Optimal placement of distributed generation in a distribution system | |
| Author | Mahat, Pukar |
| Call Number | AIT Thesis no.ET-05-21 |
| Subject(s) | Distributed generation of electric power Electric power distribution |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | There is a renewed interest in distributed generation (DG) among the utilities around the world. This is basically due to combination of factors like environmental concern, electricity liberalization and etc. DGs are predicted to be a major component of future power system with all those benefits that come with them. Furthermore, penetration of DGs in the power sector of many countries is already on the rise. If placed properly, they will improve the system in various ways. On the other hand, inappropriate placement may lead in the deterioration of system operation. So, it becomes essential to place them in such a way that all parties associated with them will be benefited. Today's power systems need tools to place DGs optimally to satisfy their need. In the present work, two methodologies to optimally place a DG, in a distribution system, are presented. The first one finds the optimal DG size and the location to minimize real power loss in the system. Different DG types, namely DG supplying real or reactive power only, DG supplying real power but consuming proportionate reactive power, and DG capable of regulating the voltage of the bus to which it is connected, are considered to solve the optimal DG placement problem. In the second methodology, DG is optimally placed so as to reduce the over all cost of the system. Both the utilities in the vertically integrated environment or the distribution companies (DISCOs) in deregulated markets can use this method to find the optimal DG size and the location for installing new small generations in their distribution system. Benefit of DG other than loss reduction hasn't been considered while solving the DG placement problem. This method is illustrated by considering that the DG will supply real power only. In addition, both the methodologies have been tested in a 33 bus radial system and a 69 bus radial system. Results show that DGs can reduce real power loss in the system as well as the total cost of the system provided that their size and location are appropriate. Loss reduction of more than 85% can be achieved by optimally placing the DGs. So, overall result shows that DGs are technically and economically beneficial for the power system |
| Year | 2005 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Department of Energy and Climate Change (Former title: Department of Energy, Environment, and Climate Change (DEECC)) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Weerakom Ongsakul |
| Examination Committee(s) | Nadarajah, Mithulananthan;Surapong Chirarattananon |
| Scholarship Donor(s) | AIT Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2005 |