Читать книгу PID Control System Design and Automatic Tuning using MATLAB/Simulink - Liuping Wang - Страница 12
List of Symbols and Acronyms
ОглавлениеSymbols
| Closed-loop polynomial | |
| Desired closed-loop polynomial | |
| Sampling interval | |
| Laplace transform for output disturbance | |
| Laplace transform for input disturbance | |
| Laplace transform for measurement noise | |
| Transfer function model | |
| Imaginary unit, | |
| Proportional control gain | |
| , , | Scheduling parameters |
| Backward shift operator, | |
| Sensitivity function | |
| Input sensitivity function | |
| Complementary sensitivity function | |
| Desired complementary sensitivity function | |
| Derivative control gain | |
| Derivative control filter time constant | |
| Integral control time constant | |
| Closed-loop time constant | |
| Control signal | |
| Minimum and maximum limits for | |
| Steady-state value for a control signal | |
| Actual control signal () | |
| Operating condition of | |
| Bandwidth or natural frequency in PID controller design (rad/s) | |
| Operating condition of | |
| Damping coefficient in PID controller design | |
| Output signal | |
| Steady-state value of the output signal | |
| Actual output signal () |
Acronyms
| FFT | Fast Fourier transform |
| FSF | Frequency sampling filter |
| IPD | Alternative PID controller structure with proportional control and derivative control on output only |
| PID | Proportional, integral and derivative |
| PWM | Pulse Width Modulation |
