Testing and Model Validation of Cumberland Power Plant
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1 Testing and Model Validation of Cumberland Power Plant Leonardo T. G. Lima, James W. Feltes and F. P. de Mello Siemens Power Transmission & Distribution, Inc.
2 Cumberland Unit 1 Original analog UNITROL static excitation system Represented by SCRX model in PSS E TVA Stability Workshop 1-2
3 TVA Stability Workshop Simulated Open Circuit Response Unit 1 SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 1: [EFD 4067 [F1HL CMB20.700] [1 ]] FILE:...\MWG runs\estr_run P_run F.out CHNL# 2: [ETRM 4067 [F1HL CMB20.700] [1 ]] FILE:...\MWG runs\estr_original ESST1A.out CHNL# 1: [EFD 4067 [F1HL CMB20.700] [1 ]] FILE:...\MWG runs\estr_original ESST1A.out CHNL# 2: [ETRM 4067 [F1HL CMB20.700] [1 ]] FILE: C:\LocalDocs\...\MWG runs\estr_original.out CHNL# 1: [EFD 4067 [F1HL CMB20.700] [1 ]] FILE: C:\LocalDocs\...\MWG runs\estr_original.out ESST1A (ABB) ORIGINAL SCRX ESST1A (PTI) TUE, APR : ESTR - UNIT 1 TIME (SECONDS) 1-3
4 Cumberland Unit 2 Original (analog) UNITROL static excitation system replaced by the digital version Represented by ESST1A model in PSS E TVA Stability Workshop 1-4
5 Cumberland Unit 2 Represented by ESST1A model in PSS E TVA Stability Workshop 1-5
6 TVA Stability Workshop Simulated Open Circuit Response Unit 2 SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 6: [ETRM 4068 [F2HL CMB20.700] [1 ]] FILE:...\MWG runs\estr_run P_run F.out CHNL# 5: [EFD 4068 [F2HL CMB20.700] [1 ]] FILE:...\MWG runs\estr_run P_run F.out CHNL# 6: [ETRM 4068 [F2HL CMB20.700] [1 ]] FILE:...\MWG runs\estr_original ESST1A.out CHNL# 5: [EFD 4068 [F2HL CMB20.700] [1 ]] FILE:...\MWG runs\estr_original ESST1A.out CHNL# 6: [ETRM 4068 [F2HL CMB20.700] [1 ]] FILE: C:\LocalDocs\...\MWG runs\estr_original.out CHNL# 5: [EFD 4068 [F2HL CMB20.700] [1 ]] FILE: C:\LocalDocs\...\MWG runs\estr_original.out ESST1A (ABB) ESST1A (PTI) TUE, APR : ESTR - UNIT 2 TIME (SECONDS) 1-6
7 Open Circuit Frequency Response of Excitation System 10 4 Original Settings 10 3 Magnitude Phase (degrees) Frequency (Hz) TVA Stability Workshop
8 Test Procedure Focus on excitation system model Need to test with the units online Test procedure based on step changes in excitation system voltage reference TVA agreed to conduct the staged switching of a nearby 500 kv transmission line (Johnsonville Gleason 500 kv) TVA Stability Workshop 1-8
9 TVA Stability Workshop Switching Off of Johnsonville-Gleason 500 kv SIEMENS POWER TECHNOLOGIES INTERNATIONAL R OCT :30: FILE: C:\LocalDocs\...\TVA\Cumberland Tests\Event Files\ out CHNL# S 61,62,63: ([U2_VAB]+[U2_VBC]+[U2_VCA])/3/ CHNL# S 52,53,54: ([U1_VAB]+[U1_VBC]+[U1_VCA])/3/ CHNL# 76: [U2B_P] CHNL# 74: [U2A_P] CHNL# 72: [U1B_P] CHNL# 70: [U1A_P] V (UNIT 1) V (UNIT 2) U2A U2B U1A U1B WED, MAR : TIME (SECONDS) 1-9
10 TVA Stability Workshop Switching Off of Johnsonville-Gleason 500 kv SIEMENS POWER TECHNOLOGIES INTERNATIONAL R OCT :30: FILE: C:\LocalDocs\...\TVA\Cumberland Tests\Event Files\ out CHNL# 77: [U2B_Q] CHNL# 75: [U2A_Q] CHNL# 73: [U1B_Q] CHNL# 71: [U1A_Q] U1B U1A U2A U2B WED, MAR : TIME (SECONDS) 1-10
11 TVA Stability Workshop SIEMENS POWER TECHNOLOGIES INTERNATIONAL R OCT :56:200 FILE: OUT CHNL# 72: [U1B_P] 100 CHNL# 70: [U1A_P] 100 CHNL# 73: [U1B_Q] CHNL# 71: [U1A_Q] CHNL# S 52,53,54: ([U1_VAB]+[U1_VBC]+[U1_VCA])/3/ % Step Unit 2B TIME (SECONDS) 1-11 TUE, NOV : UNIT 1
12 TVA Stability Workshop SIEMENS POWER TECHNOLOGIES INTERNATIONAL R OCT :56:200 FILE: OUT CHNL# 76: [U2B_P] 100 CHNL# 74: [U2A_P] 100 CHNL# 77: [U2B_Q] CHNL# 75: [U2A_Q] CHNL# S 61,62,63: ([U2_VAB]+[U2_VBC]+[U2_VCA])/3/ % Step Unit 2B TIME (SECONDS) 1-12 TUE, NOV : UNIT 2
13 Identification of Models Cumberland Unit 2 Siemens Power Transmission & Distribution, Inc.
14 Input Data for Optimization 6 / NEXT AVAILABLE ICON IN THE SNAPSHOT SMSL.SNP 3 / NEXT AVAILABLE VAR IN THE SNAPSHOT SMSL.SNP 86 / NEXT AVAILABLE CON IN THE SNAPSHOT SMSL.SNP 31 / NEXT AVAILABLE STATE IN THE SNAPSHOT SMSL.SNP 15 / NUMBER OF EVENTS 3 / NUMBER OF OUTPUT VARIABLES FOR LEAST SQUARE CALCULATION 168. / EXCITATION BASE VOLTAGE 01 / WEIGHT IN FITNESS CALCULATION FOR THE ERROR SQUARED OF OUTPUT #1 10 / WEIGHT IN FITNESS CALCULATION FOR THE ERROR SQUARED OF OUTPUT #2 10 / WEIGHT IN FITNESS CALCULATION FOR THE ERROR SQUARED OF OUTPUT #3 E2A E2B E3A E4A E4B E5A E5B E7A E7B E8A E8B E9A E9B E10A E10B TVA Stability Workshop 1-14
15 Performance of Optimization Process Fitness Generation average Maximum TVA Stability Workshop 1-15
16 Optimization Results (Best Run) LEAST SQUARE ERROR GEN. A FIELD VOLTAGE GEN. B FIELD VOLTAGE EVENT FITNESS TERMINAL VOLTAGE E2_up E2_dw E3_up E4_up E4_dw E5_up E5_dw E7_up E7_dw E8_up E8_dw E9_up E9_dw E10_off E10_on TOTAL TOTAL FITNESS= FOR 15_GEN 90 TVA Stability Workshop 1-16
17 Results PARAMETER ORIGINAL RUN F 1 TR VIMAX VIMIN TC/TB TB TC1/TB TB KA TA VAMAX VAMIN KC KLR ILR T'd T'q T"q Xq/Xd X'q/Xq TVA Stability Workshop 1-17
18 TVA Stability Workshop Cumberland Unit 2 Event E9up SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: ORIGINAL_E9A.OUT CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: E9A_CASE_ 15_GEN 90.OUT CHNL# 6: [OUTPUT # 1] FILE: E9A_CASE_ 15_GEN 90.OUT WED, APR : TERMINAL VOLTAGE TIME (SECONDS) 1-18
19 TVA Stability Workshop Cumberland Unit 2 Event E9up SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: ORIGINAL_E9A.OUT CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: E9A_CASE_ 15_GEN 90.OUT CHNL# 7: [OUTPUT # 2] FILE: E9A_CASE_ 15_GEN 90.OUT WED, APR : EFD GEN. 2A TIME (SECONDS) 1-19
20 TVA Stability Workshop Cumberland Unit 2 Event E9up SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 28: [EFD BUS 1 MACH 2 ] FILE: ORIGINAL_E9A.OUT CHNL# 28: [EFD BUS 1 MACH 2 ] FILE: E9A_CASE_ 15_GEN 90.OUT CHNL# 8: [OUTPUT # 3] FILE: E9A_CASE_ 15_GEN 90.OUT WED, APR : EFD GEN. 2B TIME (SECONDS) 1-20
21 TVA Stability Workshop Cumberland Unit 2 Event E10off SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: ORIGINAL_E10A.OUT CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: E10A_CASE_ 15_GEN 90.OUT CHNL# 6: [OUTPUT # 1] FILE: E10A_CASE_ 15_GEN 90.OUT WED, APR : TERMINAL VOLTAGE TIME (SECONDS) 1-21
22 TVA Stability Workshop Cumberland Unit 2 Event E10off SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: ORIGINAL_E10A.OUT CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: E10A_CASE_ 15_GEN 90.OUT CHNL# 7: [OUTPUT # 2] FILE: E10A_CASE_ 15_GEN 90.OUT WED, APR : EFD GEN. 2A TIME (SECONDS) 1-22
23 TVA Stability Workshop Cumberland Unit 2 Event E10off SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 28: [EFD BUS 1 MACH 2 ] FILE: ORIGINAL_E10A.OUT CHNL# 28: [EFD BUS 1 MACH 2 ] FILE: E10A_CASE_ 15_GEN 90.OUT CHNL# 8: [OUTPUT # 3] FILE: E10A_CASE_ 15_GEN 90.OUT WED, APR : EFD GEN. 2B TIME (SECONDS) 1-23
24 Identification of Models Cumberland Unit 1 Siemens Power Transmission & Distribution, Inc.
25 Results 1-25 EVENT ID FITNESS LEAST SQUARE ERROR GEN. A EFD ERROR VOLTAGE ERROR GEN. B EFD ERROR E2A E2B E3A E3B E4A E4B E5A E5B E6A E6B E7A E7B E8A E8B E9A E9B E10A E10B E11A E11B E12A E12B E13A E13B E14A E14B E15A E15B TOTAL TOTAL FITNESS= FOR 31_GEN 898 TVA Stability Workshop
26 Optimization Results (Best Run) PARAMETER RUN P 1 TR 01 2 VIMAX VIMIN TC/TB TB TC1/TB TB KA TA VAMAX VAMIN KC KLR ILR XCOMP T'd T'q T"q Xq/Xd X'q/Xq TVA Stability Workshop 1-26
27 TVA Stability Workshop Cumberland Unit 1 Event E15up SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: ORIGINAL_ESST1A_E15A.OUT CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: ORIGINAL_E15A.OUT CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: E15A_CASE_ 31_GEN 898.OUT CHNL# 6: [OUTPUT # 1] FILE: E15A_CASE_ 31_GEN 898.OUT WED, APR : TERMINAL VOLTAGE TIME (SECONDS) 1-27
28 TVA Stability Workshop Cumberland Unit 1 Event E15up SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: ORIGINAL_ESST1A_E15A.OUT CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: ORIGINAL_E15A.OUT CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: E15A_CASE_ 31_GEN 898.OUT CHNL# 7: [OUTPUT # 2] FILE: E15A_CASE_ 31_GEN 898.OUT WED, APR : EFD GEN. 1A TIME (SECONDS) 1-28
29 TVA Stability Workshop Cumberland Unit 1 Event E15up SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 26: [EFD BUS 1 MACH 2 ] FILE: ORIGINAL_ESST1A_E15A.OUT CHNL# 26: [EFD BUS 1 MACH 2 ] FILE: ORIGINAL_E15A.OUT CHNL# 26: [EFD BUS 1 MACH 2 ] FILE: E15A_CASE_ 31_GEN 898.OUT CHNL# 8: [OUTPUT # 3] FILE: E15A_CASE_ 31_GEN 898.OUT WED, APR : EFD GEN. 1B TIME (SECONDS) 1-29
30 TVA Stability Workshop SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: ORIGINAL_ESST1A_E6A.OUT CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: ORIGINAL_E6A.OUT CHNL# 12: [ETRM BUS 1 MACH 1 ] FILE: E6A_CASE_ 31_GEN 898.OUT CHNL# 6: [OUTPUT # 1] FILE: E6A_CASE_ 31_GEN 898.OUT Cumberland Unit 1 Event E6up WED, APR : TIME (SECONDS) TERMINAL VOLTAGE
31 TVA Stability Workshop Cumberland Unit 1 Event E6up SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: ORIGINAL_ESST1A_E6A.OUT CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: ORIGINAL_E6A.OUT CHNL# 13: [EFD BUS 1 MACH 1 ] FILE: E6A_CASE_ 31_GEN 898.OUT CHNL# 7: [OUTPUT # 2] FILE: E6A_CASE_ 31_GEN 898.OUT WED, APR : EFD GEN. 1A TIME (SECONDS) 1-31
32 TVA Stability Workshop SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 26: [EFD BUS 1 MACH 2 ] FILE: ORIGINAL_ESST1A_E6A.OUT CHNL# 26: [EFD BUS 1 MACH 2 ] FILE: ORIGINAL_E6A.OUT CHNL# 26: [EFD BUS 1 MACH 2 ] FILE: E6A_CASE_ 31_GEN 898.OUT CHNL# 8: [OUTPUT # 3] FILE: E6A_CASE_ 31_GEN 898.OUT Cumberland Unit 1 Event E6up WED, APR : TIME (SECONDS) EFD GEN. 1B
33 Conclusions and Recommendations Updated simulation models for excitation systems and generators at Cumberland Power Plant Simulation results are still showing more damping than actual event Cumberland Power Plant shows poorly damped oscillations (less than 5% damping ratio) under normal operating conditions (full power output, intact 500 kv system) Power system stabilizers (PSS) are recommended for Cumberland Power Plant TVA Stability Workshop 1-33
34 Siemens Power Transmission & Distribution, Inc.
35 Cumberland versus Infinite System TVA Stability Workshop 1-35
36 TVA Stability Workshop Cumberland versus Infinite System SIEMENS POWER TECHNOLOGIES INTERNATIONAL R CUMBERLAND OSCILLATIONS - SEPTEMBER MACHINE X INFINITE BUS - FROM STATE ESTIMATOR CHNL# 7: [POWR 4067 [F1HL CMB20.700] [1 ]] FILE:...\MWG runs\smib_run P (TB=8)_run F.out CHNL# 7: [POWR 4067 [F1HL CMB20.700] [1 ]] FILE:...\MWG runs\smib_run P(K=207)_run F.out CHNL# 7: [POWR 4067 [F1HL CMB20.700] [1 ]] FILE:...\MWG runs\smib_run P_run F.out K A = 159 p.u. T B = 11.5 s K A = 207 p.u. T B = 11.5 s K A = 159 p.u. T B = 8.0 s WED, APR : ELECTRICAL POWER - U1A TIME (SECONDS) 1-36
37 Siemens Power Transmission & Distribution, Inc.
38 Governor Response and System Droop TVA Stability Workshop 1-38
39 Frequency Response Cumberland Event\CD of Cumberland\Recorded Oscillations\Frequency plots\hopkinsville.ppt Cumberland Event\CD of Cumberland\Recorded Oscillations\Frequency plots\allunits_918.ppt Cumberland Event\CD of Cumberland\Recorded Oscillations\Frequency plots\nashville.ppt TVA Stability Workshop 1-39
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