A main transformer cooler switching method and system
A technology of main transformer cooler and cooler, which is applied in the direction of transformer/inductor cooling, transformer/inductor components, electric controllers, etc. It can solve problems such as energy waste, cooler exceeding, main transformer cooling demand, etc., to achieve Avoid the effects of poor flexibility, precise adjustment of on/off control
Active Publication Date: 2021-12-28
SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD +1
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Problems solved by technology
At present, when the cooler fails, the priority will not be automatically switched. The original logic does not distinguish whether the cooler with the (leakage / motor) failure is in use or not, and will start the backup cooler, which may cause the temperature to not reach the start when the auxiliary cooler is put in. , the auxiliary cooler (leakage / motor) fails and the standby cooler is activated, so the coolers put in exceed the actual cooling demand of the main transformer, resulting in a large energy waste
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[0049] In order to make the objects, technical solutions and advantages of the present invention more apparent, exemplary embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only some embodiments of the present invention, rather than all embodiments of the present invention, and it should be understood that the present invention is not limited by the exemplary embodiments described here. Based on the embodiments of the present invention described in the present invention, all other embodiments obtained by those skilled in the art without creative effort shall fall within the protection scope of the present invention.
[0050] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the present invention may be practiced...
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The invention provides a method for switching coolers of a main transformer, which includes the following steps: the main control module sets the cooler with the operating state value of 1 as the main cooler, and sets the cooler with the operating state value of 2 as the auxiliary cooler , set the cooler whose operating state value is 3 as the standby cooler; the main control module judges whether to start the main cooler according to the first state information and the first judgment method; collects the second state information, and the main control module judges whether to start the main cooler according to the first state information; Two state information and the second judging method judge whether to start the auxiliary cooler; collect the third state information, and the main control module judges whether to start the standby cooler according to the third state information and the third judging method; for multiple coolers The operating state value is added by one to realize priority switching, and the new main cooler, new auxiliary cooler and new standby cooler are reset according to the new operating state value, so as to realize the priority adjustment of the cooler.
Description
technical field [0001] The invention relates to the technical field of cooling control of main transformers, in particular to a method and system for switching coolers of main transformers. Background technique [0002] The active power loss of the main transformer of the pumped storage power plant during operation will be converted into heat energy, which will increase the temperature of the transformer winding and the insulating oil in it. The function of the main transformer cooler is to reduce the temperature of the insulating oil in the transformer, thereby reducing the temperature of the transformer winding and iron core, so that the main transformer can operate normally. Therefore, whether the cooler of the main transformer operates safely and reliably has a great influence on the normal operation of the main transformer. At present, when the cooler fails, the priority will not be automatically switched. The original logic does not distinguish whether the cooler with...
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IPC IPC(8): G05B11/42H01F27/08H01F27/40
CPCG05B11/42H01F27/08H01F27/402H01F2027/406
Inventor 高彦明高雄
Owner SOUTHERN POWER GRID PEAK LOAD & FREQUENCY REGULATION GENERATING CO LTD