ECONOMIC ANALYSIS OF A PROPOSED NEW DIRECT-DRIVE PERMANENT MAGNET SYNCHRONOUS GENERATOR WIND TURBINE

Mulas, Daniel

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https://hdl.handle.net/2142/125043 Copy

Description

Title

ECONOMIC ANALYSIS OF A PROPOSED NEW DIRECT-DRIVE PERMANENT MAGNET SYNCHRONOUS GENERATOR WIND TURBINE

Author(s)

Mulas, Daniel

Issue Date

2020-05-01

Keyword(s)

PMSG-based system, despite its higher power density, increased efficiency, improved reliability, better grid-fault-ride-through capability

Abstract

Prevailing wind energy conversion systems (WECS) rely extensively on geared doubly-fed induction generators (DFIGs) in light of their reduced power electronics requirement. The existing permanent magnet synchronous generator (PMSG) based system demands a full-system-rated power converter to control energy flow. Such power electronics requirements have restricted the adoption of a PMSG-based system, despite its higher power density, increased efficiency, improved reliability, better grid-fault-ride-through capability, and reduced maintenance compared to a DFIG-based aggregation. The main challenge of the project is making an accurate economic assessment of the proposed designs of the PMSG and the power electronics (PE) associated with the design according to the input variables of each of the specific proposed technologies. The objective of this thesis is to work on the preparation of models for generation economic evaluation, the development for component-wise cost data, estimation of maintenance cost for the proposed drivetrain, taking into account distance to shore and power transmission, the analysis of parameter sensitivity and the comparative analysis of all the prototypes for the drivetrain and extension to an offshore wind project. We shall determine the levelized cost of energy (LCOE) for various values of the variables of the component-wise cost data. This work addresses the wind probabilistic characterization of a location from experimental wind data, the application of that wind characterization for the calculation of the expected annual energy generation of a single wind turbine (WT) with the mechanical characteristics of the proposed technology, and the cost analysis of the conventional and new proposed designs. The evaluation of metrics of interest such as LCOE and the fixed costs of the system for different proposed designs are useful for the evaluation of the characteristics of the most profitable designs and the designs with better generation performance. We compute valuable information for the choice of actual parameters of the PMSG and ii the PE. In addition, we evaluate the computed numerical results and provide concluding remarks of the economic evaluation of the proposed technology.

Type of Resource

text

Language

eng

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