CN103744417A - Multifunctional integrated measurement and control apparatus and system for intelligent transformer station - Google Patents

Multifunctional integrated measurement and control apparatus and system for intelligent transformer station Download PDF

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Publication number
CN103744417A
CN103744417A CN201310726360.5A CN201310726360A CN103744417A CN 103744417 A CN103744417 A CN 103744417A CN 201310726360 A CN201310726360 A CN 201310726360A CN 103744417 A CN103744417 A CN 103744417A
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CN
China
Prior art keywords
circuit
module
multifunctional
intelligent
observing
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CN201310726360.5A
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Chinese (zh)
Inventor
徐成斌
周俊峰
江浩
胡志锋
王莎
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长园深瑞继保自动化有限公司
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Priority to CN201310726360.5A priority Critical patent/CN103744417A/en
Publication of CN103744417A publication Critical patent/CN103744417A/en

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/7838
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/16Electric power substations
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses

Abstract

The invention discloses a multifunctional integrated measurement and control apparatus and system for an intelligent transformer station, for solving the technical problem of improving the integration of secondary equipment of the transformer station. The apparatus disclosed by the invention is provided with a measurement and control function circuit, a multifunctional circuit for dynamic and transient data monitoring and network message analysis and electric energy quality analysis, a process layer function circuit, and an intelligent manager for data exchange. The system disclosed by the invention is provided with a measurement and control function module, a synchronization phasor measuring module, an electric energy quality function module, a transient disturbance monitoring module, a liquid crystal panel management module, a process layer function module and an intelligent manager module. Compared to the prior art, the apparatus and system provided by the invention have the following advantages: the circuits work in cooperation with each other under the control of the intelligent manager, the land occupation area of secondary equipment is reduced, the integration of the secondary equipment of a transformer station is improved, the maintenance management efficiency is enhanced, unified data is provided for an electric power automation system, and stable state, dynamic and transient data monitoring, network message analysis and electric energy quality analysis functions are integrated.

Description

Multifunctional all measure and control device and the system of intelligent substation
Technical field
The present invention relates to measure and control device and the system of a kind of smart electric grid system equipment and system, particularly a kind of intelligent substation.
Background technology
Intelligent grid is to take extra-high voltage grid to be that the sturdy power grid of key rack, each electric pressure electric network coordination development is basis, by modern advanced sensing measurement technology, the communication technology, infotech, computer technology and control technology and the novel power grid of formation integrated with physics grid height.It take fully meet user to the demand of electric power and optimize allocation of resources, guarantee electric power supply security, reliability and economy, to meet environment constraint, guarantee the quality of power supply, adapt to electricity market development etc. be object, realizes electric power supply and the value-added service reliable, economical, clean, interactive to user.
Intelligent substation is the important component part of intelligent grid; adopt the smart machine of advanced, reliable, integrated, low-carbon (LC), environmental protection; with the information digitalization of entirely standing, communications platform networking, information sharing, be standardized as basic demand; automatically complete the basic functions such as information acquisition, measurement, control, protection, metering and monitoring, and can support as required the transformer station of the Premium Features such as the real-time control automatically of electrical network, intelligence adjusting, on-line analysis decision-making, collaborative interaction.
The service object of the intelligent substation measure and control device of prior art is single interval, function singleness, and measure and control device engineering maintenance workload is large.In the situation that protect surveying integrated apparatus and having dispute, maintain the independence of measure and control device, comply with intelligent grid developing direction, measure and control device has been become to a kind of trend to the mode of multi-compartment and multifunction development.In addition, development along with electronic information technology and networking, as independent, exist the integrated multiple application function of measure and control device to become possibility, as integrated tri-state data monitoring, integrated record ripple and network message analysis, power quality analysis etc., to greatly alleviate measure and control device engineering maintenance workload, improve maintenance management efficiency.
Summary of the invention
The multifunctional all measure and control device and the system that the object of this invention is to provide a kind of intelligent substation, the technical matters that solve is to improve the integrated level of substation secondary device, reduces measure and control device engineering maintenance workload.
The present invention is by the following technical solutions: a kind of multifunctional all measure and control device of intelligent substation, be provided with observing and controlling functional circuit, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, process layer functional circuit and for the intelligent supervisor of exchanges data; Described intelligent supervisor connects observing and controlling functional circuit, dynamically, multifunctional circuit and the process layer functional circuit of Temporal Data monitoring and network message analysis and power quality analysis;
Described process layer functional circuit is processed the AC sampling of routine transformer and is had the digital sample of electronic mutual inductor, carries out the input and output of conventional Control, carries out the digitizing input and output of the transformer substation case GOOSE based on towards general object;
Described intelligent supervisor be responsible for to time, with observing and controlling functional circuit, dynamically, Temporal Data monitoring and the multifunctional circuit of network message analysis and power quality analysis and the communication between process layer functional circuit;
Described observing and controlling functional circuit is by obtaining original sampling data on intelligent supervisor and calculating;
Described dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis be used for the work of dynamic data, transient state recorder data, power quality data, network message analysis, be transferred on user computer, by intelligent supervisor, be transferred to liquid crystal panel management circuit provides data to show simultaneously again.
The intelligent supervisor of apparatus of the present invention is connected with liquid crystal panel management circuit;
Described liquid crystal panel management circuit is responsible for finishing man-machine interaction, and user command is issued to each circuit by intelligent supervisor; User assigns steering order by button, by intelligent supervisor, is handed down to observing and controlling functional circuit, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, and process layer functional circuit;
Described observing and controlling functional circuit is by obtaining original sampling data on intelligent supervisor and calculating, then result of calculation is transferred to liquid crystal panel management circuit for user;
Described dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis by the dynamic data completing, transient state recorder data, power quality data, network message analysis is transferred to liquid crystal panel management circuit by intelligent supervisor provides data to show.
The intelligent supervisor of apparatus of the present invention adopts high speed field programmable gate array; In described intelligent supervisor, be provided with intelligent management system, the functional circuit that described intelligent management system is realized is: management bus circuit, data bus circuit, to time bus circuit.
The process layer functional circuit of apparatus of the present invention is provided with a CPU, and a CPU is connected with respectively the circuit that internal memory, flash memory, clock circuit, BOOTROM socket and simulating signal are converted to digital signal; The one CPU connects debugging serial interface through ethernet PHY network interface card; The one CPU is by primary scene programmable gate array FPGA connecting media access control layer interface, and a described FPGA inputs while also connecting light serial ports school, and a FPGA is connected with FPGA configuring chip; Process layer functional circuit bus, pulse per second (PPS) delivery outlet when the input and output IO bus of a FPGA and board, data bus, school are connected.
The liquid crystal panel management circuit of apparatus of the present invention is provided with the 2nd CPU, the 2nd CPU is connected with respectively synchronous DRAM, flash memory, clock circuit, Thin Film Transistor (TFT), button and network controller, network controller connects 5 mouthfuls of exchange chips, described 5 mouthfuls of exchange chips connect respectively debugging serial interface, network interface 1, network interface 2 and network interface 3, and described liquid crystal panel management circuit is connected with the bus board of board through network interface 1, network interface 2 and network interface 3.
The observing and controlling functional circuit of apparatus of the present invention is provided with the 3rd CPU, and the 3rd CPU is connected with respectively internal memory, flash memory, clock circuit and BOOTROM socket; The 3rd CPU connects light/electrical interface and debugging interface or electrical interface through ethernet PHY network interface card, the 3rd CPU connect be also connected with serial ports, when 16V554 go here and there and change a serial ports, the two-way global position system GPS school of mouth connection; The 3rd CPU bus when the IO bus of the 3rd FPGA and board, school is connected; The 3rd CPU also connects respectively external light/electrical interface or to grace data bus, external light/electrical interface through media access control layer, the ethernet PHY network interface card of board.
Dynamic, the Temporal Data of apparatus of the present invention monitored and the multifunctional circuit of network message analysis and power quality analysis is provided with the 4th CPU, and the 4th CPU is connected with internal memory, flash memory, clock circuit and BOOTROM socket; The 4th CPU connects light/electrical interface and debugging interface or electrical interface through ethernet PHY network interface card, and the 4th CPU connects serial ports, when 16V554 go here and there and change a serial ports, the two-way GPS school of mouth connection, or with the 2nd, 3 network interfaces carry out IEEE1588 network to time; The 4th CPU bus, FPGA configuring chip when the input and output IO bus of the 4th FPGA and board, data bus, school are connected, and the 4th CPU connects respectively external light/electrical interface through media access control layer (MAC), the ethernet PHY network interface card of board.
The observing and controlling functional circuit of apparatus of the present invention, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, process layer functional circuit and liquid crystal panel management circuit independently arrange with the structure of board respectively.
The multifunctional all measure and control device of intelligent substation of the present invention is provided with cabinet, described cabinet adopts half storey 4U subrack structure, process layer functional circuit, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, observing and controlling functional circuit is plugged on the slot of cabinet; Liquid crystal panel management circuit is arranged on the front panel of cabinet, intelligent supervisor is arranged on the backboard of cabinet, on the slot of cabinet, be also plugged with power circuit, described power circuit is respectively process layer functional circuit, multifunctional circuit, observing and controlling functional circuit, liquid crystal panel management circuit and intelligent supervisor power supply.
A kind of multifunctional all TT&C system of intelligent substation, be provided with the observing and controlling functional module being arranged in observing and controlling functional circuit, be arranged on dynamically, synchronous phasor measurement module, quality of power supply functional module, transient state disturbance monitoring module in the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, be arranged on the liquid crystal panel administration module in liquid crystal panel management circuit, be arranged on process layer functional module and intelligent supervisor module in process layer management circuit; Described observing and controlling functional module, synchronous phasor measurement module, quality of power supply functional module, transient state disturbance monitoring module, liquid crystal panel administration module and process layer functional module realize intercommunication mutually by intelligent supervisor module;
Described observing and controlling functional module receives after the original sampling data that intelligent supervisor module transmits, and measures and the processing of control aspect;
The original sampling data sending in described synchronous phasor measurement module receiving course layer function module, utilize gps satellite synchronous clock to realize the synchro measure to electrical network busbar voltage and line current phasor, by communication system, be sent in the control center of electrical network or protection, controller, for realizing the whole network operational monitoring control or feasible region protection and controlling;
The original sampling data sending on described quality of power supply functional module quality of power supply functional module receiving course layer function circuit, carries out the calculating of the quality of power supply and result is transferred to liquid crystal panel administration module by intelligent supervisor module showing in real time;
The original sampling data sending on described transient state disturbance monitoring module transient state disturbance monitoring module receiving course layer function circuit, carries out the calculating of transient state disturbance monitoring and result is transferred to liquid crystal panel administration module by intelligent supervisor module showing in real time;
The data that described liquid crystal panel administration module reception intelligent supervisor module is sent also show in real time by liquid crystal display;
Described process layer functional module is obtained voltage, electric current crude sampling value from transformer substation voltage, current transformer, the sampled value that obtains intake from the switchgear of transformer station, will send these original sampling datas to intelligent supervisor module after the sampled value of the voltage obtaining, electric current and intake;
Described intelligent supervisor module is transferred to respectively observing and controlling functional module, synchronous phasor measurement functional module, quality of power supply functional module and transient state disturbance monitoring functional module by these raw data after receiving the original sampling data that process layer functional module sends; The result that observing and controlling functional module, synchronous phasor measurement functional module, quality of power supply functional module and transient state disturbance monitoring functional module are sent is transferred to liquid crystal panel administration module and shows in real time.
The present invention compared with prior art, be provided with the intelligent supervisor that each module data exchange can be provided, realize observing and controlling function, dynamically, Temporal Data monitoring and network message analysis and power quality analysis multi-functional, process layer function, liquid crystal panel management function, the collaborative work under the control of intelligent supervisor of each circuit completes various functions, reduced the floor area of secondary device, improved the integrated level of substation secondary device, simplified the workload of maintenance management, improve maintenance management efficiency, can be power automatic system simultaneously unified stable state is provided, dynamically, transient state, process layer message, the data of the quality of power supply, integrated stable state, dynamically, Temporal Data monitoring, integrated network message analysis and power quality analysis function.
Accompanying drawing explanation
Fig. 1 is process layer functional circuit structural drawing of the present invention.
Fig. 2 is liquid crystal panel management circuit structure figure of the present invention.
Fig. 3 is observing and controlling functional circuit structural drawing of the present invention.
Fig. 4 is multifunctional circuit structural drawing of the present invention.
Fig. 5 is system construction drawing of the present invention.
Fig. 6 is that process layer functional circuit of the present invention is write out falsely into schematic diagram.
Fig. 7 is that process layer functional circuit of the present invention is write out falsely out schematic diagram.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further detail.The multifunctional all measure and control device (device) of intelligent substation of the present invention, be provided with observing and controlling functional circuit, dynamically, the multifunctional circuit (multifunctional circuit) of Temporal Data monitoring and network message analysis and power quality analysis, process layer functional circuit, liquid crystal panel management circuit, for the intelligent supervisor of exchanges data.Intelligent supervisor connects observing and controlling functional circuit, multifunctional circuit, process layer functional circuit and liquid crystal panel management circuit.Observing and controlling functional circuit, multifunctional circuit, process layer functional circuit and liquid crystal panel management circuit independently arrange with the structure of board respectively, with the security that guarantees that the function of each circuit realizes.
As shown in Figure 1, process layer functional circuit is provided with a CPU, adopts the CPU of Freescale semiconductor (China) company limited, and model is MPC8247, and a CPU is connected with the memory chip of 4 16M * 16, forms the memory field of 128M; The one CPU is connected with the flash memory FLASH(Flash EEPROM Memory of two 8M): a slice, for deposit operation system and application system (C dish), is taked 16 bit manipulations, and its Memory control start address is 0x30000000; Another sheet, for put file (D dish), is also to take 16 bit manipulations, and its Memory control start address is 0x16000000; The one CPU is connected with clock circuit and BOOTROM socket (non-disk startup ROM interface); The one CPU is connected with the circuit AD976A chip that cope and drag pattern analog signal is converted to digital signal, supports 12 road AD samplings, gathers transformer substation voltage and current data; The one CPU connects debugging serial interface through ethernet PHY network interface card; The one CPU connects 8 media access control layers (MAC) interface by primary scene programmable gate array FPGA, support 8 pairs of light mouths (8 receive 8), the one FPGA inputs while also connecting two-way light serial ports school, support light B code or light pulse per second (PPS), the one FPGA is connected with FPGA configuring chip, and FPGA model is the EP3C16F484C8N type fpga chip of U.S. altera corp.Process layer functional circuit bus, pulse per second (PPS) delivery outlet when the input and output IO bus of a FPGA and board, data bus, school are connected.
Process layer functional circuit is converted to by simulating signal transformer station's electric parameters that the circuit (A/D chip) of digital signal collects, the state parameter of operational outfit, operation is controlled after the data of carrying out and driving, send into a CPU, the one CPU is by the transformer station's electric parameters collecting, the state parameter of operational outfit, operation is controlled the data of carrying out with driving and is passed through intelligent supervisor, on deliver to observing and controlling functional circuit and multifunctional circuit, observing and controlling functional circuit and multifunctional circuit are by the distant data of the electric system calculating four, dynamic data, transient state recorder data, power quality data, network message analysis result is according to the station level system to transformer station by Internet Transmission.
Process layer functional circuit is processed the AC sampling of routine transformer and is had the digital sample of electronic mutual inductor, the input and output of conventional Control can be carried out, the digitizing input and output of the transformer substation case GOOSE (Generic Object Oriented Substation Event) based on towards general object can be carried out.
As shown in Figure 2, liquid crystal panel management circuit is provided with the 2nd CPU, adopt the S3C2410(ARM9 of Samsung Group), the 2nd CPU is connected with the synchronous DRAM SDRAM of 16M * 16, start address is 0x0C000000, the BIT SDRAM storage medium of 4M * 16 in addition, and start address is 0x0, for deposit operation system and application system, be also connected with flash memory FLASH and the clock circuit of 8M; The 2nd CPU is connected with the Thin Film Transistor (TFT) TFT of 4 inches 320 * 240,8 buttons, a slice 100M network controller, network controller adopts AX88796B chip, network controller connects 5 mouthfuls of exchange chips of a slice 100M, 5 mouthfuls of exchange chips adopt RTL8305SC, connect respectively debugging serial interface, network interface 1, network interface 2 and network interface 3.Liquid crystal panel management circuit is connected with the bus board of board through network interface 1, network interface 2 and network interface 3.
Liquid crystal panel management circuit is responsible for finishing man-machine interaction, and user command is issued to each circuit by intelligent supervisor.User assigns steering order by being arranged on button on guidance panel, by intelligent supervisor, is handed down to observing and controlling functional circuit, multifunctional circuit, process layer functional circuit.
Intelligent supervisor adopts high speed on-site programmable gate array FPGA, FPGA is the EP3C16F484C8N type fpga chip of U.S. altera corp, for technical grade chip, anti-interference strong, gigabit Ethernet completes the data stream transmitting between plate, when circuit (function plate) is more, can divide virtual LAN VLAN, manage respectively.
FPGA be responsible for intelligent supervisor to time and observing and controlling functional circuit, multifunctional circuit, process layer functional circuit and liquid crystal panel management circuit between communication function.In intelligent supervisor, be provided with intelligent management system, adopt circuit framework, by the function realizing, as circuit form, occur, separate, interface is clear and definite, high cohesion, low coupling, the function that intelligent management system is realized comprises as circuit: management bus circuit, data bus circuit, to time bus circuit.
As shown in Figure 3, observing and controlling functional circuit is provided with the 3rd CPU, adopt the CPU of Freescale semiconductor (China) company limited, model is MPC8247, the 3rd CPU is connected with the memory chip of 8 16M * 16, every 4 memory fields that form 16M * 64, its internal memory start address is respectively 0x0 and 0x11000000; The 3rd CPU is connected with flash memory FLASH, clock circuit and the BOOTROM socket of 8M, and FLASH is for deposit operation system, application system and FPGA configuration-system, and FLASH takes 16 bit manipulations, and its Memory control start address is 0x30000000; The 3rd CPU connects light/electrical interface (light/electricity mouthful) and debugging interface or electrical interface (debug port or electricity mouthful) through ethernet PHY network interface card, when the 3rd CPU connection 4 serial ports, 16V554 go here and there and change mouthful 4 serial ports that connect, two-way global position system GPS school, capacity is that the external memory of 2G links and meets the 3rd CPU, and the Memory control start address of external memory card storage is 0x16000000; The 3rd CPU bus when the IO bus of the 3rd FPGA and board, school is connected, realize observing and controlling functional circuit and I/O control bus with to time bus be connected.The 3rd CPU connects respectively external light/electrical interface or to grace data bus, 2 external light/electrical interfaces through three media access control layer MAC, the ethernet PHY network interface card of board.
In the data bus that observing and controlling functional circuit is controlled by intelligent supervisor (LVDS), IO bus (LVDS), obtain original sampling data, by EP3C16F484C8N type fpga chip, send data to PowerPC in the 3rd CPU(corresponding diagram 4), by the 3rd CPU, calculated, then result of calculation is transferred to liquid crystal panel management circuit for user by MAC and serial ports.
Observing and controlling functional circuit freely configures, throws and move back according to transformer station's actual condition.User can carry out operative intelligence manager by input equipment (being arranged on button on guidance panel), and observing and controlling functional circuit is set and in device, whether enables, thus the method for operation of modifier.
As shown in Figure 4, multifunctional circuit is provided with the 4th CPU, adopt the CPU of Freescale semiconductor (China) company limited, model is MPC8247, the 4th CPU is connected with the memory chip of 8 16M * 16, every 4 random access memory ram districts that form 16M * 64, the sheet that Liang Ge RAM district takies respectively MPC8247 selects CS1 and CS7, and start address is respectively 0x0 and 0x11000000; The 4th CPU is connected with flash memory FLASH, clock circuit and the BOOTROM socket of 8M, and FLASH is for deposit operation system, application system and FPGA configuration-system, and FLASH takes 16 bit manipulations, takies the CS2 sheet choosing of MPC8247, and start address is 0x30000000; Capacity is the CF card (data storage device Compact Flash) of 2G, takies the CS4 sheet choosing of MPC8247, and start address is 0x16000000; The 4th CPU connects light/electrical interface (light/electricity mouthful) and debugging interface or electrical interface (debug port or electricity mouthful) through ethernet PHY network interface card, when the 4th CPU connects 4 serial ports, 16V554 and go here and there and change 4 serial ports, the two-way GPS school of mouth connection, or with the 2nd, 3 network interfaces carry out IEEE1588 network to time.The 4th CPU bus, FPGA configuring chip when the input and output IO bus of the 4th FPGA and board, data bus, school are connected, and FPGA is the EP3C16F484C8N type fpga chip of U.S. altera corp.The 4th CPU connects respectively 3 external light/electrical interfaces through three media access control layer MAC, the ethernet PHY network interface card of board.
The 4th CPU is built-in with 2 Ethernet interfaces, and external 3 AX88796 Ethernet interfaces, provide at most 5 Ethernet interfaces.8 serial ports can flexible configuration be all 232,485 or 422 mouthfuls.
Multifunctional circuit completes the related work of dynamic data, transient state recorder data, power quality data, network message analysis, by the network interface card on this circuit, be transferred on user computer, by intelligent supervisor, be transferred to liquid crystal panel management circuit provides data to show simultaneously again.
Multifunctional circuit can freely configure according to transformer station's actual condition, throw and move back.User can pass through operative intelligence manager, and multifunctional circuit is set and in device, whether enables, thus the method for operation of modifier.
The network message analytic function that multifunctional circuit has is enrolled the process layers such as sampled value SV (Sampled Value) message, GOOSE message at this interval.Adopt the mode of real time record, rolling storage to preserve the message collecting, user can pass through IEC61850 agreement, transfers message and carries out senior application and in-depth analysis.
According to the application demand of the automation of transformation substations, the multifunctional all measure and control device of the intelligent substation of the present embodiment, adopts following configuration:
Half storey 4U subrack structure, has 5 groove positions, and numbering is followed successively by No. 1 groove, No. 2 grooves, No. 3 grooves, No. 4 grooves, No. 5 grooves from right to left, inserts altogether 4 blocks of plates, as shown in table 1:
No. 5 grooves No. 4 grooves No. 3 grooves No. 2 grooves No. 1 groove
Process layer functional circuit Empty Multifunctional circuit Observing and controlling functional circuit Power circuit
Liquid crystal panel management circuit is arranged on device front panel, and intelligent supervisor is arranged on device backboard, power circuit support interchange or the power supply of direct current 220V input media.Power circuit is plug-in unit independently, is characterized in can be in device other plates or load and powers, and guarantees the permission of these electron devices.
Half storey 4U subrack structure is applicable to 110kV~500kV circuit, bus section, the one-sided occasion of main transformer, and device gathers three-route voltage U a, Ub, Uc, circuit synchronous voltage Ux, residual voltage 3U0, three-phase measurement electric current I a, Ib, Ic, three-phase protective electric current I a, Ib, Ic, zero-sequence current or reactor current AC signal.Measure the aberration rate of the effective value, total harmonic distortion and 2~19 each harmonics that calculate each road voltage, electric current, and calculate the electric parameters such as phase differential of effective value, active power, reactive power, power factor (PF), busbar voltage frequency, synchronous voltage frequency, synchronous voltage and the busbar voltage of three-phase voltage.Gather 116 remote signals.Control ten objects, to each object carry out through anti-misoperation locking logic minute, the operation of closing operation and manual block, anti-misoperation locking logic can configuration.Support the remote control of transformer gear.Support synchronized phasor, the quality of power supply, failure wave-recording, message analysis function.
As shown in Figure 5, the multifunctional all TT&C system of intelligent substation of the present invention, comprise the observing and controlling functional module being arranged in observing and controlling functional circuit, be arranged on the synchronous phasor measurement module in multifunctional circuit, quality of power supply functional module, transient state disturbance monitoring module, liquid crystal panel administration module in liquid crystal panel management circuit, process layer functional module and intelligent supervisor module in process layer management circuit, described observing and controlling functional module, synchronous phasor measurement module, quality of power supply functional module, transient state disturbance monitoring module, liquid crystal panel administration module is realized intercommunication mutually with process layer functional module by intelligent supervisor module.
Process layer functional module is arranged in process layer management circuit, while accessing for conventional AC loop, main being responsible for converts strong voltage, the magnitude of current after corresponding light current voltage signal to, after A/D circuit module conversion by process layer functional circuit plate, be sent to a CPU on process layer functional circuit plate, formation can be for the crude sampling value of other functional modules; If adopt digital form sampling, SV, the Ethernet interface of GOOSE message on process layer-management circuit directly enter CPU on this circuit board, through the parsing of its message is obtained to actual crude sampling value, because the on-the-spot SV message using of digitizing is conventionally from different merge cellses, and the data that each merge cells sends are due to the impact of device inherent delay and network delay, can make the time disunity of message arrival process layer-management circuit, finally cause sampled value data asynchronous, make result of calculation produce error.Process layer functional module reaches the synchronous object of data with Lagrangian quadratic interpolation algorithm.
Process layer functional module is obtained voltage, electric current crude sampling value from transformer substation voltage, current transformer, from the switchgear of transformer station, obtain the sampled value of intake, to after the sampled value of the voltage obtaining, electric current and intake, send these original sampling datas to intelligent supervisor module, intelligent supervisor module is transferred to respectively observing and controlling functional module, synchronous phasor measurement functional module, quality of power supply functional module and transient state disturbance monitoring functional module by these original sampling datas after receiving data, for these functional modules, implements alarm application.
Observing and controlling functional module receives after the original sampling data that intelligent supervisor module transmits, and measures and the processing of control aspect.The measurement result of its electric parameters adopts following computing formula to calculate:
The electric current in cycle, voltage signal can be expressed as:
x ( t ) = c 0 + Σ k = 1 ∞ [ a k cos ( k ω 1 t ) + b k sin ( k ω 1 t ) ]
In formula, ω 1angular frequency for periodic function 1=2 π/T; K is overtone order, c 0for DC component; Can calculate thus coherent signal k subharmonic amplitude, phase angle, effective value.
Amplitude: c km = a k 2 + b k 2
Phase angle:
Effective value: c k = 1 2 c km
The AC signal that observing and controlling functional module sends intelligent supervisor module by above formula is decomposed, can calculating voltage, current signal each harmonic and total effective value and active power, reactive power, power factor (PF).Observing and controlling functional module is transferred to liquid crystal panel management circuit by the measurement result calculating via intelligent supervisor module and shows in real time.
The intake signal that transformer station measurement and control device gathers, it is the alleged remote signalling amount of telemechanical, reaction be the running status of transforming plant primary equipment, information such as the actuating signal of opertaing device and alerting signals, yardman determines on this basis equipment working condition and determines whether operate.The correctness of its information directly affects the method for operation of system, the correct operation of automation equipment and dispatcher's decision-making, significant to the normal operation of electrical network.
Multifunctional all measure and control device gathers remote signalling amount by process layer functional circuit, the principle gathering is that process layer functional circuit first carries out photoelectricity isolated variable to signal input, the make-and-break signal of forceful electric power is converted to " 0 ", the level"1" of digital quantity, then carries out timing sampling processing.When remote signalling amount changes, observing and controlling functional module records and stamps markers, this markers is used the Coordinated Universal Time(UTC) UTC(Coordinated Universal Time of international standard) time representation, so just can clearly represent that this remote signalling amount, at certain UTC, displacement has occurred constantly, form sequence of events recording information (Sequence of Events, SOE), this sequence of events recording information is rolled on the one hand and is stored in the flash memory of observing and controlling functional circuit, for user scene, check, can send to user by the Ethernet interface on telemetry circuit plate on the other hand.
Due to on-the-spot node signal jitter or electromagnetic interference influence, switching value signal is shaken.For preventing remote signalling wrong report or failing to report, at process layer functional circuit, filtering circuit is set carries out low-pass filtering to remote signals to device on the one hand, the high frequency interference on filtering side circuit, and observing and controlling functional module is on the other hand carried out secondary filtering to remote signals.Observing and controlling functional module is the default remote signalling debounce time setting value Td of each remote signals to remote signals secondary filtering, and its physical significance is the longest shake time of relay tip.When remote signals shake time Δ t is less than remote signalling debounce time setting value Td, after remote signals shake, revert to again former shake state before, be defined as electromagnetic interference influence, shake is by filtering.When remote signals generation displacement, if signal reaches a steady state (SS) through the anti-shake time, can confirm to occur signal displacement, the anti-shake time is 7 milliseconds to 2 seconds.Observing and controlling functional module calculates intake result, the computing method of intake are states recording after state and displacement between the displacement of directly more originally opening, and intake result is transferred to liquid crystal panel administration module via intelligent supervisor module, and liquid crystal panel administration module is undertaken showing and showing in real time in real time by liquid crystal display.
Liquid crystal panel management circuit has " distant place/locality " handle, when measure and control device carries out backstage or dispatching remote control, must make handle in " distant place " position; When device carries out local panel operation, must make handle in " locality " position.
Process layer functional module has " maintenance drops into " function; when overhauling, corresponding primary equipment or relay protection device can use; when installing in inspecting state; the order of observing and controlling functional module automatic shield remote control; on stopping, observing and controlling functional module remote measurement amount send; remote signalling amount maintains the front state of maintenance, send " operation/maintenance " state on." maintenance " that observing and controlling functional circuit has open into, be used for controlling measure and control device " operation/maintenance " state, when " opening into public " short circuit of observing and controlling functional circuit, device enters inspecting state.
Observing and controlling functional module has ten tunnel remote control outputs, and the remote control of every road can be closed a floodgate respectively or separating brake, and this three steps be selected, be returned to school, carry out to each road straighforward operation must through remote control, guarantees the correct of straighforward operation.Output relay is through light-coupled isolation.
The Remote Control Automatic accurate asynchronous switch-on function that observing and controlling Implement of Function Module is perfect, does the same period with bus A phase voltage Ua and circuit synchronous voltage Ux and differentiates.There is amplitude compensation function and phase angle compensation function, on-the-spot adaptable.Adopt multiprecision arithmetic, close a floodgate accurately.Isolating switch has multiple combined floodgate mode, comprises asynchronous switch-on, cyclization combined floodgate, combined floodgate with no pressure, test combined floodgate etc., can adopt special-purpose control command, also retains common combined floodgate order.When adopting common combined floodgate order, device will be according to both sides input voltage signal, and automatic decision combined floodgate mode, carries out corresponding closing operation.
The Remote Control Automatic accurate synchronous operation process of observing and controlling functional module is as follows:
(1) A phase voltage and synchronous voltage, after process layer circuit gathers, are calculated by observing and controlling functional module, draw amplitude, phase differential and the frequency of Ua, Ux, and phase difference calculating formula is as follows:
△Angl=∠Ua-∠Ux
Wherein △ Angl is phase differential, and ∠ Ua and ∠ Ux are respectively the phase angle of Ua phase angle and Ux, and frequency computation part formula is as follows:
f=△Angl/2π
(2) percentage when any side voltage magnitude of isolating switch is less than definite value, be generally set as ratings 80% or be greater than ratings 120% time, think that voltage magnitude is abnormal, exit same period judgement.Ratings is generally 57.73V.
(3) when the absolute value of isolating switch both sides voltage difference is greater than definite value Δ U, think that voltage difference is abnormal, exit the judgement same period.Wherein, definite value Δ U is traditionally arranged to be 20% of ratings, and 20% of 57.73V, be 11.546V.
(4) judge that whether isolating switch both sides frequency is normal.When the frequency of any side of isolating switch is less than 48Hz, or be greater than 52Hz, think that frequency size is abnormal, exit the judgement same period.When the absolute value of isolating switch both sides difference on the frequency is greater than definite value Δ F, definite value Δ F is 0.00~2Hz, thinks that difference on the frequency is abnormal, exits the state same period.When the rate of change df/dt of isolating switch both sides difference on the frequency is greater than definite value df/dt, thinks and exit the state same period by frequency difference abnormal change ratio.Rate of change df/dt is calculated by the of ac sampled value of sending in process layer functional module by observing and controlling functional module, and definite value df/dt is set in advance by user.
(5) observing and controlling functional module adopts the principle same period of constant echizen time, in the phase angle difference of isolating switch both sides voltage, be that certain hour before zero sends switching signal, time is 0.00~2S, when the main contact of isolating switch is closed, the phase angle difference of isolating switch both sides voltage is zero, minimum to the impact of electrical network.
From device, sending the time that switching signal experiences to isolating switch main contact closure is the combined floodgate leading time of isolating switch, mainly comprise exit relay actuation time and breaker closing time, combined floodgate leading time is set by engineering site isolating switch actual conditions, is generally set as 2 seconds.Measure and control device is extrapolated combined floodgate angle of phase lead according to the slippage of combined floodgate leading time and the some both sides voltage that closes a floodgate, and device sends switching signal at this angle of phase lead, and asynchronous switch-on angle of phase lead can be tried to achieve by following formula:
δ yj = ω si T dq + 1 2 Δωsi Δt T dq 2
Wherein Tdq is combined floodgate leading time; ω si is the slippage angular velocity of calculation level, and Δ ω si/ Δ t is slippage angular acceleration, slippage angular velocity and angular acceleration, can be in the hope of best combined floodgate lead angle.
The closing operation step with no pressure of observing and controlling functional module:
(1) calculate Ua, Ux voltage magnitude and frequency.
(2) if Ua, Ux two voltages have at least a voltage magnitude quite before recording to be less than definite value with respect to the percentage of ratings (being generally 57.73V), definite value is set to 10% conventionally.Be combined floodgate mode with no pressure, the output of closing a floodgate.
Cyclization closing operation step:
(1) calculate Ua, Usa voltage magnitude and frequency.
(2) if the percentage of both sides voltage magnitude is all greater than definite value (generally definite value is 10%), both sides frequency is identical, and two phase angle differences are less than and allow switching-on phase poor (generally phase differential is 2 °), and cyclization is closed a floodgate and exported, otherwise cyclization is closed a floodgate unsuccessfully.
Test closing operation step:
When device, receive test and close a floodgate after order, will directly carry out breaker switching-on operation, without examining the same period or examining judgement with no pressure.
The same period, definite value was as shown in table 2:
The same period, control word was as shown in table 3:
Observing and controlling functional module has perfect full station property anti mis-closedown function, user is when implementing remote control, measure and control device can decide open or lock-in control output according to predefined anti-mis-logical, except differentiating the barring condition of this interval electric loop, can also differentiate by the relevant barring condition across interval other.Except relevant device state is differentiated, can also differentiate the relevant analog quantity gathering.As disconnecting switch operation, differentiate CT no current, while closing ground cutter, judge that CVT or PT no-voltage, double-bus stop using as a servant while drawing bus before a bus and should judge its CT no current etc.Guarantee the safe operation of transformer station.Remote control result is transferred to process layer functional circuit via intelligent supervisor module and exports in real time.
The original sampling data sending in synchronous phasor measurement module receiving course layer function module; utilize high-precision gps satellite synchronous clock to realize the synchro measure to electrical network busbar voltage and line current phasor; by communication system, be sent in the control center of electrical network or protection, controller, for realizing the whole network operational monitoring control or feasible region protection and controlling.
The voltage of AC electric power systems, current signal can be used phasor representation, and phasor is comprised of two parts, i.e. amplitude X(effective value) and phase angle φ, with rectangular coordinate, be expressed as real part and imaginary part.So phasor measurement just must be measured amplitude and phase angle simultaneously.Amplitude can be measured with alternating voltage reometer; And the size of phase angle depends on time reference, same signal is under different time references, and its angle values is different.So, when carrying out system phasor measurement, must there is a unified time reference, high-precision GPS synchronous clock just provides such reference point.Any two phasors are merit angle, two places " poor " of two phase angles that record under reference point unified time, and Here it is, and synchronous phasor measurement module realizes ultimate principle, are the detailed description of this module below:
If sinusoidal signal:
x ( t ) = 2 X cos ( 2 πft + φ )
Can adopt phasor representation to be:
X · = Xe jφ = X cos φ + jX sin φ = X R + j X I
Phasor has two kinds of method for expressing: method of direct coordinate (real part and imaginary part) and polar method (range value and phase place).AC signal, by Fourier transform, is transformed into frequency-region signal by the sampled value of input, thereby obtains phasor value.Sinusoidal signal can show by the form of phasor:
X ‾ = 2 N Σ k = 0 N - 1 x k e - j 2 π N k = X R + j X I
Suppose that two voltage signals corresponding to node in electric system are respectively its corresponding phasor is respectively when t=0 receives the pps pulse per second signal (1PPS) that gps system sends constantly, two synchronisation of nodes voltage phasors as shown in Figure 6, in unified coordinate system in advance 90 °.
The sampling pulse of the process layer functional module output of this measure and control device, the error of sampling pulse is not more than 1us.In synchronized sampling process, the pulse per second (PPS) of the free synchronization module of data sampling pulse locking, guarantee Synchronous Sampling Pulse be evenly distributed on per second in, correspondingly markers corresponding to phasor be also evenly distributed on per second in.
Device for digitized sampling, merge cells device in transformer station is sampled to the voltage of electrical network, current signal, by merge cells device, sampled value is sent to again to the multifunctional all measure and control device of intelligent substation of the present invention, the process layer functional circuit receiver side of device according in IEC61850-9-2 message with second decile value and local zone time calculate the markers of synchronized phasor, and the moment of the network interface card arranging on direct mark message arrival device process layer functional circuit when this plate receives, guarantee accuracy of measurement.
Synchronized phasor communication is used C language to complete, and calls standard application DLL (dynamic link library) API(Application Programming Interface), code possesses cross-platform ability.
Use ieee1344_device_rtd_send function to complete the transmission of real time data frame:
Use ieee1344_decode function to decode to the communication frame of synchronized phasor:
When design and construction, the optical fiber by interval merge cells and intelligent operation box outlet, will be input to the process layer feature board of device by dish coil holder.In digitalizer, no longer adopt traditional interchange plate, but by fiber optic Ethernet, receive the IEC61850-9-1/2 protocol massages of MU.Ac terminal definition is as shown in table 4:
Terminal numbering Terminal explanation MMS variable name
1 Ua TMPLATESVLD/TVTR1.Vol1.InstMag.I
2 Ub TMPLATESVLD/TVTR2.Vol1.InstMag.I
3 Uc TMPLATESVLD/TVTR3.Vol1.InstMag.I
4 3U0 TMPLATESVLD/TVTR4.Vol1.InstMag.I
5 Ux TMPLATESVLD/TVTR5.Vol1.InstMag.I
6 Ima TMPLATESVLD/TCTR1.Vol1.InstMag.I
7 Imb TMPLATESVLD/TCTR2.Vol1.InstMag.I
8 Imc TMPLATESVLD/TCTR3.Vol1.InstMag.I
9 3I0 TMPLATESVLD/TCTR4.Vol1.InstMag.I
As shown in Figure 6, Figure 7, illustrated that device of the present invention and system are netted by GOOSE virtual open into, output function.
Synchronous phasor measurement module is transferred to liquid crystal panel administration module by the phasor data of having calculated by intelligent supervisor module, and liquid crystal panel administration module shows in real time by liquid crystal display, in addition, can result be exported to by network interface to the user of far-end.
The original sampling data sending on quality of power supply functional module receiving course layer function circuit, carries out the evaluation work that the quality of power supply is relevant.
The large function of monitoring three of Detecting Power Harmonics, voltage fluctuation and flickering, transient state disturbance between the measurement of the quality of power supply has mainly realized.
Between Detecting Power Harmonics:
Between harmonic wave refer to the harmonic wave of non-integral multiple fundamental frequency, this rahmonic can be discrete spectrum or continuous frequency spectrum.Quality of power supply functional module is calculated according to the regulation of GB GB/T19862-2005 < < power quality monitoring device General Requirement > >, that is: to power frequency 50Hz system, sampling time is got 10 cycles (200ms), the monitoring obtaining value method of described harmonic wave, adopt the obtaining value method for harmonic wave in GB GB/T14549-93 < < quality of power supply utility network harmonic wave > > to carry out, a master record cycle was 3 seconds,
Voltage fluctuation and flickering monitoring:
The voltage fluctuation of electric system and flickering are mainly to be caused by the load with impact power, as RHVC, electric furnace arrangement for producing steel, electric railway and rolling mill etc.These non-linear, uneven impact loads in process of production meritorious and reactive power change at random or periodically significantly, when its undulating current flows through supply line's impedance, produce the pressure drop of change, cause on same electrical network other user's voltage with identical frequency jitter.This voltage magnitude within the specific limits (be generally ratings 90%~110%) is regular or change randomly, is called voltage fluctuation.
Voltage fluctuation can cause many electrical equipment cisco unity malfunctions conventionally, as affect television picture quality, make motor speed pulsation, make electronic device work not normal, make incandescent light that flicker etc. occur.Due to general consumer to the susceptibility of voltage fluctuation far below incandescent lamp, for this reason, select the subjective visual sense of people to the fluctuation of incandescent lamp illumination, i.e. " flickering ", as the evaluation index of weighing the voltage fluctuation extent of injury.
Voltage fluctuation
Voltage fluctuation △ V is the cyclical variation of series of voltage change or power-frequency voltage envelope.The percentage poor, Chang Yiqi rated voltage that quality of power supply functional module is considered as magnitude of a voltage fluctuation two adjacent extreme values of rms voltage represents its relative percentage value,
△V=(U max-U min)/U N*100%
U maxfor this cycle voltage max, U minfor this cycle voltage minimum, U nfor rated voltage.
Quality of power supply functional module is preserved a voltage fluctuation record by every 10 minutes of the requirement of the GB GB12326-2008 < < quality of power supply-voltage fluctuation and flickering > >, gets the moment that the maximal value of voltage fluctuation in 10 minutes finishes together with this 10 minutes section to form a complete voltage fluctuation record;
Flickering:
The main short time flicker severity of the measurement index P of voltage flicker stwith long-time Term Flicker Severity P lt, quality of power supply functional module is calculated by following formula:
P st = 0.0314 P 0.1 + 0.0525 P 1 + 0.0657 P 3 + 0.28 P 10 + 0.08 P 50
P in formula 0.1, P 1, P 3, P 10, P 50be respectively instantaneous flicker visual sense degree S (t) over the value of 0.1%, 1%, 3%, 10%, 50% time ratio.S (t): instantaneous flicker visual sense degree, the time dependent a series of values of instantaneous value of flickering power.
P k: a certain instantaneous visual sense degree S (t) value is institute's accounting in whole detection time section:
P lt = 1 N &Sigma; k = 1 N P st , k 3 3
P in formula st, k: be the k time measured P stvalue, N is 2 hours P that surveyed every 10 minutes stthe number of value.Because flickering relates to more concept, be necessary these concepts to do a summary.
1) rule F (%) is perceiveed in flickering
The subjective feeling that the human eye that " flickering " causes as voltage fluctuation dodges lamp, not only relevant with the size of voltage fluctuation, also relevant with people's the factors such as visual sense with frequency, waveform, the performance of light fixture of fluctuation.For describing the influence degree of flickering to people's vision, the amplitude modulation of IEC recommend adoption different wave, frequency, amplitude involve power-frequency voltage as carrier wave to power frequency 230V, 60W incandescent lamp powered lighting.Through observer's sampling (>500 people) investigation, quality of power supply functional module is added up by following formula:
F=(C+D)/(A+B+C+D)×l00%
A in formula---the number not perceiveing;
B---the number slightly perceiveing;
C---there is the number obviously perceiveing;
D---insupportable number;
2) instantaneous visual sense degree st:
Voltage fluctuation causes that illumination fluctuation is called instantaneous flicker visual sense degree st to people's subjective vision reaction.Conventionally the flickering of take is perceiveed rate as 50%, as the unit of measurement of instantaneous flicker visual sense degree, is defined as st=1 and perceives unit.Perceiveing corresponding each voltage to frequency undulating quantity △ V% of unit with st=1, is the experimental basis that quality of power supply functional module is calculated flickering.
3) visual sense degree COEFFICIENT K f:
People's cranial nerve contrast degree changes need to minimum memory time, illumination fluctuation ordinary people higher than a certain frequency is just not aware of, flickering is the subjective visual sense to illumination through lamp → eye → brain link reflection people, introduce visual sense degree COEFFICIENT K f more constitutionally the frequency characteristic of lamp → eye → brain link is described.
The visual sense degree coefficient calculations mode that quality of power supply functional module is recommended according to IEC is calculated, and formula is as follows:
The 8.8Hz sinusoidal voltage that Kf=produces same visual sense degree fluctuate/the produce fHz sinusoidal voltage fluctuation of same visual sense degree
4) short time flicker severity P stwith long-time Term Flicker Severity P lt:
Voltage fluctuation for random variation loads such as electric arc furnaces, not only will check its peak to peak, also will observe in the long enough time the special part of statistics of voltage fluctuation.P st(timing statistics is 10min) is the statistical value of describing short time flicker, P lt(timing statistics is 2h) is for describing the statistical value of long-time flickering.By GB requirement, a record period of Short Term Flicker is 10 minutes, and when long, flickering is 2 hours, and quality of power supply functional module is carried out statistical study according to this rule.
Quality of power supply functional module is transferred to liquid crystal panel administration module by the data of having calculated by intelligent supervisor module, and liquid crystal panel administration module shows in real time by liquid crystal display.
The original sampling data sending on transient state disturbance monitoring module receiving course layer function circuit, carry out the evaluation work that transient state disturbance monitoring is relevant, and result is transferred to liquid crystal panel administration module module by intelligent supervisor module, liquid crystal panel administration module shows in real time by liquid crystal display.
Transient state disturbance comprises transient overvoltage, voltage dip, transient overvoltage and short time voltage disruption, and transient state Disturbance Detection module is calculated according to following rule.
Voltage dip refers to that under power frequency condition, rms voltage is reduced to 10% to 90%, the short time voltage fluctuation phenomenon that the duration is 10ms to 1min.
Voltage swell is at any voltage of electric system suddenly suddenly to 1.1~1.8p.u, and the duration is conventionally at 10ms~1min.
Short time voltage interrupts referring to that supply voltage disappears a period of time (it is following that voltage drops to 0.1p.u.), is generally no more than a few minutes.Interrupt thinking in short-term the voltage dip of 100% amplitude.
Transient overvoltage refers to the superpotential of in given mounting points long-term unattenuated or underdamping (with power frequency or its certain multiple, mark) vibration.
Transient overvoltage refers to duration number millisecond or shorter, conventionally with strongly damped vibration or nonoscillating a kind of superpotential.It can be superimposed on temporary overvoltage.
The multifunctional all measure and control device of embodiment intelligent substation, adopt process layer functional circuit, observing and controlling functional circuit and observing and controlling functional module complete transformer station's interval observing and controlling function, make each interval still retain the configuration of separate unit measure and control device, in this, at every table apparatus, add multifunctional circuit and synchronous phasor measurement software module simultaneously, the Survey Software module of the quality of power supply etc. realizes intelligent substation synchronous phasor measurement, the correlation functions such as the measurement of the quality of power supply, improved to a great extent the integrated level of transformer station secondary system, reduced relevant design, engineering, operations staff's workload, improved intelligent substation stability, reliability.

Claims (10)

1. the multifunctional all measure and control device of an intelligent substation, it is characterized in that: the multifunctional all measure and control device of described intelligent substation is provided with observing and controlling functional circuit, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, process layer functional circuit and for the intelligent supervisor of exchanges data; Described intelligent supervisor connects observing and controlling functional circuit, dynamically, multifunctional circuit and the process layer functional circuit of Temporal Data monitoring and network message analysis and power quality analysis;
Described process layer functional circuit is processed the AC sampling of routine transformer and is had the digital sample of electronic mutual inductor, carries out the input and output of conventional Control, carries out the digitizing input and output of the transformer substation case GOOSE based on towards general object;
Described intelligent supervisor be responsible for to time, with observing and controlling functional circuit, dynamically, Temporal Data monitoring and the multifunctional circuit of network message analysis and power quality analysis and the communication between process layer functional circuit;
Described observing and controlling functional circuit is by obtaining original sampling data on intelligent supervisor and calculating;
Described dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis be used for the work of dynamic data, transient state recorder data, power quality data, network message analysis, be transferred on user computer, by intelligent supervisor, be transferred to liquid crystal panel management circuit provides data to show simultaneously again.
2. the multifunctional all measure and control device of intelligent substation according to claim 1, is characterized in that: described intelligent supervisor is connected with liquid crystal panel management circuit;
Described liquid crystal panel management circuit is responsible for finishing man-machine interaction, and user command is issued to each circuit by intelligent supervisor; User assigns steering order by button, by intelligent supervisor, is handed down to observing and controlling functional circuit, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, and process layer functional circuit;
Described observing and controlling functional circuit is by obtaining original sampling data on intelligent supervisor and calculating, then result of calculation is transferred to liquid crystal panel management circuit for user;
Described dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis by the dynamic data completing, transient state recorder data, power quality data, network message analysis is transferred to liquid crystal panel management circuit by intelligent supervisor provides data to show.
3. the multifunctional all measure and control device of intelligent substation according to claim 2, is characterized in that: described intelligent supervisor adopts high speed field programmable gate array (FPGA); In described intelligent supervisor, be provided with intelligent management system, the functional circuit that described intelligent management system is realized is: management bus circuit, data bus circuit, to time bus circuit.
4. the multifunctional all measure and control device of intelligent substation according to claim 3, it is characterized in that: described process layer functional circuit is provided with a CPU, a CPU is connected with respectively the circuit that internal memory, flash memory (FLASH), clock circuit, BOOTROM socket and simulating signal are converted to digital signal; The one CPU connects debugging serial interface through ethernet PHY network interface card; The one CPU is by primary scene programmable gate array FPGA connecting media MAC layer (MAC) interface, and a described FPGA inputs while also connecting light serial ports school, and a FPGA is connected with FPGA configuring chip; Process layer functional circuit bus, pulse per second (PPS) delivery outlet when the input and output IO bus of a FPGA and board, data bus, school are connected.
5. the multifunctional all measure and control device of intelligent substation according to claim 4, it is characterized in that: described liquid crystal panel management circuit is provided with the 2nd CPU, the 2nd CPU is connected with respectively synchronous DRAM (SDRAM), flash memory (FLASH), clock circuit, Thin Film Transistor (TFT) (TFT), button and network controller, network controller connects 5 mouthfuls of exchange chips, described 5 mouthfuls of exchange chips connect respectively debugging serial interface, network interface 1, network interface 2 and network interface 3, described liquid crystal panel management circuit is through network interface 1, network interface 2 is connected with the bus board of board with network interface 3.
6. the multifunctional all measure and control device of intelligent substation according to claim 5, is characterized in that: described observing and controlling functional circuit is provided with the 3rd CPU, and the 3rd CPU is connected with respectively internal memory, flash memory (FLASH), clock circuit and BOOTROM socket; The 3rd CPU connects light/electrical interface and debugging interface or electrical interface through ethernet PHY network interface card, the 3rd CPU connect be also connected with serial ports, when 16V554 go here and there and change a serial ports, the two-way global position system GPS school of mouth connection; The 3rd CPU bus when the IO bus of the 3rd FPGA and board, school is connected; The 3rd CPU also connects respectively external light/electrical interface or to grace data bus, external light/electrical interface through media access control layer (MAC), the ethernet PHY network interface card of board.
7. the multifunctional all measure and control device of intelligent substation according to claim 6, it is characterized in that: described dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis is provided with the 4th CPU, the 4th CPU is connected with internal memory, flash memory (FLASH), clock circuit and BOOTROM socket; The 4th CPU connects light/electrical interface and debugging interface or electrical interface through ethernet PHY network interface card, and the 4th CPU connects serial ports, when 16V554 go here and there and change a serial ports, the two-way GPS school of mouth connection, or with the 2nd, 3 network interfaces carry out IEEE1588 network to time; The 4th CPU bus, FPGA configuring chip when the input and output IO bus of the 4th FPGA and board, data bus, school are connected, and the 4th CPU connects respectively external light/electrical interface through media access control layer (MAC), the ethernet PHY network interface card of board.
8. the multifunctional all measure and control device of intelligent substation according to claim 7, it is characterized in that: described observing and controlling functional circuit, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, process layer functional circuit and liquid crystal panel management circuit independently arrange with the structure of board respectively.
9. the multifunctional all measure and control device of intelligent substation according to claim 8, it is characterized in that: the multifunctional all measure and control device of described intelligent substation is provided with cabinet, described cabinet adopts half storey 4U subrack structure, process layer functional circuit, dynamically, the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, observing and controlling functional circuit is plugged on the slot of cabinet; Liquid crystal panel management circuit is arranged on the front panel of cabinet, intelligent supervisor is arranged on the backboard of cabinet, on the slot of cabinet, be also plugged with power circuit, described power circuit is respectively process layer functional circuit, multifunctional circuit, observing and controlling functional circuit, liquid crystal panel management circuit and intelligent supervisor power supply.
10. the multifunctional all TT&C system of an intelligent substation, it is characterized in that: described integrated observing and controlling system is provided with the observing and controlling functional module being arranged in observing and controlling functional circuit, be arranged on dynamically, synchronous phasor measurement module, quality of power supply functional module, transient state disturbance monitoring module in the multifunctional circuit of Temporal Data monitoring and network message analysis and power quality analysis, be arranged on the liquid crystal panel administration module in liquid crystal panel management circuit, be arranged on process layer functional module and intelligent supervisor module in process layer management circuit; Described observing and controlling functional module, synchronous phasor measurement module, quality of power supply functional module, transient state disturbance monitoring module, liquid crystal panel administration module and process layer functional module realize intercommunication mutually by intelligent supervisor module;
Described observing and controlling functional module receives after the original sampling data that intelligent supervisor module transmits, and measures and the processing of control aspect;
The original sampling data sending in described synchronous phasor measurement module receiving course layer function module, utilize gps satellite synchronous clock to realize the synchro measure to electrical network busbar voltage and line current phasor, by communication system, be sent in the control center of electrical network or protection, controller, for realizing the whole network operational monitoring control or feasible region protection and controlling;
The original sampling data sending on described quality of power supply functional module quality of power supply functional module receiving course layer function circuit, carries out the calculating of the quality of power supply and result is transferred to liquid crystal panel administration module by intelligent supervisor module showing in real time;
The original sampling data sending on described transient state disturbance monitoring module transient state disturbance monitoring module receiving course layer function circuit, carries out the calculating of transient state disturbance monitoring and result is transferred to liquid crystal panel administration module by intelligent supervisor module showing in real time;
The data that described liquid crystal panel administration module reception intelligent supervisor module is sent also show in real time by liquid crystal display;
Described process layer functional module is obtained voltage, electric current crude sampling value from transformer substation voltage, current transformer, the sampled value that obtains intake from the switchgear of transformer station, will send these original sampling datas to intelligent supervisor module after the sampled value of the voltage obtaining, electric current and intake;
Described intelligent supervisor module is transferred to respectively observing and controlling functional module, synchronous phasor measurement functional module, quality of power supply functional module and transient state disturbance monitoring functional module by these raw data after receiving the original sampling data that process layer functional module sends; The result that observing and controlling functional module, synchronous phasor measurement functional module, quality of power supply functional module and transient state disturbance monitoring functional module are sent is transferred to liquid crystal panel administration module and shows in real time.
CN201310726360.5A 2013-12-25 2013-12-25 Multifunctional integrated measurement and control apparatus and system for intelligent transformer station CN103744417A (en)

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