Charging control method and device for hybrid multi-terminal direct-current power transmission system and medium
A charging control method and power transmission system technology, which are applied in electrical components, power transmission and AC networks, etc., can solve problems such as the inability of charging methods to adapt, and achieve the effect of meeting application requirements and ensuring equipment safety.
Active Publication Date: 2020-08-14
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
View PDF15 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there is currently no precedent for the charging method of the hybrid multi-terminal direct current transmission system, and due to the particularity of the hybrid multi-terminal direct current transmission system structure, the charging method of the traditional direct current transmission system cannot be adapted to the hybrid multi-terminal direct current transmission system
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0049] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0050] seefigure 1 , is a schematic flowchart of steps of a charging control method for a hybrid multi-terminal direct current transmission system provided by an embodiment of the present invention. A charging control method for a hybrid multi-terminal direct current transmission system provided by an embodiment of the present invention is applicable to a multi-terminal direct current transmission system including one conventional direct current converter station LC...
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
Login to View More Abstract
The invention discloses a charging control method for a hybrid multi-terminal direct-current power transmission system. Firstly, line connection between a conventional direct-current converter stationand a first flexible direct-current converter station is established; then the alternating current sides of valve banks to be put into operation in the conventional direct current converter station,the first flexible direct current converter station and a second flexible direct current converter station are sequentially charged; and finally, line connection between the first flexible direct current converter station and the second flexible direct current converter station is established. For a double-valve-bank operation structure, it is required to charge the low-end valve bank and then thehigh-end valve bank. The invention further discloses a corresponding device and a storage medium. By adopting the embodiment of the invention, the connection time sequence and the charging time sequence of the converter stations and the charging time sequence of the homopolar high-end and low-end valve banks are stipulated, so that the safe charging requirement of the hybrid multi-end direct-current power transmission system is met, the equipment safety of the hybrid multi-terminal direct-current power transmission system is ensured, and the practical application requirement of direct-currentpower transmission engineering is met.
Description
technical field [0001] The invention relates to the technical field of high-voltage direct current transmission, in particular to a charging control method, device and medium for a hybrid multi-terminal direct current transmission system. Background technique [0002] At present, the power industry is developing toward the accelerated utilization of clean energy and large-scale grid interconnection. The UHV multi-terminal DC transmission system with a mixed configuration of current source converters and voltage source converters is a hot spot in recent engineering research. It will play a very important role in the development of power system, and it will soon enter the stage of engineering application. The hybrid multi-terminal DC transmission system can combine the respective advantages of traditional DC and flexible DC to realize multi-source power supply and multi-drop power reception, and provide a more flexible and fast power transmission method to obtain greater econo...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/36
CPCH02J3/36H02J2300/40Y02E60/60
Inventor 李书勇刘志江郭琦林雪华陈钦磊陈德扬卢远宏曾冠铭罗超
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD