Stability of a microgrid

Jayawarna, N.; Wu, Xueguang; Zhang, Y.; Jenkins, Nick; Barnes, Mike

doi:10.1049/cp:20060123

Cited by 57 publications

(14 citation statements)

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“…Each one of these elements must be able to independently react to voltage or frequency variations in order to keep an optimum schedule, providing energy to the highest number of loads as possible [7][8][9][10].…”

Section: Nomenclaturementioning

confidence: 99%

Renewable generation and demand response integration in micro-grids: development of a new energy management and control system

2013

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Abstract-The aim of this research resides in the development of an energy management and control system (EMCS) to control a micro-grid based on the use of renewable generation and demand resources to introduce the application of demand response concepts to the management of micro-grids in order to effectively integrate the demand side as an operation resource for the grid and improve energy efficiency of the elements. As an additional result, the evaluation of reductions in the total amount of CO 2 emitted into the atmosphere due to the improvement of the energy efficiency of the system is assessed.

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Section: Nomenclaturementioning

confidence: 99%

Renewable generation and demand response integration in micro-grids: development of a new energy management and control system

2013

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“…Microgrid stability analysis during the islanding process has been studied previously [6][7][8], in which the system modeling and control strategy of a microgrid was investigated. In [9,10], various control schemes for distributed generators were studied to determine how best to synchronize the frequency and voltage of an islanded microgrid with that of the main grid during the reconnection process.…”

Section: Introductionmentioning

confidence: 99%

“…In many previous studies [4][5][6][7][8][9][10][11][12][13], it was commonly assumed that microgrid islanding is a protective action that is intentionally taken by an individual MGO to ensure the reliability of its electricity supply. In contrast, [14] proposed a different perspective on microgrid island operation, which can be treated as load shedding by the ISO undertaken to ensure that the system operates stably.…”

Section: Introductionmentioning

confidence: 99%

Optimal Bidding of a Microgrid Based on Probabilistic Analysis of Island Operation

et al. 2016

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Island operation of a microgrid increases operation survivability and reliability when there is a large accident in a main grid. However, because a microgrid typically has limited generation capability, a microgrid operator (MGO) has to take the risk of island operation into account in its market participation and generation scheduling to ensure efficient operation. In this paper, a microgrid islanding event is interpreted as a trade suspension of a contract, and a set of islanding rules is presented in the form of a market rule. The risk of island operation is evaluated by modeling the microgrid islanding stochastically using an islanding probability function, which is defined in the form of a conditional probability to reflect the influence of outside conditions. An optimal bidding strategy is obtained for the MGO by formulating and solving an optimization problem to minimize the expected operating cost. The effectiveness of the proposed method was investigated by numerical simulations in which the proposed method and two other methods were applied to the same microgrid. Numerical sensitivity analyses of the coefficients of the islanding probability function were conducted to determine how an MGO copes with changes in outside conditions.

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“…Most DG units are not suitable for direct feeding, so it must be connected to the grid by power electronic devices. The use of power electronics devices are led to problems in the design and operation of the microgrids, which make it necessary for the design of suitable controllers and suitable operation of microgrids in parallel mode, island and state transition between these two modes of operation [5]. 2.…”

Section: Introductionmentioning

confidence: 99%

“…3. In addition to the above, other major factors affecting the microgrid stability include: control strategies of the distributed energy recourses (DERs), location of fault occurrence and inertia of the rotary motors and generators [5]. 4.…”

Section: Introductionmentioning

confidence: 99%

Optimal Voltage And Frequency Control Of A Microgrid System Using A Teaching-Learning Based Optimization (TLBO) Algorithm

Hedayati

Abbasi²

2015

International Journal of Electrical Electronics and Data Communication

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Abstract-The stability is an important topic to plan and manage the energy in the microgrids as the same as the conventional power systems. The voltage and frequency stability is one of the most important issues recently studied in microgrids. The objectives of this paper are the modelling and designing of the components and optimal controllers for the voltage and frequency control of the AC/DC hybrid microgrid under the different disturbances. Since the PI controllers have the advantages of simple structure and easy implementation, so they were designed and modeled in this paper. The teachinglearning based optimization (TLBO) algorithm is used to optimize the controllers' parameters. According to the achieved results, the optimal PI controllers have a good performance in voltage and frequency control of the microgrid.

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Stability of a microgrid

Cited by 57 publications

References 0 publications

Renewable generation and demand response integration in micro-grids: development of a new energy management and control system

Renewable generation and demand response integration in micro-grids: development of a new energy management and control system

Optimal Bidding of a Microgrid Based on Probabilistic Analysis of Island Operation

Optimal Voltage And Frequency Control Of A Microgrid System Using A Teaching-Learning Based Optimization (TLBO) Algorithm

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