Benefits of a Nonsynchronous Microgrid on Dense-Load LV Secondary Networks

Salcedo, Reynaldo; Bokhari, Abdullah; Diaz‐Aguiló, Marc; Lin, Nanzhu; Hong, Tianqi; León, Francisco de; Czarkowski, Dariusz; Flank, Shalom; McDonnell, Alan; Uosef, Resk Ebrahem

doi:10.1109/tpwrd.2015.2420594

Cited by 25 publications

(5 citation statements)

References 41 publications

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“…The asynchronous microgrid through a power-conditioning system (PCS) has been proposed and promoted recently [20][21] . A typical architecture of asynchronous microgrid is shown in Fig.…”

Section: Microgridmentioning

confidence: 99%

“…Power electronics have been employed in custom power equipment, including power-flow control [1][2][3] (e.g., solid-state transfer switch, solid-state circuit breaker, and fault-current limiter), power conditioning [4][5][6] (e.g., static synchronous compensator, dynamic voltage restorer, and unified power quality conditioner) and active power filtering [7] . More recent power electronics applications include renewable energy interface converters [8][9][10][11][12] (e.g., solar photovoltaic and wind turbine), energy-storage systems [13][14][15][16][17] Manuscript (e.g., battery and flywheel), and microgrid interface converters (for both ac and dc microgrids) [18][19][20][21][22] .…”

Section: Introduction1mentioning

confidence: 99%

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Benefits of high-voltage SiC-based power electronics in medium-voltage power-distribution grids

Wang

2021

Chin. J. Electr. Eng.

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Medium-voltage (MV) power electronics equipment has been increasingly applied in distribution grids, and high-voltage (HV) silicon carbide (SiC) power semiconductors have attracted considerable attention in recent years. This paper first overviews the development and status of HV SiC power semiconductors. Then, MV power-converter applications in distribution grids are summarized and the benefits of HV SiC in these applications are presented. Microgrids, including conventional and asynchronous microgrids, that can fully demonstrate the benefits of HV SiC power semiconductors are selected to investigate the benefits of HV SiC in detail, including converter-level benefits and system-level benefits. Finally, an asynchronous microgrid power-conditioning system (PCS) prototype using a 10 kV SiC MOSFET is presented.

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“…The asynchronous microgrid through a power-conditioning system (PCS) has been proposed and promoted recently [20][21] . A typical architecture of asynchronous microgrid is shown in Fig.…”

Section: Microgridmentioning

confidence: 99%

Section: Introduction1mentioning

confidence: 99%

Benefits of high-voltage SiC-based power electronics in medium-voltage power-distribution grids

Wang

2021

Chin. J. Electr. Eng.

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“…The regulation in the actuator input signal is governed by the speed governor design and it is given by (19).…”

Section: Modeling Of Biogas Generator Setmentioning

confidence: 99%

“…The problem of interconnecting microgrids is major area of concern because being small system, frequency, voltage and phase angle may vary with nominal disturbance. Since the microgrid consist of various generating sources, due to different power sharing capacity the chances of microgrid failure are higher in case of fault or heavy change in load or in drop in renewable energy source [19], [20]. Main cause of collapse is very fast response of inverter-based system and slow response of prime mover based reciprocating engine.…”

Section: Introductionmentioning

confidence: 99%

Microgrids dynamic stability interconnected through low voltage AC network

Singh

Verma

Bhatti

2021

IJAPE

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Renewable energy based microgrids have main challenges of maintaining its frequency-voltage characteristics and system becomes more complex when they are interconnected. These sources being intermittent in nature need to be supported by other resources like diesel/biogas such that at time of small variation in load or natural sources (wind/solar), power requirement is met through support provided by diesel/biogas-based system. Also, the controller should be fast enough to minimize the changes such that system reaches steady state. In this paper, renewable based rural microgrid consisting of wind, solar and biogas is modeled and interconnected through low voltage AC (LVAC) line. Also, one of the microgrid modeled is connected to the main grid as well as drawing power from the other microgrid. Control approach have been developed in such a way that whenever there is disturbance in the system due to increase/decrease in load or input to the renewable energy sources the biogas-based system of individual microgrid increases/decreases its generation to support the system requirement. No extra power is drawn either from the LVAC network or main grid as desired. modeling of system and its dynamic Study has been carried out in MATLAB/Simulink.

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“…The ASMG network and potential application cases are discussed in [13]. In [14], an ASMG is proposed for New York City, and ASMG benefits are demonstrated through simulation, including disturbance decoupling, fault isolation, etc. A novel load balancing strategy is proposed to show the unbalanced load support benefit provided by the ASMG PCS in [15].…”

Section: Introductionmentioning

confidence: 99%

10 kV SiC MOSFET Based Medium Voltage Power Conditioning System for Asynchronous Microgrids

et al. 2022

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Distributed energy resources (DERs) and microgrids have seen tremendous growth and research activities in recent years. Flexible DERs and asynchronous microgrids (ASMG) can have many system-level benefits over fixed DERs and conventional microgrids. The key enabler for flexible DERs and ASMG is a power converter based power conditioning system (PCS) as the interface between DERs/microgrids and the medium voltage (MV) distribution grid. High voltage (HV, >3.3 kV) silicon carbide (SiC) based MV converter is now a promising solution for the PCS. This article presents development and testing of a 10 kV SiC MOSFET based MV PCS for 13.8 kV ASMG. MV PCS converter design addressing high dv/dt issue generated by fast switching of the 10 kV SiC MOSFET is presented. The developed PCS is successfully tested at 25 kV dc 13.8 kV ac voltages and 100 kVA power. Grid support functions are also demonstrated with the developed PCS prototype and hardware tests beds, validating HV SiC converter benefits for ASMG.INDEX TERMS 10 kV SiC MOSFET, power conditioning system (PCS), medium voltage power converter, asynchronous microgrid (ASMG).

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Benefits of a Nonsynchronous Microgrid on Dense-Load LV Secondary Networks

Cited by 25 publications

References 41 publications

Benefits of high-voltage SiC-based power electronics in medium-voltage power-distribution grids

Benefits of high-voltage SiC-based power electronics in medium-voltage power-distribution grids

Microgrids dynamic stability interconnected through low voltage AC network

10 kV SiC MOSFET Based Medium Voltage Power Conditioning System for Asynchronous Microgrids

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