On the basis of the first jig separation stage, the relational mathematical model related to ash content and the coutent of coal gangue with a density less than 1. 8 g/cm3 is established. With this model, the discharg...On the basis of the first jig separation stage, the relational mathematical model related to ash content and the coutent of coal gangue with a density less than 1. 8 g/cm3 is established. With this model, the discharge rate of reruse can be adjusted automatically and exactly by the conveutional PI regulator.The control stratedes for water capacity, air pressure, and feed capacity of the jig are introduced.Combined with the Expert system technology, jig expert system (JEP) is developed.展开更多
S-surface control has proven to be an effective means for motion control of underwater autonomous vehicles(AUV).However there are still problems maintaining steady precision of course due to the constant need to adjus...S-surface control has proven to be an effective means for motion control of underwater autonomous vehicles(AUV).However there are still problems maintaining steady precision of course due to the constant need to adjust parameters,especially where there are disturbing currents.Thus an intelligent integral was introduced to improve precision.An expert S-surface control was developed to tune the parameters on-line,based on the expert system,it provides S-surface control according to practical experience and control knowledge.To prevent control output over-compensation,a fuzzy neural network was included to adjust the production rules to the knowledge base.Experiments were conducted on an AUV simulation platform,and the results show that the expert S-surface controller performs better than an S-surface controller in environments with currents,producing good steady precision of course in a robust way.展开更多
A large-scale compressor set of a 2 kW helium cryoplant, as one of the subsystems of EAST （the experimental advanced superconducting tokamak）, is arranged in a two-stage seriesparallel structure. A fully automatic c...A large-scale compressor set of a 2 kW helium cryoplant, as one of the subsystems of EAST （the experimental advanced superconducting tokamak）, is arranged in a two-stage seriesparallel structure. A fully automatic control system used to handle the compressors＇ on/off/ scheduling and the pressures＇ adjustment was developed. To reduce the long time lag and the uncertainty with the energy slide valves effectively, expert rules in combination with proportional- integral-derivative （PID） algorithms were applied nisms were built up to reinforce its stability and to the EAST operations and is operated stably. system, such as the big overshoot of pressure and Safety protection and status analysis mecha- robustness. The new system has been applied The problems in the previous semi-automatic complexity of the operations, were solved.展开更多
文摘On the basis of the first jig separation stage, the relational mathematical model related to ash content and the coutent of coal gangue with a density less than 1. 8 g/cm3 is established. With this model, the discharge rate of reruse can be adjusted automatically and exactly by the conveutional PI regulator.The control stratedes for water capacity, air pressure, and feed capacity of the jig are introduced.Combined with the Expert system technology, jig expert system (JEP) is developed.
基金Supported by the National Natural Science Foundation of China under Grant No.50579007
文摘S-surface control has proven to be an effective means for motion control of underwater autonomous vehicles(AUV).However there are still problems maintaining steady precision of course due to the constant need to adjust parameters,especially where there are disturbing currents.Thus an intelligent integral was introduced to improve precision.An expert S-surface control was developed to tune the parameters on-line,based on the expert system,it provides S-surface control according to practical experience and control knowledge.To prevent control output over-compensation,a fuzzy neural network was included to adjust the production rules to the knowledge base.Experiments were conducted on an AUV simulation platform,and the results show that the expert S-surface controller performs better than an S-surface controller in environments with currents,producing good steady precision of course in a robust way.
基金supported by National Meg-science Engineering Project of the Chinese Government,[1998]1303
文摘A large-scale compressor set of a 2 kW helium cryoplant, as one of the subsystems of EAST （the experimental advanced superconducting tokamak）, is arranged in a two-stage seriesparallel structure. A fully automatic control system used to handle the compressors＇ on/off/ scheduling and the pressures＇ adjustment was developed. To reduce the long time lag and the uncertainty with the energy slide valves effectively, expert rules in combination with proportional- integral-derivative （PID） algorithms were applied nisms were built up to reinforce its stability and to the EAST operations and is operated stably. system, such as the big overshoot of pressure and Safety protection and status analysis mecha- robustness. The new system has been applied The problems in the previous semi-automatic complexity of the operations, were solved.
