Flexible direct current converter station submodule replacement device and method
A flexible DC and sub-module technology, which is applied in transportation and packaging, load suspension components, overhead lines/cable equipment, etc., can solve problems such as high maintenance costs, sling pulling into the valve tower, and sub-module shaking, etc., to achieve Effects of reducing maintenance costs, saving moving time, and improving efficiency and reliability
Pending Publication Date: 2021-11-05
国网湖北省电力有限公司直流公司
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Problems solved by technology
[0003] In the prior art, the sub-module replacement method of the flexible DC converter station is to use the electric hoist to cooperate with the valve hall operation vehicle to replace the sub-module. However, when the sub-module is suspended in this method, the sling of the electric hoist is relatively long and Do not pull the sling into the valve tower. When suspending the sub-module, it will cause the sub-module to shake, thereby causing damage to nearby equipment and affecting the normal working conditions of other equipment. It also requires the cooperation of multiple people and takes a long time. High maintenance cost and low efficiency
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[0037] 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 making creative efforts belong to the protection scope of the present invention.
[0038] The object of the present invention is to provide a sub-module replacement device and method of a flexible DC converter station, which can improve the efficiency and reliability of sub-module replacement of the flexible DC converter station.
[0039] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying ...
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The invention relates to a flexible direct-current converter station submodule replacement device and method. The flexible direct-current converter station submodule replacement device can be fixed in a flexible direct-current valve tower; after the device is fixed, an adjusting lifting appliance of the device is used for lifting a submodule, and then the lifted submodule slides along a guide rail of the device, so that the submodule can be dragged out of an original position; a new submodule is hoisted to the original position; and therefore submodule replacement is achieved. With the flexible direct current converter station submodule replacement device and method adopted, the moving time of the submodule can be saved, the device maintenance cost can be reduced, meanwhile, hoisting of the submodule can be accurately controlled, and the submodule replacement efficiency and reliability can be improved.
Description
technical field [0001] The invention relates to the technical field of electric equipment repair and maintenance, in particular to a sub-module replacement device and method for a flexible DC converter station. Background technique [0002] In the HVDC flexible power transmission system, the converter valve is the core equipment of the HVDC flexible converter station, and the basic components constituting the sub-modules are the sub-modules. Once the number of failures of the sub-modules exceeds its redundant number, it will lead to the pole blocking of the flexible HVDC converter station. Therefore, timely replacement of faulty sub-modules is particularly important for the normal operation of the flexible DC converter station. [0003] In the prior art, the sub-module replacement method of the flexible DC converter station is to use the electric hoist to cooperate with the valve hall operation vehicle to replace the sub-module. However, when the sub-module is suspended in ...
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Patent Timeline
Login to View More IPC IPC(8): H02G1/02B66C1/12B66C11/14B66C19/00B66C19/02
CPCH02G1/02B66C19/00B66C19/02B66C11/14B66C1/12
Inventor 黄瑶玲罗盛刘浔
Owner 国网湖北省电力有限公司直流公司