this paper proposes an optimal power flow (opf) algorithm by direct load control (dlc) programs to optimize the operational cost of smart grids considering various scenarios based on different constraints. the cost function includes active power production cost of available power sources and a novel flexible load curtailment cost associated with dlc programs. the load curtailment cost is based ...

Power quality monitoring has advanced to an important tool for system evaluation. The increased amount of recorded data requires more sophisticated analysis methods. The paper describes the development and operation of a system for automated classification of power quality events. Different to existing approaches the proposed system introduces a new frame-based event model similar to speech mod...

Power quality has become an important issue in distributed generation nowadays due to the ever increasing use of power electronics and sensitive load equipment. The addition of distributed generation can have a significant effect and increases the complexity of power quality problem. Recognition of power quality problems by analyzing the voltage and current waveform disturbances is a very impor...