Testing method and testing system for rotation speed detection property of DEH system of steam turbine
A technology of rotational speed detection and testing method, which is applied in the testing/calibration of speed/acceleration/impact measurement equipment, speed/acceleration/impact measurement, measurement devices, etc., which can solve the problems of low test accuracy and achieve accurate test results. Effect
Active Publication Date: 2017-12-26
阜阳华润电力有限公司
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[0006] The invention provides a test method and a test system for the speed detection performance of the steam turbine DEH system, which are used to solve the problem of low test accuracy of the speed detection performance of the DEH system in the prior art
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[0054]The embodiment of the present invention provides a test method and a test system for the detection performance of the rotational speed of a DEH system of a steam turbine, which are used to improve the test accuracy of the rotational speed detection performance of the DEH system.
[0055] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0056] The terms "first", "second", "third", "...
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The embodiment of the invention discloses a testing method and testing system for rotation speed detection property of a DEH system of a steam turbine and is used for solving a problem of low testing accuracy of the rotation speed detection property of the DEH system in the prior art. The method provided by the embodiment of the invention includes performing counting on teeth of a tooth plate of a simulation rotation speed table passing by a rotation speed detection unit during a rotation process by utilizing a rotation speed detection unit of the DEH system of the steam turbine, wherein the rotation speed detection unit is arranged on the simulation rotation speed table during the testing process; calculating the testing rotation speed of the simulation rotation speed table according to the counting result; judging whether the testing rotation speed matches an actual rotation speed sent by the simulation rotation speed table or not; if testing rotation speed matches the actual rotation speed, judging that the rotation speed detection property passes the test; if testing rotation speed does not match the actual rotation speed, judging that the rotation speed detection property does not pass the test.
Description
technical field [0001] The invention relates to the field of steam turbine DEH, in particular to a test method and a test system for the speed detection performance of a steam turbine DEH system. Background technique [0002] With the development of thermal power units with large capacity and high parameters, the degree of automation of thermal power units has also increased accordingly. As an important piece of equipment in a thermal power plant, the steam turbine rotates under the action of high-temperature and high-pressure steam, converts thermal energy into mechanical energy, and drives the rotor of the generator to turn, further converting mechanical energy into electrical energy. In order to maintain the frequency of the power grid, the digital electro-hydraulic regulation system DEH is usually used to automatically control the steam turbine, so that the speed of the steam turbine can be stabilized within a small range near the rated speed. [0003] The steam turbine...
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Login to View More IPC IPC(8): G01P21/02
CPCG01P21/02
Inventor 杨洋闫远超贺强
Owner 阜阳华润电力有限公司