Title :
Hybrid Control Model of Under Load Tap Changers
Author :
Milano, Federico
Author_Institution :
Dept. of Electr. Eng., Univ. of Castilla-La Mancha, Madrid, Spain
Abstract :
This paper proposes a hybrid control model of under load tap changer transformers. The proposed model is based on the well-known discrete and continuous control models of such device, and is designed so that it preserves the discrete behavior of the tap ratio while allowing solving small-signal stability and eigenvalue analysis. The proposed model is tested through the IEEE 14-bus test system and a real-world 1488-bus model of a sub-transmission and distribution system.
Keywords :
eigenvalues and eigenfunctions; on load tap changers; power distribution control; power system stability; power transmission control; IEEE 14-bus test system; continuous control; discrete control; distribution system; eigenvalue analysis; hybrid control; real-world 1488-bus model; small-signal stability; sub-transmission system; under load tap changer transformers; Analytical models; Delay effects; Load flow analysis; Stability analysis; Time domain analysis; Voltage control; Dead band; power flow analysis; small signal stability; time delay; time domain simulation; under load tap changer (ULTC);
Journal_Title :
Power Delivery, IEEE Transactions on
DOI :
10.1109/TPWRD.2011.2167521
