Hopf bifurcation study of Vietnamese power system | |
| Author | Duong Hoai Nam |
| Call Number | AIT Thesis no.ET-04-06 |
| Subject(s) | Electric power systems--Vietnam Bifurcation theory |
| 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 |
| Series Statement | Thesis ; no. ET-04-06 |
| Abstract | Power systems are dynamic systems, which include several kinds of non-linear elements. They are generally modeled by means of highly nonlinear dynamical systems of equations and a variety of control and independent parameters. The dynamic properties and their control, in critical circumstances, may cause instable phenomena, which can be studied by using the bifurcation approach. Typically, oscillatory phenomena are related to the presence of a Hopf Bifurcation. They occur on very stressed, i.e. heavy loaded systems operating close the tip of P-V curve, where the region of attraction of the operating point becomes very small. Hence the systems are not able to withstand perturbations and may be led to unstable. Hopf Bifurcation theory describes the onset of an oscillatory behavior in any non-linear dynamical system. It can be used to analyze the problem. It is also can conveniently be used to predict or detect an oscillatory problem in power systems. This thesis has focused on Hopf Bifurcations problem for Vietnamese power system. The different models of the dynamic components as well as the devices used to deal with the problem are described. Hopf bifurcation problem has been studied for different operating conditions and configurations of the existing and future network. Method to deal the problem, e.g. to improve system stability, is also presented in the report. In this study, a new method for ranking contingency in terms of Hopf bifurcation problem has been proposed and applied for Vietnamese network. |
| Year | 2004 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ET-04-06 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Energy Technology (ET) |
| Chairperson(s) | Mithulananthan, Nadarajah |
| Examination Committee(s) | Surapong Chirarattananon; Weerakom Ongsakul |
| Scholarship Donor(s) | Electricity of Vietnam |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2004 |