CN101369723A - Protection system for reconfigurable static reactive-power compensation/DC de-icing composite apparatus - Google Patents
Protection system for reconfigurable static reactive-power compensation/DC de-icing composite apparatus Download PDFInfo
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- CN101369723A CN101369723A CNA2008102235824A CN200810223582A CN101369723A CN 101369723 A CN101369723 A CN 101369723A CN A2008102235824 A CNA2008102235824 A CN A2008102235824A CN 200810223582 A CN200810223582 A CN 200810223582A CN 101369723 A CN101369723 A CN 101369723A
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
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- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
Abstract
A protective system for reconstruction type static reactive compensation(SVC)/DC deicing composite apparatus, is designed with integration type and is composed of a data acquisition processing unit, a protection logic processing unit, a digital quantity input-output (DIDO ) processing unit and an epigyny machine processing unit, wherein the data acquisition processing unit acquiring AC/DC voltage and current of the whole system, and transmitting to all protection logic processing unit and control unit by synchronization serial buses; the protection logic processing unit receiving sampled data from the data acquisition processing unit, running protection algorithm to judge protection logic; the digital quantity input-output (DIDO) processing unit receiving commands transmitted by other units by controller local network (CAN-bus Network), executing operations to circuit breakers or insulation knife gates and acquiring auxiliary contact state of circuit breakers insulation knife gates; the epigyny machine processing unit completing system interface display, man-machine interaction, remote-control, polling and the like.
Description
Technical field
The invention belongs to the power electronics applied technical field, relate generally to the protection system that reconfigurable static reactive-power compensation is repaid (SVC)/DC de-icing composite apparatus.
Background technology
At the beginning of 2008, serious freezing rain and snow disaster has taken place in China Central China, southwest, East China, and the length wide, the duration of big, the freezing scope of its snowfall is historical rare.Continued on a large scale that the sleet freezing weather influences, electrical network facilities icing snowberg is serious, and wire breaking and tower falling line tripping phenomenon takes place frequently, and causes the electrical network massive losses, some areas electrical network even suffer crushing blow.For solving the heavy losses that the powerline ice-covering disaster causes for electric power system, national economy and even the whole society, carried out a large amount of analysis and research work about the transmission line ice-melt both at home and abroad.In numerous ice-melt schemes, be subjected to domestic and international most of experts and scholars' favor based on the DC ice melting scheme of electronic power rectification technology, have development and application space very widely.
Because time and frequency that ice damage takes place are all less, if DC ice melting equipment only can use as deicing device, its economy is relatively poor.For improving usage ratio of equipment, the general level of the health of maintenance equipment, can be on the basis of high-power thyristor Semiconductor Converting Technology, exploitation takes into account DC ice melting and two kinds of reconfigurable power electronic equipments of purposes of static reactive, be restructural type static reactive power compensation (SVC)/DC de-icing composite apparatus, to satisfy 220kV and above electric pressure transmission line ice-melt/deicing needs.When transmission line does not have the ice-melt demand, use as dynamic reactive compensation device, its function is equivalent to conventional static reactive power compensation (SVC) device, can support for system provides dynamic reactive, the damping system low-frequency oscillation improves the system stability limit and conveying capacity.And when transmission line needs ice-melt, through simple main electrical scheme reconstruct, can be more convenient change DC de-icing device into, with the icing circuit as load, apply DC power supply, come heating wires that its icing is melted for transmission line provides necessary DC ice melting current with low voltage.At present, the domestic application that does not also have this type of device abroad, also is the trial run device that there is cover AREVA company exploitation in Canadian L é vis transformer station.
Because this device runs on static reactive power compensation (SVC) and DC ice melting two states; it is designed that protection system of the present invention is repaid two kinds of operating conditions of (SVC)/DC de-icing composite apparatus at reconfigurable static reactive-power compensation exactly; assurance device can both be stablized reliability service under two kinds of different operating conditions.
Summary of the invention
The present invention program's purpose be guarantee that reconfigurable static reactive-power compensation is repaid (SVC)/DC de-icing composite apparatus all can reliability service under two kinds of different operating modes, when valve short circuit or ac and dc systems fault take place, can reliably trip.
The protection system that reconfigurable static reactive-power compensation is repaid (SVC)/DC de-icing composite apparatus as shown in Figure 1; this system is the protection system of integrated form; mainly by the data acquisition process unit; the protection Logical processing unit; digital quantity input and output (DIDO) processing unit, host computer processing unit several sections is formed.
All combined-voltage, magnitude of current in the data acquisition process unit acquisition system; through preliminary treatment; after being transformed into digital signal; pass through fiber optic network; according to synchronous serial bus (SPI) agreement, send to and gather the unit, gather the sampled value that all passages are collected in the unit; after all sampled values are reconfigured coding, send to protection Logical processing unit and other control unit by synchronous serial bus (SPI).
Digital quantity input and output (DIDO) processing unit is communicated by letter with protection and control unit by controller area network 2 (CAN-bus Network 2); controller area network 2 (CAN-bus Network 2) works in many holotypes; can communicate by letter each other in each unit; digital quantity input and output (DIDO) processing unit receives the order that other unit sends; execution is to the operation of circuit breaker or isolation switch, and the collection of circuit breaker isolation switch auxiliary contact state.
The host computer processing unit is mainly finished the demonstration of system interface; man-machine interaction; remote control; function such as patrol and examine; (CAN-bus Network 1) operates each unit by controller area network 1; controller area network 1 (CAN-bus Network1) works in master-slave mode; host computer is a main contact; other contact is from contact; respectively from communicating by letter between the contact; when host computer carries out the school by the mode of broadcasting to each unit; operations such as mode initialization; according to internal agreement; can protect the setting of definite value to each unit; inquiry; the throwing of protection pressing plate such as moves back at function, and the state information of each unit and incident also can be uploaded to host computer by controller area network 1 (CAN-bus Network 1).
The protection Logical processing unit receives the sampled data of data acquisition process unit, and from receiving the sampled value that buffering area extracts the protection related channel program, the running protection algorithm is protected the judgement of logic as required.(CAN-busNetwork1) communicates by letter with host computer by controller area network 1, the pattern of finishing the work, and the setting of protection definite value, and the operating sequence of events recording of handle assembly (SOE) sends to host computer; Communicate by controller area network 2 (CAN-bus Network 2) and digital quantity input and output (DIDO) unit; after the protection outlet; send trip signal by controller area network 2 (CAN-bus Network 2) to digital quantity input and output (DIDO) unit; under ice-melt mode; also to go to control the rectifier locking, and form bypass afterflow by switching value output.
This device runs on static reactive power compensation (SVC) and two kinds of mode of operations of ice-melt, and under different mode, the object of protection is all different with scope, so the protection configuration is also different, introduces two kinds of protection configuring conditions under the pattern below.
(1) DC ice melting pattern
Under the DC ice melting pattern, the zone of protection is divided into three parts, exchanging area protection, the protection of valve district and DC area protection.The protection logic diagram as shown in Figure 2.
The short trouble of the main protection of exchanging area protection rectifier input lead, and electric voltage exception continues the harm that operation causes to rectifier.Main configuration protection is as follows:
Exchange overvoltage protection;
The AC undervoltage protection;
Exchange overcurrent protection;
The valve district protects main protective valve short trouble, configuration rectifier differential protection.
The short trouble of the main protection of DC area protection DC line, the protection configuration is as follows:
The direct current breaking protection;
The direct current under-voltage protection;
The direct current overcurrent protection;
DC harmonic protection;
Because this deicing device is the rectifier bridge parallel connection of two 6 pulsation,, disposed the protection of bridge current imbalance for preventing two rectifiers because of the infringement that not current-sharing causes.
(2) static reactive power compensation (SVC) pattern
Under this pattern, protect simplyr, mainly protect the TCR branch road, the protection logic diagram is as shown in Figure 3.Concrete configuration is as follows:
The AC overvoltage protection;
Exchange under voltage protection;
The overcurrent protection of TCR branch road;
Current quick in the TCR angle;
The protection Logical processing unit decides which kind of protection algorithm of operation, and carries out corresponding exception handles according to the mode of operation that host computer issues.
Therefore the present invention proposes and a kind ofly be applied to reconfigurable static reactive-power compensation and repay/protection system of DC de-icing composite apparatus; this system is the protection system of integrated form; comprise the data acquisition process unit; the protection Logical processing unit; digital quantity input and output processing unit and host computer processing unit; can work in two kinds of mode of operations of static reactive power compensation and DC ice melting; described data acquisition process unit is that all described protection Logical processing units and control unit are shared; after the sampled value of all passages gathers through coding; send to each unit by synchronous serial bus, each unit extracts the related channel program sampled value according to the needs of self.
The trip signal of all described protection Logical processing units all sends to digital quantity input and output processing unit by controller area network, finishes direct control to circuit breaker, isolation switch by described digital quantity input and output processing unit.
Described host computer processing unit have demonstration, man-machine interaction, protection definite value, the mode of operation at interface setting, patrol and examine and distant control function.
Described system also comprises local area network 1 and local area network 2; wherein said controller area network 1 is principal and subordinate's net; described host computer carries out the setting of mode of operation, protection definite value to each unit; the logout information of each unit also is uploaded to described host computer; described controller area network 2 is many major networks, comprises communication, finishes the function of tripping operation request and failure wave-recording by this net between each unit.
Described protection Logical processing unit has 16 way switch amounts inputs and the output of 23 way switch amounts, and all open into the amount of leaving all through the photoelectricity isolation, also has 12 road indicator lights, in order to the different operating state of indicating device.
Described protection Logical processing unit also has programmable logic chip, digital signal processor 1 and digital signal processor 2; described programmable logic chip is shared by described digital signal processor 1 and digital signal processor 2; produce the control and the chip selection signal of two digital signal processor peripheral hardwares; described digital signal processor 1 and digital signal processor 2 communicate by dual port RAM; and utilize the mode of interrupting to notify the other side to visit, avoid access conflict.
Advantage of the present invention:
1. this protection system can run on static reactive power compensation (SVC) and two kinds of mode of operations of DC ice melting, by setting mode of operation, can select the protection of being disposed.
2. the part of data acquisition of native system sends to all protection Logical processing unit and other control units by spi bus; each protects Logical processing unit shared data acquisition processing module; avoid the overlapping of function between each unit, reduced hardware investment, simplified secondary connection.
3. respectively protect Logical processing unit to share digital quantity input and output (DIDO) processing module; trip signal sends to digital quantity input and output (DIDO) processing unit by controller area network (CAN net); finish the operational processes of circuit breaker by digital quantity input and output (DIDO) unit; avoided respectively protecting Logical processing unit to control circuit breaker by hardwire; simplified system wiring, the expansion of convenient protection Logical processing unit.
4. the expansion of native system protection Logical processing unit is convenient, and its quantity can be configured as required.
5. the mode of operation of native system and protection definite value are provided with by controller area network (CAN-bus Network) by host computer.
6. under the DC ice melting pattern, during troubleshooting, except sending trip signal, can also control rectifier locking bypass, the signal of control rectifier is light signal output.
Description of drawings
Fig. 1 is according to protection system structure chart of the present invention;
Fig. 2 protects logic diagram according to protection system of the present invention under the DC ice melting pattern;
Fig. 3 protects logic diagram according to protection system of the present invention under static reactive power compensation (SVC) pattern;
Fig. 4 is the protection Logical processing unit structured flowchart according to protection system of the present invention.
Embodiment
As shown in Figure 4, provide the specific implementation method of protection Logical processing unit.
The protection Logical processing unit mainly is made up of two digital signal processors (DSP) and a programmable logic chip (CPLD); digital signal processor 1 (DSP1) is the floating type digital signal processor, and digital signal processor 2 (DSP2) is a fixed point type digital signal processor.Digital signal processor 1 (DSP1) is mainly finished the computing function of various protection algorithms; digital signal processor 1 (DSP1) receives the data that data acquisition unit is sent here; needs according to this unit algorithm; from receiving the sampled value that buffering area extracts related channel program; the running protection algorithm; operation result is put into double-port RAM (Dual-Port Static RAM), go reading of data by interrupt mode number of notifications word signal processor 2 (DSP2).
DSP2 is by interrupting reading the data of double-port RAM (Dual-Port Static RAM), running protection logic determines algorithm.EEPROM (Electrically Erasable Programmable Read Only Memo) (EEPROM) has been expanded in the outside, is used for preserving protection definite value and mode of operation.One 232 service port has been expanded in the outside, is used to revise definite value, functions such as inquiry unit internal state.
Digital signal processor 2 (DSP2) has been expanded two controller area networks (CAN-bus Network); controller area network 1 (CAN-bus Network 1) is the inside CAN controller of digital signal processor; mainly finish and the communicating by letter of host computer; when comprising the broadcasting school of host computer; Working mode set; definite value is set; patrol and examine; reported event journal functions such as (SOE); controller area network 2 (CAN-bus Network 2) is realized by the Fieldbus Control device (SJA1000) that extends out; mainly finish and digital quantity input and output (DIDO) unit; communication between other control unit and the protection Logical processing unit; the trip command of protection Logical processing unit is issued digital quantity input and output (DIDO) unit by CAN net 2, finishes trip operation by digital quantity input and output (DIDO) unit.When breaking down, digital signal processor 2 (DSP2) can also start failure wave-recording by controller area network 2 (CAN-bus Network 2).
This processing unit has input of 16 way switch amounts and the output of 23 way switch amounts, and all are opened into the amount of leaving and all isolate through photoelectricity.Also have 12 road indicator lights simultaneously and show, be used for the operating state of display unit and the operate condition of protection.
The peripheral hardware that programmable logic chip (CPLD) is mainly two digital signal processors produces sheet choosing, signals such as control.Pps pulse per second signal (PPS) is used for the second timing of digital signal processor inside from global positioning satellite module (GPS), produces system time.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily and replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (6)
1. one kind is applied to reconfigurable static reactive-power compensation and repays/protection system of DC de-icing composite apparatus, it is characterized in that:
This system is the protection system of integrated form; comprise data acquisition process unit, protection Logical processing unit, digital quantity input and output processing unit and host computer processing unit; can work in two kinds of mode of operations of static reactive power compensation and DC ice melting; described data acquisition process unit is that all described protection Logical processing units and control unit are shared; after the sampled value of all passages gathers through coding; send to each unit by synchronous serial bus, each unit extracts the related channel program sampled value according to the needs of self.
2. reconfigurable static reactive-power compensation as claimed in claim 1 repays/protection system of DC de-icing composite apparatus, it is characterized in that:
The trip signal of all described protection Logical processing units all sends to digital quantity input and output processing unit by controller area network, finishes direct control to circuit breaker, isolation switch by described digital quantity input and output processing unit.
3. reconfigurable static reactive-power compensation as claimed in claim 2 repays/protection system of DC de-icing composite apparatus, it is characterized in that:
Described host computer processing unit have demonstration, man-machine interaction, protection definite value, the mode of operation at interface setting, patrol and examine and distant control function.
4. reconfigurable static reactive-power compensation as claimed in claim 3 repays/protection system of DC de-icing composite apparatus, it is characterized in that:
Described system also comprises local area network 1 and local area network 2; wherein said controller area network 1 is principal and subordinate's net; described host computer carries out the setting of mode of operation, protection definite value to each unit; the logout information of each unit also is uploaded to described host computer; described controller area network 2 is many major networks, comprises communication, finishes the function of tripping operation request and failure wave-recording by this net between each unit.
5. reconfigurable static reactive-power compensation as claimed in claim 4 repays/protection system of DC de-icing composite apparatus, it is characterized in that:
Described protection Logical processing unit has 16 way switch amounts inputs and the output of 23 way switch amounts, and all open into the amount of leaving all through the photoelectricity isolation, also has 12 road indicator lights, in order to the different operating state of indicating device.
6. reconfigurable static reactive-power compensation as claimed in claim 5 repays/protection system of DC de-icing composite apparatus, it is characterized in that:
Described protection Logical processing unit also has programmable logic chip, digital signal processor 1 and digital signal processor 2; described programmable logic chip is shared by described digital signal processor 1 and digital signal processor 2; produce the control and the chip selection signal of two digital signal processor peripheral hardwares; described digital signal processor 1 and digital signal processor 2 communicate by dual port RAM; and utilize the mode of interrupting to notify the other side to visit, avoid access conflict.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102235824A CN101369723B (en) | 2008-10-08 | 2008-10-08 | Protection system for reconfigurable static reactive-power compensation/DC de-icing composite apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102235824A CN101369723B (en) | 2008-10-08 | 2008-10-08 | Protection system for reconfigurable static reactive-power compensation/DC de-icing composite apparatus |
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| Publication Number | Publication Date |
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| CN101369723A true CN101369723A (en) | 2009-02-18 |
| CN101369723B CN101369723B (en) | 2011-09-28 |
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| CN2008102235824A Expired - Fee Related CN101369723B (en) | 2008-10-08 | 2008-10-08 | Protection system for reconfigurable static reactive-power compensation/DC de-icing composite apparatus |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102231512A (en) * | 2011-06-22 | 2011-11-02 | 中电普瑞科技有限公司 | Protection unit of double DSP and HPI communication series capacitor compensation device |
| CN101673951B (en) * | 2009-10-15 | 2011-11-30 | 中国电力科学研究院 | Thyristor valve triggering and monitoring system |
| CN108899852A (en) * | 2018-08-24 | 2018-11-27 | 国网湖南省电力有限公司 | A kind of intensive style DC de-icing device protection TT&C system |
| CN109857029A (en) * | 2019-02-20 | 2019-06-07 | 珠海格力电器股份有限公司 | Dual processor controlling system working method, magnetic suspension bearing monitoring system and its working method, compressor and air-conditioning |
| WO2021114417A1 (en) * | 2019-12-13 | 2021-06-17 | 浙江禾川科技股份有限公司 | Power supply system and rectifier circuit thereof |
-
2008
- 2008-10-08 CN CN2008102235824A patent/CN101369723B/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101673951B (en) * | 2009-10-15 | 2011-11-30 | 中国电力科学研究院 | Thyristor valve triggering and monitoring system |
| CN102231512A (en) * | 2011-06-22 | 2011-11-02 | 中电普瑞科技有限公司 | Protection unit of double DSP and HPI communication series capacitor compensation device |
| CN102231512B (en) * | 2011-06-22 | 2014-10-01 | 中电普瑞科技有限公司 | Protection unit of double DSP and HPI communication series capacitor compensation device |
| CN108899852A (en) * | 2018-08-24 | 2018-11-27 | 国网湖南省电力有限公司 | A kind of intensive style DC de-icing device protection TT&C system |
| CN109857029A (en) * | 2019-02-20 | 2019-06-07 | 珠海格力电器股份有限公司 | Dual processor controlling system working method, magnetic suspension bearing monitoring system and its working method, compressor and air-conditioning |
| WO2021114417A1 (en) * | 2019-12-13 | 2021-06-17 | 浙江禾川科技股份有限公司 | Power supply system and rectifier circuit thereof |
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| Publication number | Publication date |
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| CN101369723B (en) | 2011-09-28 |
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