Comparison of stability service cost in power grids considering different types of WTs. Issue 7 (22nd March 2018)

• Record Type: Journal Article
• Authors: Hashemi, Yashar; Shayeghi, Hossein; Moradzadeh, Mohammad
• Is Part Of: IET renewable power generation. Volume 12:Issue 7(2018)
• Page Start: 773
• Page End: 786
• Publication Date: 2018-03-22
• Subjects: power system dynamic stability -- permanent magnet generators -- synchronous generators -- asynchronous generators -- Pareto optimisation -- search problems -- power generation economics -- wind power plants -- wind turbines -- power grids; stability service cost -- power grid -- WT -- wind turbines -- mathematical modelling -- multimachine power system -- technical–economical two‐objective optimisation problem -- damping indices -- generation cost -- multiobjective gravitational search algorithm method -- Pareto‐optimal curves -- generation costs -- doubly fed asynchronous generator -- permanent magnet synchronous generator -- dynamic condition -- system generation situation -- 16‐machine 5‐area network; Renewable energy sources -- Periodicals; 333.79405
• DOI: 10.1049/iet-rpg.2017.0351
• Languages: English
• ISSNs: 1752-1416

Abstract

Abstract : This study presents a comparative study on dynamic behaviour of two different types of wind turbines (WTs) that are widely used in power systems. Mathematical modelling of two types of WTs in the multi‐machine power system is presented, and a suitable framework for the study is provided. To compare the cost of provision of stability service by each of two different WTs, a technical–economical two‐objective optimisation problem considering damping indices and generation cost will be formulated and solved by multi‐objective gravitational search algorithm method. The presented strategy is carried out for each WT and Pareto‐optimal curves are extracted. It is shown that in a system with poor dynamic situation, expensive production units are used that this phenomenon will increase generation cost. Generation costs are analysed by considering two WTs, doubly fed asynchronous generator and permanent magnet synchronous generator and dynamic condition for each type are evaluated. Two scenarios are assumed for evaluation; the first one without retuning of stabilisers and the second one with stabilisers retuned due to system generation situation. The proposed scheme is tested on modified 16‐machine 5‐area network and simulation results are compared.