CN103929246A - Working method of optical path switching interface mechanism for optical fiber channel test of relay protection device - Google Patents
Working method of optical path switching interface mechanism for optical fiber channel test of relay protection device Download PDFInfo
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Abstract
The invention relates to a working method of an optical path switching interface mechanism for an optical fiber channel test of a relay protection device. According to the optical path switching interface mechanism, the power source end of a control module is connected with a control power source, the input end of the control module is connected with a button change-over switch, and the output end of the control module is connected with a driver module; an optical path switching module comprises two optomagnetic switches, four transmitting optical fiber interfaces and four receiving optical fiber interfaces, wherein the output end of the driver module is connected with the control ends of the two optomagnetic switches, and the input ends and the output ends of the two optomagnetic switches are connected with the corresponding transmitting optical fiber interfaces and the corresponding receiving optical fiber interfaces. The control module provides a control signal corresponding to the connected optical path switching module, a test instrument can be connected with the relay protection device or an optical power meter or an optical attenuator through the optical path switching interface mechanism, then the driver module drives the optical path switching module to carry out optical path switching of the interfaces, and therefore the normal running state and the testing state of a protection test and the optical fiber channel test can be achieved.
Description
The application is that application number is: 201010502186.2; invention and created name is the optical path switching interface mechanism for fiber channel test > > of < < protective relaying device, and the applying date is: the dividing an application of the application for a patent for invention on September 29th, 2010.
Technical field
The present invention relates to a kind of method of work of optical path switching interface mechanism for fiber channel test of protective relaying device, belong to protective relaying device technical field.
Background technology
Secondary device in electric power system is for the work of primary equipment being monitored, control, regulates, protected and for operation, attendant provide operating condition or produce the required low voltage electrical equipment of command signal, and relaying protection mechanism is important secondary loop in power system equipment.Along with the progressively popularization of intelligent substation and intelligent grid, its traditional cable communication mode is replaced by optical fiber and digital communication mode.The protection of 220kV and above optical-fibre channel is in protection verification test and while measuring luminous power; need frequently fiber cable joint to be mounted and dismounted from protective relaying device; therefore be easy to cause the wearing and tearing of optical cable interface and optical fiber interface contact-making surface attenuation to increase; thereby affect the accuracy of protective relaying device verification; even, because optical cable interface damages, bring hidden danger to the safe and reliable operation of power circuit main protection.
And the verification of protector revise, especially optical-fibre channel that current optical fiber protecting equipment both domestic and external moves for scene not yet has standard and perfect checking process.
Summary of the invention
It is a kind of in the optical fiber interface situation without dismounting protective relaying device that object of the present invention provides; light path by many interfaces is switched, and can complete the method for work of optical path switching interface mechanism for fiber channel test of the protective relaying device of protection test and optical-fibre channel test job.
Giving invention is that the technical scheme achieving the above object is: the method for work that a kind of optical path switching interface mechanism for fiber channel test of protective relaying device is provided, described optical path switching interface mechanism for fiber channel test comprises: hood and be arranged on the control module in hood, driver module and light path handover module, described control module is complicated programmable logic device, the power end of control module is connected with control power supply, the input of control module be arranged on running status on hood panel and the knob diverter switch of test mode and be connected, the output of control module is connected with driver module, driver module consists of Darlington transistor, described light path handover module comprises two optomagnetic switches, four send optical fiber interface and four reception optical fiber interfaces, the output of driver module is connected with the control end of two optomagnetic switches of light path handover module respectively, optomagnetic switch is selected 2 * 2A/D magneto-optic shutter, two inputs of the first optomagnetic K switch l meet respectively the first transmission optical fiber interface TX1 and the 3rd and send optical fiber interface TX3, two outputs of the first optomagnetic K switch l meet respectively the second transmission optical fiber interface TX2 and the 4th and send optical fiber interface TX4, two inputs of the second optomagnetic K switch 2 meet respectively the second reception optical fiber interface RX2 and the 3rd and receive optical fiber interface RX3, two outputs of the second optomagnetic K switch 2 meet respectively the first reception optical fiber interface RX1 and the 4th and receive optical fiber interface RX3,
The method of work of the optical path switching interface mechanism for fiber channel test of this protective relaying device comprises: by two ends, the optical fiber with joint is connected with the optical fiber interface on protective relaying device and light power meter or Optical attenuator with receiving optical fiber interface during use, respectively to send optical fiber interface;
When pressing knob diverter switch and enter running status, signal is through the transmission anode TXa of this side of protective relaying device protection, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l and the first output OUT1, second sends after optical fiber interface TX2, the reception negative terminal RXb of access protective relaying device offside protection, transmission negative terminal TXb through offside protection, second receives optical fiber interface RX2, enter the second input IN2 of the second optomagnetic K switch 2, the first output OUT1, by the first reception optical fiber interface RX1, enter the reception anode RXa of this side protection, now protective relaying device enters normal operation,
When pressing knob diverter switch and enter test mode, switching-over light path passage, by external short fiber, the 4th transmission optical fiber interface TX4 and the 3rd being received to optical fiber interface RX3 is connected, now signal is through the transmission anode TXa of this side of protective relaying device protection, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l, the second output OUT2, the 4th sends optical fiber interface TX4, the 3rd receives optical fiber interface RX3, enter the first input end IN1 of the second optomagnetic K switch 2, again through the first output OUT1, by the first reception optical fiber interface RX1, enter the reception anode RXa that this side is protected a side, carry out the protection of this side from ring,
When pressing knob diverter switch and enter test mode, switching-over light path passage, its the 4th transmission optical fiber interface TX4 connects light power meter, now signal protects the transmission anode TXa, first of a side to send the second input IN2 of optical fiber interface TX1, the first optomagnetic K switch l through this side of protective relaying device, through the second output OUT2, the 4th, send optical fiber interface TX4 and light power meter again, can carry out the test of this side protection luminous power;
When pressing knob diverter switch and enter test mode, switching-over light path passage, the 4th receives optical fiber interface RX4 connects light power meter, now signal receives the second input IN2 of optical fiber interface RX2, the second optomagnetic K switch 2, slowly through the second output OUT2, the 4th, receives optical fiber interface RX4 and light power meter through the transmission negative terminal TXb, second of protective relaying device offside protection, carries out the test of offside protection luminous power;
When pressing knob diverter switch and enter test mode, switching-over light path passage, Optical attenuator is connected on the 4th and receives between optical fiber interface RX4 and the 3rd reception optical fiber interface RX3, now signal is protected the transmission negative terminal TXb of a side through the offside of protective relaying device, second receives optical fiber interface RX2, the second input IN2 of the second optomagnetic K switch 2, again through the second output OUT2, the 4th receives optical fiber interface RX4, Optical attenuator, the 3rd receives optical fiber interface RX3, first input end IN1 through the second optomagnetic K switch 2, the first output OUT1, finally by the first reception optical fiber interface RX1, enter the reception anode RXa of this side protection, carry out the test of passage surplus.
Apply switching-over light path interface agency of the present invention and comprise control module, driver module and light path handover module, control module is CPLD, cheap, powerful, and the customization arbitrarily as requested of control logic cocoa.Light path handover module of the present invention adopts magneto-optic shutter with transmission optical fiber interface and receives optical fiber interface and is connected, realizing passive light switches, the high speed that is conducive to light path is switched, and magneto-optic shutter has, and time response is fast, switching time is short, loss is little, the change of light path character is little and control simple feature, by control module, provide the control signal of the light path handover module of corresponding conducting, then the light path that drives light path handover module to carry out many interfaces by driver module is switched.The present invention is due to the fiber cable joint without on dismounting protective relaying device; by changeable optical-path interface mechanism, can be connected with protective relaying device, light power meter or Optical attenuator; through light path, switch; can enter normal running status and enter protection test and the test mode of optical-fibre channel test; the problem that the loose contact problem that has solved optical fiber splice frequent dismounting on protective relaying device and caused and optical fiber interface damage, has important function for improving scene protection verification and maintenance levels.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiments of the invention are done further in detail carefully to state.
Figure l is structural representation of the present invention.
Fig. 2 is theory diagram of the present invention.
Fig. 3 is the electrical schematic diagram that light path handover module of the present invention is connected with tested protection with the protection of this side.
Wherein: 1-hood, 2-optical fiber interface indicator light group, 3-knob diverter switch, 4-status indicator lamp, 5-controls power supply, 6-control module, 7-driver module, 8-driving power, 9-light path handover module.
Embodiment
See shown in figure l～3, the optical path switching interface mechanism for fiber channel test of the protective relaying device of the present embodiment, comprise hood l and be arranged on the control module 6 in hood l, driver module 7 and light path handover module 9, control module 6 of the present invention is complicated programmable logic device, this complicated programmable logic device adopts altera corp to manufacture, switching signal by control module 6 to provide the light path handover module 9 of corresponding conducting to input, the power end of control module 6 is connected with control power supply 5, this drawing power supply 5 is taked DC24V, its power consumption is the smaller the better, the input of control module 6 with running status on hood l panel and the knob diverter switch 3 of test mode be installed be connected, this knob diverter switch 3 is to press at each, between " normal condition " and " test mode ", switch, by control module 6, gather the input signal of the knob diverter switch 3 on panel, after logical transition, by driver module 7, control the conducting of two magneto-optic shutters or close, the object of switching to reach light path.As shown in Figure 2, the output of control module 6 of the present invention is connected with driver module 7, driver module 7 consists of Darlington transistor, can adopt conventional one-level NPN Darlington triode, make the base stage of Darlington triode connect the output of control module 6, collector and emitter is connected with the input of two optomagnetic switches of light path handover module 9 respectively, and control module 6 drives the action of two magneto-optic shutters, the external independent driving power 8 of driver module 7 of the present invention by driver module 7.See Fig. 2, shown in 3, light path handover module 9 of the present invention comprises at least two optomagnetic switches, four above transmission optical fiber interfaces and four above reception optical fiber interfaces, this control module 6, driver module 7 and two optomagnetic switches are all welded on circuit board, circuit board is arranged in hood l by insulation board or insulating barrier, the optical fiber interface that respectively sends of the present invention can adopt a PC/FC optical fiber splice with reception optical fiber interface, and be separately fixed at the both sides of hood l, optical fiber by two ends with joint is connected with the optical fiber interface on protective relaying device and light power meter or Optical attenuator, reach the object of protection test and optical-fibre channel test job.As shown in Figure 2, the top of hood l of the present invention is respectively equipped with power interface, serial communication interface and locking interface etc., the output of driver module 7 is connected with the control end of two optomagnetic switches of light path handover module 9 respectively, to control respectively the action of each optomagnetic switch, optomagnetic switch can be selected 2 * 2A/D magneto-optic shutter, two inputs of the first optomagnetic K switch l meet respectively the first transmission optical fiber interface TX1 and the 3rd and send optical fiber interface TX3, and two outputs of the first optomagnetic K switch l meet respectively the second transmission optical fiber interface TX2 and the 4th and send optical fiber interface TX4; Two inputs of the second optomagnetic K switch 2 meet respectively the second reception optical fiber interface RX2 and the 3rd and receive optical fiber interface RX3; two outputs of the second optomagnetic K switch 2 meet respectively the first reception optical fiber interface RX1 and the 3rd and receive optical fiber interface RX3; during use; the first transmission optical fiber interface TX1 and first is received to the transmission anode TXa of optical fiber interface RX1 and the protection of this side of protective relaying device and receives anode RXa is connected, second receives the transmission negative terminal TXb that optical fiber interface RX2 and the second transmission optical fiber interface TX2 protect with offside is connected with reception negative terminal RXb.
See shown in figure l; the optical path switching interface mechanism for fiber channel test of the protective relaying device of the present embodiment is positioned at and respectively sends optical fiber interface and each and receive optical fiber interface place and be separately installed with each optical fiber interface indicator light at hood l panel; and the output of control module 6 is connected with each optical fiber interface indicator light group 2; when completing light path switching, control module 6 is controlled corresponding optical fiber interface indicator light and is shown.On same hood l panel, the status indicator lamp 4 of running status and the status indicator lamp 4 of test mode are also installed, the output of same control module 6 is connected with each status indicator lamp 4, pressing while switching between " normal condition " and " test mode ", by status indicator lamp 4, showing the state of input signal.
As shown in Figure 3, when the optical path switching interface mechanism for fiber channel test of the protective relaying device of the present embodiment is worked, when pressing knob diverter switch 3 and enter running status, signal is through the transmission anode TXa of this side of protective relaying device protection, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l and the first output OUT1, second sends after optical fiber interface TX2, the reception negative terminal RXb of access protective relaying device offside protection, transmission negative terminal TXb through offside protection, second receives optical fiber interface RX2, enter the second input IN2 of the second optomagnetic K switch 2, the first output OUT1, by the first reception optical fiber interface RX1, enter the reception anode RXa of this side protection, now protective relaying device enters normal operation.
As shown in Figure 3, when the optical path switching interface mechanism for fiber channel test work of the protective relaying device of the present embodiment is ashamed, when pressing knob diverter switch 3 and enter test mode, switching-over light path passage, by external short fiber, the 4th transmission optical fiber interface TX4 and the 3rd being received to optical fiber interface RX3 is connected, now signal is through the transmission anode TXa of this side of protective relaying device protection, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l, the second output OUT2, the 4th sends optical fiber interface TX4, the 3rd receives optical fiber interface RX3, enter the first input end IN1 of the second optomagnetic K switch 2, again through the first output OUT1, by the first reception optical fiber interface RX1, enter the reception anode RXa that this side is protected a side, carry out the protection of this side from ring.
As shown in Figure 3; when the optical path switching interface mechanism for fiber channel test of the protective relaying device of the present embodiment is worked; when pressing knob diverter switch 3 and enter test mode; switching-over light path passage; its the 4th transmission optical fiber interface TX4 connects light power meter; now signal protects the transmission anode TXa, first of a side to send the second input IN2 of optical fiber interface TX1, the first optomagnetic K switch l through this side of protective relaying device; through the second output OUT2, the 4th, send optical fiber interface TX4 and light power meter again, can carry out the test of this side protection luminous power.
As shown in Figure 3; when the optical path switching interface mechanism for fiber channel test of the protective relaying device of the present embodiment is worked; when pressing knob diverter switch 3 and enter test mode; switching-over light path passage; the 4th receives optical fiber interface RX4 connects light power meter; now signal receives the second input IN2 of optical fiber interface RX2, the second optomagnetic K switch 2, slowly through the second output OUT2, the 4th, receives optical fiber interface RX4 and light power meter through the transmission negative terminal TXb, second of protective relaying device offside protection, carries out the test of offside protection luminous power.
As shown in Figure 3, when the optical path switching interface mechanism for fiber channel test of the protective relaying device of the present embodiment is worked, when pressing knob diverter switch 3 and enter test mode, switching-over light path passage, Optical attenuator is connected on the 4th and receives between optical fiber interface RX4 and the 3rd reception optical fiber interface RX3, now signal is protected the transmission negative terminal TXb of a side through the offside of protective relaying device, second receives optical fiber interface RX2, the second input IN2 of the second optomagnetic K switch 2, again through the second output OUT2, the 4th receives optical fiber interface RX4, Optical attenuator, the 3rd receives optical fiber interface RX3, first input end IN1 through the second optomagnetic K switch 2, the first output OUT1, finally by the first reception optical fiber interface RX1, enter the reception anode RXa of this side protection, carry out the test of passage surplus.
Claims (1)
1. the method for work of the optical path switching interface mechanism for fiber channel test of a protective relaying device, it is characterized in that described optical path switching interface mechanism for fiber channel test comprises: hood and be arranged on the control module in hood, driver module and light path handover module, described control module is complicated programmable logic device, the power end of control module is connected with control power supply, the input of control module be arranged on running status on hood panel and the knob diverter switch of test mode and be connected, the output of control module is connected with driver module, driver module consists of Darlington transistor, described light path handover module comprises two optomagnetic switches, four send optical fiber interface and four reception optical fiber interfaces, the output of driver module is connected with the control end of two optomagnetic switches of light path handover module respectively, optomagnetic switch is selected 2 * 2A/D magneto-optic shutter, two inputs of the first optomagnetic K switch l meet respectively the first transmission optical fiber interface TX1 and the 3rd and send optical fiber interface TX3, two outputs of the first optomagnetic K switch l meet respectively the second transmission optical fiber interface TX2 and the 4th and send optical fiber interface TX4, two inputs of the second optomagnetic K switch 2 meet respectively the second reception optical fiber interface RX2 and the 3rd and receive optical fiber interface RX3, two outputs of the second optomagnetic K switch 2 meet respectively the first reception optical fiber interface RX1 and the 4th and receive optical fiber interface RX3,
The method of work of the optical path switching interface mechanism for fiber channel test of this protective relaying device comprises: by two ends, the optical fiber with joint is connected with the optical fiber interface on protective relaying device and light power meter or Optical attenuator with receiving optical fiber interface during use, respectively to send optical fiber interface;
When pressing knob diverter switch and enter running status, signal is through the transmission anode TXa of this side of protective relaying device protection, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l and the first output OUT1, second sends after optical fiber interface TX2, the reception negative terminal RXb of access protective relaying device offside protection, transmission negative terminal TXb through offside protection, second receives optical fiber interface RX2, enter the second input IN2 of the second optomagnetic K switch 2, the first output OUT1, by the first reception optical fiber interface RX1, enter the reception anode RXa of this side protection, now protective relaying device enters normal operation,
When pressing knob diverter switch and enter test mode, switching-over light path passage, by external short fiber, the 4th transmission optical fiber interface TX4 and the 3rd being received to optical fiber interface RX3 is connected, now signal is through the transmission anode TXa of this side of protective relaying device protection, first sends optical fiber interface TX1, the second input IN2 of the first optomagnetic K switch l, the second output OUT2, the 4th sends optical fiber interface TX4, the 3rd receives optical fiber interface RX3, enter the first input end IN1 of the second optomagnetic K switch 2, again through the first output OUT1, by the first reception optical fiber interface RX1, enter the reception anode RXa that this side is protected a side, carry out the protection of this side from ring,
When pressing knob diverter switch and enter test mode, switching-over light path passage, its the 4th transmission optical fiber interface TX4 connects light power meter, now signal protects the transmission anode TXa, first of a side to send the second input IN2 of optical fiber interface TX1, the first optomagnetic K switch l through this side of protective relaying device, through the second output OUT2, the 4th, send optical fiber interface TX4 and light power meter again, can carry out the test of this side protection luminous power;
When pressing knob diverter switch and enter test mode, switching-over light path passage, the 4th receives optical fiber interface RX4 connects light power meter, now signal receives the second input IN2 of optical fiber interface RX2, the second optomagnetic K switch 2, slowly through the second output OUT2, the 4th, receives optical fiber interface RX4 and light power meter through the transmission negative terminal TXb, second of protective relaying device offside protection, carries out the test of offside protection luminous power;
When pressing knob diverter switch and enter test mode, switching-over light path passage, Optical attenuator is connected on the 4th and receives between optical fiber interface RX4 and the 3rd reception optical fiber interface RX3, now signal is protected the transmission negative terminal TXb of a side through the offside of protective relaying device, second receives optical fiber interface RX2, the second input IN2 of the second optomagnetic K switch 2, again through the second output OUT2, the 4th receives optical fiber interface RX4, Optical attenuator, the 3rd receives optical fiber interface RX3, first input end IN1 through the second optomagnetic K switch 2, the first output OUT1, finally by the first reception optical fiber interface RX1, enter the reception anode RXa of this side protection, carry out the test of passage surplus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132505.3A CN103929246B (en) | 2010-09-29 | 2010-09-29 | The method of work of switching-over light path interface agency for the optical-fibre channel of protective relaying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410132505.3A CN103929246B (en) | 2010-09-29 | 2010-09-29 | The method of work of switching-over light path interface agency for the optical-fibre channel of protective relaying device |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010502186.2A Division CN101969341B (en) | 2010-09-29 | 2010-09-29 | Optical path switching interface mechanism for fiber channel test of relay protection device |
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| CN103929246A true CN103929246A (en) | 2014-07-16 |
| CN103929246B CN103929246B (en) | 2016-06-15 |
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Cited By (2)
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| CN113391098A (en) * | 2021-06-15 | 2021-09-14 | 贵州电网有限责任公司 | Optical difference protection coaxial cable channel control device and control method thereof |
| CN114339485A (en) * | 2021-12-01 | 2022-04-12 | 合肥科威尔电源系统股份有限公司 | Circuit suitable for multi-machine optical fiber communication |
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Cited By (4)
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| CN114339485B (en) * | 2021-12-01 | 2023-08-22 | 科威尔技术股份有限公司 | Circuit suitable for multi-machine optical fiber communication |
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