Modeling and placement of an electric spring in a distribution system | |
| Author | Nanda, Mrutyunjaya |
| Call Number | AIT Thesis no.ET-17-11 |
| Subject(s) | Renewable energy sources Electric power distribution |
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering in Energy |
| Publisher | Asian Institute of Technology |
| Abstract | The past decade has seen an accelerated growth in the usage of renewable energy sources for power generation. Increased penetration of these distributed sources into the existing power grid has brought new technical challenges. The intermittent nature of these sources destabilizes the grid by creating voltage fluctuations. Electric Spring is a recent novel concept to provide electric voltage support to the grid. The novelty of this study is developing a steady state power equation for the Electric Spring and incorporating these equations to optimally place the device in a distributed power system. A single phase Electric Spring is simulated in detail using MATLAB/SIMULINK environment. The results show how this device regulates the voltage despite the fluctuations introduced by the source. This model also portrays the Electric Spring as a smart load when used in conjunction with a dissipative electric load. A steady state power injection equation is developed for the Electric Spring in this study. This novel equation is independent of the bus voltages and branch currents, rather depends only on the parameters of the Electric Spring. The developed equation is successfully validated by comparing the calculated results against the simulation results. The effectiveness of this power equation is tested by using it in the process of finding the optimal location to place the Electric Spring in a distribution network. Beginning with a simple 3 bus system, the network complexity is gradually increased by considering 14 bus, 33 bus and 69 bus networks one after another for this study. In each case the node voltages, reactive and active powers injected at each bus are found out to compare the performance of the ES with a DSTATCOM. |
| Year | 2017 |
| 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) | Singh, Jai Govind |
| Examination Committee(s) | Weerakorn Ongsakul;Dhakal, Shobhakar |
| Scholarship Donor(s) | Asian Institute of Technology Fellowship |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2017 |