Test system suitable for MMC valve base controller gathering control unit
A valve-based controller and testing system technology, applied in the direction of electrical testing/monitoring, etc., can solve problems such as undiscovered VBC summary units, and achieve the effects of ensuring hardware reliability and safety, stable operation capabilities, and good control and protection
Inactive Publication Date: 2016-07-27
STATE GRID CORP OF CHINA +2
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Problems solved by technology
However, no device design scheme for in-depth testing of VBC summarization units has been found at home and abroad
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[0025] 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 fall within the protection scope of the present invention.
[0026] Such as Figures 1 to 2 As shown, a kind of test system of the present invention is applicable to the summary control unit of the MMC valve base controller, the summary unit is a part of the valve base controller, one end of which is connected to the current unit, and the other end is connected to the segmentation unit: the summary unit is used To receive the control commands issued by the current unit, such as the number of levels that the bridge arm...
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The invention provides a test system suitable for an MMC valve base controller gathering control unit. The test system operates through an upper computer and a lower computer. The upper computer comprises an operation layer. The lower computer comprises an interface layer, a model layer and a control layer. The interface layer is connected with a gathering unit and the model layer. The model layer constructs a digital model. The control layer reports the state of the digital model to the operation layer. The operation layer controls the control layer to operate the digital model. Compared with the prior art, the test system suitable for the MMC valve base controller gathering control unit, which is provided by the invention has the advantages that the gathering unit of the valve base controller is used as the test object; the gathering unit is used as the object to carry out in-depth test on the valve base controller; the valve base controller in a secondary system has the capacity of continuous and stable operation; the hardware reliability and safety of the whole set of the valve base controller VBC are ensured; and a converter valve is well controlled and protected.
Description
technical field [0001] The invention relates to the field of flexible direct current transmission, in particular to a test system suitable for a summary control unit of an MMC valve-based controller. Background technique [0002] In the flexible direct current transmission project, the summarization unit is responsible for controlling the balance between the voltage segments of the bridge wall sub-modules. It is one of the most important components suitable for the MMC valve-based controller VBC, and must have continuous and stable operation capabilities. The current test method for the summary unit is mainly to build a low-voltage, low-current flexible DC converter station dynamic model platform in the laboratory to simulate the working conditions of the converter station in the actual project. Through the overall test of the VBC, the summary unit Hardware reliability, control strategies, protection strategies, etc. are verified. [0003] However, VBC is a secondary device...
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IPC IPC(8): G05B23/02
Inventor 韩正一赵岩谢敏华
Owner STATE GRID CORP OF CHINA