Sinee EM303A-011G/015P-3CB, Руководство пользователя

Страница: 112 / 139

User Manual
EM303A General Purpose Inverter
112
7.6 Group F5: General Parameters of Vector Control
No. Function Range Unit Default Type
F5-00 Speed Proportion Gain ASR_P1 0.00~100.00 15.00 ●
F5-01 Speed Integration Time ASR_Ti1
0.000~30.000
0.000: No Integration
S 0.200 ●
F5-02
Speed Differentiation Time
ASR_Td1
0.000~10.000 S 0.000 ●
F5-03 Speed Proportion Gain ASR_P2 0.00~100.00 15.00 ●
F5-04 Speed Integration Time ASR_Ti2
0.000~30.000
0.000: No Integration
S 0.200 ●
F5-05 Switching Frequency 0
0.00~Switching
Frequency 1
Hz 5.00 ●
F5-06 Switching Frequency 1
Switching Frequency
0~Fmax
Hz 5.00 ●
In SVC1, inverter adjusts the speed dynamic
response of vector control through regulating
speed proportional gain, speed integration time
and speed differentiation time of PID regulator.
The dynamic response of speed loop can be
accelerated by increasing speed proportion gain,
reducing speed integration time or increasing
speed differentiation time. However, if speed
proportional gain is too big, speed integration
time is too little, or speed differentiation time is
too much, all of which will result in big
system overshoot so that oscillation occurs.
User should regulate above speed PID
parameters according to real load features. Usually, on the premise of no system
oscillation, proportion gain can be increased as much as possible, and then adjust
integration time and differentiation time to enable the system to have quick response
with small overshoot.
To ensure quick response of system at both low speed and high speed, PID regulation
needs to be conducted at low speed and high speed respectively. Below switching
frequency 0, the parameters of speed PID: P1, Ti1 and Td1, and above switching
frequency 1, the parameters of speed PID: P2, Ti2 and Td1. If switching frequency
1( F5-06)
＞ switching frequency 0 (F5-05), then the process is linear transition process
from switching frequency 0 to switching frequency 1, as shown in Figure 7-17.
1. Be cautious to edit the parameters of F5-00 ～ F5-06.
2. When setting switching frequency, switching frequency 0(F5-05) ≤
switching frequency 1(F5-06).
Figure7-17
Illustration of PID parameter