CN203193385U - State monitoring system for transformer and GIS (Gas Insulated Switchgear) of transformer station - Google Patents

Abstract

The utility model discloses a state monitoring system for a transformer and a GIS of a transformer station, which comprises the transformer, multiple first intelligent electronic devices connected with the transformer, the GIS, multiple second intelligent electronic devices connected with the GIS, a switch respectively connected with the first and second intelligent electronic devices, and a host computer of the switch. Each first intelligent electronic device comprises a first sensor, a first filter, a first signal amplifier, a first A/D converter, a DSP (Digital Signal Processor), a first FPGA (Field Programmable Gate Array), a first power supply and a first RAM (Random Access Memory); and each second intelligent electronic device comprises a second sensor, a second filter, a second signal amplifier, a second A/D converter, an MCU (Microprogrammed Control Unit), a second FPGA, a second power supply and a second RAM. According to the utility model, acquired signals are processed, amplified and the like, thereby avoiding signal acquisition loss and inaccurate results caused by electromagnetic interference.

Description

A kind of condition monitoring system for transformer station's transformer and GIS

Technical field

The utility model relates to a kind of condition monitoring system, relates in particular to a kind of for transformer station's transformer and GIS(GAS INSULATED SWITCHGEAR, gas-insulating and fully-enclosed combined electrical apparatus) condition monitoring system.

Background technology

Transformer is relative two kinds of important equipment in the transformer station with GIS, and therefore their stable operation need monitor their running status in real time to the construction meaning of intelligent substation very much.Traditional monitoring implementation more complicated needs special checkout equipment to realize, and is with high costs, and because the High Voltage magnetic field environment that exists in the transformer station, be subjected to electromagnetic interference easily, thereby cause situations such as data acquisition signal disappearance, can not obtain testing result accurately.

Summary of the invention

The purpose of this utility model is to provide a kind of and is easy to realize, the condition monitoring system that is used for transformer station's transformer and GIS with low cost, can carry out processing such as filtering, amplification to gathering signal, and adopt non-interfering multi pass acquisition mode, thereby avoided the inaccurate situation of collection signal deletion, result that causes because of electromagnetic interference.

The technical scheme that realizes above-mentioned purpose is:

A kind of condition monitoring system for transformer station's transformer and GIS, it is characterized in that, comprise transformer, connect this transformer some first intelligent electronic devices (IED), GIS, connect some second intelligent electronic devices, switch and the host computer of this GIS, wherein:

Described switch connects each first intelligent electronic device and each second intelligent electronic device respectively;

Described host computer connects described switch;

Described each first intelligent electronic device includes first sensor, first filter, first signal amplifier, A/D(mould/number) transducer, DSP(Digital Signal Processing, digital signal processor), a FPGA(Field-Programmable Gate Array, field programmable gate array), first power supply and a RAM(random access memory, random asccess memory), wherein:

Described first sensor connects described transformer;

Described first sensor, first filter, first signal amplifier, first A/D converter, DSP and a FPGA are connected successively;

Described first power supply connects described DSP and a FPGA respectively;

A described RAM connects a described FPGA;

A described FPGA connects described switch;

Described each second intelligent electronic device includes second transducer, second filter, secondary signal amplifier, second A/D converter, MCU(microprocessor), the 2nd FPGA, second source and the 2nd RAM, wherein:

Described second transducer connects described GIS;

Described second transducer, second filter, secondary signal amplifier, second A/D converter, MCU and the 2nd FPGA are connected successively;

Described second source connects described MCU and described the 2nd FPGA respectively;

Described the 2nd RAM connects described the 2nd FPGA;

Described the 2nd FPGA connects described switch.

The beneficial effects of the utility model are: the utility model is realized the collection to GIS and each operational factor of transformer by the mode of multi pass acquisition, and passes through the mutual of switch, finally realizes data analysis and outcome evaluation by host computer.Simultaneously, the utility model carries out a series of preliminary treatment by filter, signal amplifier and A/D converter to gathering signal, has avoided the inaccurate situation of collection signal deletion, result that causes because of electromagnetic interference.And compared to the traditional monitoring device, the utility model is simple in structure, be easy to realize and with low cost to have very high practicality.

Description of drawings

Fig. 1 is the structural representation of the condition monitoring system for transformer station's transformer and GIS of the present utility model;

Fig. 2 is the structural representation of first intelligent electronic device in the utility model;

Fig. 3 is the structural representation of second intelligent electronic device in the utility model.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

See also Fig. 1 and Fig. 2, condition monitoring system for transformer station's transformer and GIS of the present utility model, comprise transformer 1, connect this transformer 1 some first intelligent electronic devices 2, GIS3, connect some second intelligent electronic devices 4, switch 5 and the host computer 6 of this GIS3, wherein:

Switch 5 connects each first intelligent electronic device 2 and each second intelligent electronic device 4 respectively;

Host computer 6 connects switch 5;

Each first intelligent electronic device 2 includes first sensor 21, first filter 22, first signal amplifier 23, first A/D converter 24, DSP25, a FPGA26, first power supply 27 and a RAM28,

First sensor 21 connects transformer 1;

First sensor 21, first filter 22, first signal amplifier 23, first A/D converter 24, DSP25 are connected successively with a FPGA26;

First power supply 27 connects DSP25 and a FPGA26 respectively;

The one RAM28 connects a described FPGA26;

The one FPGA26 connects switch 5;

Each second intelligent electronic device 4 includes second transducer 41, second filter 42, secondary signal amplifier 43, second A/D converter 44, MCU45, the 2nd FPGA46, second source 47 and the 2nd RAM48,

Second transducer 41 connects GIS3;

Second transducer 41, second filter 42, secondary signal amplifier 43, second A/D converter 44, MCU45 are connected successively with the 2nd FPGA46;

Second source 47 connects MCU45 and the 2nd FPGA46 respectively;

The 2nd RAM48 connects the 2nd FPGA46;

The 2nd FPGA46 connects switch 5.

The utility model principle: 1(GIS3 is similar with transformer) be example, each first intelligent electronic device 2 is gathered a parameter that is used for monitoring by the first sensor 21 in it, the analog signal of this parameter of output expression, this analog signal is successively through first filter 22, after first signal amplifier 23 and first A/D converter 24, change into digital signal and pass to DSP25(at GIS3, pass to MCU45), DSP25 classifies digital signal, contrast, looking into mistake waits after the preliminary treatment, issue a FPGA26, issue RAM28 storage and pass to host computer 6 by switch 5 by a FPGA26, realize deep data analysis and outcome evaluation, reach the purpose of monitoring.

In the present embodiment, the model that DSP25 selects for use is TMS320F2808; The model that MCU45 selects for use is AT91RM9200-QU-002; The equal SZKSY-ISO-A3-P1-O2 of model that first signal amplifier 23 and secondary signal amplifier 43 are selected for use; The model that the one FPGA26 and the 2nd FPGA46 select for use is EP1C6Q240C8.

Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.

Claims (1)

1. condition monitoring system that is used for transformer station's transformer and GIS, it is characterized in that, comprise transformer, connect this transformer some first intelligent electronic devices, GIS, connect some second intelligent electronic devices, switch and the host computer of this GIS, wherein:

Described switch connects each first intelligent electronic device and each second intelligent electronic device respectively;

Described host computer connects described switch;

Described each first intelligent electronic device includes first sensor, first filter, first signal amplifier, first A/D converter, DSP, a FPGA, first power supply and a RAM, wherein:

Described first sensor connects described transformer;

Described first sensor, first filter, first signal amplifier, first A/D converter, DSP and a FPGA are connected successively;

Described first power supply connects described DSP and a FPGA respectively;

A described RAM connects a described FPGA;

A described FPGA connects described switch;

Described each second intelligent electronic device includes second transducer, second filter, secondary signal amplifier, second A/D converter, MCU, the 2nd FPGA, second source and the 2nd RAM, wherein:

Described second transducer connects described GIS;

Described second transducer, second filter, secondary signal amplifier, second A/D converter, MCU and the 2nd FPGA are connected successively;

Described second source connects described MCU and described the 2nd FPGA respectively;

Described the 2nd RAM connects described the 2nd FPGA;

Described the 2nd FPGA connects described switch.

Images