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    • 32. 发明授权
    • Improved proportional integral-derivative control apparatus
    • 改进的比例积分微分控制装置
    • US4466054A
    • 1984-08-14
    • US381445
    • 1982-05-24
    • Takashi ShigemasaYasuo Takagi
    • Takashi ShigemasaYasuo Takagi
    • G05B13/00G05B13/02G05B13/04
    • G05B13/0205G05B13/0245
    • A process control apparatus is provided which has a PID controller to which is supplied a sampled signal of a control deviation signal of a process value signal and a reference signal and which generates a PID control signal according to sampled-value PID control constants. A non-linear controller is connected in parallel with the PID controller. A sum signal of the output signals from the PID controller and the non-linear controller is supplied to a process through a holding circuit. The process control apparatus further includes a circuit for identifying the dynamic characteristic of the process according to the sum signal and the sampled signal of the process value, and a circuit for calculating a transfer function of the process in the Laplace operator domain and for determining the sampled-value PID constants of the PID controller according to the dynamic characteristic.
    • 提供了一种过程控制装置,其具有PID控制器,向PID控制器提供过程值信号和参考信号的控制偏差信号的采样信号,并根据采样值PID控制常数产生PID控制信号。 非线性控制器与PID控制器并联。 来自PID控制器和非线性控制器的输出信号的和信号通过保持电路被提供给处理。 该过程控制装置还包括用于根据和信号和过程值的采样信号识别过程的动态特性的电路,以及用于计算拉普拉斯算子域中的处理的传递函数并确定 根据动态特性,PID控制器的采样值PID常数。