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KHÓA ĐÀO TẠO TÍNH TOÁN ỔN ĐỊNH VÀ HƯỚNG DẪN SỬ DỤNG PHẦN MỀM PSSE CHO KỸ SƯ HỆ THỐNG ĐIỆN (Mô phỏng các sự kiện ổn định trên Phần mềm PSSE): • Scenario 1• Scenario 2• Scenario 3• Scenario 4 • Scenario 4• Scenario 5• Scenario 6• Scenario 7
TRANSMISSION & DISTRIBUTION A Division of Global Power POWER SYSTEM STABILITY CALCULATION TRAINING D10 12 Si l ti f D i E t D ays 10 - 12 - Si mu l a ti on o f D ynam i c E ven t s December 2, 2013Prepared by: Mohamed El Chehaly eBook for You OUTLINE 2 OUTLINE • Scenario 1 • Scenario 2 • Scenario 3 • Scenario 4 • Scenario 4 • Scenario 5 • Scenario 6 • Scenario 7 eBook for You 3 SCENARIO 1: FAULTS AT DI - SCENARIO 1: FAULTS AT DI - LINH & TAN DINH eBook for You Slider Diagram 4 SCENARIO 1 Slider Diagram eBook for You Load Flow 5 SCENARIO 1 Load Flow N-0: Line DI LINH TAN DINH (4020 4100) Line DI LINH – TAN DINH (4020 – 4100) 878 MVA (53.1%) Low voltages at TAN DINH but above limits Low voltages at TAN DINH but above limits N - 1: N - 1: System collapse One of the most severe contin g encies g Special protection scheme is employed eBook for You Special Protection Scheme 6 SCENARIO 1 Special Protection Scheme If the voltage at PHU LAM 500 (4400) is less than 400 kV (0 8 pu ) for 0 5 seconds less than 400 kV (0 . 8 pu ) for 0 . 5 seconds PLAM_T5 (bus 43678, load 43 MW) PLAM T6 (bus 43688 load 42 MW) PLAM _ T6 (bus 43688 , load 42 MW) Trip 2 auto-transformers at LONG AN 2 If t h e v o l tage at PH U LAM 500 ( 44 00) i s t e o tage at U 500 ( 00) s less than 430 kV (0.86 pu) for 5 seconds PLAM_T5 (bus 43678, load 43 MW) PLAM_T6 (bus 43688, load 42 MW) Trip 2 auto-transformers at LONG AN 2 eBook for You Faults 7 SCENARIO 1 Faults DI LINH (4020) Three phase fault following by a trip of line DI Three - phase fault following by a trip of line DI LINH – TAN DINH (4020 – 4100) after 100 ms Sin g le-Line-to-Ground fault followin g b y a tri p of g gy p line DI LINH – TAN DINH (4020 – 4100) after 100 ms (with and without auto-reclose) TAN DINH (4100) TAN DINH (4100) Three-phase fault following by a trip of line DI LINH – TAN DINH (4020 – 4100) after 100 ms LINH TAN DINH (4020 4100) after 100 ms Single-Line-to-Ground fault following by a trip of line DI LINH – TAN DINH (4020 – 4100) after 100 ms (with and without auto-reclose) eBook for You 8 SCENARIO 2: FAULTS AT SCENARIO 2: FAULTS AT PLEIKU & DI-LINH eBook for You Slider Diagram 9 SCENARIO 2 Slider Diagram eBook for You Load Flow 10 SCENARIO 2 Load Flow N-0: Line PLEIKU DI LINH (3300 4020) Line PLEIKU – DI LINH (3300 – 4020) 835 MVA (46.8%) N-1: System collapse System collapse One of the most severe contingencies S p ecial p rotection scheme is em p lo y ed pp py eBook for You [...]... for You PMY_1_S4 (52040) SCENARIO 6: FAULTS AT NONH TRACH 220 KV eBook for You 26 27 SCENARIO 6 eBook for You Slider Diagram 28 SCENARIO 6 Load Flow Trip line NMDHTRHC21 – NMDHTRHC22 (50902 – 50912) Line NMDHTRHC21– MYTHO 2 C22 (50902 – ( 59052) 331 MVA (96.2%) Low voltages at MYTHO C22 but above limits N-1: Voltages at MYTHO C22 below 0.90 pu C ti Contingency th t can lead t l d t i... (91612 – ( 55 422) 331 MVA (54.2%) N-1: Second circuit of DAKNONG2 – BINH LONG 2 (91612 – 55 422) is overloaded by 112% (2% more than permissible) eBook for You N-0: 33 SCENARIO 6 Faults Three phase fault following by a trip of line Three-phase DAKNONG2 – BINH LONG 2 (91612 – 55 422) after 100 ms Single-Line-to-Ground fault following by a trip of line DAKNONG2 – BINH LONG 2 (91612 – 55 422) after... Three phase fault following by a trip of line Three-phase NMDHTRHC21– MYTHO 2 C22 (50902 – 59052) after 100 ms Single-Line-to-Ground fault following by a trip of line NMDHTRHC21– MYTHO 2 C22 (50902 – 59052) after 100 ms (successful and unsuccessful auto-reclose) eBook for You NMDHTRHC21(50902) SCENARIO 7: FAULTS DAK NONG 2 220 KV eBook for You 30 31 SCENARIO 7 eBook for You Slider Diagram 32 SCENARIO... following by a trip of line O MON – NHABE (4750 – 4450) after 100 ms (successful and unsuccessful auto-reclose) eBook for You O MON (4750) SCENARIO 5: TRIPPING OF LARGEST GENERATOR IN SOUTH eBook for You 22 23 SCENARIO 5 Slider Diagram eBook for You PHU MY 1 S4 24 SCENARIO 5 Load Flow PMY 1 S4 (bus 52040 ID 1) PMY_1_S4 52040, Swing bus for the reduced system PGEN = 360 MW (86% of MBASE) 3.2% of . trip of line DI Three - phase fault following by a trip of line DI LINH – TAN DINH (4020 – 4100) after 100 ms Sin g le-Line-to-Ground fault followin g b y a tri p of g gy. a trip of line Three - phase fault following by a trip of line PLEIKU – DI LINH (3300 – 4020) after 100 ms Sin g le-Line-to-Ground fault followin g b y a tri p of g gy. trip of line PHU Three - phase fault following by a trip of line PHU LAM – DAK NONG (4400 – 3500) after 100 ms Sin g le-Line-to-Ground fault followin g b y a tri p of g gy