Power Management and Control of Microgrid with Distributed and Renewable Energy Sources

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Power Electronics".

Deadline for manuscript submissions: closed (31 May 2021) | Viewed by 6179

Special Issue Editors


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Guest Editor
School of Engineering, Deakin University, 75 Pigdons road, Waurn Ponds, VIC 3216, Australia
Interests: control of power electronic converters for renewable energy (wind, solar PV, FUEL CELL) SYSTEMS; MICROGRID; BATTERY/SUPERCAPACITOR ENERGY STORAGE SYSTEM; MOTOR DRIVE FOR ELECTRIC VEHICLE (EV) and EV system technologies; cyber security in power electronics system/microgrid/smartgrid
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Guest Editor
School of Science, Technology and Engineering, University of the Sunshine Coast, Queensland 4556, Australia
Interests: power system dynamic modelling; control; fault detection; microgrid control; cyber security of power grid
Special Issues, Collections and Topics in MDPI journals
School of Engineering, Information Technology and Physical Sciences, Federation University Australia, Mount Helen, VIC 3353, Australia
Interests: sustainable energy systems & power electronics (wind turbine systems, solar photovoltaic (PV) systems, grid integration of renewable energy sources); microgrids & smart grid technologies; electric drives & electric vehicle technologies
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Microgrid can play a significant role in managing and controlling distributed and renewable-based generators and overcoming associated grid integration challenges. Different microgrid structures such as DC microgrid, AC microgrid, hybrid AC/DC microgrid, and control techniques will be implemented for smooth and reliable operation of microgrid, and new developments are required to solve several issues and challenges mainly related to design, control, power management, protection, stability, power quality and harmonics, and cyber security. The purpose of this Special Issue is to address and disseminate state-of-the-art research in microgrids by academics, industries, and research organizations. This Special Issue will bring together recent advances in microgrid and will offer a major forum for reporting advances in microgrid research and associated technologies to uptake renewable-based generation. Topics of interest include but are not limited to the following:

  • Recent advancement in microgrids and emerging microgrid technologies;
  • Microgrid structures and configurations, Design of microgrid;
  • Power electronic converters for microgrid:
    • DC to DC, AC–DC, and DC–AC converter topologies;
    • Bidirectional converter topologies for energy storage integration;
    • Multilevel converter;
    • Grid-forming smart inverter;
  • Advanced control and energy management of DC, AC, hybrid AC/DC microgrids:
    • Model predictive control of microgrid;
    • Advanced control of wind energy system, solar PV, and energy storage system;
    • Advanced control techniques for seamless transition from off-grid to on-grid modes of operation;
    • Distributed/decentralized secondary control for voltage and frequency restoration;
    • Energy management algorithm for microgrids;
  • Microgrid integration and their impact on the distribution grid:
    • Voltage regulation, system inertia and frequency regulation, distribution grid stability;
    • Power quality and harmonics;
    • Islanding detection and synchronization of microgrid;
    • Microgrid protection;
  • Energy storage for microgrid:
    • Battery energy storage;
    • Supercapacitor energy storage;
    • Energy storage for ancillary services;
  • Integration of electric vehicles in microgrids and vehicle-to- grid (V2G) and grid-to-vehicle (G2V) operation;
  • Cyber security of microgrid.

Dr. Md Enamul Haque
Dr. Sajeeb Saha
Assoc. Prof. Dr. Jiefeng Hu
Guest Editors

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Published Papers (2 papers)

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Research

18 pages, 5444 KiB  
Article
Backstepping Predictive Control of Hybrid Microgrids Interconnected by Neutral Point Clamped Converters
by J. Dionísio Barros, Luis Rocha and J. Fernando Silva
Electronics 2021, 10(10), 1210; https://doi.org/10.3390/electronics10101210 - 19 May 2021
Cited by 4 | Viewed by 1968
Abstract
In this work, DC and AC parts of hybrid microgrids are interconnected by a neutral point clamped—NPC converter controlled using a new backstepping predictive (BP) method. The NPC converter is controlled to operate in the DC microgrid voltage control mode or in the [...] Read more.
In this work, DC and AC parts of hybrid microgrids are interconnected by a neutral point clamped—NPC converter controlled using a new backstepping predictive (BP) method. The NPC converter is controlled to operate in the DC microgrid voltage control mode or in the AC microgrid power control mode. The novel backstepping predictive controller is designed using the dq state space dynamic model of the NPC converter connected to the hybrid microgrid. The designed BP controller regulates the DC voltage or AC injected power, balances the capacitor voltages, controls the AC currents, and enforces the near unity power factor. Simulation (MATLAB/Simulink) and experimental (laboratory prototype) results show that the converter can regulate the DC voltage in the DC microgrid interconnection point, by adjusting the AC power conversion to compensate variations on the loads or on the distributed renewable energy sources in the DC microgrid. AC currents are sinusoidal with low harmonic distortion. The obtained BP controller is faster at balancing capacitor voltages than PWM (pulse width modulation) control with carrier offset. The fast AC power response allows the converter to be used as a primary frequency regulator of the AC microgrid. This research is appropriate for power and voltage control in hybrid microgrids with renewable energy. Full article
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16 pages, 5428 KiB  
Article
A Photovoltaic-Fed DC-Bus Islanded Electric Vehicles Charging System Based on a Hybrid Control Scheme
by Han Huang, Senthooran Balasubramaniam, Grazia Todeschini and Surya Santoso
Electronics 2021, 10(10), 1142; https://doi.org/10.3390/electronics10101142 - 11 May 2021
Cited by 6 | Viewed by 3119
Abstract
Electric vehicle (EV) charging stations fed by photovoltaic (PV) panels allow integration of various low-carbon technologies, and are gaining increasing attention as a mean to locally manage power generation and demand. This paper presents novel control schemes to improve coordination of an islanded [...] Read more.
Electric vehicle (EV) charging stations fed by photovoltaic (PV) panels allow integration of various low-carbon technologies, and are gaining increasing attention as a mean to locally manage power generation and demand. This paper presents novel control schemes to improve coordination of an islanded PV-fed DC bus EV charging system during various disturbances, including rapid changes of irradiance, EV connection and disconnection, or energy storage unit (ESU) charging and discharging. A new hybrid control scheme combining the advantages of both master–slave control and droop control is proposed for a charging station supplying 20 EVs for a total power of 890 kW. In addition, a three-level (3L) boost converter with capacitor voltage balance control is designed for PV generation, with the aim to provide high voltage gain while employing a small inductor. The control techniques are implemented in a simulation environment. Various case studies are presented and analysed, confirming the effectiveness and stability of the control strategies proposed for the islanded charging system. For all tested conditions, the operating voltage is maintained within 5% of the rated value. Full article
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