Digital-analog integrated comprehensive sampling module and wave recording device with digital-analog integrated comprehensive sampling module

Abstract

The utility model discloses a digital-analog integrated comprehensive sampling module and a wave recording device with the digital-analog integrated comprehensive sampling module, the comprehensive sampling module is arranged in the wave recording device and comprises an analog signal acquisition mechanism, a digital signal acquisition mechanism and a switching value signal acquisition mechanism; and the analog signal acquisition mechanism, the digital signal acquisition mechanism and the switching value signal acquisition mechanism are electrically connected with a processing module in the wave recording device. The comprehensive sampling module provides a plurality of signal access interfaces, and provides a hardware basis for comprehensive analysis of a plurality of signals.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of intelligent substation test, concretely relates to a digital analog integrated comprehensive sampling module and wave recording device with it. BACKGROUND

[0002] At present, the popular degree of intelligent substation is higher, including the first generation intelligent substation and second generation intelligent station. Intelligent substation has achieved certain results in economic energy saving and environmental protection due to high system integration, reasonable structure layout. However, in actual application, many problems have also been exposed. Especially in the operation and maintenance of the secondary system of intelligent substation, the heavy maintenance workload and high maintenance cost greatly restrict the development of intelligent substation. At present, the following problems exist in the polarity test diagnosis of the secondary system of intelligent substation:

[0003] 1. The voltage and power collection form of intelligent substation is different from that of conventional substation, wherein the conventional substation adopts analog voltage and current signal access; the voltage and current collection form of intelligent substation is replaced by digital IEC61850 protocol optical fiber transmission from the original analog voltage and power form.

[0004] 2. The voltage and current signals of intelligent substation are collected by EPT and ECT, and after collection, the voltage and current signals are converted into SV signals through the merging unit device of intelligent substation, and the communication mode of all secondary devices in the secondary room is optical fiber transmission. For the polarity test of intelligent substation, the conventional multimeter or measuring device cannot be used for evaluation, and the 61850 protocol needs to be compatible to realize the polarity test function of intelligent substation.

[0005] Now there is a lack of a kind of hardware equipment, which realizes the access of different types of interfaces and comprehensive test. INVENTION CONTENT

[0006] The utility model aims at providing a kind of digital analog integrated comprehensive sampling module and wave recording device with it, provides hardware basis for the comprehensive test of intelligent substation, improves test efficiency.

[0007] To solve the above technical problems, the utility model provides a kind of technical scheme: a kind of digital analog integrated comprehensive sampling module, the comprehensive sampling module is set in wave recording device, including analog signal acquisition mechanism, digital signal acquisition mechanism, switching quantity signal acquisition mechanism;Analog signal acquisition mechanism, digital signal acquisition mechanism, switching quantity signal acquisition mechanism are electrically connected with the processing module in wave recording device.

[0008] According to the above scheme, the analog signal acquisition mechanism includes several DB25 interfaces.

[0009] According to the scheme, the digital signal acquisition mechanism comprises an SFP interface for acquiring SV and GOOSE messages.

[0010] According to the scheme, the digital signal acquisition mechanism comprises a plurality of 100M ports, a plurality of 1000M ports and a plurality of FT3 interfaces.

[0011] The recording wave device comprises a processing module, a power module, a storage module, an uplink communication module, an I / O alarm module and the comprehensive sampling module.

[0012] According to the scheme, the recording wave device comprises a jack backboard, and the input interface of the power module, the interface of the storage module, the interface of the uplink communication module and the interface of the comprehensive sampling module are fixed on the jack backboard.

[0013] According to the scheme, the power module is a 100V-250V wide-range AC / DC universal wide-range power plug-in.

[0014] According to the scheme, the uplink communication module comprises a plurality of isolated 1000Mbps electric Ethernet interfaces.

[0015] According to the scheme, the I / O alarm module comprises an IRIG-B RS485 interface and an optical fiber IRIG-B interface.

[0016] According to the scheme, the I / O alarm module comprises a plurality of pairs of empty node alarm output interfaces connected to the recording wave advanced relay.

[0017] The beneficial effects of the recording wave device are as follows: the analog signal acquisition mechanism, the digital signal acquisition mechanism and the switching value signal acquisition mechanism are provided, and a plurality of types of signal access interfaces are provided, thereby providing a preposed hardware basis for comprehensive analysis of a plurality of types of signals. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a backboard structure schematic view of the recording wave device of an embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present disclosure clearer, the technical scheme of the embodiments of the present disclosure will be described clearly and completely below in combination with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, rather than all the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by those of ordinary skill in the art without any creative effort belong to the scope of protection of the present disclosure.

[0020] The embodiment provides a digital-analog integrated comprehensive sampling module, which is arranged in a recording device and comprises an analog signal collecting mechanism, a digital signal collecting mechanism and a switching value signal collecting mechanism; the analog signal collecting mechanism, the digital signal collecting mechanism and the switching value signal collecting mechanism are electrically connected with a processing module in the recording device.

[0021] Further, the analog signal collecting mechanism comprises four DB25 interfaces (Female) and is used for connecting 64 conventional voltage and current signals and is matched with an external sensor case; the voltage and current signals are determined by the external sensor; the analog signal collecting mechanism is arranged at the A7 position in Figure 1 The processing module converts, conditions and converts the secondary voltage and current (from the voltage and current transformers) collected by the analog signal collecting mechanism into digital signals for computer calculation and analysis.

[0022] Further, the digital signal collecting mechanism comprises SFP interfaces for collecting SV and GOOSE messages; the digital signal collecting mechanism is arranged at the A4 and A6 positions in Figure 1 The processing module decodes the digital signals of the SV and GOOSE messages collected by the digital signal collecting mechanism, extracts switching value position signals contained in the digital signals and converts the switching value position signals into digital signals for computer calculation and analysis.

[0023] Further, the digital signal collecting mechanism can be optionally provided with four to eight 100M ports, one to four 1000M ports and eight FT3 interfaces.

[0024] Referring to Figure 1 The embodiment also provides a recording device, which comprises a processing module, a power module, a storage module (used for storing and reading and writing data), an uplink communication module, an I / O alarm module and the comprehensive sampling module described above; the storage module, the uplink communication module and the I / O alarm module are electrically connected with the processing module.

[0025] Further, the recording device comprises a jack backboard; the input interface of the power module, the interface of the storage module, the interface of the uplink communication module and the interface of the comprehensive sampling module are fixed on the jack backboard.

[0026] Further, the power module is a 100V-250V wide-range alternating current and direct current universal wide-range power plug-in, which is used for adapting to 110V and 220V two voltage specifications of a power supply system in a transformer substation and meets various power supply requirements on site.

[0027] Further, the uplink communication module comprises four isolated 1000Mbps electric Ethernet interfaces.

[0028] Further, the I / O alarm module comprises an IRIG-B RS485 interface and an optical fiber IRIG-B interface (two modes of RS485 electric B code time synchronization and optical B code time synchronization are additionally provided due to considering the category of time synchronization system in the transformer substation).

[0029] Further, the I / O alarm module comprises a plurality of pairs of empty node alarm output interfaces connected to the recording wave advanced relay.

[0030] The comprehensive sampling module provided by the embodiment provides a hardware technology for comprehensive analysis of power failure, and thus the recording wave device can analyze and diagnose faults of the smart transformer substation or the conventional transformer substation, ensures safe and stable operation of the transformer substation and the power grid, and reduces equipment damage and power grid accidents caused by power accidents.

[0031] The above merely describes the embodiments of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent flow conversion made by using the contents of the utility model specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A digital-to-analog integrated comprehensive sampling module, characterized in that, The comprehensive sampling module is arranged in the recording device, and includes an analog signal collecting mechanism, a digital signal collecting mechanism and a switching value signal collecting mechanism. The analog signal collecting mechanism includes a plurality of DB25 interfaces, the digital signal collecting mechanism includes SFP interfaces for collecting SV and GOOSE messages, and the digital signal collecting mechanism includes a plurality of 100M ports, a plurality of 1000M ports and a plurality of FT3 interfaces.

2. A logging device, characterized by The recording device includes a plug-in backboard, and the input interface of the power module, the interface of the storage module, the interface of the uplink communication module and the interface of the comprehensive sampling module are fixed on the plug-in backboard.

3. The logging device of claim 2, wherein, The power module is a 100V-250V wide-range AC / DC universal wide-range power plug-in.

4. The logging device of claim 2, wherein, The uplink communication module includes a plurality of isolated 1000Mbps electric Ethernet interfaces.

5. The logging device of claim 2, wherein, The I / O alarm module includes an IRIG-B RS485 interface and an optical fiber IRIG-B interface.

6. The logging device of claim 2, wherein, The I / O alarm module includes a plurality of pairs of empty node alarm output interfaces connected to the recording advanced relay.

7. The logging device of claim 6, wherein, ​

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