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Technology and Applications of Power Electronics and Dispatch Strategy with Optimization and Power System Analysis in Renewable Energy Systems: Current Perspectives, Future Needs and Challenges

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Energy Sustainability".

Deadline for manuscript submissions: closed (1 January 2022) | Viewed by 4688

Special Issue Editors


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Guest Editor
1. Department of Electrical Engineering, Engineering Institute of Technology, Melbourne, Australia
2. Department of Electrical and Electronic Engineering, Green University of Bangladesh, Dhaka, Bangladesh
Interests: renewable energy integration; microgrid optimization; operation and control; power system analysis; power electronics
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Guest Editor
Consulting Engineer Power System Modelling, SQ-Power Group, GHD Pty Ltd, Melbourne VIC 3000, Australia
Interests: power system modelling and analysis; renewable energy integration; power line protection; RF communication

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Guest Editor
College of Engineering and Science, Victoria University, Footscray VIC 3011, Australia
Interests: power system dynamic modelling and analysis; renewable energy; battery storage; FACTS; smart grid and electric vehicle

Special Issue Information

Dear Colleagues,

The escalation of power-electronic-based renewable energy sources into the grid has led to stability and dynamic response concern. Power-electronic-based resources can render various ancillary services with advanced control strategies. To fully utilize the capability of power conversion, a comprehensive modeling and integration of a large-scale system is essential to understand and maintain a stable operation of power grids with the penetration of power-electronic-based renewable resources. Efficient generation of green energy is the prime challenge for researchers in this field. Due to the rapid industrialization, energy demand is increasing drastically, whereas the natural sources of energy, such as coal, oil, and natural gas, are limited. Hence, the only way to overcome the challenge is the development of renewable and inexhaustible energy. Inverters are the key components of the distributed generation system because of their function as an effective interface between renewable energy sources and the utility grid. Recently, there has been increasing interest in the use of various inverters for grid-tied renewable energy systems. Among the standalone renewable energy application techniques, implementation of the maximum power point tracking algorithm is the most popular because it improves the PV efficiency significantly. To ensure system stability and reliability, along with optimal sizing of the designed islanded microgrid, it is very important to make a bridge in between the optimal sizing domain and the power system analysis domain. A proper dispatch strategy for solar wind IHMS is required to minimize the COE, NPC and GHG emissions as well as ensure power system performance. As indicated by the recreation results under various dispatch systems, the best mixes of sustainable power sources can be discovered with the best and most exceedingly awful dispatch techniques regarding the greatest LCOE, NPC and CO2 emanations. The voltage, frequency and power reactions of every module have been examined for the committed load, and we have reproduced the ideal size of the modules and noticed the solidness for the normal point and lengths. This hybrid islanded renewable power model will be particularly useable for the islanded and separated region.

Dr. Arefin Shezan
Dr. Hasan Mahamudul
Dr. Datta Ujjwal
Guest Editors

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Keywords

  • power system modelling analysis
  • power electronics
  • HRES
  • microgrid
  • optimization
  • dispatch strategy
  • battery storage

Published Papers (2 papers)

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Research

23 pages, 16187 KiB  
Article
Optimal Sizing and Assessment of a Renewable Rich Standalone Hybrid Microgrid Considering Conventional Dispatch Methodologies
by Md. Fatin Ishraque, Sk. A. Shezan, Md. Sohel Rana, S. M. Muyeen, Akhlaqur Rahman, Liton Chandra Paul and Md. Shafiul Islam
Sustainability 2021, 13(22), 12734; https://doi.org/10.3390/su132212734 - 18 Nov 2021
Cited by 18 | Viewed by 2208
Abstract
This paper presents an evaluation of the optimized design of an off-grid hybrid microgrid for alternative load dispatch algorithms with the determination of the most optimal sizing of each equipment, analyzing the voltage and frequency outputs and various costs of the proposed microgrids. [...] Read more.
This paper presents an evaluation of the optimized design of an off-grid hybrid microgrid for alternative load dispatch algorithms with the determination of the most optimal sizing of each equipment, analyzing the voltage and frequency outputs and various costs of the proposed microgrids. Kushighat and Rajendro Bazar, two geographical locations in Bangladesh have been taken as test sites. The proposed microgrids incorporating diesel generator, renewable resources, storage device, and 23.31 kW of demand have been optimized for five conventional load dispatch methodologies: HOMER predictive dispatch, Load Following, Generator Order, Cycle Charging, and Combined Dispatch to reduce the system’s net present cost, gas discharge and cost of energy. HOMER (Hybrid Optimization of Multiple Electric Renewables) software has been used for the analysis to determine the optimal sizes and costing and the voltage-frequency performances of the microgrids are analyzed using MATLAB/Simulink. From our analysis, load following is determined as the superior approach with a minimum operating cost of 3738 USD, net present cost of 152,023 USD, CO2 discharge of 3375 kg/year and cost of energy of 0.208 USD /kWh along with a steady voltage-frequency output. Combined dispatch is determined as the worst strategy for the proposed microgrids with the highest energy cost of 0.532 USD /kWh, the operational cost of 15,394 USD, net present cost of 415,030 USD, and high CO2 discharge. At the end of this work, a comparative analysis between the proposed design, another hybrid, and traditional generation plant is also presented. The findings of this work will be appropriate for any location with an identical demand profile and meteorological estate. Full article
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16 pages, 3977 KiB  
Article
Research on Dynamic Reactive Power Compensation Scheme for Inhibiting Subsequent Commutation Failure of MIDC
by Yifan Zhang, Fei Tang, Fanghua Qin, Yu Li, Xin Gao and Nianchun Du
Sustainability 2021, 13(14), 7829; https://doi.org/10.3390/su13147829 - 13 Jul 2021
Cited by 7 | Viewed by 1523
Abstract
Commutation failure at the inverter side of an MIDC (multi-infeed HVDC) is usually caused by AC system faults. Suppose the converter bus voltage cannot recover to the normal operation level in time: in that case, the commutation failure will then develop into more [...] Read more.
Commutation failure at the inverter side of an MIDC (multi-infeed HVDC) is usually caused by AC system faults. Suppose the converter bus voltage cannot recover to the normal operation level in time: in that case, the commutation failure will then develop into more severe subsequent commutation failures or even DC blocking, which will severely threaten the security and stability of the system. Dynamic reactive power compensation equipment (DRPCE) can offer voltage support during accident recovery, stabilize voltage fluctuation and inhibit any subsequent commutation failure risk. This paper proposes the optimal DRPCE configuration scheme for maximizing both inhibitory effect and economic performance. The simulation results on MATLAB-BPA prove the scheme’s correctness and rationality, which can effectively inhibit the risk of subsequent commutation failure and obtain economic benefits. Full article
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