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A test method for three-port mmc energy control device

A technology of energy control and testing method, applied in general control systems, program control, control/regulation systems, etc., can solve problems such as disadvantage, lack of full capacity and systematicness, and achieve the goal of improving the degree of refinement and ensuring application reliability. Effect

Active Publication Date: 2021-08-31
FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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Problems solved by technology

[0004] In order to solve the problem that the current three-port energy control device lacks a full-capacity and systematic functional test method, which is not conducive to its effective function, the present invention proposes a test method for the three-port MMC energy control device, which is beneficial to ensure the three-port The application reliability of the port energy control device improves the refinement of power grid regulation

Method used

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  • A test method for three-port mmc energy control device
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  • A test method for three-port mmc energy control device

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Embodiment 1

[0052] Such as figure 1 The structure diagram of the three-port MMC energy control device shown, the three-port energy control device includes: a coordination controller, a three-port MMC structure, a port local controller unit, a DC bus, a switch structure, a transformer structure and an AC bus, see figure 1 , the three-port MMC structure includes three-port MMC converters, which are the first-port MMC converter (1#MMC), the second-port MMC converter (2#MMC) and the third MMC converter (3 #MMC), the port local controller unit includes three local controllers, respectively the first local controller, the second local controller and the third local controller, and the switch structure includes three switches, respectively as figure 1 As shown in K1, K2 and K3 in the figure, the transformer structure includes three transformers, as shown in figure 1 As shown in T1, T2 and T3 in , one end of the i-th port MMC converter is connected to the DC bus through the i-th switch, and the...

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Abstract

The invention proposes a test method for a three-port MMC energy control device, which relates to the technical field of power electronic control technology and system testing, and solves the problem that the current three-port energy control device lacks a full-capacity and systematic functional test method. The test method matches the full-capacity test mode, the power flow control test mode, the power quality management test mode and the abnormal voltage test mode of the three-port MMC energy control device, including a full-capacity test method and a systematic functional test method. The functional test methods include: power flow control test method, power quality control test method and voltage anomaly test method, which is conducive to ensuring the application reliability of the three-port energy control device and improving the refinement of power grid regulation.

Description

technical field [0001] The invention relates to the technical field of power electronic control technology and system testing, and more specifically, to a testing method for a three-port MMC energy control device. Background technique [0002] In recent years, new forms of energy control devices such as DC distribution networks, energy routers, and flexible soft switches based on the MMC (modular multilevel converter) structure have received extensive attention and development. The new forms of energy control devices have Active / reactive power independent control, high power quality, flexible adjustment methods, etc., can realize flexible dispatching of the power grid system in specific applications, and improve the refinement and flexibility of power grid regulation. [0003] On February 18, 2020, the Chinese patent with the publication number CN110808604A aimed at the development trend of the future AC-DC distribution network, disclosed a three-port energy control device b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/0213G05B2219/24065
Inventor 范心明蒋维李新刘益军孙广慧王俊波李国伟唐琪曾庆辉章涛宋安琪董镝黎小龙彭元泉赵云云区汝轩王宁刘剑琦王皆庆
Owner FOSHAN POWER SUPPLY BUREAU GUANGDONG POWER GRID
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