KHÓA ĐÀO TẠO TÍNH TOÁN ỔN ĐỊNH VÀ ỨNG DỤNG TRÊN PHẦN MỀM PSSE CHO KỸ SƯ HỆ THỐNG ĐIỆN (Kịch bản nghiên cứu theo tiêu chuẩn IEEE trên Phần mềm PSSE): • PV Analysis.• QV Analysis.• Long Term Stability.• Small Signal Stability.
TRANSMISSION & DISTRIBUTION A Division of Global Power POWER SYSTEM STABILITY CALCULATION TRAINING Day 15 - Case Study – IEEE 24 Bus Test System Day 15 - Case Study – IEEE 24 Bus Test System PART 3 July 24, 2013Prepared by: Frida Ceja-Gomez eBook for You 2 OUTLINE • PV Analysis PV Analysis • QV Analysis • Long Term Stability • Small Signal Stability • Small Signal Stability eBook for You 3 IEEE 24 – PV ANALYSIS IEEE 24 – PV ANALYSIS eBook for You 4 PV ANALYSIS PV Analysis • Remember that PV analysis is not part of the dynamic dynamic analysis, so use the non- converted saved case file • We will study the power the power transfer from Area 2 to Area 1 eBook for You PV Distribution 5 PV ANALYSIS PV Distribution Factor File Input • Use the subsystem file created for N-1 contingency contingency analysis • Prepare a monitoring file as shown here • Prepare a • Prepare a contingency file to study the loss of each one of the transformers eBook for You 6 PV ANALYSIS PV Analysis • Go the PV Analysis window and create the create the distribution factor file • Make sure to choose the right settings • Select the source and sink subsystems eBook for You 7 PV ANALYSIS PV Analysis Results • Plot the interface flow for each contingency contingency • What is the maximum power transfer from Area 2 to Area 1 for each 1 for each case? eBook for You 8 PV ANALYSIS PV Analysis Results • Now verify the voltage at bus 14 for each of the studied contingencies contingencies • What is the point of voltage collapse for each case? • Which one seems to be the worst be the worst contingency? eBook for You 9 PV ANALYSIS PV Analysis Results • Build a case with the lowest maximum transfer between the two areas using “ Implement PV transfer ” areas using Implement PV transfer • Convert the case and prepare for dynamic simulation • Monitor machine angles and bus voltages • Initialize • Run for 1 second • Apply a bus fault on one side of the selected transformer Apply a bus fault on one side of the selected transformer • Clear after 5 cycles by tripping the transformer • Run for 10 seconds eBook for You 10 IEEE 24 – QV ANALYSIS IEEE 24 – QV ANALYSIS eBook for You [...]... Signal Stability using NEVA PSS at bus 7 (more unstable) eBook for You • 35 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA PSS at bus 1, 2, 7 and 22 eBook for You • 36 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA Model Name IEEEX1 IEEEX1 IEEEX1 IEEEX1 IEEEX1 IEEEX1 IEEEX1 IEEEX1 IEEEX1 IEEEX1 Change exciter gains for buses 1, 2, 7, and 22 Model Identifier 1 [A... NEVA Right Eigenvector eBook for You • 31 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA Participation factor eBook for You • 32 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA Residues eBook for You • 33 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA eBook for You PSS at machine 7 Model IEEEST 34 IEEE 24 – SMALL SIGNAL STABILITY Small Signal... Voltage Stability IEEE 24 – SMALL SIGNAL STABILITY eBook for You 26 27 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA Mode 1 unstable eBook for You • 28 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA Mode waveforms eBook for You • 29 IEEE 24 – SMALL SIGNAL STABILITY Small Signal Stability using NEVA Maximum participated state eBook for You • 30 IEEE 24 – SMALL... • Is reactive compensation needed? eBook for You • IEEE 24 – LONG TERM STABILITY eBook for You 14 15 IEEE 24 – LONG TERM STABILITY On-load On load Tap Changer OLTC1 eBook for You M d l OLTC1 typical values Model t i l l 16 IEEE 24 – LONG TERM STABILITY Maximum Excitation Limiters MAXEX1 eBook for You M d l MAXEX1 typical values Model t i l l 17 IEEE 24 – LONG TERM STABILITY Steam Turbine and Boiler... data for TGOV5 18 IEEE 24 – LONG TERM STABILITY Underfrequency Load Shedding q y g Models (LDSH) eBook for You Typical data for LDSHAL 19 IEEE 24 – LONG TERM STABILITY Undervoltage Load Shedding Models g g (LVSH) eBook for You Typical data for LVSHAR 20 IEEE 24 – LONG TERM STABILITY Under/Over Frequency Relay Models q y y (FRQDCAT) eBook for You Typical data for FRQDCAT 21 IEEE 24 – LONG TERM... Frequency Stability 24 IEEE 24 – LONG TERM STABILITY Long-Term Long Term Voltage Stability Machine angles Bus voltage Frequency deviation Pload Initialize and run until t = 2 seconds Scale all loads by 300 MW Run until t = 200 seconds eBook for You Disable all frequency relays (loads and generators) t ) Prepare for transient simulation and choose the following channels 25 IEEE 24 – LONG TERM... data for VTGDCAT 22 IEEE 24 – LONG TERM STABILITY Long-Term Long Term Frequency Stability Machine angles Bus voltage Frequency deviation Pload Initialize and run until t = 2 seconds Trip largest generation Run until t = 20 seconds eBook for You Disable all voltage relays (loads and generators) t ) Prepare for transient simulation and choose the following channels 23 IEEE 24 – LONG TERM . STABILITY CALCULATION TRAINING Day 15 - Case Study – IEEE 24 Bus Test System Day 15 - Case Study – IEEE 24 Bus Test System PART 3 July 24, 2013Prepared by: Frida Ceja-Gomez eBook. Signal Stability eBook for You 3 IEEE 24 – PV ANALYSIS IEEE 24 – PV ANALYSIS eBook for You 4 PV ANALYSIS PV Analysis • Remember that PV analysis is not part of the dynamic dynamic analysis,. of voltage collapse for each case? • Which one seems to be the worst be the worst contingency? eBook for You 9 PV ANALYSIS PV Analysis Results • Build a case with the lowest maximum transfer