Modeling of Electromagnetic Interference and PLC Transmission for Loads Shedding in a Microgrid

Guezgouz, D.; Chariag, Dhia Elhak; Raingeaud, Yves; Bunetel, Jean-Charles Le

doi:10.1109/tpel.2010.2097608

Cited by 30 publications

(11 citation statements)

References 24 publications

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“…Therefore, the local control strategies do not apply since the voltage is regulated to a constant value by a grid tied converter. Coordination based on scheduling of appliances using decentralized [132], distributed [133] and centralized [134]- [137] control methods have been proposed.…”

Section: B High Efficiency Householdsmentioning

confidence: 99%

DC Microgrids—Part II: A Review of Power Architectures, Applications, and Standardization Issues

Dragičević

Liu

Vasquez

et al. 2016

IEEE Trans. Power Electron.

1,149

402

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DC microgrids (MGs) have been gaining a continually increasing interest over the past couple of years both in academia and industry. The advantages of DC distribution when compared to its AC counterpart are well known. The most important ones include higher reliability and efficiency, simpler control and natural interface with renewable energy sources (RESs), electronic loads and energy storage systems (ESSs). With rapid emergence of these components in modern power systems, the importance of DC in today's society is gradually being brought to a whole new level. A broad class of traditional DC distribution applications such as traction, telecom, vehicular and distributed power systems can be classified under DC MG framework and ongoing development and expansion of the field is largely influenced by concepts used over there. This paper aims firstly to shed light on the practical design aspects of DC MG technology concerning typical power hardware topologies and their suitability for different emerging smart grid applications. Then, an overview of the state of the art in DC MG protection and grounding is provided. Owing to the fact that there is no zero current crossing, an arc that appears upon breaking DC current cannot be extinguished naturally, making the protection of DC MGs a challenging problem. In relation with this, a comprehensive overview of protection schemes which discusses both design of practical protective devices and their integration into overall protection systems is provided. Closely coupled with protection, conflicting grounding objectives, e.g. minimization of stray current and common mode voltage are explained and several practical solutions are presented. Also, standardization efforts for DC systems are addressed. Finally, concluding remarks and important future research directions are pointed out.Index Terms -DC microgrid (MG), power architectures, protection and grounding, standardization. 0885-8993 (c)

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Section: B High Efficiency Householdsmentioning

confidence: 99%

DC Microgrids—Part II: A Review of Power Architectures, Applications, and Standardization Issues

Dragičević

Liu

Vasquez

et al. 2016

IEEE Trans. Power Electron.

1,149

402

View full text Add to dashboard Cite

show abstract

“…Additional investment is required to realize this communication method. Use of Power Line Communication (PLC) is becoming popular for control of ac electrical systems [10]. Study on the viability of PLC for low voltage dc system is reported in [11].…”

Section: For Communication Between Dso/tso and The Microgrids Local mentioning

confidence: 99%

Distributed Control to Ensure Proportional Load Sharing and Improve Voltage Regulation in Low-Voltage DC Microgrids

Anand

Fernandes

Guerrero

2013

IEEE Trans. Power Electron.

809

426

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DC microgrids are gaining popularity due to high efficiency, high reliability and easy interconnection of renewable sources as compared to ac system. Control objectives of dc microgrid are: (i) ensure equal load sharing (in per unit) among sources and (ii) maintain low voltage regulation of the system. Conventional droop controllers are not effective in achieving both the aforementioned objectives simultaneously. Reasons for this are identified to be the error in nominal voltages and load distribution. Though centralized controller achieves these objectives, it requires high speed communication and offers less reliability due to single point of failure. To address these limitations, this paper proposes a new decentralized controller for dc microgrid. Key advantages are high reliability, low voltage regulation and equal load sharing, utilizing low bandwidth communication. To evaluate the dynamic performance, mathematical model of the scheme is derived. Stability of the system is evaluated by eigenvalue analysis. The effectiveness of the scheme is verified through detailed simulation study. To confirm the viability of the scheme, experimental studies are carried out on a laboratory prototype developed for this purpose. Controller Area Network (CAN) protocol is utilized to achieve communication between the sources.

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“…A general overview of the performance of PLC in electrical networks can be seen in [27][28]. While a wide amount of studies dealing with the influence of emissions in PLC focus on domestic devices [29][30], also analyses of PLC disturbances in electrical vehicles can be found in literature [31]. Finally, [32] includes several simulations of the suitability of PLC for smart metering under different noise conditions.…”

Section: Disturbances Introduced By Distributed Energy Resources In Plcmentioning

confidence: 99%

Study of Unwanted Emissions Generated by Distributed Energy Resources in Microgrids and their Influence over Narrow Band Power Line Communications

Uribe-Pérez¹,

Angulo²,

Hernández³

et al. 2016

Preprint

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Distributed Energy Resources might have a severe influence on Power Line Communications, as they can generate interfering signals and high frequency emissions or supraharmonics that may cause loss of metering and control data. In this paper, the influence of various energy resources on Narrowband Power Line Communications is described and analyzed through several test measurements performed in a real microgrid. Accordingly, the paper describes the effects on smart metering communications through MAC layer analysis. Results show that the switching frequency of inverters and the presence of battery chargers are remarkable sources of disturbance in low voltage distribution networks. In this sense, the results presented can contribute to efforts towards standardization and normative of emissions at higher frequencies higher, such as CENELEC EN 50160 and IEC/TS 62749.

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Modeling of Electromagnetic Interference and PLC Transmission for Loads Shedding in a Microgrid

Cited by 30 publications

References 24 publications

DC Microgrids—Part II: A Review of Power Architectures, Applications, and Standardization Issues

DC Microgrids—Part II: A Review of Power Architectures, Applications, and Standardization Issues

Distributed Control to Ensure Proportional Load Sharing and Improve Voltage Regulation in Low-Voltage DC Microgrids

Study of Unwanted Emissions Generated by Distributed Energy Resources in Microgrids and their Influence over Narrow Band Power Line Communications

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