State estimation for integrated multi-terminal DC/AC systems

Journal Article · Sun Sep 01 04:00:00 EDT 1985 · IEEE Trans. Power Appar. Syst.; (United States)

DOI:https://doi.org/10.1109/TPAS.1985.318957· OSTI ID:6497204

Letie da Silva, A M; Falcao, D M; Perrotta, G; Prada, R B

In the past few years, many papers have been published on state estimation applied to electric power systems. Different types of algorithms - static, tracking and dynamic-have been proposed aside with a variety of applications: detection and identification of bad data, network configurator, etc. Most of such studies have been carried out for AC systems, although there are some power systems around the world with DC links in operation. Moreover, engineers are now considering DC multiterminal networks as a feasible option. Therefore the state estimation techniques have to be extended to deal with such mixed AC/DC systems. So far, few papers have been published on this matter. This paper describes a new, simple and efficient method for the static state estimation of integrated HVDC/AC systems. Basically, the estimation process is carried out independently for the AC and DC networks, and then for the AC/DC interconnection system. Owing to the characteristics of the proposed method, it can be coupled to any existing AC state estimation algorithm. The proposed algorithm is applied to an integrated multiterminal DC/AC test system and the results are discussed.

• Research Organization: Department of Electrical Engineering, Catholic University of Rio de Janeiro
• OSTI ID: 6497204
• Journal Information: IEEE Trans. Power Appar. Syst.; (United States), Journal Name: IEEE Trans. Power Appar. Syst.; (United States) Vol. PAS-104:9; ISSN IEPSA
• Country of Publication: United States
• Language: English

Related Subjects

200301* -- Power Transmission & Distribution-- AC Systems
EHV & UHV-- (-1989)
200302 -- Power Transmission & Distribution-- DC Systems-- (1989-)
24 POWER TRANSMISSION AND DISTRIBUTION
29 ENERGY PLANNING, POLICY, AND ECONOMY
296000 -- Energy Planning & Policy-- Electric Power
AC SYSTEMS
ALGORITHMS
COMPUTERIZED SIMULATION
DC SYSTEMS
ENERGY SYSTEMS
HVAC SYSTEMS
HVDC SYSTEMS
INTERCONNECTED POWER SYSTEMS
LOAD ANALYSIS
MATHEMATICAL LOGIC
POWER SYSTEMS
PROBABILISTIC ESTIMATION
SIMULATION
STEADY-STATE CONDITIONS