Conference Papers

Permanent URI for this collectionhttps://idr.nitk.ac.in/handle/123456789/28506

Browse

Has files: NoSubject: search.filters.subject.BESS

Search Results

Now showing 1 - 3 of 3
  • No Thumbnail Available
    Item
    Model predictive control of three level buck/boost converter for bipolar DC microgrid applications
    (Institute of Electrical and Electronics Engineers Inc., 2019) Nisha, K.S.; Gaonkar, D.N.
    Emergence of bipolar dc microgrids calls for the need of bipolar converter configurations for the integration of battery energy storage system (BESS), electric vehicle dc fast charging stations (EVCS) etc. This paper proposes model predictive control of a bipolar bidirectional buck/boost converter derived from three level converter (TLC) configuration in a bipolar dc microgrid. Bipolar dc microgrid is fed by power from solar PV systems and BESS. State space analysis is done and discrete model is developed. Simulation of the proposed system with model predictive control (MPC) is done in Simulink MATLAB and analysed for the voltage unbalance issues of bipolar dc microgrid under varying conditions of photovoltaic generations and load disturbance. From the simulation results, proposed converter with model predictive control technique gives faster response in mitigating the voltage unbalance and grid voltage regulation issues arising in bipolar dc microgrid. © 2019 IEEE.
  • No Thumbnail Available
    Item
    Predictive Control of Three Level Bidirectional Converter in Bipolar DC Microgrid for EV Charging Stations
    (Institute of Electrical and Electronics Engineers Inc., 2020) Nisha, K.S.; Gaonkar, D.N.
    This paper proposes model predictive control (MPC) of a bipolar bidirectional buck/boost converter derived from three level converter (TLC) configuration for integrating with electric vehicle charging station or battery energy storage system (BES) in bipolar dc microgrid structure. Bipolar dc microgrid considered here consists of two solar PV systems, dc loads and battery. The bidirectional power flow between grid and battery or EV charging stations is controlled considering the battery state of charge (SOC), total power generated and load demanded. Advantage of this converter is that it can address the dc grid voltage regulation and capacitance voltage balancing issues during variation of load and solar irradiation in bipolar dc microgrid. State space analysis is done and discrete model is developed. Simulation is done in Simulink MATLAB and analysed for voltage unbalance issues of bipolar dc microgrid under varying conditions of photovoltaic generations and load disturbance. Real time performance is tested and verified in hardware in loop environment using Typhoon HIL 402. © 2020 IEEE.
  • No Thumbnail Available
    Item
    Control of CLLC Resonant Converter in Grid Connected Electric Bus charging station
    (Institute of Electrical and Electronics Engineers Inc., 2022) Bhanja, S.; Joshua, A.M.; Vittal K, K.
    Battery Energy Storage System(BESS) is essential for a resilient microgrid. Electric vehicle charging stations operating in vehicle to grid(V2G) can act as a portable power source in the microgrid. To regulate the power flow for both BESS and electric vehicle charging stations, a bi-directional converter is necessary. This paper presents a test case where the BESS system and electric bus(EB) charging station are connected in parallel with the utility grid and loads. The Capacitor- Inductor-Capacitor (CLLC) converter is utilized as a bi-directional DC-DC converter. The CLLC converter is widely used due to its simple symmetrical design and ability to achieve soft switching. A novel dual hysteresis band logic along with variable frequency control method has been implemented for the CLLC converter. The DC link voltage, battery current, ZVS, and ZCS operations have all been examined in MATLAB/SIMULINK environment with an appropriate controller. Findings show that the BESS and EB charging station works satisfactorily in both forward and reverse modes. © 2022 IEEE.