| Author | Dang Hoang An |
| Call Number | AIT Thesis no.ET-97-33 |
| Subject(s) | Electric power systems--Vietnam--Control
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of
Master of Engineering |
| Publisher | Asian Institute of Technology |
| Abstract | Voltage control problem in power systems is one of the most important aspects of modern
power system operation and planning. Voltage is one of the basic parameters indicating the quality
of supplied energy. Optimization of voltage and reactive power, together with economic load
dispatch, ensures not only minimum cost but also reliable and secure operation of the system.
The aim of the present study is to critically assess the voltage situation in Vietnam power
system network and to find measures to solve its inherent voltage problem. Analysis of present
voltage/reactive power controlling practices is carried with the help of load flow studies for
different operating scenarios. Optimal Power Flow (OPF) has been utilized to exploit the available
reactive power resources to overcome voltage problem. Problem of reactive power planning has
been studied for situations before and after the application of Optimal Power Flow.
Optimal Power Flow is used popularly by electric utilities around the world to ensure the
optimal combination of existing voltage/reactive power controlling devices before considering the
installation of new devices. This allows utilities to avoid considerable investment.
It has been found that Optimal Power Flow can be utilized to decide the optimal settings of
generators and transformer tappings in the daily operation of Vietnam power system. Although
OPF could not solve the voltage problem in the network completely, it helps in reducing the
transmission loss. Further measures, such as installation of new capacitors have been suggested to
mitigate the voltage problem. |
| Year | 1997 |
| 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) | Srivastava, Suresh Chandra; |
| Examination Committee(s) | Surapong Chirarattananon ;Malik, Arif Saeed; |
| Scholarship Donor(s) | Swedish International Development Authority (SIDA); |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1997 |