| Jurnal Angkasa Tahun 2013 Oleh Sugiarto, Arif Basuki |
THE EFFECTS OF SIGNIFICANT UNBALANCED THREE PHASE LOADS OF 500 kV EHV JAMALI SYSTEM ON ITS GENERATING UNIT UNDER STEADY STATE OPERATION |
| ABSTRAK |
| A method is described for determining dynamic solutions for electrical steady-state that accompany unbalanced disturbances on synchronous generator connected to the 500 kV EHV Jamali System. The system can be modeled as a balanced synchronous generator’s model based qd reference of frame with unbalanced voltage inputs. Meanwhile, the load locations having significant effect on the test generators are obtained by using the electricity tracing method. Two unbalanced steady-state conditions of the grid are obtained by setting significant IBTs (or inter bus transformers), the Jamali’s grid loads, into load imbalance of 5% and 7%. . Finally, the feasibility of the proposed model and method are validated by numerical results. Keywords: unbalanced disturbance, 500 kV EHV Jamali System, qd reference of frame, IBT. |
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