A simplified transformer thermal model based on thermal-electric analogy

Autor:	W.H. Tang, Z.J. Richardson, Qinghua Wu
Rok vydání:	2004
Předmět:	Engineering business.industry Differential equation Transformer oil Energy Engineering and Power Technology Mechanics law.invention Thermal conductivity law Thermal Heat transfer Electronic engineering Electrical and Electronic Engineering Thermal analysis business Transformer Electronic circuit
Zdroj:	IEEE Transactions on Power Delivery. 19:1112-1119
ISSN:	1937-4208 0885-8977
DOI:	10.1109/tpwrd.2003.822968
Popis:	This paper presents a further simplified thermal-electric analogous thermal model of an oil-immersed power transformer. The method is rooted on the principles of heat exchange and electric circuit laws. A set of differential equations is derived to calculate both the transient-state temperatures and the stationary-state equilibria in the main parts of a transformer. For the problem of thermal parameters identification, a genetic algorithm is employed to search global solutions for thermal parameters with onsite measurements. The validation of the simplified model and calculations of hot-spot temperatures are discussed in detail.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::134f8de80d19f485511920dc6da6d1cb https://doi.org/10.1109/tpwrd.2003.822968 Zobrazit plný text záznamu