The speed of a pneumatic motor is controlled by regulating the flow of intake air with a proportional control valve Paul Berbakov
The speed is varied by throttling the air flow into the motor.
The flux control method is the convectional and the non-convectional method of speed control of an induction motor.
When a pneumatic cylinder chamber is filled with pressurized air and the air-chamber on the other side of the piston is metered-out by a flow control, the movement or speed of the cylinder is more consistent than to meter-in the pressurized air.
there are two methods i.e armature control method and field control method....
How many methods can be used to control the speed of Single Phase Induction Motor? 1.injecting emf method 2.by frequency control method 3.induced voltage method
True synchronous mode and self control mode
Meter in and meter out are terms commonly used in hydraulic systems to control the flow rate of fluid. In pneumatic systems, flow control valves such as needle valves or flow restrictors are used to regulate the speed of the air flow. These components are designed specifically for pneumatic applications due to the differences in fluid properties and system requirements between pneumatic and hydraulic systems.
you can control the speed of a motor by changing frequency, increase or decrease the field winding or by voltage regulation. in these method you can controle the speed of athree phese motor SANDEEP SARKAR
speed of a dc motor can be varied by mainly two methods:- 1)field control method 2)armature control method further , field control method can be divided in 3 parts:- 1)field rhestat control method---speed variation is acomplished by means of a variable resistance inserted in series with shunt field 2)reluctance control method---by changing the reluctance of magnetic circuit by choosing right material.. 3) field voltage control method-requires variable field voltage supply. and armature control method can be divided in 3 parts :- 1)armature resistance control---variable resisitance connected in series with armature 2)shunted armature control. 3)armature voltage control. ------------mrityunjay pandey (kiit university ,btech 2nd year)
speed
The flux control method offers the advantage of providing better speed regulation and improved efficiency in DC motors, as it adjusts the field current to control speed without affecting armature current. Additionally, it allows for smooth speed variations over a wide range. However, its disadvantage lies in the limited speed range it can achieve, as excessive flux weakening can lead to instability and reduced torque. In contrast, the armature control method can provide higher speeds but often results in lower efficiency and higher heat generation due to increased armature current.