Mathematical Modeling and Stability Analysis of a Microgrid in Island Operation

Beg, Nauman; Armstorfer, Andreas; Rosin, Argo; Biechl, Helmuth

doi:10.1109/sest.2018.8495694

Cited by 7 publications

(3 citation statements)

References 3 publications

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“…The linearization of Equations ( 8) and ( 9) for V n and Q n around the operation point (V nx,0 , V ny,0 , ∅ n,0 ) and using Equation (11) in Equation ( 12) results in a state space representation as in [39] …”

Section: Modeling Of Ing System Mathematical Modeling Of Ing Systemmentioning

confidence: 99%

Integrated Nanogrid for the Impressed Current Cathodic Protection System in Desalination Plant

2023

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The impressed current cathodic protection (ICCP) scheme is a more reliable and efficient method of corrosion prevention mechanism than the sacrificial method. Currently, the grid connected transformer rectifier units supported with a battery banks are used for the ICCP-based corrosion protection system in the desalination plant. This conventional method is entirely grid-dependent, more expensive, and suffers during prolonged grid failure. The present trend of industrialization is the application of multi-renewable energy sources based on a nanogrid to power the station’s auxiliary power supply. This paper introduces a concept of distributed energy resources (DERs) operated integrated nanogrid (ING) system to provide a stable power supply solution to the ICCP scheme. A 100-million-litter per day capacity-based seawater desalination plant (SWDP) in India has been chosen as the test station. The conceptual hardware design and operational logic details for smooth integration of the integrated nanogrid module into the ICCP scheme of the Desalination plant is proposed. This research aims to investigate the behaviour of DERs during on-grid, off-grid and switching over from one mode of operation to another and vice-versa by using the accelerated Gauss–Seidel method in ETAP software (version 16.0.0). The simulation results confirm that the ING suffers from a high-frequency change rate during islanded operation, and in some cases, a complete blackout occurs. A PLC-based Smart Versatile ING Controller has been suggested to overcome the blackout issue. Finally, it has been proven that the stability of an industrial power system can be improved further by introducing the ING module into it.

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Section: Modeling Of Ing System Mathematical Modeling Of Ing Systemmentioning

confidence: 99%

Integrated Nanogrid for the Impressed Current Cathodic Protection System in Desalination Plant

2023

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“…Researchers have compared, analyzed, and classified the voltage stability indices from different aspects [64]. At present, the most commonly used VSI classification scheme involves dividing VSIs into two categories based on the Jacobian matrix and system variables according to the VSI formula [65]. In addition, in [66][67][68], several common indicators are compared and classified based on load shedding and optimal storage in critical cases.…”

Section: Voltage Stability Indices Reviewmentioning

confidence: 99%

Analytical Methods of Voltage Stability in Renewable Dominated Power Systems: A Review

2022

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The ongoing development of renewable energy and microgrid technologies has gradually transformed the conventional energy infrastructure and upgraded it into a modernized system with more distributed generation and localized energy storage options. Compared with power grids utilizing synchronous generation, inverter-based networks cannot physically provide large amounts of inertia, which means that more advanced and extensive studies regarding stability considerations are required for such systems. Therefore, appropriate analytical methods are needed for the voltage stability analysis of renewable-dominated power systems, which incorporate a large number of inverters and distributed energy sources. This paper provides a comprehensive literature review of voltage stability analyses of power systems with high levels of renewable energy penetration. A series of generalized evaluation schemes and improvement methods relating to the voltage stability of power systems integrated with various distributed energy resources are discussed. The existing voltage stability analysis methods and corresponding simulation verification models for microgrids are also reviewed in a systematic manner. The traditional and improved voltage stability analysis methods are reviewed according to the microgrid operation mode, the types of distributed generators, and the microgrid configurations. Moreover, the voltage stability indices, which play a crucial role in voltage stability assessments, are critically evaluated in terms of the applicable conditions. The associated modeling and simulation techniques are also presented and discussed. This contribution presents guidelines for voltage stability analysis and instability mitigation methods for modern renewable-rich power systems.

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“…Several research works propose the utilisation of smallsignal stability analysis methods to investigate the dynamic performance of MGs [31], [291]- [294]. For instance, in [292], the dynamic modelling and stability analysis of MGs in islanded operation, are presented. Also, the stability limits are evaluated through eigenvalue analysis, which is based on the quasi-steady-state approach.…”

Section: Stability Analysis Of Microgrids Under Distributed Controlmentioning

confidence: 99%

Distributed Control Strategies for Microgrids: An Overview

et al. 2020

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There is an increasing interest and research effort focused on the analysis, design and implementation of distributed control systems for AC, DC and hybrid AC/DC microgrids. It is claimed that distributed controllers have several advantages over centralised control schemes, e.g., improved reliability, flexibility, controllability, black start operation, robustness to failure in the communication links, etc. In this work, an overview of the state-of-the-art of distributed cooperative control systems for isolated microgrids is presented. Protocols for cooperative control such as linear consensus, heterogeneous consensus and finitetime consensus are discussed and reviewed in this paper. Distributed cooperative algorithms for primary and secondary control systems, including (among others issues) virtual impedance, synthetic inertia, droopfree control, stability analysis, imbalance sharing, total harmonic distortion regulation, are also reviewed and discussed in this survey. Tertiary control systems, e.g., for economic dispatch of electric energy, based on cooperative control approaches, are also addressed in this work. This review also highlights existing issues, research challenges and future trends in distributed cooperative control of microgrids and their future applications.

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Mathematical Modeling and Stability Analysis of a Microgrid in Island Operation

Cited by 7 publications

References 3 publications

Integrated Nanogrid for the Impressed Current Cathodic Protection System in Desalination Plant

Integrated Nanogrid for the Impressed Current Cathodic Protection System in Desalination Plant

Analytical Methods of Voltage Stability in Renewable Dominated Power Systems: A Review

Distributed Control Strategies for Microgrids: An Overview

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