Strathprints Home | Open Access | Browse | Search | User area | Copyright | Help | Library Home | SUPrimo

Increasing wind farm capacity

Dinic, N. and Fox, B. and Flynn, D. and Xu, L. and Kennedy, A. (2006) Increasing wind farm capacity. IEE Proceedings Generation Transmission and Distribution, 153 (4). pp. 493-498. ISSN 1350-2360

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

The issue of wind farm capacity is addressed through study of a simple but generic system. Wind-farm size is defined in terms of its rating relative to system fault level at the wind-farm terminals. The voltage rise for a wind farm whose capacity is 20% of system fault rating is determined for various utility network reactance-to-resistance ratios (X/R). The focus is on a network with an X/R ratio of unity, typical of 33 kV networks in the UK. It is shown that capacitive compensation for a fixed-speed wind turbine generator can contribute to the voltage rise problem. A typical compensation scheme, with extra capacitance being switched in as active power increases, results in the maximum allowed voltage rise for a wind-farm capacity of 13% of system fault rating. A modified scheme, with capacitive compensation being reduced at greater active power outputs, enables the capacity to be increased to 20% of system fault rating. The modified scheme leads to slightly increased network losses. It has the advantage that the reduced capacitive compensation is below the level required for self excitation. An analogous study for a wind farm based on doubly-fed induction generators results in the same capacity limitation, but with slightly reduced losses.

Item type: Article
ID code: 36712
Keywords: losses, wind turbines , wind power plant, turbogenerators, power generation faults , Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 13 Jan 2012 14:35
    Last modified: 02 May 2012 16:30
    URI: http://strathprints.strath.ac.uk/id/eprint/36712

    Actions (login required)

    View Item