An in-situ component protection system
A protection system and component technology, applied in the direction of electrical components, emergency protection circuit devices, etc., can solve the problem that analog data cannot be shared, and achieve high reliability
Active Publication Date: 2020-05-22
XUJI GRP +2
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[0003] The purpose of the present invention is to provide an in-situ component protection system, which is used to solve the problem that analog data cannot be shared after the in-situ protection system cancels the merging unit
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[0013] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0014] The invention provides an in-situ component protection system, which adopts a distributed multi-submachine structure, such as figure 1 As shown, each protection sub-machine includes two information collection devices, an auxiliary control device, a protection control device and a control signal outlet module, the auxiliary control device is connected to the two information collection devices by sampling, and the auxiliary control device is connected to the protection control device by communication. The auxiliary control device and the protection control device are driven and connected to the control signal outlet module.
[0015] Specifically, the auxiliary control device is provided with a first communication port for communicatin...
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An in-situ element protection system, comprising at least one protection sub-machine, the protection sub-machine comprising an auxiliary control apparatus and a protection control apparatus which are in communication connection. The auxiliary control apparatus is provided with a time signal receiving port, a first communication port and a second communication port, and the auxiliary control apparatus is connected to two information collection apparatuses. The auxiliary control apparatus receives and synchronises two data information paths of a protected device, and sends the two synchronised data information paths to an SV network. One data information path is sent to the protection control apparatus, and startup logic discrimination is performed according to the two synchronised data information paths. The protection control apparatus is used for receiving one data information path, and performing protection logic discrimination and startup logic discrimination. If the startup logic discrimination and the protection logic discrimination both act, a protection action signal is outputted. The protection system directly integrates a merging unit function into an original circuit protection apparatus, wherein the protection function is still based on two analogue data paths, and relay protection high reliability requirements are still met.
Description
technical field [0001] The invention relates to an in-situ component protection system, which belongs to the technical field of in-situ relay protection for power systems. Background technique [0002] Component protection includes transformer protection and busbar protection, which require extremely high reliability. Once an incorrect action occurs, it will cause a power outage in the entire station or damage to the transformer, resulting in huge losses. Hierarchical protection provides an idea to solve the difficulty of setting traditional backup protection, slow action speed and difficulty in guaranteeing protection performance when the power grid structure or operating conditions change unpredictably. In the in-situ protection system, the merging unit in the original smart substation is canceled, resulting in the loss of data collection sources for station area protection and wide area protection in the hierarchical protection system, which has a great impact on the curr...
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IPC IPC(8): H02H7/26
CPCH02H7/263
Inventor 李宝伟倪传坤金全仁邓茂军李旭窦辉王智勇马和科陈继瑞肖锋王志伟张哲原琳席颖颖马永念
Owner XUJI GRP