检索结果-南通市图书馆

Review of the Configuration and Transient Stability of Large-scale Renewable Energy Generation through hybrid dc transmission

引用

CES Transactions on Electrical Machines and Systems 2024年第2期8卷 115-126页

作者： Xinshou Tian Yongning Chi Longxue Li Hongzhi Liu Institute of Energy Power Innovation North China Electric Power UniversityBeijing 102206China China Electric Power Research Institute No.15Xiaoying East RoadQingheHaidian DistrictBeijing 100192China.

Based on the complementary advantages of Line Commutated Converter(LCC)and Modular Multilevel Converter(MMC)in power grid applications,there are two types of hybrid dc system topologies:one is the parallel connection of LCC converter stations and MMC converter stations,and the other is the series connection of LCC and MMC converter stations within a single *** hybrid dc transmission system faces broad application prospects and development potential in large-scale clean energy integration across regions and the construction of a new power system dominated by new energy sources in *** paper first analyzes the system forms and topological characteristics of hybrid dc transmission,introducing the forms and topological characteristics of converter-level hybrid dc transmission systems and system-level hybrid dc transmission ***,it analyzes the operating characteristics of LCC and MMC inverter-level hybrid dc transmission systems,provides insights into the transient stability of hybrid dc transmission systems,and typical fault ride-through control ***,it summarizes the networking characteristics of the LCC-MMC series within the converter station hybrid dc transmission system,studies the transient characteristics and fault ridethrough control strategies under different fault types for the LCC-MMC series in the receiving-end converter station,and investigates the transient characteristics and fault ride-through control strategies under different fault types for the LCC-MMC series in the sending-end converter station.

关键词： hybrid dc transmission Transient stability Configuration Control system

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

A Double-Ended Protection Principle for an LCC-VSC-MTdc System with Strong Anti-Interference Ability

引用

Energy Engineering 2023年第2期120卷 299-316页

作者： ChuanjianWu Dahai Zhang Jinghan He School of Electrical Engineering Beijing Jiaotong UniversityBeijing100044China

The dc grid technology of multi-power supply and multi-drop-point power reception is an effective solution for large-scale renewable energy integration into the power ***-commutated converter-Voltage source converter(LCC-VSC)power grids are one of the more important developmental directions of the future power grid that have occured in recent *** the multi-terminal high voltage direct current system has the problems of inconsistent boundary characteristics,inconsistent control,and fault response characteristics,which puts higher requirements on the protection ***,a completely new protection principle is proposed in this ***,the fault characteristics of distributed capacitance current are *** reactive power calculated by the distribution parameters of different frequencies is ***,the fault characteristics of dc reactive power are analyzed,and a dc reactive power extraction algorithm is *** polarity of the multi-band dc reactive power is used to construct the protection ***,the LCC-VSC power grid model verifies the correctness and superiority of the proposed protection *** proposed scheme uses dc reactive power instead of fault current to solve the long delay problem caused by distributed *** with the prior art,the proposed solution is not affected by distributed capacitance and has a stronger anti-interference ability(600Ω+10 dB+1 ms).

关键词： hybrid dc transmission double-ended protection S transform Hilbert transform

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A Single-Ended Protection Principle for LCC-VSC-MTdc System with High Resistance Fault Tolerance

引用

Energy Engineering 2023年第1期120卷 1-21页

作者： Dahai Zhang Chuanjian Wu Jinghan He School of Electrical Engineering Beijing Jiaotong UniversityBeijing100044China

Line-commutated converter-voltage source converter(LCC-VSC)power transmission technology does not have the problem of communication failure very *** therefore can support the long-distance,long-capacity transmission of electric ***,factors such as topology,control strategy,and short-circuit capacities make the traditional protection principles not fully applicable to LCC-VSC hybrid transmission *** enhance the reliability of hybrid dc systems,a single-ended principle based on transmission coefficients is proposed and ***,the equivalent circuit of the LCC-VSC hybrid dc system is analyzed and the expression of the first traveling wave is deduced ***,the concept of multi-frequency transmission coefficients is proposed by analyzing the amplitude-frequency,and the characteristics of each ***,the LCC-VSCdc system model is built to verify the reliability and superiority of the principle *** analysis and experimental verification show that the principle has strong interference resistance.

关键词： hybrid dc transmission single-ended protection principle multi-frequency transmission coefficient

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：