CN105680446A - Device and method for preventing tripping during power switching of coal feeder - Google Patents
Device and method for preventing tripping during power switching of coal feeder Download PDFInfo
- Publication number
- CN105680446A CN105680446A CN201610168959.5A CN201610168959A CN105680446A CN 105680446 A CN105680446 A CN 105680446A CN 201610168959 A CN201610168959 A CN 201610168959A CN 105680446 A CN105680446 A CN 105680446A
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- feeder
- operating instruction
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- feedback
- stopping
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to equipment optimization, and discloses a device for preventing tripping during power switching of a coal feeder. The device comprises a starting command module (1), an operation command output module (3), an operation feedback receiving module (4) and a logic module (5), wherein the starting command module (1) is used for sending out a starting short pulse to the operation command output module (3) so that the operation command output module (3) outputs an operation command to the coal feeder; the operation feedback receiving module (4) is used for receiving the feedback of the coal feeder; and the logic module (5) is used for delaying first time when the stopping feedback of the coal feeder is received by the operation feedback receiving module (4) and judging whether to control the operation command output module (3) to stop outputting the operation command according to the feedback of the coal feeder after the first time is delayed. According to the device and the method, self-starting function of the coal feeder can be realized during power switching at an inlet of the coal feeder under the precondition of guaranteeing equipment safety.
Description
Technical field
The present invention relates to equipment optimization, in particular it relates to a kind of feeder power supply switch and anti-jump brake gear and feeder power supply switch and anti-jump lock method.
Background technology
Feeder electric cabinet electrical source of power and the control same service entrance switch of power sharing, converter electrical source of power is directly fed by service entrance switch. When feeder entrance power supply occurs that abnormal switching causes feeder instantaneous power failure, the control power supply of feeder also can momentary loss, and feeder feedback of status relay is by controlling power drives, gives the feedback of status of DCS system change thus result in feeder.
The hardware address corresponding to DCM logic function block of feeder only employs three signals: open instruction, run feedback, stop feedback. Opening instruction is long letter number, namely opens instruction feeder and starts, and stops without opening instruction feeder. When feeder is properly functioning; if DCS instruction does not change (namely stopping operation and DCS protection act without operations staff); and feeder trips on the spot; namely run into feeder entrance power supply said before and occur when exception switches; feeder is given the feedback of status of DCS system and is changed and (run feedback 1 → 0; stop feedback 0 → 1); DCM functional device no longer exports any instruction; namely now feeder opens commands relays loss of excitation, is namely equivalent to send out stop instruction to feeder. Even if now feeder has the words of instantaneous power-off self-starting function and also cannot start. Therefore, feeder entrance power failure handoff procedure can cause feeder tripping operation to start. At present, feeder producer and DCS producer all cannot solve this problem on the basis in existing control loop.
Summary of the invention
It is an object of the invention to provide a kind of feeder power supply switch and anti-jump brake gear and a kind of feeder power supply switch and anti-jump lock method, this feeder power supply switch and anti-jump brake gear and feeder power supply switch and anti-jump lock method under the premise ensureing equipment safety, can realize feeder self-starting function when feeder entrance power supply switches.
To achieve these goals, the present invention provides a kind of feeder power supply switch and anti-jump brake gear, this device includes: opens instruction module, operating instruction output module, run feedback reception module and logic module, wherein, the described instruction module that opens is for sending startup short pulse punching to described operating instruction output module, so that described operating instruction output module output operating instruction is to feeder; Described operation feedback reception module is for receiving the feedback of described feeder; And logic module is for receiving stopping the feedback delay slow very first time of described feeder in described operation feedback reception module, and feedback according to described feeder judges whether that controlling described operating instruction output module stops output operating instruction after postponing the very first time.
The present invention also provides for a kind of feeder power supply switch and anti-jump lock method, and the method includes: send startup short pulse punching, to export operating instruction to feeder; Receive the feedback of described feeder; And receiving stopping the feedback delay slow very first time of described feeder, and judge whether to stop output operating instruction postponing after the very first time feedback according to described feeder.
Pass through technique scheme, adopt feeder power supply switch and anti-jump brake gear provided by the invention and feeder power supply switch and anti-jump lock method, when starting, open instruction module to respond to users action and send short pulse and rush to operating instruction output module, operating instruction output module is made to continuously send out operating instruction to feeder, run feedback reception module and receive the operation feedback of feeder, when receiving when stopping feeding back of feeder, logic module trigger, after the time delay very first time, if running feedback reception module still receive when stopping feeding back of feeder, logic module controls operating instruction output module and stops output operating instruction, if operation feedback reception module no longer receives when stopping feeding back, logic module is left intact. this feeder power supply switch and anti-jump brake gear and feeder power supply switch and anti-jump lock method under the premise ensureing equipment safety, can realize feeder self-starting function when feeder entrance power supply switches.
Other features and advantages of the present invention will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and constitutes the part of description, is used for explaining the present invention, but is not intended that limitation of the present invention together with detailed description below. In the accompanying drawings:
Fig. 1 is the structural representation of feeder power supply switch and anti-jump brake gear provided by the invention; And
Fig. 2 is the flow chart of feeder power supply switch and anti-jump lock method provided by the invention.
Description of reference numerals
1 opens instruction module 2 stop instruction module
3 operating instruction output modules 4 run feedback reception module
5 logic modules.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail. It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains the present invention, it is not limited to the present invention.
Fig. 1 is the structural representation of feeder power supply switch and anti-jump brake gear provided by the invention. As shown in Figure 1, the present invention provides a kind of feeder power supply switch and anti-jump brake gear, this device includes: opens instruction module 1, operating instruction output module 3, run feedback reception module 4 and logic module 5, wherein, the described instruction module 1 that opens is for sending startup short pulse punching to described operating instruction output module 3, so that described operating instruction output module 3 exports operating instruction to feeder; Described operation feedback reception module 4 is for receiving the feedback of described feeder; And logic module 5 is for receiving stopping the feedback delay slow very first time of described feeder in described operation feedback reception module 4, and feedback according to described feeder judges whether that controlling described operating instruction output module 3 stops output operating instruction after postponing the very first time.
Feedback according to described feeder judges whether that controlling described operating instruction output module 3 stopping output operating instruction includes: still receiving when stopping feeding back of described feeder in described operation feedback reception module 4, described logic module 5 controls described operating instruction output module 3 and stops exporting described operating instruction.
Feedback according to described feeder judges whether that controlling described operating instruction output module 3 stopping output operating instruction also includes: no longer receiving when stopping feeding back of described feeder in described operation feedback reception module 4, described operating instruction output module 3 continues to export described operating instruction and makes described feeder again properly functioning.
Proving through a large amount of authentic experiments, if feeder fault-free, whether feeder starts and operation depends on whether to receive operating instruction. Therefore, after feeder power supply switches, as long as can continue to export operating instruction to feeder to ensure that feeder self-starting. In prior art, for security consideration, as long as feeder carries out stopping feedback, control system will stop sending operating instruction. But the stopping of feeder feeds back and is likely due to the feeder that power supply switching causes and controls the power supply short time and lose, and after power supply switches, feeder need nonetheless remain for continuing to run with, but has not now received operating instruction, causes that feeder can not self-starting again.
In the present invention, staff presses startup button, open instruction module 1 and send short pulse punching to operating instruction output module 3, operating instruction output module 3 will continue to export operating instruction to feeder, even if feeder carries out stopping feedback, operating instruction output module 3 is without stopping output operating instruction, and to ensure after power supply switches, feeder can rely on the operating instruction self-starting received from operating instruction output module 3. additionally, same in order to ensure safety, run feedback reception module 4 receive feeder stop feedback after, logic module 5 can postpone the very first time, and (wherein the very first time depends on the speed that power supply switches, the present invention is preferably 3 seconds, but do not limit), complete to ensure power supply switching, after postponing the very first time, if run feedback reception module 4 still receive feeder stop feedback, illustrate that this stops feeding back and be not due to what power supply switching caused, therefore logic module 5 can control operating instruction output module 3 and stop output operating instruction (or being called that control operating instruction output module 3 resets). if after postponing the very first time, run feedback reception module 4 no longer receive feeder stop feedback, illustrate that power supply has switched complete, logic module 5 will be left intact, ensure that operating instruction output module 3 continues to put out operating instruction to feeder, making feeder self-starting again, after power supply switches, the rotating speed of feeder is identical with the rotating speed before power supply switching.
It addition, this device also includes: stop instruction module 2, it is used for sending stopping short pulse punching to described operating instruction output module 3, so that described operating instruction output module 3 stops exporting described operating instruction.
Except as described above can be automatically stopped except operating instruction output module 3 exports operating instruction, it is also possible to manually stop. Described operating instruction output module 3 send operating instruction to feeder after, if feeder starts unsuccessful or is not desired to allow feeder run again, staff can press stop button, stop instruction module 2 can send stopping short pulse and rush to operating instruction output module 3, operating instruction output module 3 is made to reset, to stop output operating instruction.
Fig. 2 is the flow chart of feeder power supply switch and anti-jump lock method provided by the invention. As in figure 2 it is shown, a kind of feeder power supply switch and anti-jump lock method, the method includes: send startup short pulse punching, to export operating instruction to feeder; Receive the feedback of described feeder; And receiving stopping the feedback delay slow very first time of described feeder, and judge whether to stop output operating instruction postponing after the very first time feedback according to described feeder.
Feedback according to described feeder judges whether that stopping output operating instruction includes: when still receiving when stopping feeding back of described feeder, stop exporting described operating instruction.
Feedback according to described feeder judges whether that stopping output operating instruction also includes: when no longer receiving when stopping feeding back of described feeder, continues to export described operating instruction and makes described feeder again properly functioning.
In the present invention, staff presses startup button, sends startup short pulse punching, persistently output operating instruction is to feeder, even if feeder carries out stopping feedback, without stopping output operating instruction, to ensure after power supply switches, feeder can rely on the operating instruction self-starting continuing to receive. Additionally, same in order to ensure safety, receive feeder stop feedback after, postpone that (wherein the very first time depends on the speed that power supply switches, and the present invention is preferably the 3-5 second very first time, do not limit at this), complete to ensure power supply switching, postponing after the very first time, if what still receive feeder stops feedback, illustrate that this stops feeding back and be not due to what power supply switching caused, therefore control to stop output operating instruction. If after postponing the very first time, what no longer receive feeder stops feedback, illustrates that power supply has switched complete, will be left intact, it is ensured that continue to put out operating instruction to feeder, makes feeder self-starting again.
Except as described above can be automatically stopped output operating instruction except, it is also possible to manually stop. After staff presses stop button, send stopping short pulse punching, to stop output operating instruction.
Pass through technique scheme, adopt feeder power supply switch and anti-jump brake gear provided by the invention and feeder power supply switch and anti-jump lock method, when starting, open instruction module to respond to users action and send short pulse and rush to operating instruction output module, operating instruction output module is made to continuously send out operating instruction to feeder, run feedback reception module and receive the operation feedback of feeder, when receiving when stopping feeding back of feeder, logic module trigger, after the time delay very first time, if running feedback reception module still receive when stopping feeding back of feeder, logic module controls operating instruction output module and stops output operating instruction, if operation feedback reception module no longer receives when stopping feeding back, logic module is left intact. this feeder power supply switch and anti-jump brake gear and feeder power supply switch and anti-jump lock method under the premise ensureing equipment safety, can realize feeder self-starting function when feeder entrance power supply switches.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing; but; the present invention is not limited to the detail in above-mentioned embodiment; in the technology concept of the present invention; technical scheme can being carried out multiple simple variant, these simple variant belong to protection scope of the present invention.
It is further to note that, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode, in order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by the present invention separately.
Additionally, can also carry out combination in any between the various different embodiment of the present invention, as long as it is without prejudice to the thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (8)
1. a feeder power supply switch and anti-jump brake gear, it is characterised in that this device includes:
Open instruction module (1), operating instruction output module (3), run feedback reception module (4) and logic module (5), wherein,
The described instruction module (1) that opens is used for sending startup short pulse punching to described operating instruction output module (3), so that described operating instruction output module (3) output operating instruction is to feeder;
Described operation feedback reception module (4) is for receiving the feedback of described feeder; And
Logic module (5) is for receiving stopping the feedback delay slow very first time of described feeder described operation feedback reception module (4), and feedback according to described feeder judges whether that controlling described operating instruction output module (3) stops output operating instruction after postponing the very first time.
2. feeder power supply switch and anti-jump brake gear according to claim 1, it is characterised in that this device also includes:
Stop instruction module (2), is used for sending stopping short pulse punching to described operating instruction output module (3), so that described operating instruction output module (3) stops exporting described operating instruction.
3. feeder power supply switch and anti-jump brake gear according to claim 1, it is characterised in that judge whether that controlling described operating instruction output module (3) stopping output operating instruction includes according to the feedback of described feeder:
Still receiving when stopping feeding back of described feeder when described operation feedback reception module (4), described logic module (5) controls described operating instruction output module (3) and stops exporting described operating instruction.
4. feeder power supply switch and anti-jump brake gear according to claim 1, it is characterised in that judge whether that controlling described operating instruction output module (3) stopping output operating instruction also includes according to the feedback of described feeder:
No longer receiving when stopping feeding back of described feeder when described operation feedback reception module (4), described operating instruction output module (3) continues to export described operating instruction and makes described feeder again properly functioning.
5. a feeder power supply switch and anti-jump lock method, it is characterised in that the method includes:
Send startup short pulse punching, to export operating instruction to feeder;
Receive the feedback of described feeder; And
Receiving stopping the feedback delay slow very first time of described feeder, and judging whether to stop output operating instruction postponing after the very first time feedback according to described feeder.
6. feeder power supply switch and anti-jump lock method according to claim 5, it is characterised in that the method also includes:
Send stopping short pulse punching, to stop exporting described operating instruction.
7. feeder power supply switch and anti-jump lock method according to claim 5, it is characterised in that judge whether that stopping output operating instruction includes according to the feedback of described feeder:
When still receiving when stopping feeding back of described feeder, stop exporting described operating instruction.
8. feeder power supply switch and anti-jump lock method according to claim 5, it is characterised in that judge whether that stopping output operating instruction also includes according to the feedback of described feeder:
When no longer receiving when stopping feeding back of described feeder, continue to export described operating instruction and make described feeder again properly functioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168959.5A CN105680446A (en) | 2016-03-23 | 2016-03-23 | Device and method for preventing tripping during power switching of coal feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610168959.5A CN105680446A (en) | 2016-03-23 | 2016-03-23 | Device and method for preventing tripping during power switching of coal feeder |
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| Publication Number | Publication Date |
|---|---|
| CN105680446A true CN105680446A (en) | 2016-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610168959.5A Pending CN105680446A (en) | 2016-03-23 | 2016-03-23 | Device and method for preventing tripping during power switching of coal feeder |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3025512A1 (en) * | 1980-07-05 | 1982-01-28 | Karl von Dipl.-Ing.Dipl.-Wirtsch. 2000 Hamburg Wedel | Starting and running down procedure - is for inert operation coal pulverising and driving plant and involves water evaporator with interlocked operation |
| JPH1155856A (en) * | 1997-08-05 | 1999-02-26 | Hakko Denki Kk | Electric power system operation system and terminal equipment for consumer used in the system |
| CN101277029A (en) * | 2007-03-27 | 2008-10-01 | 宝山钢铁股份有限公司 | Method for maintaining operation of coal supply machine frequency transformer when switching instantly electric power of |
| KR20130014395A (en) * | 2011-07-29 | 2013-02-07 | 제너럴 일렉트릭 캄파니 | Maximum power point tracking for power conversion system and method thereof |
| CN103528087A (en) * | 2013-09-27 | 2014-01-22 | 上海发电设备成套设计研究院 | Method for resisting low voltage fault of coal feeder |
| US9444356B2 (en) * | 2011-12-28 | 2016-09-13 | Mitsubishi Hitachi Power Systems, Ltd. | Power supply device and power supply switching method |
-
2016
- 2016-03-23 CN CN201610168959.5A patent/CN105680446A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3025512A1 (en) * | 1980-07-05 | 1982-01-28 | Karl von Dipl.-Ing.Dipl.-Wirtsch. 2000 Hamburg Wedel | Starting and running down procedure - is for inert operation coal pulverising and driving plant and involves water evaporator with interlocked operation |
| JPH1155856A (en) * | 1997-08-05 | 1999-02-26 | Hakko Denki Kk | Electric power system operation system and terminal equipment for consumer used in the system |
| CN101277029A (en) * | 2007-03-27 | 2008-10-01 | 宝山钢铁股份有限公司 | Method for maintaining operation of coal supply machine frequency transformer when switching instantly electric power of |
| KR20130014395A (en) * | 2011-07-29 | 2013-02-07 | 제너럴 일렉트릭 캄파니 | Maximum power point tracking for power conversion system and method thereof |
| US9444356B2 (en) * | 2011-12-28 | 2016-09-13 | Mitsubishi Hitachi Power Systems, Ltd. | Power supply device and power supply switching method |
| CN103528087A (en) * | 2013-09-27 | 2014-01-22 | 上海发电设备成套设计研究院 | Method for resisting low voltage fault of coal feeder |
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Application publication date: 20160615 |