Abstract
In electrical distribution networks, unbalanced loads are often encountered and are occasionally unavoidable. Unbalanced current flow can result in unbalanced voltage at the point-of-common-coupling. Dynamic compensation methods used have involved thyristor-controlled admittance networks. In this paper, a superconducting magnetic energy storage (SMES) device is proposed as an alternative unbalanced load compensator. Using pulse width modulation (PWM) switching strategy, the SMES device has the advantages of controlled generation of low order harmonics and fast dynamic response. It also has the ability to supply short-term energy. Unbalanced load compensation is achieved by supplying the load negative sequence current. The paper also describes the development of the SMES device and experimental results of unbalanced load compensation. Further development of this study and potential application of a SMES device in the electric supply industry is also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 157-162 |
| Number of pages | 6 |
| Journal | National Conference Publication - Institution of Engineers, Australia |
| Volume | 1 |
| Issue number | 94 /11 |
| Publication status | Published - 1994 |
| Externally published | Yes |
| Event | Proceedings of the Electrical Engineering Congress 1994. Part 2 (of 2) - Sydney, Aust Duration: 24 Nov 1994 → 30 Nov 1994 |