Decentralized generator scheduling in a nanogrid using DC bus signaling

Bryan, Jon R.; Duke, R.; Round, S.D.

doi:10.1109/pes.2004.1372983

Cited by 117 publications

(82 citation statements)

References 7 publications

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“…The average active power (P) and reactive power (Q) can be derived by passing their instantaneous values through a low pass filter. Assuming the rated values for the active and reactive power and monitoring the PCC voltage, the desired v cf can be calculated using (1). This is the voltage reference in grid-connected mode in Fig.…”

Section: A Power Output Control Modulementioning

confidence: 99%

Dynamic operation and control of a hybrid nanogrid system for future community houses

Chandrasena¹,

Shahnia²,

Rajakaruna³

et al. 2015

IET Generation, Transmission & Distribution

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Abstract-A hybrid AC-DC nanogrid (NG) can be considered as the power supply system for future community houses. In this paper, the operation and control of a NG are presented. The NG consists of an AC bus and a DC bus, interconnected through a tie-converter. Each bus may have several loads and micro sources. The NG should have an adequate generation capacity to supply its loads in off-grid mode as well as the capability of exchanging power with the utility grid. The tie-converter exchanges the power between two buses and regulates bus voltage in both buses in the case of off-grid operation. Several case studies are presented using PSCAD/EMTDC to verify the NG dynamics.

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Section: A Power Output Control Modulementioning

confidence: 99%

Dynamic operation and control of a hybrid nanogrid system for future community houses

Chandrasena¹,

Shahnia²,

Rajakaruna³

et al. 2015

IET Generation, Transmission & Distribution

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“…Currently a major effort is focused on the approaches that keep energy balance in small-scale networks, such as nanogrids [6][7], microgrids [8]. The energy management approaches are divided into groups which differ by the period of management: instantaneous (real-time) energy management, keeping balance in the period of milliseconds or seconds, short-term energy management, with periods of seconds to hours and long-term energy management, which defines energy management strategy to fulfil objectives for weeks and months.…”

Section: State Of the Art In Energy Managementmentioning

confidence: 99%

Instantaneous, Short-Term and Predictive Long-Term Power Balancing Techniques in Intelligent Distribution Grids

Suzdalenko

Galkin

2013

IFIP Advances in Information and Communication Technology

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Abstract. An increased number of distributed small generators connected to the power grid allows higher total efficiency and higher stability of electrical power supply by exporting energy to the grid to be achieved during peak demand hours. On the other hand, it poses new challenges in structuring and developing the control approaches for these distributed energy resources. This paper proposes an improved method of real-time power balancing targeted to reaching long-term energy management objectives. The novel long-term energy management technique is proposed, that is based on load categorization and regulation of energy consumption by regulating electricity price function estimated with the proposed mathematical model. The method was evaluated by a Lab-VIEW model by simulating various types of loads. The price function for the defined energy generation pattern from renewable energy sources was obtained.Keywords: Intelligent Distribution Grid, Nanogrid, Energy Management, Instantaneous Power Balancing, Short-Term Energy Management, Pricing. IntroductionThe dynamic of worldwide installed power utilizing renewable energy sources (RES) is increasing year by year [1], showing global awareness of climate change and the footprint of human behavior on the nature: like mining activities that change the landscape and damages caused by oil plants. Another problem is related to the total effectiveness of energy from the primary fuel. It relates to the total system efficiency of energy delivery to the end-user from a mining site, which includes energy losses at middle stages, like use of energy at the mining stage, energy conversion losses, transmission (mechanical and electrical) losses, as well as end-device efficiency. Consequently, locally generated energy (especially from renewable energy sources) is preferable because it excludes most of the mentioned losses. As more distributed small generators are connected to the power grid, higher total efficiency and higher stability of electrical power supply by exporting energy to the grid during peak demand hours. On the other hand, it poses new challenges in structuring and developing the control approaches for these distributed energy resources.

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“…Paper [5] proposes a kind of micro-grid, in which all DC sides of the convertors are connected together. This method can make the microgrid ac control easier.…”

Section: Introductionmentioning

confidence: 99%