load (CPL) behavior. This can...
The development of an intelligent control solution for a wide range of diesel generators is discussed. Compared with most existing solutions, the advantages of the proposed solution lie in two folds: (i) The proposed control has the plug-and-play capability which is reflected by an automatic recognition procedure when it is plugged into a specific diesel generator, such that some extensive manual-tuning...
This paper presents a novel average voltage estimation model of a Voltage Source Inverter (VSI) for Permanent Magnet Synchronous Generator (PMSG) drive systems which when included in a complete electromechanical system model results in significantly reduced simulation times. Sinusoidal Pulse Width Modulation (PWM) control techniques are implemented with the proposed model enabling effective control...
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