A short-circuit calculation and simulation method for a ship's AC-DC hybrid power system

A technology of AC/DC hybrid and power system, which is applied in the direction of calculation, measurement of electricity, and measurement of electrical variables, etc. It can solve the problems of complex design, inconvenient operation, and lack of model and algorithm of AC/DC hybrid system, and achieve the effect of simple steps

Active Publication Date: 2016-12-07
HARBIN ENG UNIV
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Problems solved by technology

However, at present, researchers usually use Matlab software with powerful mathematical calculation functions or land power system calculation software to build equipment models of ship power systems based on the characteristics of ship power systems, which is complex in design and inconvenient to operate.
There is no model and algorithm for AC and DC hybrid systems

Method used

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  • A short-circuit calculation and simulation method for a ship's AC-DC hybrid power system
  • A short-circuit calculation and simulation method for a ship's AC-DC hybrid power system
  • A short-circuit calculation and simulation method for a ship's AC-DC hybrid power system

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings:

[0036]The software of the invention is written on the platform of VC++6.0, and its main functions are: drawing the structure diagram of the power system, setting parameters for the components in the system, and finally realizing the short-circuit analysis and calculation of the arbitrarily constructed ship AC-DC hybrid power system, Realize the simulation function of the system. The whole software includes several modules such as visual graphic interface, data input and output, system topology analysis function, and short-circuit algorithm.

[0037] After the system is connected, set the parameters of each component in the system, and then click the short-circuit calculation function button with the mouse, select the line of the short-circuit fault point, call the response function of the short-circuit calculation, and the short-circuit calculation dialog box of the AC...

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Abstract

The invention relates to a short-circuit calculation and simulation method for a ship's AC-DC hybrid power system, which can perform short-circuit calculation and simulation on the ship's AC-DC hybrid power system. The invention includes detecting the endpoint coordinates of each component in the drawn network diagram, and assigning respective ID numbers to each component as the basis for judging the connection; according to the connection status of the components, the obtained connection relationship of each component is converted into digital information, and the information is displayed in the form The form is stored in the database; calculate the short-circuit current of the generator: calculate the short-circuit current of the battery: calculate the short-circuit current of the inductance element; calculate the short-circuit current of the DC motor; judge the position of the short-circuit point, and correct the current. The present invention does not have the model and algorithm of the AC-DC hybrid system, and the steps are more convenient.

Description

technical field [0001] The invention relates to a short-circuit calculation and simulation method for a ship's AC-DC hybrid power system, which can perform short-circuit calculation and simulation on a ship's AC-DC hybrid power system. Background technique [0002] In recent years, the AC-DC hybrid system has become the core content of the research on the ship's integrated power system. With the rapid development of power electronics technology, the performance of new power electronic devices has been continuously improved, and its control methods have also developed rapidly. The advantages are also becoming more and more prominent, especially in terms of power quality, efficiency, structure and so on. At present, the DC area power distribution technology has become the key research object of domestic and foreign experts, and it is also the main development direction of the ship's integrated power system in the future. Foreign ships have begun the test and application of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/02G06F19/00
Inventor 兰海孟杰曹融卢芳谭磊
Owner HARBIN ENG UNIV
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