scholarly journals Single Magnetic Element-Based High Step-Up Converter for Energy Storage and Photovoltaic System with Reduced Device Count

Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-19
Author(s):  
Muhammad Arif ◽  
Mohsin Shahzad ◽  
Qianmu Li ◽  
Jawad Saleem ◽  
Muhammad Shamrooz Aslam ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Energy Storage ◽  
Low Voltage ◽  
Storage System ◽  
Energy Storage System ◽  
High Energy ◽  
Power Converter ◽  
Photovoltaic System ◽  
Magnetic Element ◽  
Zero Current Switching

The multiport DC-DC power converter is a prominent area of research in power electronics due to its highly dense design, reduced device count, and high energy efficiency. In this paper, a nonisolated single magnetic element-based high step-up three-port converter for an energy storage system is presented. The proposed converter has two input ports and one output port. The coupled inductor with switched capacitor is used to achieve high voltage gain. The key features of the proposed converter are high conversion gain, low voltage stress, zero voltage switching (ZVS), and zero current switching (ZCS). The detailed theoretical analysis and operation of the converter are elaborated. The energy efficiency of the proposed converter is calculated and compared with the other counterparts. Ansys Maxwell is used for the coupled inductor finite element modeling. To verify the applicability and functionality of proposed converter, a 100  W converter with two inputs ( 48  V and 96  V ) and one output 360  V at 100  kHz is tested in the laboratory.

The Design of the Hybrid Energy Storage System in Hybrid Construction Machinery

2014 ◽  
Vol 875-877 ◽  
pp. 1934-1938 ◽  
Author(s):  
Hong Mei Wang
Keyword(s):  
Energy Storage ◽  
Storage System ◽  
Energy Storage System ◽  
High Energy ◽  
Power Converter ◽  
High Energy Density ◽  
Hybrid Energy ◽  
Construction Machinery ◽  
Hybrid Ess ◽  
Hybrid Construction

The energy storage system (ESS) is playing an important role in the hybrid system. Because of the high power density of the supercapacitor (SC) and the high energy density of the battery, the hybrid ESS with the two energy storing devices is widely used in the hybrid vehicles. But the research on the hybrid ESS in hybrid construction machinery is nearly blank. According to the characteristics of the hybrid ESS, the structure applied to the hybrid construction machinery is put forward, and the power converter DC-DC is designed and simulated, too. The simulation results prove that the bidirectional DC-DC can meet the requirement of the hybrid ESS.

scholarly journals Using Energy Storage Inverters of Prosumer Installations for Voltage Control in Low-Voltage Distribution Networks

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1121
Author(s):  
Rozmysław Mieński ◽  
Przemysław Urbanek ◽  
Irena Wasiak
Keyword(s):  
Energy Storage ◽  
Control Strategy ◽  
Reactive Power ◽  
Low Voltage ◽  
Storage System ◽  
Distribution Networks ◽  
Energy Storage System ◽  
Voltage Regulation ◽  
Active Power ◽  
Total Power

The paper includes the analysis of the operation of low-voltage prosumer installation consisting of receivers and electricity sources and equipped with a 3-phase energy storage system. The aim of the storage application is the management of active power within the installation to decrease the total power exchanged with the supplying network and thus reduce energy costs borne by the prosumer. A solution for the effective implementation of the storage system is presented. Apart from the active power management performed according to the prosumer’s needs, the storage inverter provides the ancillary service of voltage regulation in the network according to the requirements of the network operator. A control strategy involving algorithms for voltage regulation without prejudice to the prosumer’s interest is described in the paper. Reactive power is used first as a control signal and if the required voltage effect cannot be reached, then the active power in the controlled phase is additionally changed and the Energy Storage System (ESS) loading is redistributed in phases in such a way that the total active power set by the prosumer program remains unchanged. The efficiency of the control strategy was tested by means of a simulation model in the PSCAD/EMTDC program. The results of the simulations are presented.

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