Transient stability analysis of stressed power systems using the energy function method

Abstract

This paper outlines the nature and characteristics of the transient response of a large stressed power network. Transient stability analysis of such a system by the transient energy function (TEF) method requires overcoming a number of analytical and numerical problems.These issues are identified and solutions to them are proposed.The procedure developed is tested on two realistic power networks derived from a large power flow base case of the Ontario Hydro system.Results of the tests compare well with time simulation and accurately predict the complex dynamic behavior.

Adaptive algorithm for rapidly optimising the generator‐tripping control

“…Through exhaustive method [19], the ‘exhaustive combination’ of the candidate generators in CC, i.e. their combination taken one‐by‐one, two‐by‐two etc., is considered.…”

Tangled Separatrices on Two Degrees of Freedom Swing Equation System

“…The system consists of some generators, loads and transmission lines connecting them. For the background, readers can refer to, for example [Athay et al, 1979;Bergen & Hill, 1981;Chiang et al, 1987;Fouad & Stanton, 1981a, 1981bKimbark, 1948;Michel et al, 1983;Narasimhamurthi & Musabi, 1984;Pai, 1989;Vittal et al, 1988]. The differential equation system derived from the dynamics of the power system has the periodical property on its potential, and there is one stable equilibrium point per period.…”

Incorporation of nonlinear load models and identification of the inter-area mode phenomenon in the transient energy function method

“…It should be noted that the exact UEP for this case and the time domain simulation pick up the 28 machines: #1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 ,12, 13, 14, 15, 16, 17, 19, 20, 21, 22, 23, 24, 25, 26, 27, 34, and 35. as advanced and most of these machines are being picked up by this test. In an earlier research work [41], the thinking was that in the stressed case the 2-machine mode shifts to the 28-machine mode, but the results of this research work seem to indicate that there is no mode which picks all these machines, instead several modes interact with each other and result in the inter-area mode phenomenon.…”