Author:
Zhou Jinghua,Meng Xiangfei,Wang Hancheng,Chen Yaai
Abstract
Abstract
With the continuous development of new energy technology and the continuous improvement of people’s green and low-carbon awareness, distributed photovoltaic, wind power, and other new energy are more and more widely used. On the other hand, the development of new industries, such as electric vehicle charging stations and data centers, has increased the DC load significantly, showing the characteristics of the coexistence of AC and DC user loads. Therefore, it is of great practical significance to study how to effectively utilize new energy and realize the direct power supply of AC and DC loads to achieve the dual carbon goal. Combined with the development trend of new energy and DC transmission, this paper proposes a ±10 kV DC transmission and distribution architecture with 100% new energy consumption, which can realize the complete local consumption of new energy and reliable power supply for diversified AC and DC loads, maximizing the reduction of power loss caused by AC-DC conversion. This paper discusses the key devices and key technologies in the above architecture and analyzes the advantages and disadvantages and application scope of various methods in the current research results.
Subject
Computer Science Applications,History,Education
Reference10 articles.
1. Dynamic modeling and interaction analysis of multi-terminal VSC-HVDC grids through an impedance-based approach;Agbemuko;International Journal of Electrical Power & Energy Systems,2019
2. Mitigation of subsynchronous oscillation in a VSC-HVDC connected offshore wind farm integrated to the grid;Zhou;International Journal of Electrical Power & Energy Systems,2019
3. Design method for strengthening high-proportion renewable energy regional power grid using VSC-HVDC technology;Wu;Electric Power Systems Research,2020
4. Application of high gain DC-DC converter in a photovoltaic system;Fang;Modern Electronic Technology,2018
5. DC-DC converter with high voltage rise ratio in a photovoltaic power generation system;Liu;Journal of Nanjing University of Aeronautics and Astronautics,2012