A DC Voltage Sag Compensator Based on SMES-Battery Hybrid Energy Storage
Qi Xie, Rui Bin Zhao, Mian Gang Tang, Sheng Hu, Hao Xu, Xin Shuai Tan, Yang Li
Abstract
This paper investigates a new DC voltage sag compensating scheme by using hybrid energy storage (HES) technology involved with one superconducting magnetic energy storage (SMES) unit and one battery energy storage (BES) unit. Two fault simulations of power supply fluctuation and sensitive load fluctuation are carried out to evaluate the dynamic voltage and power smoothing behaviours. The results obtained show that this HES-based DC voltage sag compensator has the ability to suppress the discharging / charging current overshoots for the BES unit and to enlarge the voltage compensating time for the SMES simultaneously.
Topics & Concepts
Voltage sagSuperconducting magnetic energy storageEnergy storageVoltageBattery (electricity)Power (physics)Computer scienceElectrical engineeringMaterials scienceEnergy (signal processing)Fault (geology)Computer data storageControl theory (sociology)Superconducting magnetMagnetPhysicsEngineeringPower qualitySeismologyControl (management)Artificial intelligenceQuantum mechanicsOperating systemGeologyMicrogrid Control and OptimizationAdvanced Battery Technologies ResearchFrequency Control in Power Systems