CN206977029U - A kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil - Google Patents
A kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil Download PDFInfo
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- CN206977029U CN206977029U CN201720469318.3U CN201720469318U CN206977029U CN 206977029 U CN206977029 U CN 206977029U CN 201720469318 U CN201720469318 U CN 201720469318U CN 206977029 U CN206977029 U CN 206977029U
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Abstract
The utility model provides a kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil; for board plug type mounting structure, including backboard and power panel, switch template, master control borad, sampling plate, recording plate and communication board that plug-in type installation is carried out with backboard；Backboard is provided with some bus type slots, power panel, switch template, master control borad, sampling plate, recording plate and communication board are inserted in backboard by bus type slot, it is connected with backboard, backboard provides plant-grid connection, clock route, bus bar for all insertion plates in device, and cabinet provides mechanical support for all units in device outside collaborative device；Suitable for the differential protection of any phase shifting angle phase-shifting transformer of Multiple coil, there is very high versatility and autgmentability；Provided with independent recording unit, fault waveform data redundancy is stored, prevents that fault waveform is lost during communicating interrupt, realizes the engineer applied of the differential protection function of any phase shifting angle phase-shifting transformer of Multiple coil.
Description
Technical field
Microcomputer protective relay technical field in electrical engineering is the utility model is related to, more particularly to a kind of plug-in Multiple coil
The differential protection of any phase shifting angle phase-shifting transformer.
Background technology
High-voltage high-power frequency transformator be industrially heavy-duty motor is controlled, speed governing and the important of soft start are set
It is standby.Mainstream scheme uses the more level schemes of power unit cascade, and its input needs to configure Multiple coil phase-shifting transformer, played whole
Stream harmonic carcellation, realization provide with the electrical isolation of power network and for power cell matches the effect such as input voltage.
According to relay protection and automatic safety device technical regulation GB/T14285-2006 regulation, high-power transformer needs
Differential protection is configured as its main protection.Compared with common transformer, Multiple coil phase-shifting transformer electrical structure is special, has
Excessive amounts of secondary side winding, and there is the phase shift of non-whole hour number between winding, suitable for the differential protection of common transformer
Device scheme can not meet the differential protection requirement of Multiple coil phase-shifting transformer.Common differential protection scheme exists following
Technical problem：
1) versatility and autgmentability are poor, when the change of Multiple coil phase-shifting transformer phase shift angle and winding number change,
Required detection interface can not arbitrarily extend.
2) without special recording unit, it is impossible to fault waveform data redundancy is stored, fault wave figurate number during communicating interrupt
According to loss.
3) there is no GPS time adjustment functions, it is impossible to make device and the time precise synchronization of whole system.
In view of the above-mentioned problems, according to the characteristics of Multiple coil phase-shifting transformer and common differential protection scheme is combined, it is public
A kind of differential protection suitable for any phase shifting angle phase-shifting transformer of Multiple coil is driven.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provides a kind of any phase shifting angle phase shift of plug-in Multiple coil and become
The differential protection of depressor, using plug-in structure, suitable for the differential protection of any phase shifting angle phase-shifting transformer of Multiple coil,
With very high versatility and autgmentability；Provided with independent recording unit, fault waveform data redundancy is stored, prevented in communication
Fault waveform is lost when disconnected, realizes the engineer applied of the differential protection function of any phase shifting angle phase-shifting transformer of Multiple coil.
In order to achieve the above object, the utility model is realized using following technical scheme：
A kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil, described device are pacified for board plug type
Assembling structure, including backboard and with backboard carry out plug-in type installation power panel, switch template, master control borad, sampling plate, recording plate and
Communication board；
Described backboard is provided with some bus type slots, described power panel, switch template, master control borad, sampling plate, record
Ripple plate and communication board are inserted in backboard by bus type slot, are connected with backboard, and backboard provides for all insertion plates in device
Plant-grid connection, clock route, bus bar, and cabinet provides mechanical support for all units in device outside collaborative device；
There is independent master cpu on described switch template, master control borad, sampling plate, recording plate and communication board；
Described power panel includes dual power supply plate PW1 and PW2, and two-way redundant power supply is provided for device；
Described sampling plate includes multiple sampling plates.
Described multiple sampling plate CPU use field programmable gate array (FPGA)：Cyclone III EP3C16, every piece
Sampling plate all contains 12 road analog signalses passages, and phase-shifting transformer three phases winding at primary side is connected by analog signalses passage
Three detection current sensors and multiple secondary side three-phase windings multiple detection current sensors, sampling plate AD1, AD2,
The accumulative current sensor signals that can gather 48 road windings of AD3 and AD4.
The CPU of described recording plate uses field programmable gate array (FPGA)：Cyclone V 5CSXFC6D6, board
Upper one gigabit Ethernet mouth of configuration carries out TCP/IP Ethernet communications with host computer, to fault waveform data storage, transmission
Shown with playback, additionally it is possible to fault waveform data redundancy is stored, fault waveform loss of data when preventing communicating interrupt.
The CPU of described master control borad is using digital signal processor (DSP) and field programmable gate array (FPGA), DSP
Model：TMS320C6678, FPGA model：Arria II EP2AGX45.
The CPU of described communication board uses embeded processor (PowerPC) and field programmable gate array
(FPGA), PowerPC models：MPC8309CVMAHFCA, FPGA model：Arria II EP2AGX45, there is provided abundant pair
Outer communication interface, including RS232, RS485, USB, SD/MMC, Ethernet, CAN interface, communication board pass through TCP/
IPEthernet and man-computer interactive communication, realization device parameter configuration, device and transformer state monitoring, pass through RS485 and GPS
Pair when communicate, the time precise synchronization function of realization device and whole system relevant apparatus or equipment.
The CPU of described switch template uses field programmable gate array (FPGA)：Cyclone III EP3C16, have
16 way switch amounts input and the output of 16 way switch amounts, gather external command and quantity of state, including collection transformer lead-in circuit breaker
Isloation state information, external output order and quantity of state are closed, including export the tripping operation of transformer lead-in circuit breaker when differential protection is effective
Order.
Compared with prior art, the beneficial effects of the utility model are：
1st, the utility model proposes a kind of any phase shifting angle phase-shifting transformer of plug-in Multiple coil differential protection,
Using plug-in structure, according to winding quantity configuration sampling unit board quantity, winding phase shift angle is unrestricted, and device has
Good autgmentability and versatility, suitable for the differential protection of any phase shifting angle phase-shifting transformer of Multiple coil.
2nd, the utility model proposes a kind of any phase shifting angle phase-shifting transformer of plug-in Multiple coil differential protection,
Provided with independent recording unit, fault waveform data redundancy is stored, fault waveform loss of data when preventing communicating interrupt.
3rd, the utility model proposes a kind of any phase shifting angle phase-shifting transformer of plug-in Multiple coil differential protection,
Communication board provided with GPS time adjustment functions, device and the time precise synchronization of whole system can be made.
4th, the utility model proposes a kind of any phase shifting angle phase-shifting transformer of plug-in Multiple coil differential protection
It provided with dual redundant power supply, can be automatically switched in single power failure, ensure device reliability service.
5th, the utility model proposes a kind of any phase shifting angle phase-shifting transformer of plug-in Multiple coil differential protection
The engineer applied of the differential protection function of any phase shifting angle phase-shifting transformer of Multiple coil can be realized, control is accurate, sensitivity
With reliability height.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of any phase shifting angle phase-shifting transformer of plug-in Multiple coil differential protection dress
The system put forms schematic diagram；
Fig. 2 is a kind of differential protection structure of any phase shifting angle phase-shifting transformer of plug-in Multiple coil of the present utility model
Into schematic diagram.
Embodiment
Embodiment provided by the utility model is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1-2, the differential protection of any phase shifting angle phase-shifting transformer of a kind of plug-in Multiple coil, the dress
It is set to board plug type mounting structure, including backboard and carries out the power panel of plug-in type installation, switch template, master control borad with backboard, adopts
Model, recording plate and communication board；
Described backboard is provided with some bus type slots, described power panel, switch template, master control borad, sampling plate, record
Ripple plate and communication board are inserted in backboard by bus type slot, are connected with backboard, and backboard provides for all insertion plates in device
Plant-grid connection, clock route, bus bar, and cabinet provides mechanical support for all units in device outside collaborative device；
There is independent master cpu on described switch template, master control borad, sampling plate, recording plate and communication board；
Described power panel includes dual power supply plate PW1 and PW2, and two-way redundant power supply is provided for device；
Described sampling plate includes multiple sampling plates.
Described multiple sampling plate CPU use field programmable gate array (FPGA)：Cyclone III EP3C16, every piece
Sampling plate all contains 12 road analog signalses passages, and phase-shifting transformer three phases winding at primary side is connected by analog signalses passage
Three detection current sensors and multiple secondary side three-phase windings multiple detection current sensors, sampling plate AD1, AD2,
The accumulative current sensor signals that can gather 48 road windings of AD3 and AD4.
The CPU of described recording plate uses field programmable gate array (FPGA)：Cyclone V 5CSXFC6D6, board
Upper one gigabit Ethernet mouth of configuration carries out TCP/IP Ethernet communications with host computer, to fault waveform data storage, transmission
Shown with playback, additionally it is possible to fault waveform data redundancy is stored, fault waveform loss of data when preventing communicating interrupt.
The CPU of described master control borad is using digital signal processor (DSP) and field programmable gate array (FPGA), DSP
Model：TMS320C6678, FPGA model：Arria II EP2AGX45, mainly it is responsible for scheduling, the data fortune of all units
Calculate processing and transmission etc..
The CPU of described communication board uses embeded processor (PowerPC) and field programmable gate array
(FPGA), PowerPC models：MPC8309CVMAHFCA, FPGA model：Arria II EP2AGX45, there is provided abundant pair
Outer communication interface, including RS232, RS485, USB, SD/MMC, Ethernet, CAN interface, communication board pass through TCP/
IPEthernet and man-computer interactive communication, realization device parameter configuration, device and transformer state monitoring, pass through RS485 and GPS
Pair when communicate, the time precise synchronization function of realization device and whole system relevant apparatus or equipment.
The CPU of described switch template uses field programmable gate array (FPGA)：Cyclone III EP3C16, have
16 way switch amounts input and the output of 16 way switch amounts, gather external command and quantity of state, including collection transformer lead-in circuit breaker
Isloation state information, external output order and quantity of state are closed, including export the tripping operation of transformer lead-in circuit breaker when differential protection is effective
Order.
Embodiment 1：
As shown in figure 1, Multiple coil phase-shifting transformer primary side includes 1 group of winding, secondary side includes 12 groups of windings.Implement real
Load number n is also 12 in example.Detect current sensor and be responsible for collection transformer primary side, each winding current of secondary side in real time,
13 groups of windings altogether, every group of phase of winding 3, i.e. transformer primary side, secondary side amount to 39 road winding currents, then set in the present embodiment
4 pieces of sampling plates are put, it is possible to provide 48 road sample rate current interfaces, meet sampling request；
Device gathers each winding current of transformer primary side, secondary side in real time, and by master control borad calculation process after, judge
Whether meet differential protection operation condition, if meeting operation condition, it is corresponding disconnected that separating brake order driving is exported by switching value unit
Road device tripping operation, realizes tranformer protection.
Above example is implemented under premised on technical solutions of the utility model, gives detailed embodiment
With specific operating process, but the scope of protection of the utility model is not limited to the above embodiments.Side used in above-described embodiment
Method is conventional method unless otherwise instructed.
Claims (6)
- A kind of 1. differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil, it is characterised in that described device For board plug type mounting structure, including backboard and carry out the power panel of plug-in type installation, switch template, master control borad, sampling with backboard Plate, recording plate and communication board；Described backboard is provided with some bus type slots, described power panel, switch template, master control borad, sampling plate, recording plate Inserted in backboard by bus type slot with communication board, be connected with backboard, backboard provides power supply for all insertion plates in device Access, clock route, bus bar, and cabinet provides mechanical support for all units in device outside collaborative device；There is independent master cpu on described switch template, master control borad, sampling plate, recording plate and communication board；Described power panel includes dual power supply plate PW1 and PW2, and two-way redundant power supply is provided for device；Described sampling plate includes multiple sampling plates.
- 2. a kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil according to claim 1, Characterized in that, described multiple sampling plate CPU use on-site programmable gate array FPGA：Cyclone III EP3C16, often Block sampling plate all contains 12 road analog signalses passages, by analog signalses passage connect phase-shifting transformer primary side three-phase around Three detection current sensors of group and multiple detection current sensors of multiple secondary side three-phase windings, sampling plate AD1, AD2, The accumulative current sensor signals that can gather 48 road windings of AD3 and AD4.
- 3. a kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil according to claim 1, Characterized in that, the CPU of described recording plate uses on-site programmable gate array FPGA：Cyclone V 5CSXFC6D6, board Upper one gigabit Ethernet mouth of configuration carries out TCP/IP Ethernet communications with host computer, to fault waveform data storage, transmission Shown with playback, additionally it is possible to fault waveform data redundancy is stored, fault waveform loss of data when preventing communicating interrupt.
- 4. a kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil according to claim 1, Characterized in that, the CPU of described master control borad uses digital signal processor DSP and on-site programmable gate array FPGA, DSP types Number：TMS320C6678, FPGA model：Arria II EP2AGX45.
- 5. a kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil according to claim 1, Characterized in that, the CPU of described communication board uses embeded processor PowerPC and field programmable gate array FPGA, PowerPC model：MPC8309CVMAHFCA, FPGA model：Arria II EP2AGX45, there is provided abundant is external Communication interface, including RS232, RS485, USB, SD/MMC, Ethernet, CAN interface, communication board pass through TCP/IP Ethernet and man-computer interactive communication, realization device parameter configuration, device and transformer state monitoring, pass through RS485 and GPS couples When communicate, the time precise synchronization function of realization device and whole system relevant apparatus or equipment.
- 6. a kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil according to claim 1, Characterized in that, the CPU of described switch template uses on-site programmable gate array FPGA：Cyclone III EP3C16, tool There are the input of 16 way switch amounts and the output of 16 way switch amounts, gather external command and quantity of state, including the inlet wire open circuit of collection transformer Device closes isloation state information, external output order and quantity of state, including exports transformer lead-in circuit breaker when differential protection is effective and jump Lock order.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469318.3U CN206977029U (en) | 2017-04-28 | 2017-04-28 | A kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720469318.3U CN206977029U (en) | 2017-04-28 | 2017-04-28 | A kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil |
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| Publication Number | Publication Date |
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| CN206977029U true CN206977029U (en) | 2018-02-06 |
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| CN201720469318.3U Active CN206977029U (en) | 2017-04-28 | 2017-04-28 | A kind of differential protection of any phase shifting angle phase-shifting transformer of plug-in Multiple coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013853A (en) * | 2021-03-03 | 2021-06-22 | 贵州电网有限责任公司 | Differential current calculation method considering phase-shifting transformer to be connected to power transmission line |
-
2017
- 2017-04-28 CN CN201720469318.3U patent/CN206977029U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113013853A (en) * | 2021-03-03 | 2021-06-22 | 贵州电网有限责任公司 | Differential current calculation method considering phase-shifting transformer to be connected to power transmission line |
| CN113013853B (en) * | 2021-03-03 | 2023-06-23 | 贵州电网有限责任公司 | Differential current calculation method considering phase-shifting transformer access to power transmission line |
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Address after: 114000 212 Yue Ling Road, Anshan, Liaoning Patentee after: Rongxin Huike Electric Co.,Ltd. Address before: 114000 212 Yue Ling Road, Anshan, Liaoning Patentee before: RONGXIN HUIKE ELECTRIC TECHNOLOGY Co.,Ltd. |