Optimization of architecture design has recently drawn research interest. System deployment optimization （SDO） refers to the process of optimizing systems that are being deployed to activi- ties. This paper first fo...Optimization of architecture design has recently drawn research interest. System deployment optimization （SDO） refers to the process of optimizing systems that are being deployed to activi- ties. This paper first formulates a mathematical model to theorize and operationalize the SDO problem and then identifies optimal so- lutions to solve the SDO problem. In the solutions, the success rate of the combat task is maximized, whereas the execution time of the task and the cost of changes in the system structure are mini- mized. The presented optimized algorithm generates an optimal solution without the need to check the entire search space. A novel method is finally proposed based on the combination of heuristic method and genetic algorithm （HGA）, as well as the combination of heuristic method and particle swarm optimization （HPSO）. Experi- ment results show that the HPSO method generates solutions faster than particle swarm optimization （PSO） and genetic algo- rithm （GA） in terms of execution time and performs more efficiently than the heuristic method in terms of determining the best solution.展开更多
This paper proposes a novel system deployment principle for master/slave islanded alternating current(AC)microgrids,with which decentralized control can be achieved without communications.The net power of a microgrid,...This paper proposes a novel system deployment principle for master/slave islanded alternating current(AC)microgrids,with which decentralized control can be achieved without communications.The net power of a microgrid,including active and reactive power,is metered and compensated locally and independently by its units.This can benefit a microgrid regarding system expandability,flexibility,and plug-and-play.The proposed strategy is demonstrated in a typical islanded AC microgrid with diesel generators,renewable generation,and hybrid storage.A diesel generator set with constant speed governor and static exciter runs to build up and dominate the main AC bus.An ultra-capacitor unit suppresses fastvarying power fluctuations,and the battery shares part of the slow-varying power component.The diesel generator set only provides slow-varying power within a lower limit,which can avoid dramatic accelerations and decelerations and low load-rate operation.Finally,simulations on MATLAB/Simulink are carried out to verify the proposed strategy in typical scenarios.展开更多
基金supported by the National Natural Science Foundation of China(71171197)the National Basic Research Program of China(973 Program)(613154)
文摘Optimization of architecture design has recently drawn research interest. System deployment optimization （SDO） refers to the process of optimizing systems that are being deployed to activi- ties. This paper first formulates a mathematical model to theorize and operationalize the SDO problem and then identifies optimal so- lutions to solve the SDO problem. In the solutions, the success rate of the combat task is maximized, whereas the execution time of the task and the cost of changes in the system structure are mini- mized. The presented optimized algorithm generates an optimal solution without the need to check the entire search space. A novel method is finally proposed based on the combination of heuristic method and genetic algorithm （HGA）, as well as the combination of heuristic method and particle swarm optimization （HPSO）. Experi- ment results show that the HPSO method generates solutions faster than particle swarm optimization （PSO） and genetic algo- rithm （GA） in terms of execution time and performs more efficiently than the heuristic method in terms of determining the best solution.
文摘This paper proposes a novel system deployment principle for master/slave islanded alternating current(AC)microgrids,with which decentralized control can be achieved without communications.The net power of a microgrid,including active and reactive power,is metered and compensated locally and independently by its units.This can benefit a microgrid regarding system expandability,flexibility,and plug-and-play.The proposed strategy is demonstrated in a typical islanded AC microgrid with diesel generators,renewable generation,and hybrid storage.A diesel generator set with constant speed governor and static exciter runs to build up and dominate the main AC bus.An ultra-capacitor unit suppresses fastvarying power fluctuations,and the battery shares part of the slow-varying power component.The diesel generator set only provides slow-varying power within a lower limit,which can avoid dramatic accelerations and decelerations and low load-rate operation.Finally,simulations on MATLAB/Simulink are carried out to verify the proposed strategy in typical scenarios.
