A method for testing the kinetic energy of a generator

A test method and generator technology, applied in the direction of motor generator testing, etc., can solve problems such as deviation of generator function and inaccurate safety margin of power grid stability.

Active Publication Date: 2018-05-29
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to solve the technical problem of inaccurate power grid stability safety margin due to the deviation between the generator function and the actual one in the power grid simulation calculation process, and to provide a generator kinetic energy testing method to realize the on-site measurement of the generator kinetic energy. Accurate measurement meets the needs of power grid stability calculation and analysis. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows:

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  • A method for testing the kinetic energy of a generator
  • A method for testing the kinetic energy of a generator
  • A method for testing the kinetic energy of a generator

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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the examples of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0025] see figure 1 and figure 2 , in the present invention, the kinetic energy test device in the generator kinetic energy test involves the shafting rotor of the generator set, the speed measurement probe 1, the frequency voltage converter 2, the data acquisition module 3, the power transmitter 4, the current clamp 5, the current Converter 6, voltage converter 7, the shafting rotor of the generator set includes the high and medium pressure cylinder rotor 8, an...

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Abstract

The invention belongs to the technical field of power system grid stability analysis, and specifically relates to a method for testing the kinetic energy of a generator set, which mainly includes the following steps: (1) building a test device for the kinetic energy of the generator; (3) Set the speed of the generator to maintain 3000r / min operation control mode after shedding the load; (4) Start the kinetic energy test device and enter the input signal to automatically trigger the acquisition mode; (5) The outlet of the generator connected to the grid The switch turns off the load shedding, and the energy before the generator load shedding makes the rotor of the generator soar; (6) Calculate the kinetic energy of the generator according to the data information measured in the test device. The present invention automatically tests and analyzes the signal reflecting the kinetic energy of the generating set through the generator load shedding test, can obtain accurate kinetic energy of the generating set, improves the precision and accuracy of grid stability calculation, and the present invention can comprehensively and quickly complete the generating set The determination of kinetic energy meets the needs of power grid stability calculation and analysis.

Description

technical field [0001] The invention belongs to the technical field of power system grid stability analysis, and in particular relates to a test method for kinetic energy of a generator. Background technique [0002] For grid planning, calculation of grid operation mode, and grid stability analysis, it is necessary to model and test model parameters for generator sets, and the kinetic energy of generators is directly related to the accuracy of grid stability calculations. If the parameter in the simulation model deviates from the actual If the parameter is too large, the calculation result will threaten the safe operation of the power grid; if the parameter in the simulation model is too small, the safety margin of the power grid will be too large, resulting in waste of resources. Therefore, it is necessary to have a new testing system and method to obtain accurate kinetic energy of the generator. Contents of the invention [0003] The purpose of the present invention is ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34
Inventor 文立斌李俊贺星球李秋霞邓秋荃祁立君雷亭吴健旭刘光时卢万里
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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