Abstract In order to ensure the safety and economy of operation hydropower units under big data technology application platform automatic generation control system, tap maximum power potential units, an effective method economic evaluation combined with state diagnosis is proposed. Taking Unit 1 Longtan Hydropower Station as example, status daily operating conditions are carried out, real-time ...

Computer-Aided Design and Applications is an international journal on the applications of CAD CAM. It publishes papers in general domain plus emerging fields like bio-CAD, nano-CAD, soft-CAD, garment-CAD, PLM, PDM, data mining, internet, education, genetic algorithms engines. The aimed at all developers users technology to ptovide solutions for various stages design manufacturing. about technol...

We consider a time-optimal control problem for hybrid system of variable dimension. Continuous motion the alternates with discrete variations (switchings) at which dimension state space changes. The change states can occur if number objects changes, is typical, example, problems groups aircrafts. obtain sufficient conditions achievement all purposes by group objects. application optimality demo...