Speed governor

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Speed governor Shown are two speed governor algorithms. The upper being only a comparison of a speed reference with actual speed and the output is CV demand. The gain of the comparison would be the regulation (or droop). With a 5% regulation, the table shows various responses. %Spd ref %Act spd %CV dmd 95 90 100 95 95 0 100 95 100 100 100 0 101 100 20 104 100 80 105 100 100 105 101 80 105 104 20 105 105 0 The Second example includes the addition of a load reference signal. The output of the comparison of speed is referred to as speed error and is summed with load reference to output CV demand. The table shows various responses. %Spd ref %Act spd %Spd Err %Ld Ref %CV dmd 95 90 100 0 100 95 95 0 0 0 100 95 100 0 100 100 100 0 0 0 100 100 0 20 20 100 100 0 80 80 100 100 0 100 100 100 101 -20 100 80 100 104 -80 100 20 100 105 -100 100 0 101 100 20 0 20 105 100 100 0 100 99 100 -20 100 80 95 100 -100 100 0

Transcript of Speed governor

Page 1: Speed governor

Speed governor

Shown are two speed governor algorithms. The upper being only a comparison of a speed reference with actual speed and the output is CV demand. The gain of the comparison would be the regulation (or droop). With a 5% regulation, the table shows various responses.

%Spd ref %Act spd %CV dmd 95 90 100 95 95 0

100 95 100 100 100 0 101 100 20 104 100 80 105 100 100 105 101 80 105 104 20 105 105 0

The Second example includes the addition of a load reference signal. The output of the comparison of speed is referred to as speed error and is summed with load reference to output CV demand. The table shows various responses.

%Spd ref %Act spd %Spd Err %Ld Ref %CV dmd 95 90 100 0 100 95 95 0 0 0

100 95 100 0 100 100 100 0 0 0 100 100 0 20 20 100 100 0 80 80 100 100 0 100 100 100 101 -20 100 80 100 104 -80 100 20 100 105 -100 100 0 101 100 20 0 20 105 100 100 0 100 99 100 -20 100 80 95 100 -100 100 0