EPE Association: EPE 2020 - DS1j-2: Micro-Grids and Smart grids-2

EPE 2020 - DS1j-2: Micro-Grids and Smart grids-2
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 06: Grids, Smart Grids, AC & DC > EPE 2020 - DS1j-2: Micro-Grids and Smart grids-2

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   A Robust Control Design to Real-Time Conditions and Modelling of a Microgrid
By Iréna HORVATIC [View]
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Abstract: The current energy transition is resulting in the development of microgrids to support massive implementations of renewable electricity generation systems. This leads to a strong constraint on the management and sizing of these networks in order to optimize their performance and make it more reliable as regard a high level of uncertainties related to real-time operations. This paper focuses on the development of an H8 robust control strategy applied to an island microgrid for its primary frequency control. An analysis is carried out for unmodelled dynamics uncertainties that could originate from the dynamics of the employed sensors, in order to determine the sizing margin of the system with the aim of guarantying its stability and dynamic performance. The results of the robustness analysis will help us to know what is necessary to integrate from the design phase in order to guarantee the most optimal and robust control during the real-time implementation of the control algorithms.

   Experimental Hybrid AC/DC-Microgrid Prototype for Laboratory Research
By Enrique ESPINA [View]
[Download]

Abstract: This paper describes a flexible testbed of a hybrid AC/DC microgrid developed for research purposes. The experimental setup is composed of 3 AC and 6 DC distributed generator units which are emulated by using three-legs inverters and settable output filters. The microgrid architecture allows to validate control schemes upstream of the modulation stage of each inverter, by using real-time targets and Matlab/Simulink interface. Two independent real-time communication networks can be used. The first one is based on optical fibre technology, whereas the second one is an Ethercat communication network. Both of them are used for instrumentation purposes and to implement the primary control level of the microgrid. To implement secondary control schemes into the microgrid (or higher control levels), an additional optical fibre-based network is used, allowing to emulate scenarios with or without communication issues such as latency, data-losses and topology changes. The built microgrid can be splitted into AC-side (3 and/or 4 wires), DC-side and interlinking-side, where both the AC and the DC side can be operated independently, according to the required electrical topology. In this testbed, several control schemes, such as proportional-integral, proportional-resonant or predictive controllers, have been investigated. Realised experimental tests include load changes, plug-and-play and communication issues scenarios.

   Frugal Innovation for Sustainable Rural Electrification
By Bunthern KIM [View]
[Download]

Abstract: In this article an original solution is proposed by using wasted electric and electronic equipment (second-life components) to create the new power generation systems for remote rural areas. This frugal innovation for rural electrification guarantees an important support social, educational and economic development goals especially in Southeast Asian countries.

EPE 2020 - DS1j-2: Micro-Grids and Smart grids-2
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 06: Grids, Smart Grids, AC & DC > EPE 2020 - DS1j-2: Micro-Grids and Smart grids-2
	[return to parent folder]

	A Robust Control Design to Real-Time Conditions and Modelling of a Microgrid By Iréna HORVATIC	[View] [Download]
Abstract: The current energy transition is resulting in the development of microgrids to support massive implementations of renewable electricity generation systems. This leads to a strong constraint on the management and sizing of these networks in order to optimize their performance and make it more reliable as regard a high level of uncertainties related to real-time operations. This paper focuses on the development of an H8 robust control strategy applied to an island microgrid for its primary frequency control. An analysis is carried out for unmodelled dynamics uncertainties that could originate from the dynamics of the employed sensors, in order to determine the sizing margin of the system with the aim of guarantying its stability and dynamic performance. The results of the robustness analysis will help us to know what is necessary to integrate from the design phase in order to guarantee the most optimal and robust control during the real-time implementation of the control algorithms.

	Experimental Hybrid AC/DC-Microgrid Prototype for Laboratory Research By Enrique ESPINA	[View] [Download]
Abstract: This paper describes a flexible testbed of a hybrid AC/DC microgrid developed for research purposes. The experimental setup is composed of 3 AC and 6 DC distributed generator units which are emulated by using three-legs inverters and settable output filters. The microgrid architecture allows to validate control schemes upstream of the modulation stage of each inverter, by using real-time targets and Matlab/Simulink interface. Two independent real-time communication networks can be used. The first one is based on optical fibre technology, whereas the second one is an Ethercat communication network. Both of them are used for instrumentation purposes and to implement the primary control level of the microgrid. To implement secondary control schemes into the microgrid (or higher control levels), an additional optical fibre-based network is used, allowing to emulate scenarios with or without communication issues such as latency, data-losses and topology changes. The built microgrid can be splitted into AC-side (3 and/or 4 wires), DC-side and interlinking-side, where both the AC and the DC side can be operated independently, according to the required electrical topology. In this testbed, several control schemes, such as proportional-integral, proportional-resonant or predictive controllers, have been investigated. Realised experimental tests include load changes, plug-and-play and communication issues scenarios.

	Frugal Innovation for Sustainable Rural Electrification By Bunthern KIM	[View] [Download]
Abstract: In this article an original solution is proposed by using wasted electric and electronic equipment (second-life components) to create the new power generation systems for remote rural areas. This frugal innovation for rural electrification guarantees an important support social, educational and economic development goals especially in Southeast Asian countries.