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To construct the largest power simulation model with real time digital simulators (RTDS), assignment of the computing resource is an important issue to make the model feasible. For automatic computing resource assignments, the interesting idea of subgraph isomorphism is proposed. Computing units (racks) are connected with communication wires, whereas the power grid is connected with electrical lines...
Failure depth of coal seam floors is one of the important considerations that must be kept in mind when mining is carried out above a confined aquifer. In order to study the factors that affect the failure depth of coal seam floors such as mining depth, coal seam pitch, mining thickness, workface length and faults, we propose a combined artificial neural networks (ANN) prediction model for failure...
Applying SGA to practical large scale power networks reactive power optimization still existing problems like large searching space and time consuming. This paper advanced an improved genetic algorithm combining sensitivity analysis (IGACSA). The new algorithm combined sensitivity analysis to generate initial generation of individuals in stead the way of SGA. The crossover and mutation operation of...
This paper has analyzed the features about the small hydropower stations in ShaoGuan. Combines with the actual situation, the optimum mathematic model is built up. Through the research and improvement on traditional genetic algorithm, the calculating method of the model based on improved genetic algorithm is presented. At last, by calculating the example with two small hydropower stations, it proves...
Web services are gaining acceptance as a standards- based approach for integrating loosely coupled services. Achieving high levels of reliability and availability of service-oriented application server in spite of service or infrastructure failures poses new challenges. According to the characteristic of performance parameters of service-oriented application sever, a new software aging forecasting...
A practical reactive power/voltage control system for regional power grid is introduced in this paper. Two-level hierarchy strategy is adopted in the control system. In the regional-level control, one day is divided into 24 time intervals, in each hour, family eugenics based on evolution (FEBE) theory is used in genetic algorithm (GA) to carry out optimization calculation. Compared with convenient...
This paper develops optimal daily operation mode of pumped-storage power plants under electricity market environment. Assuming electricity prices can be estimated and taking the risk into considerations, an algorithm to maximize the profit of a pumped-storage power plant considering reserve bids is developed. Chance-constrained programming (CCP), Monte Carlo simulation and GA are used to solve the...
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