Grid Impact Study North Luzon

Transcript

1. GRID IMPACT STUDY NORTH LUZON PREPARED BY: SHANELLE RECHETA
2. NORTH LUZON GRID MODEL (SINGLE LINE DIAGRAM)
3. Loadflow solutions Newton-Raphson and Gauss-Seidel ▪Flat start ▪Reached tolerance in both NR and GS ▪ Largest mismatch: 9.78 MVA (GS) ▪Using Full Newton-Raphson, system reached tolerance in 5 iterations with 0.00 MVA total absolute mismatch
4. 1 2017 Condition of the Luzon Grid Thermal limits and Voltage Profile
5. The North Luzon grid was modeled as a 50-bus system with 98 branches and 15 generators. The following slide shows the voltages during N-0 conditions
6. Bus Name Code Voltage (pu) Angle (deg) SN MNL EHV 1 1.0155 -1.09 SAN JOSE EHV 1 1.0071 -2.35 TAYABAS EHV 1 1.0122 -2.51 KADAMPAT EHV 1 1.0129 -0.1 TUGUEGARAO 1 0.9871 -6.79 GAMU 1 0.9917 -6.13 SANTIAGO 2 0.9992 -4.76 MAGAT 2 1 -4.57 BAYOMBONG 1 0.9985 -3.6 BINGA 2 1 -1.53 AMBUKLAO 1 0.9999 -1.9 SAN JOSE 230 1 0.9958 -2.61 CASECNAN 2 1 2.19 PANTABANGA N 1 0.9831 -4.69 CABANATUAN 1 0.962 -7.01 CRUZDAAN 1 0.9877 -2.9 MEXICO 2 0.993 -3.39 DUHAT 1 0.9762 -2.66 HERMOSA 2 0.9949 -2.21 BATAAN 1 0.9997 -0.7 BCCPP 2 1 -0.7 SAN ESTEBAN 1 1.0004 0.57 BAKUN 2 1 0.33 BACNOTAN 1 1.0004 -0.93 KADAMPAT 230 1 1.0082 0.38 Bus Name Code Voltage (pu) Angle (deg) SUAL 3 1 0 MASINLOC 2 1 9.6 CONCEPCIO N 2 0.9945 -3.57 LA TRINIDAD 1 0.998 -1.69 BAUANG 1 1.0006 -1.18 SUBIC ENRON 1 0.993 -2.52 NEW SN MNL 1 1.0044 -1.82 SN MNL 230 1 1.0037 -1.81 MALOLOS 1 0.9884 -3.33 OLONGAPO 1 0.9932 -2.55 LABRADOR 1 1.0072 0.22 BOTOLAN 1 0.999 -2.1 MARIVELES 3 1 0 CAWAGO 1 0.9912 -2.79 BPPC 1 1.0021 -1.06 LAOAG 2 1 0.82 BANTAY 1 0.9999 0.48 SAN JOSE 115 1 0.9971 -2.68 T_ASIA 1 0.9973 -2.81 ANGAT 2 1 -2.5 BLNTWAK 3 1 0 DOLORES 1 0.9392 -8.99 ARANETA 1 0.9288 -3.94 PACO 1 0.857 -9.17 SUCAT 1 0.7873 -17.4 Voltage Profile ▪During N-0 conditions, there are 4 buses that are outside the limits of 0.95 pu and 1.05 pu of the nominal value: Dolores, Paco, Araneta and Sucat (Alert State, GO 6.2.2.2.c). Only Paco and Sucat s/s (< 0.90 pu) remain outside the limits of 0.90 pu and 1.10 pu of the nominal value (Emergency State, GO 6.2.2.3.b)
7. PERCENT LOADING Is exceeded in this region during N-0 conditions