Abstract
Microgrids have emerged as a solution to address new challenges in power systems with the integration of distributed energy resources (DER). Inverter-based microgrids (IBMG) need to implement proper control systems to avoid stability and reliability issues. Thus, several researchers have introduced multi-objective control strategies for distributed generation on IBMG. This paper presents a review of the different approaches that have been proposed by several authors of multi-objective control. This work describes the main features of the inverter as a key component of microgrids. Details related to accomplishing efficient generation from a control systems’ view have been observed. This study addresses the potential of multi-objective control to overcome conflicting objectives with balanced results. Finally, this paper shows future trends in control objectives and discussion of the different multi-objective approaches.
Highlights
Nowadays, distributed generation (DG) has become a key system for electricity production.Despite some advantages in DG, some limitations exist in their performance related to achieving single objectives when actual trends show works with multi-objective approaches [1,2]
The DG overcomes issues presented in centralized generation (CG) with improvements such as: Optimizing installation costs, providing its use to people living in places far from large cities [3] and establishing an expanded system of energy consumption that optimizes it is susceptible to the overwhelming effect of the blackouts [4]
The rest of this paper is organized as follows: Section 2 reviews concepts on inverter-based MGs definitions, Section 3 shows the multi-objective functions approach on Inverter-based microgrids (IBMG), Section 4 presents the future trends with the aim of possible lines of research, and Section 5 highlights the conclusions of this work
Summary
Nowadays, distributed generation (DG) has become a key system for electricity production. Futher approaches consider hybrid MGs to take advantage of the production and distribution trend in DC without neglecting the majority demand for AC [16,17,18] This context emphasizes the VSI support for this sources of electrical generation in a concept known as inverter-based MGs (IBMGs). The papers described above cover particular control objectives such as voltage and frequency stability, robustness against load changes, or fast transient response All these features are partially covered by one objective function subjected to constraints of different variables and this method does not take in advantage more characteristics to increase efficiency in the energy production process. The rest of this paper is organized as follows: Section 2 reviews concepts on inverter-based MGs definitions, Section 3 shows the multi-objective functions approach on IBMGs, Section 4 presents the future trends with the aim of possible lines of research, and Section 5 highlights the conclusions of this work
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