A Novel SMC Integrated WECs for Wind Farm Commitment Implementing Battery Storage System

Abstract

This paper presents a novel approach to wind farm commitment by introducing a Matrix Converter (MC) based Wind Energy Conversion System (WECs) that incorporates a battery charging system. The proposed system integrates a Sparse Matrix Converter (SMC) with the wind energy model to optimize power supply to a standalone load and maintain a consistent power level at the load end. The SMC, a member of the Indirect Matrix Converter (IMC) family excels in reducing switch count while achieving equivalent performance to conventional AC-DC-AC converters, Direct Matrix Converters (DMCs), and IMCs. To fulfil the wind farm objective, the integration of a battery storage system into the DC link of the SMC is implemented, thereby obviating the requirement for an additional AC-DC converter during the battery charging process, as typically found in conventional AC-AC converter-based battery storage systems. The Voltage Oriented Control (VOC) scheme extracts maximum power from WECs and facilitates efficient power flow from the source to the load. The proposed system utilizes a bi-directional buck-boost converter, which employs an advanced bi-directional buck-boost control technique to effectively regulate the operation of the battery storage system to meet the load demands in accordance with the speed variation. To control the switching operation of the converter, a modified Space Vector Pulse Width Modulation (SVPWM) technique is employed, incorporating zero DC link current commutation. The proposed system demonstrates improved efficiency, reduced switching losses, and cost-effectiveness compared to traditional converters, and it is successfully validated through MATLAB simulations followed by experimental verification.