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Dear Markvguy,
There are total 7 frame six GE Gas turbines are connected in our grid and we were done a load through off test in one GT (Load 30MW). While doing this test other GTs behavior is as shown below.
DW DVX DF SVLX SFL1 TNH_RPM
14:43:26.875 18.8 10.92 50.12 10.88 50.09 5175
14:43:26.906 19.9 10.92 50.12 10.88 50.05 5167
14:43:26.937 19.9 10.92 50.12 10.88 50.05 5167
14:43:26.968 22.0 10.92 50.04 10.88 50.04 5167
14:43:27.000 22.0 10.92 50.04 10.88 50.04 5167
14:43:27.031 23.9 10.92 50.04 10.88 49.98 5160
14:43:27.062 23.9 10.92 50.04 10.88 49.98 5160
14:43:27.093 24.8 10.91 49.97 10.88 49.97 5160
To increase load from 18.8 MW to 24.8 MW GT took 0.218 sec.
1) My question is how we can calculate loading rate of the GT while doing load through off test.
2) Can we use the following formula for calculating Droop?
Droop = FSRMAX(100%)-FSKRN1 / FSKRN2
= 100-18.3/18.266
GT set points are:
TNKR1_0 -Startup Accel Rate <9 %/min>
TNKR1_1 - Speed SetpointRaise-LowerRates<22%/min>
TNKR1_2 - Manual Loading <4 %/min>
TNKR1_3 - Manual Speed/Fast Load Rate <6 %/min>
TNKR1_4 - Auto Load Rate <0.75 %/min>
TNKR1_5 - Startup Accel Rate <8 %/min>
TNKR1_6 - Startup Accel <15 %/min>
TNKR1_7 - Startup Accel Rate <18 %/min>
TNKR1_8 - Speed Matching Rate <6 %/min>
TNKR1_9 - Speed/Load Setpoint Rate #9 <0 %/min>
TNKR1_10 - Speed/Load Setpoint Rate <0 %/min>
TNKR1_11 - Speed/Load Setpoint Rate <0 %/min>
TNKR2-- Breaker Opens Setpoint <100.3 %>
TNKR3 - Setpoint High Speed Stop <107 %>
TNKR4 -- Setpoint Low Speed Stop <95 %>
TNKR5 -- Setpoint Start/Stop Low Speed Stop <0 %>
TNKR7 -- Setpoint Startup Preset <100.2 %>
FSKRN1 -- Full Speed No Load FSR Constant 18.3 %
FSKRN2 -- FSR Droop Correction Factor 18.266 %/%
Thanks in advance,
Joy
There are total 7 frame six GE Gas turbines are connected in our grid and we were done a load through off test in one GT (Load 30MW). While doing this test other GTs behavior is as shown below.
DW DVX DF SVLX SFL1 TNH_RPM
14:43:26.875 18.8 10.92 50.12 10.88 50.09 5175
14:43:26.906 19.9 10.92 50.12 10.88 50.05 5167
14:43:26.937 19.9 10.92 50.12 10.88 50.05 5167
14:43:26.968 22.0 10.92 50.04 10.88 50.04 5167
14:43:27.000 22.0 10.92 50.04 10.88 50.04 5167
14:43:27.031 23.9 10.92 50.04 10.88 49.98 5160
14:43:27.062 23.9 10.92 50.04 10.88 49.98 5160
14:43:27.093 24.8 10.91 49.97 10.88 49.97 5160
To increase load from 18.8 MW to 24.8 MW GT took 0.218 sec.
1) My question is how we can calculate loading rate of the GT while doing load through off test.
2) Can we use the following formula for calculating Droop?
Droop = FSRMAX(100%)-FSKRN1 / FSKRN2
= 100-18.3/18.266
GT set points are:
TNKR1_0 -Startup Accel Rate <9 %/min>
TNKR1_1 - Speed SetpointRaise-LowerRates<22%/min>
TNKR1_2 - Manual Loading <4 %/min>
TNKR1_3 - Manual Speed/Fast Load Rate <6 %/min>
TNKR1_4 - Auto Load Rate <0.75 %/min>
TNKR1_5 - Startup Accel Rate <8 %/min>
TNKR1_6 - Startup Accel <15 %/min>
TNKR1_7 - Startup Accel Rate <18 %/min>
TNKR1_8 - Speed Matching Rate <6 %/min>
TNKR1_9 - Speed/Load Setpoint Rate #9 <0 %/min>
TNKR1_10 - Speed/Load Setpoint Rate <0 %/min>
TNKR1_11 - Speed/Load Setpoint Rate <0 %/min>
TNKR2-- Breaker Opens Setpoint <100.3 %>
TNKR3 - Setpoint High Speed Stop <107 %>
TNKR4 -- Setpoint Low Speed Stop <95 %>
TNKR5 -- Setpoint Start/Stop Low Speed Stop <0 %>
TNKR7 -- Setpoint Startup Preset <100.2 %>
FSKRN1 -- Full Speed No Load FSR Constant 18.3 %
FSKRN2 -- FSR Droop Correction Factor 18.266 %/%
Thanks in advance,
Joy