Reliability aspects in microgrid design and planning: Status and power electronics-induced challenges

Sandelić, Monika; Peyghami, Saeed; Sangwongwanich, Ariya; Blaabjerg, Frede

doi:10.1016/j.rser.2022.112127

Cited by 90 publications

(46 citation statements)

References 111 publications

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“…Increasing the use of power generation units using renewable energy in microgrids has led to attention to the reliability of these systems. Since such distributed generation sources have a lot of uncertainty, necessary measures should be considered to provide sustainable power to the consumer [110,111].…”

Section: Fault Tolerant Of Microgridsmentioning

confidence: 99%

A Literature Review of the Control Challenges of Distributed Energy Resources Based on Microgrids (MGs): Past, Present and Future

Razmi

2022

Energies

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Different types of distributed generation (DG) units based on renewable and non-renewable energy sources can create a local energy system in microgrids. The widespread penetration of distributed energy resources (DERs) has affected many power system issues, such as the control and operation of these networks. For the optimal operation of microgrids, optimal energy planning and management in the new space governing the distribution system requires extensive research and analysis. Getting acquainted with the latest research about the evaluation of the problems and challenges in the design of control systems plays an important role in providing a guidance map for researchers to find the recent challenges and propose new solutions. This paper tried to list the challenges of distributed generation sources for MG applications, opportunities, and solutions. These challenges are reported in hierarchical control strategies and power-sharing categories. Therefore, Model Predictive Control (MPC)-based approaches are reviewed for different recent control levels and power sharing strategies in a comprehensive and simple point of view. The performance comparison of MPC methods together and different allocated fitness functions and implementation algorithms are dedicated. Another hand, the potential of MPC methods to control inverters for increasing the reliability of the grid, which this feature could not be achieved by using conventional strategies, while has not been investigated by researchers widely, is introduced in a short review. Therefore, this paper shows an intersection guidance map for readers to facilitate future research works in these exciting and undiscovered fields.

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Section: Fault Tolerant Of Microgridsmentioning

confidence: 99%

A Literature Review of the Control Challenges of Distributed Energy Resources Based on Microgrids (MGs): Past, Present and Future

Razmi

2022

Energies

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“…Appropriate system sizing refers to the correct balance of the different electrical elements [32] and the conformity of the microgrid to the needs [33] and earnings of its final users [34]. The microgrid sizing must balance being large enough to avoid any outages and small enough to remain as affordable as possible for final users [125,126].…”

Section: Energy Issuesmentioning

confidence: 99%

Understanding Microgrid Sustainability: A Systemic and Comprehensive Review

2022

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There is a growing research interest in studying microgrids as a way to overcome the lack of access to energy. These microgrids could be the key to global energy access because of their many advantages related to flexibility, efficiency, and reliability. Despite all these qualities, microgrids remain challenging to implement in a sustainable and resilient way without a clear consensus on what causes these failures. To this end, this work proposes a new paradigm to make a multidisciplinary and comprehensive review of the operation of microgrids. By reconciling the different fields inherent to microgrids, this review enables the study of microgrids within a unified framework. Microgrids will be presented through energy, information, financial, and social fields to provide the necessary elements for their systemic understanding. Each field will be presented with its internal elements, architecture, and significant issues. By elaborating on this new vision of microgrids, this article hopes to open the way to a deeper understanding of their systemic operation and diagnose their long-term sustainability.

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“…3(a). The failure rate of a converter consisting of Q components can be obtained by (2). Various approaches are available to find the failure rate of components [5].…”

Section: Proposed Reliability Modeling Approachmentioning

confidence: 99%

“…They are employed for power conversion in various applications, recently with more attention on high-power cases such as medium voltage transmission systems, electric vehicle charging stations, renewable generations, etc. In order to guarantee the desired performance of these systems, the converters must be designed and operated with a specified reliability level [2]. Thus, reliability modeling, assessment, and enhancement become of paramount importance to ensure demanded reliability of power converters.…”

Section: Introductionmentioning

confidence: 99%

Reliability Modeling and Assessment of De-rated Redundant Power Converters

Peyghami

Abarzadeh²,

Blaabjerg

2022

2022 International Power Electronics Conference (IPEC-Himeji 2022- ECCE Asia)

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This paper proposes a reliability modeling approach and a reliability measure for redundant power converters with the possibility of de-rated operation. The proposed model takes into account the operating condition and its impact on the converter failure rate. Furthermore, the proposed reliability index is based on an availability measure, hence incorporating the impact of maintenance on the converter performance. However, the conventional reliability modeling approaches rely on either the probability of failure or availability based on the average failure rate. As a result, the proposed method introduces more accurate and realistic reliability performance. The proposed model is applicable for reliability assessment in power electronics systems for expert decision-making in asset management. The proposed approach is examined using a multi-level converter and a proper control system is proposed to operate the converter under de-rated operating conditions. The numerical analysis shows the proficiency of the proposed reliability modeling approach.

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Reliability aspects in microgrid design and planning: Status and power electronics-induced challenges

Cited by 90 publications

References 111 publications

A Literature Review of the Control Challenges of Distributed Energy Resources Based on Microgrids (MGs): Past, Present and Future

A Literature Review of the Control Challenges of Distributed Energy Resources Based on Microgrids (MGs): Past, Present and Future

Understanding Microgrid Sustainability: A Systemic and Comprehensive Review

Reliability Modeling and Assessment of De-rated Redundant Power Converters

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