The system's overshoot significantly reduces the number of oscillations
The proportional correction link is introduced into the forward path of the control system. By adjusting the proportional gain, we can observe its impact on the overall performance of the system. The transfer function of the system is modified accordingly. Since the system inherently has a high gain, reducing the proportional coefficient leads to an increase in both the phase and gain margins, as seen from the corresponding Bode plots. This indicates that the system's stability improves with a lower proportional gain.
As the proportional gain decreases, the system's rise time increases, and the overshoot becomes significantly smaller. Additionally, the number of oscillations reduces. When the proportional gain is lowered sufficiently, the system no longer exhibits oscillations and instead responds in a monotonic manner. This step response illustrates that the hydraulic spring in the variable mechanism behaves like a dynamic spring. When the system operates slowly, the effect of the hydraulic spring is diminished due to fluid leakage. At this point, the hydraulic spring provides little to no damping or influence on the system's behavior.
Reducing the open-loop gain of the system enhances its stability and reduces overshoot, but it also slows down the system's response. To maintain or improve the system's speed, a PD (Proportional-Derivative) controller can be implemented. Through trial-and-error adjustments, the time constant of the derivative component is fine-tuned until an optimal step response is achieved. This approach allows for better control over both stability and responsiveness, making the system more robust and efficient under varying conditions.
Butterfly valves are commonly used in piping systems to control and regulate flow and speed.
The use of butterfly valve is also relatively simple, easy to operate. And butterfly valve is widely used in all walks of life, is an important control fluid system equipment.
, for air conditioning system: A butterfly valve can control the flow of air conditioning pump and piping system to adjust the temperature of the air conditioning system, so that the air conditioning system can work more efficiently.
2, for water treatment: butterfly valve can be used for water treatment process, can effectively control and adjust the flow of water pipe, carefully adjust the appropriate quality of water.
3, used for power system: butterfly valve can also be used for power system, can effectively control and adjust the flow of water and pressure in the power system, to ensure the normal operation of the power system.
4, used for heating system: butterfly valve can also be used for heating system, can control the flow of hot water piping system and adjust the temperature of the heating system, in order to meet the temperature requirements of the house.
In general, the use of butterfly valves is very wide, from air conditioning systems to water treatment, from power systems to heating systems, a variety of industries can benefit from the use of butterfly valves. Moreover, butterfly valve structure is simple, easy to maintain, for enterprises is also an affordable choice.
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