Test method for the ability of synchronous generators to adjust the bus voltage on the high voltage side of the main transformer
A technology for synchronizing generator and bus voltage, which is applied in the direction of motor generator testing, etc. It can solve the problems of lack of evaluation standards and test methods for the bus voltage regulation ability on the high voltage side of the main transformer, and achieve high economic and practical value.
Active Publication Date: 2018-01-05
CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH
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Problems solved by technology
[0004] In order to solve the problem that the synchronous generator lacks specific evaluation standards and testing methods for the ability of the synchronous generator to regulate the bus voltage on the high voltage side of the main transformer during the operation of the existing synchronous generator, the invention provides a synchronous generator capable of regulating the bus voltage on the high voltage side of the main transformer evaluation criteria and test methods
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[0024] In order to make the technical means, creative features, goals and effects of the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.
[0025] The gist of the present invention is that, through the analysis of the existing synchronous generator's evaluation standard and test method for the ability of the synchronous generator to regulate the bus voltage on the high-voltage side of the main transformer, it is found that the synchronous generator lacks specific evaluation standards and testing methods for the ability of the synchronous generator to regulate the voltage of the main transformer's high-voltage side bus. The problem of the test method is to solve the above problem by providing a method for measuring the ability of the synchronous generator to regulate the bus voltage on the high-voltage side of the transformer through the present invention.
[0026] see figure 1 , the method f...
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In order to solve the problem that the existing synchronous generator lacks specific evaluation standards and testing methods for the voltage regulation and control ability of the high-voltage side busbar of the main transformer, the present invention provides an evaluation standard and a testing method. The method includes the following steps: allowing the measured synchronous power generation When the generator is running under load conditions, adjust the active power of the synchronous generator to a predetermined value P; conduct a voltage step test on the synchronous generator under test, and calculate the voltage change value of the bus voltage on the high voltage side of the main converter of the synchronous generator under test before and after the test The ratio of △Us to the reactive power change value △Q; establish the relationship curve between the predetermined value P and the ratio. The present invention proposes a test method combining test and curve fitting. The test method proposed by the present invention effectively tests the ability of the synchronous generator to control the bus voltage on the high-voltage side of the main transformer. The voltage regulation capability of the high-voltage side busbar of the transformer has high economic and practical value.
Description
technical field [0001] The invention relates to the technical field related to power system operation and measurement, in particular, to a method for measuring the voltage capability of a synchronous generator to regulate the busbar voltage on the high-voltage side of a transformer, so as to solve the problem of the synchronous generator's influence on the main transformer during the operation of the existing synchronous generator. There is no specific evaluation standard and test method for the voltage regulation capability of the high-voltage side busbar. Background technique [0002] With the development of the economy, the scale of power grid interconnection continues to grow, and the speed of power supply construction is also accelerated. In particular, the large-scale operation of large-capacity generators and the increase of large-scale industrial and mining enterprises have a great impact on the voltage stability of the power grid. The reactive power control capabili...
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IPC IPC(8): G01R31/34
Inventor 戴申华盛明珺陈延云夏明圣陶煜胡月鹏胡智奇许子建
Owner CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH