Unlock instant, AI-driven research and patent intelligence for your innovation.

Reliability assessment method for back-to-back asynchronous networking hybrid DC power transmission system

A hybrid DC and power transmission system technology, applied in the direction of electric digital data processing, power transmission AC network, special data processing applications, etc., can solve the problems of complex control and operation mode of power transmission system

Inactive Publication Date: 2016-01-13
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
View PDF3 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multi-terminal VSC-HVDC is more economical and flexible than two-terminal VSC-HVDC, but the control and operation of the transmission system are more complex

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Reliability assessment method for back-to-back asynchronous networking hybrid DC power transmission system
  • Reliability assessment method for back-to-back asynchronous networking hybrid DC power transmission system
  • Reliability assessment method for back-to-back asynchronous networking hybrid DC power transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0107] This embodiment relates to a back-to-back asynchronous networked hybrid direct current transmission system (such as figure 1 shown).

[0108] The reliability data used in the reliability analysis in this embodiment mainly refers to the reliability parameters of the relevant components and systems of the current DC system at home and abroad, and the original parameters used mainly come from:

[0109] 1. Statistical data of DC transmission system reliability over the years from Electric Power Research Institute of China Southern Power Grid Corporation;

[0110] 2. Siemens Study Report-Availability and Reliability (Guizhou-Guangdong+ / -500kVTransmission Project);

[0111] 3. CIGRE-Reports.

[0112] Through the above-mentioned reliability data collection, the reliability data collected, the reliability parameters used in the reliability components of the embodiment are shown in Table 1 and Table 2:

[0113] Table 1 Reliability parameters used by traditional DC components ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a reliability assessment method for a back-to-back asynchronous networking hybrid DC power transmission system. The reliability assessment method comprises the following steps that: A, the system is divided into multiple subsystems; B, a reliability assessment model of the subsystems is established respectively, and reliability assessment is performed on the subsystems; and C, the reliability assessment model of the system is obtained through combination, and reliability assessment is performed on the system.

Description

technical field [0001] The invention belongs to the technical field of reliability assessment methods for direct current transmission systems, and in particular relates to a reliability assessment method for back-to-back asynchronously networked hybrid direct current transmission systems. Background technique [0002] The traditional back-to-back asynchronous grid DC transmission system is a DC transmission system with zero transmission line length. This type of DC transmission is mainly used for networking or power transmission between two asynchronously operating (different frequency or the same frequency but asynchronous) AC power systems, also known as asynchronous contact stations. The rectifier station equipment and inverter station equipment for back-to-back DC transmission are usually installed in one converter station, also known as back-to-back converter station. In the back-to-back converter station, the DC side of the rectifier and the inverter are connected thr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/36G06F17/50
CPCY02E60/60
Inventor 李凌飞胡博黄莹谢开贵黎小林彭吕斌李欢李昌林李江山
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD