Electricity: motive power systems – Positional servo systems – 'reset' systems
Reexamination Certificate
2005-05-31
2005-05-31
Ip, Paul (Department: 2837)
Electricity: motive power systems
Positional servo systems
'reset' systems
C318S610000, C318S611000, C318S612000, C318S618000, C701S041000
Reexamination Certificate
active
06900609
ABSTRACT:
According to the invention, the controller cascades are suitably divided up and the oscillation damped only in the load rotational-speed controller. Here, a motor rotational-speed setpoint value (z) of a quickly regulated motor rotational-speed controller (9) and not the motor torque, is selected as the connection point for a load acceleration (i). In order to achieve a shorter transient response time, according the invention the difference between a setpoint rotational speed (x) and load rotational speed (y) is connected to the motor rotational-speed setpoint value (z). The solution in principle according to the invention which is presented has, in contrast to other known methods, the advantage that the actuation of the corresponding controllers is comparatively simple with very good control results.
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Baker & Botts L.L.P.
Siemens Aktiengesellschaft
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