Design and Control of Utility Grid Interfaced Solar Photovoltaic System for Bipolar DC Microgrid

Dodda, Satish Reddy; Sandepudi, Srinivasa Rao

doi:10.1007/978-981-16-1978-6_17

Cited by 3 publications

(1 citation statement)

References 30 publications

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“…This duty ratio is compared with repetitive waveform to obtain gate pulses to boost converter. P ‐ V and I ‐ V characteristics, and control of the SPV system are explained 31 …”

Section: Control Of Proposed Bi‐polar DC Microgridmentioning

confidence: 99%

Control of three‐level bidirectional buck‐boost converter for battery energy storage system in bi‐polar DC microgrid

Dodda,

Sandepudi

2024

Energy Storage

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This paper deals with the model predictive current control of a three‐level bidirectional buck‐boost converter for a battery energy storage system in a bi‐polar direct current (DC) microgrid. It comprises a solar photovoltaic system, a wind energy system, a battery and DC loads. The proposed control scheme provides voltage balance and voltage regulation at the bi‐polar DC link during dynamic operating conditions, such as variations in solar irradiance, wind velocity and load. Predictive current control utilises the converter's discrete behaviour to identify the suitable switching states that minimise the cost function. Furthermore, bidirectional power flow capabilities allow the connection of energy storage devices, such as batteries and ultra‐capacitors, to the bi‐polar DC microgrid. The proposed system is verified through simulations and validated on a lab‐scale prototype. The results have been found satisfactory with respect to steady‐state error, peak overshoot, and settling time.

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“…This duty ratio is compared with repetitive waveform to obtain gate pulses to boost converter. P ‐ V and I ‐ V characteristics, and control of the SPV system are explained 31 …”

Section: Control Of Proposed Bi‐polar DC Microgridmentioning

confidence: 99%

Control of three‐level bidirectional buck‐boost converter for battery energy storage system in bi‐polar DC microgrid

Dodda,

Sandepudi

2024

Energy Storage

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Design and control of utility grid-tied bipolar DC microgrid

Dodda,

Sandepudi

2024

International Journal of Emerging Electric Power Systems

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This paper explains in detail the design and control of a utility grid-connected bipolar DC microgrid, which consists of a solar photovoltaic system (SPV), a wind energy conversion system (WECS), a battery energy storage system (BESS) at the DC bus, and a three-level neutral point clamped (NPC) converter to connect the DC microgrid to the utility grid. A three-level bidirectional DC–DC converter at the battery energy storage system (BESS) is controlled with model predictive current control (MPCC), and a three-level NPC converter is controlled with a voltage-oriented control based proportional resonant (VOC-PR) controller. The proposed MPCC scheme for the three-level bidirectional DC–DC converter and the VOC-PR control scheme for the three-level NPC converter coordinate with each other to balance and regulate the voltage at the bipolar DC microgrid, control the power flow to the loads at the DC microgrid and the load at the point of common connection (PCC), and also inject or draw power from the utility grid and BESS based on the availability of Renewable Energy Sources (RES). Simulation and experimental results are presented to demonstrate the effectiveness of the proposed MPCC control scheme.

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Adaptive centralized energy management algorithm for islanded bipolar DC microgrid

Dodda,

Sandepudi

2023

International Journal of Emerging Electric Power Systems

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In this paper, an adaptive centralized energy management algorithm is developed for an islanded bipolar DC microgrid (BDCMG). The proposed microgrid consists of a solar photovoltaic (SPV) system, a wind energy conversion system (WECS), and a battery energy storage system (BESS). The SPV and WECS are operated in maximum power point tracking mode to extract maximum power. The adaptive control algorithm focus on power sharing at a bipolar DC bus based on variations in wind speed, solar irradiance, battery state of charge (SoC), and load. Furthermore, this algorithm maintains voltage balance and voltage regulation on a bipolar DC bus without the use of a communication link and provides effective energy management through coordinated control of renewable energy sources and BESS. The efficacy of the proposed bipolar DC microgrid is simulated and validated on a lab scale prototype to verify its feasibility, and it is observed that the results are found to be satisfactory.

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Design and Control of Utility Grid Interfaced Solar Photovoltaic System for Bipolar DC Microgrid

Cited by 3 publications

References 30 publications

Control of three‐level bidirectional buck‐boost converter for battery energy storage system in bi‐polar DC microgrid

Control of three‐level bidirectional buck‐boost converter for battery energy storage system in bi‐polar DC microgrid

Design and control of utility grid-tied bipolar DC microgrid

Adaptive centralized energy management algorithm for islanded bipolar DC microgrid

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