The Use of Power Line Communication in Standalone Microgrids

Miller, Dmitry; Mirzaeva, Galina; Townsend, Christopher D.; Goodwin, Graham C.

doi:10.1109/tia.2021.3057343

Cited by 24 publications

(9 citation statements)

References 24 publications

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“…In [59], RS-TPC has been realized using three-phase converters to enable communication between different converters and energy sources in the μ-grid and to share their energy in an optimal manner. The proposed RS-TPC injects an AC voltage into the shared line using the voltage reference v T PC re f = v CC re f + V δ sin(ω δ t ) where v CC re f , V δ , and ω δ are voltage from the current controller, TPC voltage amplitude and frequency, respectively.…”

Section: µ-Gridsmentioning

confidence: 99%

Overview of Talkative Power Conversion Technologies

Liserre

Beiranvand

Leng

et al. 2023

IEEE Open J. Power Electron.

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Power Line Communication (PLC) and Simultaneous Wireless Information and Power Transfer (SWIPT) are popular examples of applications, where power and information are transmitted simultaneously. In most cases, different devices have been used to generate the power and communication signals independently. Usually, the information is superimposed onto the power signal using an external modulator. Recently, power converters have been used to generate pulses not just for power conversion but also for information transfer simultaneously. This approach represents a fundamental difference because it exploits the signal processing potential of Pulse Width Modulation (PWM), where for power conversion only the average pulse width is used, while the information is represented by the harmonics instead of being filtered out, as typically done in power electronics. The concept of embedding information into the switching ripple generated by a switched-mode power converter has recently been dubbed Talkative Power (TP), in this paper referred as Talkative Power Conversion (TPC). TPC technologies are reviewed in non-isolated and isolated converters in this paper. Potential applications include visible light communications, battery management systems, switching reluctance generators/motors, microgrids, and wireless electric vehicle charging stations. Finally, trending topics are identified.INDEX TERMS Talkative power conversion, pulse width modulation converters, power line communication, switching ripple communication, simultaneous wireless information and power transfer.

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Section: µ-Gridsmentioning

confidence: 99%

Overview of Talkative Power Conversion Technologies

Liserre

Beiranvand

Leng

et al. 2023

IEEE Open J. Power Electron.

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“…Alternatively, in agreement with the power sharing ideas presented in this paper, the desired adjustment of the DG inverters in the proposed microgrid may be achieved without telecommunication links, by using the current flow as the communication mechanism. In [34] the authors have explored the idea of Power Line Communication (PLC) via frequency signalling, which is illustrated in Fig. 11.…”

Section: Flexibility and Fault Tolerancementioning

confidence: 99%

“…To continue having identical dynamics, the steady-state per unit loading adjustments of DGs is accompanied by the corresponding relative change of their control gains. Due to bandwidth separation, the slow-acting PLC-based does not affect the main current sharing mechanism [34].…”

Section: Flexibility and Fault Tolerancementioning

confidence: 99%

Decentralised Droopless Control of Islanded Radial AC Microgrids Without Explicit Communication

Miller

Mirzaeva

Townsend

et al. 2022

IEEE Open J. Ind. Applicat.

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A microgrid is a proven effective way to integrate renewable resources. This study presents an innovative control concept for decentralized AC microgrids, which is based on the architectural advantage of a radial microgrid structure. Under the proposed concept, power sharing between the distributed sources is achieved without droop control. Thus the need for a secondary control level is eliminated. Moreover, the use of explicit communication is replaced in the paper by a novel coordination mechanism based on the locally measured currents.The paper shows that, with a special design of the current control of grid-feeding converters, the proposed microgrid automatically provides equitable sharing of the load demand amongst the distributed generators (DGs). Moreover, the dynamic responses of the DGs are identical and decoupled from one another. It is further shown that the proposed AC microgrid is stable in the presence of any type of load. The findings of the paper are validated by simulations and laboratory experiments 1 .

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“…Due to the nature of DC electricity, it can more efficiently aggregate large-scale DGs, such as solar and wind power generation. Additionally, DC electricity aligns with the power consumption methods of many electronic devices and new energy vehicles, avoiding energy losses associated with AC-DC conversion [3][4][5]. Therefore, vigorously developing new energy sources and building a new power system based on the structure of sources, grids, loads, and storage is the necessary path to achieve this target [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Coordinated Control of DC Distribution System Based on Three‐Level Energy Interaction

Tian,

Chen,

Wang

2023

IEEJ Transactions Elec Engng

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When compared to the AC distribution system, the DC distribution system can better adapt to the integration of large‐scale distributed generations (DGs), but it also has some challenges and limitations due to its complex control. This paper investigates the coordinated control of a DC distribution system containing multiple DC microgrids and proposes a coordinated control strategy for energy interaction at the microgrid, cluster, and main grid‐levels to address this problem. To begin, the interaction at the microgrid‐level employs a decentralized control strategy that only requires local voltage information and adjusts the operation modes of each unit within the microgrid based on the bus voltage information. Second, a new power equalization optimization control is added to the cluster‐level interaction based on the decentralized control strategy to achieve power equalization among microgrids with different line impedances. Furthermore, at the main grid‐level, the interaction uses one‐way communication of time‐of‐use (TOU) price to optimize system economy, ensuring that even if communication fails, the system's operation reliability is not compromised. Finally, simulation results demonstrate that the proposed three‐level energy interaction and switching meet the system's reliability requirements. Furthermore, the proposed coordinated control strategy reduces the system's reliance on communication while maintaining economic efficiency. © 2023 Institute of Electrical Engineer of Japan and Wiley Periodicals LLC.

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The Use of Power Line Communication in Standalone Microgrids

Cited by 24 publications

References 24 publications

Overview of Talkative Power Conversion Technologies

Overview of Talkative Power Conversion Technologies

Decentralised Droopless Control of Islanded Radial AC Microgrids Without Explicit Communication

Coordinated Control of DC Distribution System Based on Three‐Level Energy Interaction

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