Design and Operation of Smart Loads to Prevent Stalling in a Microgrid

Mondal, Abrez; Illindala, Mahesh S.; Khalsa, Amrit; Klapp, David A.; Eto, Joseph H.

doi:10.1109/tia.2015.2483579

Cited by 39 publications

(14 citation statements)

References 18 publications

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“…Therefore, it is desirable to be able to adjust the shape of the droop line considering the load profile as well as to minimize the impact of the network variations on the electric motor driven process. Hence, based on (9), a multi droop line piecewise linear approach is proposed that can be mathematically expressed as given by (10). Equation (10) states the combined effect of two droop factors 1 pm k and 2 pm k .…”

Section: B Multi Power-frequency Droop Line Approachmentioning

confidence: 99%

“…By doing this, it is possible to control the voltage and active power of the load, hence contributing to network frequency support; additionally, it is possible to provide local voltage support but not both. Other developments for Smart-Loads focus on improving existing load shedding schemes, such as in [10], where noncritical loads are identified and shed at appropriate times in an industrial microgrid to prevent collapse of the system. In [11], GSM communication networks are used in combination with a Smart-Load management system (located at the consumer end) to limit the power flow to the consumer in case of a power shortage condition.…”

mentioning

confidence: 99%

“…the network frequency varies as stated by(15) and(16) respectively. Thus, the only variables in(10) are 01 n f and 12 n f . Furthermore, the last term in (10) is equal to zero until 12 frequency varies.A further advantage of implementing(10) is that the multidroop line characteristic can be modified online.…”

mentioning

confidence: 99%

“…Thus, the only variables in(10) are 01 n f and 12 n f . Furthermore, the last term in (10) is equal to zero until 12 frequency varies.A further advantage of implementing(10) is that the multidroop line characteristic can be modified online. The power variation with frequency drop can be adjusted as required by manipulating 1…”

mentioning

confidence: 99%

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Virtual Energy Storage: Converting an AC Drive to a Smart Load

Carmona-Sanchez

Barnes

Apsley

2018

IEEE Trans. Energy Convers.

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This paper proposes a new Smart-Load concept using AC drives. The concept is based on a secondary control layer coordinated with the network and the load to provide active power support. The general Smart-Load concept is developed and synthesized for its practical implementation in network power-frequency support applications. A multi power-frequency droop line is proposed. The final idea is applied to a fan load powered by an AC drive based on an induction motor and a two level voltage source converter. Experimental results show that a full power-frequency response can be achieved by the Smart-Load within 2s of the network frequency deviation.

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Section: B Multi Power-frequency Droop Line Approachmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Virtual Energy Storage: Converting an AC Drive to a Smart Load

Carmona-Sanchez

Barnes

Apsley

2018

IEEE Trans. Energy Convers.

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“…The SSG controller uses frequency and voltage droop curves to perform power sharing [10]. In islanded microgrids, the power sharing, and frequency-and voltageregulation play a primordial role to ensure system stability [11], [12]. The control of both active-power sharing and frequency regulation are impossible to be achieved simultaneously by using only static droop control methods.…”

mentioning

confidence: 99%

Sliding Droop Control For Distributed Generation In Microgrids

França¹,

Emmerik²,

Caldeira³

et al. 2017

Eletrônica de Potência

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This paper proposes a fully autonomous controller that slides the droop curves of a Static Synchronous Generator, avoiding the need of hierarchical controllers to perform power sharing and frequency and voltage regulation. The aim of this controller is to enhance the primary controller in order to perform additional functionalities in a similar way as those performed in a secondary control level hierarchy, avoiding the need of a communication-system and without mischaracterizing the primary behavior as a virtual synchronous machine. The proposed seamless controller is still compatible with conventional communication-systems, and can receive inputs from hierarchical controllers. In grid-connected microgrids, distributed generation (DG) units perform active-power supply and adequate voltage regulation, whereas the system frequency is imposed by the grid. Contrarily, in islanded microgrids, DG units have to perform activepower sharing between all units, reactive-power sharing, as well as to ensure adequate frequency control and voltage regulation. When static droop curves are employed, power dispatch planning along with coordinated set of DG units is required to achieve accurate active-power sharing. This drawback is mitigated with the proposed fully autonomous controller. Simulation results were obtained in a microgrid scenario to demonstrate the effective approach for power sharing. Experimental results are also presented.

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Design and Development of Micro-grid Networks for Demand Management System Using Fuzzy Logic

Senthil

Sharma

2022

Advances in Intelligent Systems and Computing

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Design and Operation of Smart Loads to Prevent Stalling in a Microgrid

Cited by 39 publications

References 18 publications

Virtual Energy Storage: Converting an AC Drive to a Smart Load

Virtual Energy Storage: Converting an AC Drive to a Smart Load

Sliding Droop Control For Distributed Generation In Microgrids

Design and Development of Micro-grid Networks for Demand Management System Using Fuzzy Logic

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