Simulation model and simulation method of power and voltage characteristics of power supply in DC distribution network with converter
A technology of DC distribution network and power supply, which is applied in the direction of DC network circuit devices, instruments, electrical components, etc., to reduce the amount of calculation and improve the analysis speed
Active Publication Date: 2018-12-07
SHANGHAI JIAO TONG UNIV
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[0004] In the process of analyzing and researching the DC distribution network, the converter models will be common and exist in large numbers. If the design scheme of the actual converter is followed, there will be a large number of power electronic switch models in the distribution network. Therefore, for For a large-scale distribution network model, the amount of calculation required for its simulation analysis will be a huge burden for the existing computer calculation speed, and it is also impossible to achieve
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[0050] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0051] The power simulation model of the DC power distribution network including the converter of the present invention is composed of an electrical module and a control module.
[0052] The package diagram of the model based on Simulink is as follows figure 1 . The power supply simulation model of the DC distribution network with converters has two interfaces, the upper interface is used as the signal interface of the input power value variation, and the lower interface is the electrical interface, which is directly connected to the DC distribution network.
[0053] The simulation model of the power supply voltage characteristics of the DC distribution network containing the converter of the present invention, such as figure 2 As shown, it includes an electrical module and a control module, the electrical module includes a controllable voltage source 1, a...
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The invention provides a power supply power voltage characteristic simulation model and simulation method for a DC power distribution network converter. A power supply model achieves simulation on the voltage power characteristic of an actual power supply through a control algorithm. Compared with the power supply model built by power electronic switching devices, the simulation model is improved in that the calculated quantity during simulation analysis of computer simulation analysis software is smaller, so that simulation analysis of a relatively large-scale and complicated DC power distribution system is achieved on the basis of the current computer operational capability.
Description
technical field [0001] The invention relates to the technical field of DC power distribution, in particular to a simulation model and simulation method for the power voltage characteristics of a DC power distribution network including a converter. The model ignores the switching characteristics of the power electronic components in the actual converter and can greatly Reduce the amount of computation in distribution network analysis and research. Background technique [0002] The existing power supply needs to be connected to the DC power distribution network through a converter. The converter technology has always been a key technology in the construction of the distribution network, and various converter devices are in the process of rapid upgrading. Through literature search, there are specifically a modular megawatt-level medium-voltage intermediate-frequency three-level full-bridge DC converter with a patent authorization announcement number of CN103441677B, and a multi...
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IPC IPC(8): H02J1/00G06F17/50
CPCG06F30/367H02J1/00
Inventor 解大张延迟李国杰朱卉赵祖熠
Owner SHANGHAI JIAO TONG UNIV