Model Predictive Power Control of Grid-Connected Quasi Single-Stage Converters for High-Efficiency Low-Voltage ESS Integration

2021 ◽  
pp. 1-1
Author(s):  
Dehong Zhou ◽  
Jiangfeng Wang ◽  
Yunwei Li ◽  
Jianxiao Zou ◽  
Kai Sun
Keyword(s):  
Power Control ◽  
Predictive Power ◽  
High Efficiency ◽  
Low Voltage ◽  
Single Stage

A Model Predictive Power Control Approach for a Three-Phase Single-Stage Grid-Tied PV Module-Integrated Converter

2018 ◽  
Vol 54 (2) ◽  
pp. 1823-1831 ◽  
Author(s):  
Amir Moghadasi ◽  
Arman Sargolzaei ◽  
Arash Anzalchi ◽  
Masood Moghaddami ◽  
Arash Khalilnejad ◽  
...  
Keyword(s):  
Power Control ◽  
Predictive Power ◽  
Single Stage ◽  
Control Approach ◽  
Pv Module ◽  
Three Phase

Grid tied single‐stage inverter for low‐voltage PV systems with reactive power control

2018 ◽  
Vol 11 (11) ◽  
pp. 1766-1773 ◽  
Author(s):  
Thamballa Sreekanth ◽  
Narasimhamurthy Lakshminarasamma ◽  
Mahesh K. Mishra
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Low Voltage ◽  
Single Stage ◽  
Reactive Power Control ◽  
Pv Systems

scholarly journals Novel High-Efficiency High Step-Up DC–DC Converter with Soft Switching and Low Component Voltage Stress for Photovoltaic System

Processes ◽  
2021 ◽  
Vol 9 (7) ◽  
pp. 1112
Author(s):  
Yu-En Wu ◽  
Jyun-Wei Wang
Keyword(s):  
High Voltage ◽  
Output Voltage ◽  
High Efficiency ◽  
Low Voltage ◽  
Leakage Inductance ◽  
Power Switch ◽  
Half Wave Voltage ◽  
Half Wave ◽  
Voltage Stress ◽  
Voltage Doubler

This study developed a novel, high-efficiency, high step-up DC–DC converter for photovoltaic (PV) systems. The converter can step-up the low output voltage of PV modules to the voltage level of the inverter and is used to feed into the grid. The converter can achieve a high step-up voltage through its architecture consisting of a three-winding coupled inductor common iron core on the low-voltage side and a half-wave voltage doubler circuit on the high-voltage side. The leakage inductance energy generated by the coupling inductor during the conversion process can be recovered by the capacitor on the low-voltage side to reduce the voltage surge on the power switch, which gives the power switch of the circuit a soft-switching effect. In addition, the half-wave voltage doubler circuit on the high-voltage side can recover the leakage inductance energy of the tertiary side and increase the output voltage. The advantages of the circuit are low loss, high efficiency, high conversion ratio, and low component voltage stress. Finally, a 500-W high step-up converter was experimentally tested to verify the feasibility and practicability of the proposed architecture. The results revealed that the highest efficiency of the circuit is 98%.

Efficient model predictive power control with online inductance estimation for photovoltaic inverters

2019 ◽  
Vol 102 (2) ◽  
pp. 549-562 ◽  
Author(s):  
Issa Hammoud ◽  
Khaled Morsy ◽  
Mohamed Abdelrahem ◽  
Ralph Kennel
Keyword(s):  
Power Control ◽  
Predictive Power

High Efficiency Combined Aggregate – Submerged Combustion Melter–Electric Furnace for Vitrification of High-Level Radioactive Wastes

2004 ◽  
Author(s):  
L. S. Pioro ◽  
I. L. Pioro
Keyword(s):  
Electric Furnace ◽  
High Efficiency ◽  
High Capacity ◽  
Main Idea ◽  
Melting Process ◽  
Radioactive Wastes ◽  
Single Stage ◽  
Interface Surface ◽  
High Level ◽  
Submerged Combustion

It is well known that high-level radioactive wastes (HLRAW) are usually vitrified inside electric furnaces. Disadvantages of electric furnaces are their low melting capacity and restrictions on charge preparation. Therefore, a new concept for a high efficiency combined aggregate – submerged combustion melter (SCM)–electric furnace was developed for vitrification of HLRAW. The main idea of this concept is to use the SCM as the primary high-capacity melting unit with direct melt drainage into an electric furnace. The SCM employs a single-stage method for vitrification of HLRAW. The method includes concentration (evaporation), calcination, and vitrification of HLRAW in a single-stage process inside a melting chamber of the SCM. Specific to the melting process is the use of a gas-air or gas-oxygen-air mixture with direct combustion inside a melt. Located inside the melt are high-temperature zones with increased reactivity of the gas phase, the existence of a developed interface surface, and intensive mixing, leading to intensification of the charge melting and vitrification process. The electric furnace clarifies molten glass, thus preparing the high-quality melt for subsequent melt pouring into containers for final storage.

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