CN205209533U - Distributing type intelligent substation network monitored control system - Google Patents
Distributing type intelligent substation network monitored control system Download PDFInfo
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- CN205209533U CN205209533U CN201520901087.XU CN201520901087U CN205209533U CN 205209533 U CN205209533 U CN 205209533U CN 201520901087 U CN201520901087 U CN 201520901087U CN 205209533 U CN205209533 U CN 205209533U
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- 238000005070 sampling Methods 0.000 claims description 16
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Abstract
The utility model provides a distributing type intelligent substation network monitored control system, is including setting up environmental parameter acquisition sensor and transformer working parameter acquisition sensor in a plurality of transformer substations, data acquisition and processing module, on -site supervision terminal, on -the -spot execution control mechanism, industrial computer, display screen, wireless or optical fiber communication interface, remote management center, environmental parameter acquisition sensor and transformer working parameter acquisition sensor are connected with the data acquisition and processing module respectively, and profibus -DP and modbus field bus and the communication of industrial computer looks are passed through respectively to a plurality of data acquisition and processing modules, and the industrial computer passes through wireless communication interface or optical fiber communication interface and the looks communication of remote management center, through the environmental parameter of transformer substation and the transformer parameter and the data acquisition and processing module of gathering, to the intelligent data basis that provides accurate of controlling of transformer substation, for the atmospheric control of transformer substation's internal environment, the failure analysis of transformer provides data effectual very much.
Description
Technical field
The utility model relates to a kind of intelligent substation supervisory system, particularly a kind of intelligent substation supervisory system based on distributed network, and this supervisory system can be used to the monitoring working environment parameter of transformer station and the running parameter of transformer.
Background technology
Box-type substation comprises transformer, high-voltage switch gear, low voltage equipment and mutual connection thereof and utility appliance, by transformer, high-voltage switch gear, low voltage equipment and mutual connection thereof and utility appliance compact package, different with components and parts by main electrical scheme, centralized arrangement is in one or several airtight case shell in a certain way.
Along with the development of automatic technology, the running parameter of the working environment parameter (parameter etc. is put in temperature, humidity parameter, office) of remote real-time monitoring box-type substation and transformer (the oil temperature parameter of oil-filled transformer, pressure parameter, vibration parameters, etc.), to the environment improving box-type substation, the fault getting rid of transformer is of great benefit to.
Utility model content
The utility model relates to a kind of distributed intelligence substation network supervisory system, can the working environment parameter (parameter etc. is put in temperature, humidity parameter, office) of Real-Time Monitoring transformer station and the running parameter (the oil temperature parameter, pressure parameter, vibration parameters etc. of oil-filled transformer) of transformer, by each running parameter remote monitoring room of transformer station, for intelligent substation provides data parameters basis.
For achieving the above object, the utility model is achieved through the following technical solutions:
Distributed intelligence substation network supervisory system, it is characterized in that, comprise and be arranged at environmental parameter pick-up transducers in multiple transformer station and transformer running parameter pick-up transducers, digital sampling and processing, on-site supervision terminal, on-the-spotly perform control gear, industrial computer, display screen, wireless or optical communication interface, remote management center; Environmental parameter pick-up transducers is connected with digital sampling and processing respectively with transformer running parameter pick-up transducers, multiple digital sampling and processing communicates respectively by Profibus-DP and Modbus fieldbus and industrial computer, industrial computer is provided with wireless communication interface or optical communication interface, and industrial computer is communicated by wireless communication interface or optical communication interface and remote management center;
Described transformer station comprises the seal case of steel construction, is positioned at middle-high pressure electrification equipment, the transformer of casing; Sensor and Temperature Humidity Sensor are put in the environmental parameter pick-up transducers office of comprising, and the threephase cable ground wire place that sensor is installed on transformer station is put in described office, are used for gathering office in transformer station and put pulse number and pulse amplitude signal; Temperature Humidity Sensor is positioned on seal case inwall;
Transformer running parameter pick-up transducers involving vibrations sensor, oil temperature sensor, pressure transducer; Described vibration transducer is fixed on transformer oil box top by magnet adsorption, directly over the centre position of every phase winding; Described oil temperature sensor is used for measuring the oil temperature of oil-filled transformer, and it is positioned at the top of oil tank of transformer, gos deep into 50mm-80mm in oil; Described pressure transducer is positioned at transformer oil box top, is used for the oil-air pressure of measuring transformer; In transformer station, being provided with the blower fan regulating humiture, when ambient temperature and humidity exceeds normal range, carrying out automatic adjusting ambient temperature and humidity by controlling blower fan running.
Described digital sampling and processing comprises signal access unit, signal conversion unit, isolation amplifying unit and embedded micro computer, signal access unit successively with signal conversion unit, isolate amplifying unit and be connected with embedded micro computer order, embedded micro computer is provided with field-bus interface and communicates with industrial computer, and the gating signal of signal access unit, signal conversion unit and isolation amplifying unit is all from embedded micro computer.
Described signal access unit is made up of UIN1, UIN2, UIN3 tri-single choice 8 passage numeral control simulation electronic switches, and the signal of access is exported respectively by A1, A2, A3 tri-output terminals after gating;
Described signal conversion unit is made up of resistance, impedance transformer and electronic switch, exported respectively by B1, B2, B3 tri-output terminals, latch SC is provided with in unit, BX is the gating signal of latch SC, and the state of electronic switch S1 ~ S7 is determined by the state of latch SC output terminal D0, D1, D2;
Described isolation amplifying unit is made up of Capacitor apart assembly, amplifier, resistor network, and wherein Capacitor apart assembly is by electronic switch Kc
11, Kc
12, Kc
21, Kc
22, electric capacity C6, C7 composition, electronic switch Kc
11, Kc
12, Kc
21, Kc
22switch between input and output with fixing fast frequency, realize the isolation of sensor circuit and amplifying circuit;
Embedded micro computer comprises A/D converter, reference voltage source, dsp controller, temperature compensation sensor, network interface and storer, reference voltage source is connected with A/D converter, and A/D converter is connected with dsp controller with address bus AB1 by data bus DB1; Dsp controller one end is by data bus DB
2with address bus AB
2be connected with the network interface of band fieldbus function, one end is by data bus DB
3with address bus AB
3be connected with storer; Temperature compensation sensor is connected with dsp controller, for measuring thermocouple cold junction environment temperature and cold junction auto-compensation or surveying its elsewhere temperature; The output signal V of A/D converter reception amplifier
out.
Compared with prior art, the beneficial effects of the utility model are:
The utility model distributed intelligence substation network supervisory system, can the working environment parameter (parameter etc. is put in temperature, humidity parameter, office) of Real-Time Monitoring transformer station and the running parameter (the oil temperature parameter, pressure parameter, vibration parameters etc. of oil-filled transformer) of transformer, by each running parameter remote monitoring room of transformer station, for intelligent substation provides data parameters.By the substation parameter that gathers and transformer parameter and digital sampling and processing, data basis is accurately provided to the intelligentized control method of transformer station, for the Temperature and Humidity Control of transformer station's environment, the fault analysis of transformer provides effective especially data.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of distributed intelligence substation network supervisory system.
Fig. 2 is the structured flowchart of digital sampling and processing.
Fig. 3 is signal access unit schematic diagram.
Fig. 4 is signal conversion unit schematic diagram.
Fig. 5 is isolation amplifying unit schematic diagram.
Fig. 6 is embedded micro computer structural drawing.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
See Fig. 1, distributed intelligence substation network supervisory system, comprises and is arranged at environmental parameter pick-up transducers in multiple transformer station and transformer running parameter pick-up transducers, digital sampling and processing, on-site supervision terminal, on-the-spotly performs control gear, industrial computer, display screen, wireless or optical communication interface, remote management center; Environmental parameter pick-up transducers is connected with digital sampling and processing respectively with transformer running parameter pick-up transducers, multiple digital sampling and processing communicates respectively by Profibus-DP and Modbus fieldbus and industrial computer, industrial computer is provided with wireless communication interface or optical communication interface, and industrial computer is communicated by wireless communication interface or optical communication interface and remote management center.
Described transformer station comprises the seal case of steel construction, is positioned at middle-high pressure electrification equipment, the transformer of casing; Sensor and Temperature Humidity Sensor are put in the environmental parameter pick-up transducers office of comprising, and the threephase cable ground wire place that sensor is installed on transformer station is put in described office, are used for gathering office in transformer station and put pulse number and pulse amplitude signal; Temperature Humidity Sensor is positioned on seal case inwall.
Transformer running parameter pick-up transducers involving vibrations sensor, oil temperature sensor, pressure transducer; Described vibration transducer is fixed on transformer oil box top by magnet adsorption, directly over the centre position of every phase winding; Described oil temperature sensor is used for measuring the oil temperature of oil-filled transformer, and it is positioned at the top of oil tank of transformer, gos deep into 50mm-80mm in oil; Described pressure transducer is positioned at transformer oil box top, is used for the oil-air pressure of measuring transformer; In transformer station, being provided with the blower fan regulating humiture, when ambient temperature and humidity exceeds normal range, carrying out automatic adjusting ambient temperature and humidity by controlling blower fan running.
See Fig. 2, described digital sampling and processing comprises signal access unit, signal conversion unit, isolation amplifying unit and embedded micro computer, signal access unit successively with signal conversion unit, isolate amplifying unit and be connected with embedded micro computer order, embedded micro computer is provided with field-bus interface and communicates with industrial computer, and the gating signal of signal access unit, signal conversion unit and isolation amplifying unit is all from embedded micro computer.
See Fig. 3, signal access unit is made up of UIN1, UIN2, UIN3 (as CD4051 or CC4051) three list 8 passage numeral control simulation electronic switches, the signal of access is exported respectively by A1, A2, A3 tri-output terminals after gating, IN11, IN21 and IN31 are the 1st road signal input part, in like manner, IN18, IN28 and IN38 are the 8th road signal input part.QH is signal access unit gating signal, and low level is strobe state, and D2, D1 and D0 are input end selectivity signal, and input signal is that timesharing accesses in order.Its gating and the embedded micro computer controlling to believe from digital sampling and processing, all export to signal conversion unit by A1, A2 and A3 after the access of its signal gating.
See Fig. 4, signal conversion unit is made up of resistance R1 ~ R11, impedance transformer GS1 ~ GS6 and electronic switch S1 ~ S7, exported respectively by B1, B2, B3 tri-output terminals, latch SC is provided with in unit, BX is the gating signal of latch SC, and the state of electronic switch S1 ~ S7 is determined by the state of latch SC output terminal D0, D1, D2;
Various signals conversion (omnipotent conditioning) from signal access unit are become standard voltage signal by signal conversion unit.Signal conversion unit Received signal strength access unit output terminals A 1, A2 and A3 end signal, convert the output signal of output terminal B1, B2 and B3 of regulation to by the conditioning of signal conversion unit.Vout is additional reference voltage, and D2, D1 and D0 are the selectivity signals of the embedded micro computer from digital sampling and processing, with the conversion of control inputs signal.
Under the control of embedded micro computer, can by signal Direct Transform specified standard signals such as mV, mA, thermal resistance, thermocouple, during enforcement, this standard signal can be 5V;
See Fig. 5, Isolation Amplifier Module is by Capacitor apart assembly U
1, amplifier U
2, resistor network U
3composition, wherein Capacitor apart assembly U
1by electronic switch Kc
11, Kc
12, Kc
21, Kc
22, electric capacity C6, C7 composition, electronic switch Kc
11, Kc
12, Kc
21, Kc
22switch between input and output with fixing fast frequency, realize the isolation of sensor circuit and amplifying circuit; GL is capacitance switch formula isolation gating signal, and low level is gating, and D0 is capacitance switch control signal, amplifies selectivity signal all from embedded micro computer; This capacitance switch formula isolation, has highly reliable isolation characteristic, programmable amplifier, good linearity, and basis signal is selected range automatically, especially can ensure that faint data-signal amplifies undistorted.
During D0 low level, KC11 ~ KC22 is combined in the left side, and namely electric capacity C1 and C2 is stored in signal, and during D0 high level, signal passes to operational amplifier U
2; U
2and U
3form programmable amplifier, namely under the amplification selectivity signal of embedded micro computer, regulate the resistance of digital regulation resistance SD1, SD2 and SD3, realize the change of enlargement factor, namely change the range of signal, and then improve the precision of signal conversion; Isolation amplifying unit achieves the reliable isolation by conditioning unit and amplifying circuit, disturbs with ride gain amplifying circuit and front end, and simultaneously according to the size of letter, the gain of its amplifying circuit selected, namely selects range, be referred to as programmable-gain automatically.
See Fig. 6, embedded micro computer comprises A/D converter U4, reference voltage source, dsp controller U5 (as TMS320C54X), temperature compensation sensor DS18B20, network interface U6 and storer U7, reference voltage source is connected with A/D converter, and A/D converter is connected with dsp controller with address bus AB1 by data bus DB1; Dsp controller one end is by data bus DB
2with address bus AB
2be connected with the network interface of band fieldbus function, one end is by data bus DB
3with address bus AB
3be connected with storer; Temperature compensation sensor DS18B20 is connected with dsp controller, for measuring thermocouple cold junction environment temperature and cold junction auto-compensation or surveying its elsewhere temperature; The output signal V of A/D converter reception amplifier
out.In order to eliminate the impact that environment temperature produces thermocouple measuring accuracy, dsp controller U5 connects a DS18B20 one-wire bus formula digital temperature sensor; Network interface U6 can adopt Profibus-DP and Modbus fieldbus, realizes the communication with industrial computer; USB interface can be used for the renewal of program.
In embodiment, A/D converter adopts ± 18 high resolution A/D converters, as Maxim product MAX132MRC chip, and serial, low-power consumption, temperature range-55 DEG C ~+125 DEG C; Dsp controller is the core component of data acquisition process, adopts the TMS320C2407 of moral thirty instrument (TI), 16 bit DSPs; Storer is ROM (read-only memory); Network interface is exclusively used in Profibus-DP and Modbus fieldbus; Reference voltage source provides reference voltage for A/D converter, generally adopts the high precision of 5V or 2.5V, and galvanic current source; USB interface is that unloading arranges or exports necessary information.
Claims (3)
1. distributed intelligence substation network supervisory system, it is characterized in that, comprise and be arranged at environmental parameter pick-up transducers in multiple transformer station and transformer running parameter pick-up transducers, digital sampling and processing, on-site supervision terminal, on-the-spotly perform control gear, industrial computer, display screen, wireless or optical communication interface, remote management center; Environmental parameter pick-up transducers is connected with digital sampling and processing respectively with transformer running parameter pick-up transducers, multiple digital sampling and processing communicates respectively by Profibus-DP and Modbus fieldbus and industrial computer, industrial computer is provided with wireless communication interface or optical communication interface, and industrial computer is communicated by wireless communication interface or optical communication interface and remote management center;
Described transformer station comprises the seal case of steel construction, is positioned at middle-high pressure electrification equipment, the transformer of casing; Sensor and Temperature Humidity Sensor are put in the environmental parameter pick-up transducers office of comprising, and the threephase cable ground wire place that sensor is installed on transformer station is put in described office, are used for gathering office in transformer station and put pulse number and pulse amplitude signal; Temperature Humidity Sensor is positioned on seal case inwall;
Transformer running parameter pick-up transducers involving vibrations sensor, oil temperature sensor, pressure transducer; Described vibration transducer is fixed on transformer oil box top by magnet adsorption, directly over the centre position of every phase winding; Described oil temperature sensor is used for measuring the oil temperature of oil-filled transformer, and it is positioned at the top of oil tank of transformer, gos deep into 50mm-80mm in oil; Described pressure transducer is positioned at transformer oil box top, is used for the oil-air pressure of measuring transformer; In transformer station, being provided with the blower fan regulating humiture, when ambient temperature and humidity exceeds normal range, carrying out automatic adjusting ambient temperature and humidity by controlling blower fan running.
2. distributed intelligence substation network supervisory system according to claim 1, it is characterized in that, described digital sampling and processing comprises signal access unit, signal conversion unit, isolation amplifying unit and embedded micro computer, signal access unit successively with signal conversion unit, isolate amplifying unit and be connected with embedded micro computer order, embedded micro computer is provided with field-bus interface and communicates with industrial computer, and the gating signal of signal access unit, signal conversion unit and isolation amplifying unit is all from embedded micro computer.
3. distributed intelligence substation network supervisory system according to claim 2, it is characterized in that, described signal access unit is made up of UIN1, UIN2, UIN3 tri-single choice 8 passage numeral control simulation electronic switches, and the signal of access is exported respectively by A1, A2, A3 tri-output terminals after gating;
Described signal conversion unit is made up of resistance, impedance transformer and electronic switch, exported respectively by B1, B2, B3 tri-output terminals, latch SC is provided with in unit, BX is the gating signal of latch SC, and the state of electronic switch S1 ~ S7 is determined by the state of latch SC output terminal D0, D1, D2;
Described isolation amplifying unit is made up of Capacitor apart assembly, amplifier, resistor network, and wherein Capacitor apart assembly is by electronic switch Kc
11, Kc
12, Kc
21, Kc
22, electric capacity C6, C7 composition, electronic switch Kc
11, Kc
12, Kc
21, Kc
22switch between input and output with fixing fast frequency, realize the isolation of sensor circuit and amplifying circuit;
Embedded micro computer comprises A/D converter, reference voltage source, dsp controller, temperature compensation sensor, network interface and storer, reference voltage source is connected with A/D converter, and A/D converter is connected with dsp controller with address bus AB1 by data bus DB1; Dsp controller one end is by data bus DB
2with address bus AB
2be connected with the network interface of band fieldbus function, one end is by data bus DB
3with address bus AB
3be connected with storer; Temperature compensation sensor is connected with dsp controller, for measuring thermocouple cold junction environment temperature and cold junction auto-compensation or surveying its elsewhere temperature; The output signal V of A/D converter reception amplifier
out.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520901087.XU CN205209533U (en) | 2015-11-12 | 2015-11-12 | Distributing type intelligent substation network monitored control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520901087.XU CN205209533U (en) | 2015-11-12 | 2015-11-12 | Distributing type intelligent substation network monitored control system |
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|---|---|
| CN205209533U true CN205209533U (en) | 2016-05-04 |
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ID=55847243
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258734A (en) * | 2015-11-12 | 2016-01-20 | 国网辽宁省电力有限公司朝阳供电公司 | Distributed intelligent transformer substation network monitoring system |
| CN110906974A (en) * | 2019-10-29 | 2020-03-24 | 上海尚能电力工程设计有限公司 | Real-time monitoring device for operation condition of transformer substation |
| CN113810789A (en) * | 2021-08-10 | 2021-12-17 | 国网浙江省电力有限公司电力科学研究院 | Power equipment working condition multi-parameter distributed intelligent sensing node |
| CN114492636A (en) * | 2022-01-26 | 2022-05-13 | 上海交通大学 | Transformer winding state signal acquisition system |
-
2015
- 2015-11-12 CN CN201520901087.XU patent/CN205209533U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105258734A (en) * | 2015-11-12 | 2016-01-20 | 国网辽宁省电力有限公司朝阳供电公司 | Distributed intelligent transformer substation network monitoring system |
| CN110906974A (en) * | 2019-10-29 | 2020-03-24 | 上海尚能电力工程设计有限公司 | Real-time monitoring device for operation condition of transformer substation |
| CN113810789A (en) * | 2021-08-10 | 2021-12-17 | 国网浙江省电力有限公司电力科学研究院 | Power equipment working condition multi-parameter distributed intelligent sensing node |
| CN113810789B (en) * | 2021-08-10 | 2024-03-22 | 国网浙江省电力有限公司电力科学研究院 | Multi-parameter distributed intelligent sensing node for working condition of power equipment |
| CN114492636A (en) * | 2022-01-26 | 2022-05-13 | 上海交通大学 | Transformer winding state signal acquisition system |
| CN114492636B (en) * | 2022-01-26 | 2023-11-24 | 上海交通大学 | Transformer winding state signal acquisition system |
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