Energi Lagring for Hjem og Erhverv - Containerbaserede Løsninger
Energi Lagring for Hjem og Erhverv - Containerbaserede Løsninger
4.2.8. Research Status of Bidirectional DC-DC Topologies for HESS Hybrid electric vehicles (HEVs) predominantly employ hybrid energy storage systems (HESS) to optimize the dynamic performance and durability of fuel cells (FCs) and power batteries.
Key contributions include: Hybrid multimodule DC–DC converter The design and implementation of a hybrid multimodule DC–DC converter integrating both IGBTs and MESFETs, with the dual-active bridge topology forming the backbone of the system.
This article reviews the latest advancements in hybrid dc-dc topologies, specifically for low-power applications to address the downsides such as charge sharing loss, high current ripple, limited conversion ratio, low-power density, and efficiency.
In addition, the control of DC-link voltage, which is one of the main issues of interest in the hybrid power system, is well accomplished through a Feed-Forward controller. The employed AC-DC power converter with its effective switching method achieves good performance, leading to efficient power transfer between DC and AC buses.
However, the Sinusoidal Amplitude Converter, the Z-Source DC-DC converter and the boost DC-DC converter with resonant circuit are more suitable for low-power BEVs and PHEVs because of their soft switching, noise-free operation, low switching loss and high efficiency.
Chiu H, Lin L (2006) A bidirectional DC–DC converter for fuel cell electric vehicle driving system. IEEE Trans Power Electron 21 (4):950–958
The energy storage system consists of a Li-Ion battery bank and a bidirectional dc–dc converter that enables to charge and discharge the battery in a controlled manner. Download: Download full-size image; Fig. 2. ... In a dc hybrid power system, an energy storage device is prominent to improve the transient performance of the system, and to ...
The bidirectional buck-boost DC-DC converter is employed to connect the energy storage devices, including the battery and supercapacitor to the DC bus of the hybrid …
This paper proposes a new high gain DC/DC converter. The proposed converter achieves higher voltage-gain with reduced voltage-stress and lower duty cycle in comparison to similar topologies. The proposed converter is derived from the traditional dual inductor boost converter by adding two switched capacitor loops to the switch in the first leg and the inductor in the second leg. …
In this paper, a bidirectional non-isolated DC/DC converter for hybrid energy storage systems has been proposed. The converter is constituted by the integration of two conventional two-level topologies, with a parallel …
The use of energy storage devices such as batteries or supercapacitors is almost mandatory in fuel cell hybrid electric vehicles, in order to guarantee load leveling, assuring braking energy recovery and good performances in transient operations. To this end, converters with bidirectional power flows are needed to connect the accumulators to the dc-link of the motor …
The advancement in Power Management Integrated Circuit (PMIC) has driven the dc-dc conversion technology into a System-on-Chip (SoC) solutions, leveraging CMOS technology scaling from 180nm to 22nm and on-chip passive element integration. Concurrently, as the applications demand smaller form factor solution towards device portability with …
Power flow among the aforementioned energy sources and the EV occurs through a dc link associated with an interleaved bidirectional dc–dc converter. This topology …
The optimization of bidirectional DC–DC converters for hybrid energy storage system from the perspectives of wide bandgap device application, electromagnetic …
This paper presents an adaptive power management strategy (PMS) that enhances the performance of a hybrid AC/DC microgrid (HMG) with an interlinking converter (IC) integrated with a hybrid energy storage system (HESS). The HESS is made up of a supercapacitor (SC), a battery, and a fuel cell (FC) with complementary characteristics. The …
1 INTRODUCTION. In recent years, the use of renewable energy sources such as photovoltaic (PV) power generation, fuel cells, wind systems and so on have been noticeably developed all over the world due to economic and pollution issues [1, 2].Renewable energy sources have a low voltage and power rate.
The DC/DC buck converter control associated with the wind turbine source, uses FLC and ensures maximum power operation of the wind turbine. The wind DC/DC buck converter control allows to regulate the output voltage of the rectifier bridge at a voltage of 620 V for a wind speed of 12 m/s. The peak wind power delivered to the DC bus is 1.5 kW.
This innovative DC-DC step-up converter is engineered to efficiently manage and integrate three distinct input sources, making it exceptionally well-suited for EV applications …
This paper presents the analysis and novel controller design for a hybrid switched-capacitor (SC) bidirectional DC/DC converter, applicable for electric and plug-in hybrid electric vehicles (HEV/PHEV) energy storage system (ESS) applications, based on power of traction motor and battery current gradient. Features of voltage step-down, voltage step-up, …
A bidirectional DC/DC converter for hybrid energy storage system ZHANG Baoge(), ZHANG Zhen, WANG Donghao, LI Ping, RONG Yao School of Automation & Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, Gansu, China; Received:2019-09-01 ...
From Fig. 1, the hybrid MV DC power system is marked inside the green dotted box, which is the studied part in this paper, where v WT and v IDC represent the MV DC side voltage of the DC-DFIG and IDC; ... including DC power electronic transformers and DC/DC boost converters, can be used to increase the operating voltage level of the SMES, and ...
1 Introduction. Over the last two decades, the digital control methods have gained great interest as a result of advances in technology. Digital implementations have many advantages such as flexibility and adaptability …
The hybrid DC microgrid Simulink model using MA TLAB comprises DC–DC boost converters, PV, FC, FLC, ANN, PSO-based MPPT method, and resistive load. This pro-
Hybrid brændselscelle: ... Converdans mål med projektet var at udvikle en fungerende prototype af en tovejs galvanisk isoleret DC/DC-konverter med høj konverteringseffektivitet. Dette produkt vil være i stand til at øge energieffektiviteten på forskellige markeder, herunder transport, energilagring og marinesektoren.
A novel multiport isolated bidirectional dc-dc converter for hybrid battery and supercapacitor applications is presented, which can achieve zero voltage switching for all switches in the whole load range. The bidirectional power flow between any two of the ports is free, and the circulating power is low for the well matching of the transformer voltages of all …
The MIC methodology is interfaced in the wind/PV hybrid system for supplying the switching pulses to the double bridge DC-DC converter circuit thereby improving the stability of the EV load voltage.
This article reviews the latest advancements in hybrid dc-dc topologies, specifically for low-power applications to address the downsides such as charge sharing loss, …
The bidirectional DC-DC converter''s performance is vital for HEVs to replace traditional fuel vehicles and support green energy and carbon reduction. Non-isolated …
ISSCC 2024 Session 8 Overview: Hybrid DC-DC Converters Published in: 2024 IEEE International Solid-State Circuits Conference (ISSCC) Article #: Date of Conference: 18-22 February 2024 Date Added to IEEE Xplore: 13 March 2024 ISBN Information: Electronic ...
A multi-input DC–DC power converter is used to connect more than one energy source to reduce the system''s complexity and improve the overall system efficacy. In this survey, numerous articles have been …
The increasing number of DC loads, such as electric vehicles (EVs), has resulted in micro-grid undergoing difficulty in satisfying the various demands of such loads. The study develops a multi-objective capacity optimization allocation model for hybrid micro-grid on the bases of users'' satisfaction and the orderly charging/discharging of EVs. The proposed model …
