why a resistor is added in parallel with a transistor base-emitter. e.g., a transistor is driven through a 10k at its base and between base and emitter another 10k is connected in parallel?
CJCPE:
The whole question is about why the loss (motor + inverter)is different for motoring and regen.
For the same commanded torque, why measured torque using torque transducer, not estimated, are different for motoring and regen with open loop control?
It was realized that both 30kW induction and 100kW PM motor have different power loss during motoring and regen. It seems that regen has about 10% higher loss. The measurement was carried out such that DC bus voltage and current were controlled at fixed value, for motoring the dc current is out...
The information provided is good, but the question is not
answered - how the coupled output inductors improve the
output cross regulation,,,
With separate inductors, the load of one output increases will result in the voltage increase of other output.
With coupled inductors, the voltage...
a two-transistor forward converter has two outputs -
15V and 24V. The two outputs have coupled output inductors. Please explain how the coupled output inductors improve
the output cross regulation, reference preferred.
An induction motor is controlled with vector-control
algorithm. Keeping Id constant, if the polarity of Iq
is changed from '+' to '-', the motor torque should change
from motoring to regenerating.
Theoretically, if /Iq/ is the same, the torque, /T/, should
be the same. The polarity of Iq only...