EPE Association: EPE 2020 - DS3i: Energy Harvesting and Energy Storage Systems

EPE 2020 - DS3i: Energy Harvesting and Energy Storage Systems
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 05: Renewable Energy Power Systems > EPE 2020 - DS3i: Energy Harvesting and Energy Storage Systems

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   A Comparison of Two-Stage Inverter and Quasi-Z-Source Inverter for Hybrid Energy Storage Applications
By VINCENZO CASTIGLIA [View]
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Abstract: Batteries are the primary energy sources in many applications such as Electrical Vehicles (EV) and storage facilities. It is known that batteries are high-energy-density and low-power density devices. The hybridization of the storage systems can potentially overcome the batteries drawback, using a highpower-density device such as ultracapacitors (UCs). Many researchers have been focusing on power converters optimal structure for the Hybrid Energy Storage System (HESS). Among them, the Quasi-ZSource Inverter (qZSI) is a promising solution to simplify the integration of batteries and UCs. In this paper, a comparison of the conventional inverter and the qZSI in HESS is carried out in terms of voltage stresses on the switches, voltage requirements for batteries and UCs, passive component sizing, output voltage THD and system efficiency.

   An Experimental Analysis of Circulating Current Control Circuit for Output Power from Vibration Generator for Vibration including the Third Harmonics
By Masataka MINAMI [View]
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Abstract: The vibration generators based on piezoelectric elements provide very low power. This research focuses on the method for improving in the output power. The previous research proposed a circulating current control circuit for improving in output power under only single frequency. This paper numerically and experimentally shows that the proposed circuit improves the output power for the vibration including the third harmonics.

   Design and Control of a KE (Kinetic Energy)-Compensated Gravitational Energy Storage System
By Alfred RUFER [View]
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Abstract: A gravitational energy storage device is described where the kinetic energy to recover while braking avertically moving mass is compensated by an auxiliary storage device based on supercapacitors. Thecharacteristic power surge occurring by a fast decrease of the mass's velocity is absorbed by theadded complementary device. The system structure is described, together with the associated control strategy. The paper includes also the design of the supercapacitor bank for this specific high-power component. The paper includes the simulation of the system where an energy discharge of the storage device is followed by a zero-power mode and a further an energy recharge.

   Hybrid Energy Storage System for MVDC-Grids
By Florian MAHR [View]
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Abstract: A hybrid energy storage system (HESS) to integrate different energy storage (ES) devices is presented. In this way, ES-devices with complementary physical properties can be used in medium-voltage direct current (MVDC) grids. The aggregation and integration of different ES-technologies is indispensable for operating MVDC distribution grids based on renewable energy sources (RES). State-of-the-art ES- devices are interfaced to alternating current (AC) grids by multiple power electronic converter stages and bulky transformers. Considering the independent operation of MVDC microgrids, an intermediate interface, that aggregates low voltage (LV) ES-devices, is crucial. The proposed HESS topology offers scalability and expendability for the direct integration of ES-devices and avoids lossy AC/DC conversion stages. Besides, great flexibility concerning the installation location inside the MVDC-grid is provided.

   Wire-Wound Multi-Phase Stator Based EMEH with MPPT Self-Powered Energy Management System
By Mahmoud SHOUSHA [View]
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Abstract: This paper presents a cost-effective electromagnetic energy harvester (EMEH) based on wire-woundtechnology. It also shows the energy management system used to convert the EMEH's AC voltage to aDC one. The EH system is self-powered and does not require external sources or pre charge of any ofits components and provides maximum power point tracking.

EPE 2020 - DS3i: Energy Harvesting and Energy Storage Systems
You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2020 ECCE Europe - Conference > EPE 2020 - Topic 05: Renewable Energy Power Systems > EPE 2020 - DS3i: Energy Harvesting and Energy Storage Systems
	[return to parent folder]

	A Comparison of Two-Stage Inverter and Quasi-Z-Source Inverter for Hybrid Energy Storage Applications By VINCENZO CASTIGLIA	[View] [Download]
Abstract: Batteries are the primary energy sources in many applications such as Electrical Vehicles (EV) and storage facilities. It is known that batteries are high-energy-density and low-power density devices. The hybridization of the storage systems can potentially overcome the batteries drawback, using a highpower-density device such as ultracapacitors (UCs). Many researchers have been focusing on power converters optimal structure for the Hybrid Energy Storage System (HESS). Among them, the Quasi-ZSource Inverter (qZSI) is a promising solution to simplify the integration of batteries and UCs. In this paper, a comparison of the conventional inverter and the qZSI in HESS is carried out in terms of voltage stresses on the switches, voltage requirements for batteries and UCs, passive component sizing, output voltage THD and system efficiency.

	An Experimental Analysis of Circulating Current Control Circuit for Output Power from Vibration Generator for Vibration including the Third Harmonics By Masataka MINAMI	[View] [Download]
Abstract: The vibration generators based on piezoelectric elements provide very low power. This research focuses on the method for improving in the output power. The previous research proposed a circulating current control circuit for improving in output power under only single frequency. This paper numerically and experimentally shows that the proposed circuit improves the output power for the vibration including the third harmonics.

	Design and Control of a KE (Kinetic Energy)-Compensated Gravitational Energy Storage System By Alfred RUFER	[View] [Download]
Abstract: A gravitational energy storage device is described where the kinetic energy to recover while braking avertically moving mass is compensated by an auxiliary storage device based on supercapacitors. Thecharacteristic power surge occurring by a fast decrease of the mass's velocity is absorbed by theadded complementary device. The system structure is described, together with the associated control strategy. The paper includes also the design of the supercapacitor bank for this specific high-power component. The paper includes the simulation of the system where an energy discharge of the storage device is followed by a zero-power mode and a further an energy recharge.

	Hybrid Energy Storage System for MVDC-Grids By Florian MAHR	[View] [Download]
Abstract: A hybrid energy storage system (HESS) to integrate different energy storage (ES) devices is presented. In this way, ES-devices with complementary physical properties can be used in medium-voltage direct current (MVDC) grids. The aggregation and integration of different ES-technologies is indispensable for operating MVDC distribution grids based on renewable energy sources (RES). State-of-the-art ES- devices are interfaced to alternating current (AC) grids by multiple power electronic converter stages and bulky transformers. Considering the independent operation of MVDC microgrids, an intermediate interface, that aggregates low voltage (LV) ES-devices, is crucial. The proposed HESS topology offers scalability and expendability for the direct integration of ES-devices and avoids lossy AC/DC conversion stages. Besides, great flexibility concerning the installation location inside the MVDC-grid is provided.

	Wire-Wound Multi-Phase Stator Based EMEH with MPPT Self-Powered Energy Management System By Mahmoud SHOUSHA	[View] [Download]
Abstract: This paper presents a cost-effective electromagnetic energy harvester (EMEH) based on wire-woundtechnology. It also shows the energy management system used to convert the EMEH's AC voltage to aDC one. The EH system is self-powered and does not require external sources or pre charge of any ofits components and provides maximum power point tracking.