Showing papers on "Power system simulation published in 1971"
TL;DR: In this article, the authors describe techniques for keeping the solution time in networks with such elements as low as possible, by using the compensation method or network equivalents, and they describe how to simulate the effects of lightning arresters, transformer saturation, circuit breakers and other nonlinear and time-varying effects.
Abstract: Simulation programs for electromagnetic transients must provide models for lightning arresters, transformer saturation, circuit breakers and other nonlinear and time-varying effects. This paper describes techniques for keeping the solution time in networks with such elements as low as possible, by using the compensation method or network equivalents.
144 citations
TL;DR: In this article, a theoretical explanation of the supercritical boilerturbine-grid control relation is presented using the results of computer simulation studies, and the tuning flexibility of modern control systems is examined from the standpoint of the effects on the stability of grid frequency.
Abstract: A theoretical explanation of the supercritical boilerturbine-grid control relation is presented using the results of computer simulation studies. The energy storage behavior of an isolated steam-electric grid is described, and the tuning flexibility of modern control systems is examined from the standpoint of the effects on the stability of grid frequency.
14 citations
TL;DR: In this article, a field test program is described which was used to evaluate and then to adjust the 33 power system stabilizers installed on the Pacific Gas and Electric Company's system.
Abstract: A field test program is described which was used to evaluate and then to adjust the 33 power system stabilizers installed on the Pacific Gas and Electric Company's system. Also included is a comparison of the results of these tests with those of a digital computer simulation.
13 citations
TL;DR: In this paper, a generalized direct-integration method was proposed for the simulation of circuit breakers and power transformers in a three-phase transmission line system, and the results from a switching surge study on a representative threephase system were discussed in detail.
Abstract: Many models for the representation of transmission lines may be found in the present literature. The increasing use of digital techniques to solve the switching surge problem has prompted the development of models for other particular components of a power system. Specifically, the accurate representation of circuit breakers and power transformers is of vital importance in almost all switching surge studies. Presented here is a generalized direct-integration method that, while accurately reproducing the traveling-wave phenomena in transmission lines, advances a procedure for the simulation of circuit breakers (with insertion resistors) and power transformers. The results from a switching surge study on a representative three-phase system are discussed in detail.
4 citations
01 Dec 1971
TL;DR: In this article, the control of a two area interconnected power system subjected to disturbance inputs is discussed from the viewpoint of optimal stochastic control theory, and the control is shown to be optimal.
Abstract: The control of a two area interconnected power system subjected to disturbance inputs is discussed from the viewpoint of optimal stochastic control theory.
4 citations
TL;DR: In this paper, a simulation of power system disturbances and relaying performance by means of a digital computer is presented, where voltage distribution under independent or simultaneous occurrence of such faults are calculated.
Abstract: This paper describes simulation of power system disturbances and protective relaying performance by means of a digital computer. Line-to-line faults, faults involving ground and open conductors in a power system including both of single-and parallel double-circuit lines are dealt with, that is, voltage distribution under independent or simultaneous occurrence of such faults are calculated. The protective relaying can optionally be simulated by adding or modifying its own subprograms, and the following relayings are herewith detailed as examples: a) Combined phase and directional comparison carrier relaying for extra high voltage system. b) Out-of-step system-split relaying with distance relay of rectangular characteristics. c) Single-and three-phase reclosing systems.
3 citations