公开(公告)号：US5433079A

公开(公告)日：1995-07-18

申请号：US208151

申请日：1994-03-08

申请人： Vivek V. Badami ,  Kenneth H.-C. Chiang ,  Paul K. Houpt ,  James B. Comly ,  Bernd A. K. Westphal

发明人： Vivek V. Badami ,  Kenneth H.-C. Chiang ,  Paul K. Houpt ,  James B. Comly ,  Bernd A. K. Westphal

IPC分类号： F01D19/02 ,  F01K7/16 ,  G05B13/02 ,  F01K13/02

CPC分类号： F01D19/02 ,  F01K7/165 ,  G05B13/0275

摘要： A method for automated control of a steam turbine prewarming procedure employs fuzzy logic to generate a control signal for a turbine regulatory function, such as steam supply. The method includes the steps of determining a plurality of turbine condition parameter signals; generating a plurality of regulatory control directions; generating a weighting factor to be assigned to each of said regulatory control directions by means of a fuzzy inference calculation in accordance with an operator-selected fuzzy logic profile, and applying the weighting factors to the regulatory control directions to produce the turbine regulatory function control signal. The turbine regulatory function control signal is applied to a respective function controller in the steam plant such that the selected turbine prewarming profile is implemented.

摘要翻译： 汽轮机预热程序的自动控制方法采用模糊逻辑来产生涡轮调节功能（如蒸汽供应）的控制信号。 该方法包括确定多个涡轮状况参数信号的步骤; 产生多个监管控制方向; 通过根据运算符选择的模糊逻辑曲线的模糊推理计算生成要分配给每个所述调节控制方向的加权因子，以及将加权因子应用于调节控制方向以产生涡轮调节功能控制信号 。 涡轮调节功能控制信号被施加到蒸汽设备中的相应功能控制器，使得实现所选择的涡轮机预温度轮廓。

公开(公告)号：US5534766A

公开(公告)日：1996-07-09

申请号：US221608

申请日：1994-04-01

申请人： Piero P. Bonissone ,  Michael J. Schutten ,  Kenneth H.-C. Chiang

发明人： Piero P. Bonissone ,  Michael J. Schutten ,  Kenneth H.-C. Chiang

IPC分类号： G05B13/02 ,  G05F1/10 ,  H02M3/337

CPC分类号： G05F1/10 ,  G05B13/0275 ,  H02M3/3376 ,  Y02B70/1433

摘要： The present invention discloses a method and system for controlling a power supply by delivering stable output voltage independent of load. The control system includes a sensor for sensing a state variable, a fuzzy logic controller for generating a control action, and an actuator for regulating the power supply in accordance with the control action. The fuzzy logic controller generates a fuzzy logic knowledge base using low-level fuzzy logic controllers and a mode selector in one embodiment and a fuzzy logic proportional integral controller in another embodiment. The generated fuzzy logic knowledge base is compiled in a look-up table and is used to quickly and efficiently control a power supply device such as a resonant converter.

摘要翻译： 本发明公开了一种通过输送稳定的输出电压来独立于负载来控制电源的方法和系统。 控制系统包括用于感测状态变量的传感器，用于产生控制动作的模糊逻辑控制器和用于根据控制动作来调节电源的致动器。 模糊逻辑控制器在一个实施例中使用低级模糊逻辑控制器和模式选择器以及另一实施例中的模糊逻辑比例积分控制器来生成模糊逻辑知识库。 生成的模糊逻辑知识库被编译在查找表中，用于快速有效地控制诸如谐振转换器的电源设备。