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HARMONICS MITIGATION USING DQ TRANSFORM BASED SOLID STATE TRANSFORMER (SST) FOR IT AND CORPORATE BUILDINGS

Journal: Proceedings on Engineering Sciences (Vol.5, No. 2)

Publication Date:

Authors : ;

Page : 325-332

Keywords : Solid State Transformer (SST); dq-Transform; Power Quality; Dual Active Bridge Converter (DAB); Harmonic mitigation;

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Abstract

The Solid State Transformer (SST) is an advanced power electronics-based key component of the distribution system (SST). This paper presents the application of SST to corporate workspaces and IT environments with nonlinear loads to mitigate harmonics. The three stage SST is designed with rectifier, dual active bridge converter and inverter with suitable converter topologies. The system is controlled with dq-transform based Clarke and inverse Clarke transformation system. The proposed system is designed to eliminate source side current harmonics content by injecting compensating current through inverter. The proposed system is implemented and analyzed for non linear load using MATLAB/ Simulink. The power quality is achieved in terms of improved power factor and decreased % THD to permissible limit.

Last modified: 2023-06-17 22:51:17