Super capacitor fault detection device

A supercapacitor failure and detection device technology, which is applied in the direction of measuring devices, measuring electricity, and measuring electrical variables, etc., can solve the problems that the detection signal is easily interfered and the accuracy of supercapacitors is low, so as to avoid false alarms and improve accuracy. Effect

Active Publication Date: 2016-01-27
BEIJING ETECHWIN ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the detection signal is susceptible to interference, the accuracy of fault detection for supercapacitors is low

Method used

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  • Super capacitor fault detection device
  • Super capacitor fault detection device

Examples

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Embodiment 1

[0031] figure 1 A schematic structural diagram of an embodiment of a supercapacitor fault detection device provided by the present invention. Such as figure 1 As shown, the supercapacitor fault detection device of the present embodiment may specifically include: an input filter circuit 11 for connecting the output interface of the supercapacitor detection signal and for performing supercapacitor fault diagnosis according to the historical output and current output of the input filter circuit 11 The processor circuit 12, the input filter circuit 11 is electrically connected with the processor circuit 12.

[0032] Specifically, the detection signal may specifically include an overvoltage detection signal, an overtemperature detection signal, and a polarity reverse detection signal. Assuming that the number of supercapacitors is 8, since each supercapacitor corresponds to one overvoltage detection signal, one overtemperature detection signal and one polarity reverse detection s...

Embodiment 2

[0037] figure 2 A schematic structural diagram of another embodiment of the supercapacitor fault detection device provided by the present invention. Such as figure 2 As shown, the supercapacitor fault detection device of this embodiment is in figure 1 On the basis of the supercapacitor fault detection device of the illustrated embodiment, it can also include: a communication interface circuit 24 for receiving the packaged data after the processor circuit 12 processes the supercapacitor detection signal, and the communication interface circuit 24 and the processor circuit 12 connection, also with the controller.

[0038]Specifically, after the processor circuit 12 generates detection results according to the current and previously received multi-channel detection signals, it can output the detection results such as alarm signals or normal state signals to the communication interface circuit 24, thereby sending them to the controller for control device for control processin...

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PUM

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Abstract

The invention provides a super capacitor fault detection device. The device comprises an input filter circuit for connecting the output interface of a super capacitor detection signal and a processor circuit for performing the super capacitor fault diagnosis according to the history output and current output of the input filter circuit, and the input filter circuit is electrically connected with the processor circuit. In the super capacitor fault detection device provided by the invention, the processor circuit detects the fault according to the present and prior received multipath detection signals of a plurality of super capacitors, the false alarm and missing alarm caused by the interference which is suffered by the detection signal are effectively avoided, and the accuracy of the super capacitor fault detection is improved.

Description

technical field [0001] The invention relates to the technical field of wind power, in particular to a supercapacitor fault detection device. Background technique [0002] In recent years, with the continuous increase in the total installed capacity of wind turbines, the industry's requirements for the performance and operational reliability of wind turbines have gradually increased. As one of the core subsystems of the wind turbine control system, the pitch system has two main functions: 1. During normal operation, it adjusts the pitch angle according to the change of wind speed to realize power regulation and control; 2. When wind power generation When the unit fails, quickly retract the propellers to the stop position to realize braking and ensure the safety of the wind turbine. [0003] For the pitch system, when the grid voltage is normal, the power to drive the pitch motor is rectified by the grid; when the grid voltage drops or is powered off, a backup power supply (s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 张智勇李庆江胡炜
Owner BEIJING ETECHWIN ELECTRIC
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