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New breaker heating amount calculating method

A calculation method and circuit breaker technology, applied in calculation, neural learning methods, instruments, etc., can solve the problems of not considering the historical data of calorific value calculation and low accuracy of calorific value

Inactive Publication Date: 2015-05-27
STATE GRID CORP OF CHINA +8
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the patent does not consider the historical data of calorific value calculation, which makes the calorific value calculated by the current measurement less accurate

Method used

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Embodiment Construction

[0014] The present invention will be further explained below in conjunction with the accompanying drawings and specific embodiments.

[0015] It should be declared that the contents and specific implementation methods of the present invention are intended to prove the practical application of the technical solutions provided by the present invention, and should not be construed as limiting the protection scope of the present invention. Those skilled in the art may make various modifications, equivalent replacements, or improvements under the inspiration of the spirit and principles of the present invention. But these changes or modifications are all within the protection scope of the pending application.

[0016] figure 1 It is a structural schematic diagram of the prediction model of the present invention. The method of the present invention comprises the following steps:

[0017] Step A, analyze and determine the factors that affect the heating value of the opening and cl...

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Abstract

The invention discloses a new breaker heating amount calculating method. The new breaker heating amount calculating method comprises the following steps: performing modeling prediction by using an RBF neural network, training and establishing a breaker heating amount prediction model by using a working environment condition of a breaker, an equipment state of the breaker, a relay protection configuration and the like as input variables of the model and using a heating amount of a divide-shut brake coil of the breaker as an output variable of the model; and optimizing an input variable of the RBF neural network by adopting a particle swarm optimization algorithm. According to the new breaker heating amount calculating method, an input structure of a manual neural network is simplified, and the learning speed and precision of the RBF neural network are improved.

Description

technical field [0001] The invention belongs to the technical field of circuit breaker protection, and in particular relates to a new method for calculating the calorific value of a circuit breaker. Background technique [0002] Accidents of tripping and closing coils burning out often occur during power system operation. As we all know, tripping and closing coils are designed according to short-time energization. The burning of the tripping and closing coils is mainly due to the fact that the current of the tripping and closing coils cannot be cut off normally, which leads to the long-term energization of the tripping and closing coils. As an important electrical component in the power system, when the power system fails, the circuit breaker accepts the trip command of the relay protection and the automatic device, and requires it to perform the trip action at a millisecond speed to avoid the spread and expansion of the accident. Therefore, it is required that the circuit...

Claims

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Application Information

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IPC IPC(8): G06Q50/06G06N3/08
Inventor 张晓光李劲松王华学吴钊贤周志兵谈俊裴一舟
Owner STATE GRID CORP OF CHINA