CN202856380U - Back-to-back start control circuit of water-pumping storage machine set - Google Patents
Back-to-back start control circuit of water-pumping storage machine set Download PDFInfo
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- CN202856380U CN202856380U CN 201220528835 CN201220528835U CN202856380U CN 202856380 U CN202856380 U CN 202856380U CN 201220528835 CN201220528835 CN 201220528835 CN 201220528835 U CN201220528835 U CN 201220528835U CN 202856380 U CN202856380 U CN 202856380U
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- 238000005086 pumping Methods 0.000 title abstract 3
- 230000007935 neutral effect Effects 0.000 claims description 14
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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Abstract
The utility model discloses a back-to-back start control circuit of a water-pumping storage machine set, and the back-to-back start control circuit has properties of simple circuit structure, simple sequential control flow and easy processing during occurrence of a fault. A first machine reversing tool, a first machine dragging tool and a first machine generator switch of the back-to-back start control circuit are respectively connected with a first intersection contact, the first machine generator switch, a first machine switch side ground tool, a first machine passive tool and a first machine are respectively connected with a second intersection contact, a second machine reversing tool, a second machine dragging tool and a second machine generator switch are respectively connected with a third intersection contact, a second machine generator switch, a machine switch side ground tool, a second machine passive tool and a second machine are connected with a fourth intersection contact, and the first machine dragging tool, the second machine dragging tool, the machine passive tool and the second machine passive tool are respectively connected with a fifth intersection contact. The back-to-back start control circuit is mainly used in back-to-back start technology of the water-pumping storage machine set.
Description
Technical field
The utility model relates to pumped storage unit starting field, relates in particular to back-to-back start-up technique of a kind of pumped storage unit, is specifically related to a kind of pumped storage unit and starts back-to-back control circuit.
Background technology
Dragging back-to-back is a kind of peculiar technology of hydroenergy storage station.Because the circuit structure that existing hydroenergy storage station drags back-to-back is comparatively complicated, so that sequence control process is also comparatively complicated, if when burst accident occured, difficulty was dealt with quickly.
China Patent Publication No. CN102315810A, open day is on January 11st, 2012, name is called in the scheme of " based on the starting high-power pumped storage unit system of integral gate change transistor " and discloses a kind of starting high-power pumped storage unit system based on integral gate change transistor, and this system comprises power supply network, synchronous machine, static frequency-conversion device, excitation unit and the switch that is incorporated into the power networks; Described static frequency-conversion device comprises a filter, a step-up transformer, three frequency conversion side thyristor power units and three step-down transformers; Described excitation unit comprises excitation side transformer and excitation side thyristor power unit; The armature winding of described synchronous machine connects power supply network through the switch that is incorporated into the power networks, and receive power supply network through static frequency-conversion device, grid side vacuum switch, grid side instrument transformer successively, its excitation winding is received power supply network through excitation unit, excitation side vacuum switch, excitation side instrument transformer successively.Weak point is that this starting high-power pumped storage unit system based on integral gate change transistor is owing to complex structure, so that sequence control process is also comparatively complicated, if when burst accident occured, difficulty was dealt with quickly.
The utility model content
The utility model is comparatively complicated in order to overcome the circuit structure that existing hydroenergy storage station drags back-to-back, so that sequence control process is also comparatively complicated, when if burst accident occurs, difficult these deficiencies of dealing with quickly, provide a kind of safe, reliability is strong, protective good, be easy to installation and maintenance, toggle speed is fast, circuit structure is simple, sequence control process is also comparatively simple, and a kind of pumped storage unit that is easy to deal with quickly when burst accident occurs starts control circuit back-to-back.
To achieve these goals, the utility model is by the following technical solutions:
A kind of pumped storage unit starts control circuit back-to-back, comprise machine commutation cutter No. one, No. two machine commutation cuttves, a machine commutation side ground cutter, No. two machine commutation side ground cuttves, No. one machine drags cutter, No. two machine drags cutter, a machine generator contactor, No. two machine generator contactors, a machine switch-side ground cutter, No. two machine switch-side ground cuttves, a machine driven knife, No. two machine driven knife, a machine, No. two machines, also comprise first contact that crosses, second contact that crosses, the 3rd contact that crosses, the 4th contact that crosses, the 5th contact that crosses, wherein, a machine commutation cutter, a machine commutation side ground cutter, No. one machine drags cutter, machine generator contactor all is connected with first contact that crosses, a machine generator contactor, a machine switch-side ground cutter, a machine driven knife, machine all is connected with second contact that crosses, No. two machine commutation cuttves, No. two machine commutation side ground cuttves, No. two machine drags cutter, No. two machine generator contactors all are connected with the 3rd contact that crosses, No. two machine generator contactors, No. two machine switch-side ground cuttves, No. two machine driven knife, No. two machines all are connected with the 4th contact that crosses, and No. one machine drags cutter, No. two machine drags cutter, a machine driven knife, No. two the machine driven knife all is connected with the 5th joint.
As preferably, also comprise a machine neutral point plug-in strip and No. two machine neutral point plug-in strips, a described machine neutral point plug-in strip is connected with a machine, and described No. two machine neutral point plug-in strips are connected with No. two machines.
As preferably, also comprise a machine transformer and No. two machine transformers, a described machine transformer is connected with a machine commutation cutter, and described No. two machine transformers are connected with No. two machine commutation cuttves.
As preferably, also comprise bus bar side ground cutter, start the bus plug-in strip, start the loop and cause other unit and the 6th contact that crosses, the 5th cross contact, bus bar side ground cutter, start the bus plug-in strip and all be connected with the 6th contact that crosses, described startup loop causes other unit and is connected with startup bus plug-in strip.
The utility model can reach following effect:
1, this programme is provided with at every generator and drags cutter and dragged cutter, two generators are one group, allow by the contact that crosses and mutual drag cutter and to be dragged cutter and be connected, so that every generator can be as pull-over gear or by pull-over gear, circuit structure is simple, so that sequence control process is also comparatively simple, when occuring, burst accident just is easy to deal with quickly
2, the circuit structure of this programme is simple, so that the circuit safety of this scheme is high, reliability is strong, protective good.Also so that the motor of pumped-storage power generation is installed simply, quantities is low, and cost is low, and is easy to maintenance.
3, toggle speed is fast.
Description of drawings
Fig. 1 is a kind of circuit theory syndeton block diagram of the present utility model.
Fig. 2 is connected to a kind of circuit theory syndeton block diagram on other unit to Fig. 1.
Fig. 1 is a kind of pumped storage unit change working block diagram of the present utility model.
Wherein, 19, first contact that crosses; 20, second contact that crosses; 21, the 3rd contact that crosses; 22, the 3rd cross contact; 23, the 5th contact that crosses; 27, the 6th contact that crosses.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment one: a kind of pumped storage unit of the present embodiment starts control circuit back-to-back, drags No. two machines as example take a machine, and namely a machine moves as pull-over gear, and No. two machines are as being moved by pull-over gear.
As shown in Figure 1, two units comprise a machine transformer 1 and No. two machine transformers 2; Comprise that also machine commutation cutter 3, No. two machine commutation cuttves 4, machine commutation side ground cutter 5, No. two machine commutation sides ground cuttves 6, machine drag cutter 7, No. two machines drag cutter 8, a machine generator contactor 9, No. two machine generator contactors 10, a machine switch-side ground cutter 11, No. two machine switch-side ground cuttves 12, a machine driven knife 13, No. two machine driven knife 14, a machine 15, No. two machines 16; Also comprise a machine neutral point plug-in strip 17 and No. two machine neutral point plug-in strips 18; Also comprise first contact 19, second contact 20, the 3rd contact 21, the 4th contact 22, the 5th contact 23 that crosses that crosses that crosses that crosses that crosses.
Electrical connection between two units is: No. one the machine transformer is connected with a machine commutation cutter, machine commutation cutter, machine commutation side ground cutter, machine drag cutter, machine generator contactor and all are connected with first contact that crosses, machine generator contactor, machine switch-side ground cutter, machine driven knife, machine all are connected with second contact that crosses, and No. one machine neutral point plug-in strip is connected with a machine; No. two machines commutation cuttves, No. two machine commutation sides ground cuttves, No. two machines drag cutter, No. two machine generator contactors and all are connected with the 3rd contact that crosses, No. two machine generator contactors, No. two machine switch-side ground cuttves, No. two machine driven knife, No. two machines all are connected with the 4th contact that crosses, No. two the machine transformer is connected with No. two machine commutation cuttves, and No. two machine neutral point plug-in strip is connected with No. two machines; Machine drags cutter, No. two machines and drags cutter, a machine driven knife, No. two machine driven knife and all be connected with the 5th joint.
A machine is as pull-over gear, and No. two machine conducts are by pull-over gear.Drag in the process of No. two machines at a machine, a machine commutation cutter and a machine neutral point plug-in strip of a machine all are in gate-dividing state, and No. two machine commutation cuttves of No. two machines close in the direction of drawing water, and No. two machine neutral point plug-in strips of No. two machines are in "on" position.In start-up course, add excitation for respectively a machine and No. two machines, a machine generating direction rotation, the low-frequency power that produces directly is added on the stator of No. two machines, No. two machines are followed a machine and are rotated toward the water pump direction under the synchronous torque effect, and raising speed progressively, until being incorporated into the power networks, No. two machines arrive the working conditions of phrase modulation that draws water.
This embodiment's is safe, and reliability is strong, protective good, is easy to installation and maintenance, and toggle speed is fast, and circuit structure is simple, and sequence control process is also comparatively simple, is easy to deal with quickly when burst accident occurs.
Embodiment two, as shown in Figure 2, also comprise bus bar side ground cutter 24, start bus plug-in strip 25, start the loop and cause other unit 26 and the 6th contact 27 that crosses.
Wherein, the 5th cross contact, bus bar side ground cutter, start the bus plug-in strip and all be connected with the 6th contact that crosses, the startup loop causes other unit and is connected with startup bus plug-in strip.
Embodiment two is on the basis of embodiment one, more unit is linked into this pumped storage unit to be started in the control circuit back-to-back, so that starting control circuit back-to-back, this becomes a network, can with any engine in the network as off line, drag other engine in this network.High efficiency, cost also can reduce greatly.
The above has described execution mode of the present utility model by reference to the accompanying drawings, but not limited by above-described embodiment when realizing, those of ordinary skills can make a variety of changes or revise within the scope of the appended claims.
Claims (4)
1. a pumped storage unit starts control circuit back-to-back, it is characterized in that, comprise machine commutation cutter (3) No. one, No. two machine commutation cuttves (4), a machine commutation side ground cutter (5), No. two machine commutation side ground cuttves (6), No. one machine drags cutter (7), No. two machine drags cutter (8), a machine generator contactor (9), No. two machine generator contactors (10), a machine switch-side ground cutter (11), No. two machine switch-side ground cuttves (12), a machine driven knife (13), No. two machine driven knife (14), a machine (15), No. two machines (16), also comprise first contact (19) that crosses, second contact (20) that crosses, the 3rd contact (21) that crosses, the 4th contact (22) that crosses, the 5th contact (23) that crosses, wherein, a machine commutation cutter, a machine commutation side ground cutter, No. one machine drags cutter, machine generator contactor all is connected with first contact that crosses, a machine generator contactor, a machine switch-side ground cutter, a machine driven knife, machine all is connected with second contact that crosses, No. two machine commutation cuttves, No. two machine commutation side ground cuttves, No. two machine drags cutter, No. two machine generator contactors all are connected with the 3rd contact that crosses, No. two machine generator contactors, No. two machine switch-side ground cuttves, No. two machine driven knife, No. two machines all are connected with the 4th contact that crosses, and No. one machine drags cutter, No. two machine drags cutter, a machine driven knife, No. two the machine driven knife all is connected with the 5th joint.
2. a kind of pumped storage unit according to claim 1 starts control circuit back-to-back, it is characterized in that, also comprise a machine neutral point plug-in strip (17) and No. two machine neutral point plug-in strips (18), a described machine neutral point plug-in strip is connected with a machine, and described No. two machine neutral point plug-in strips are connected with No. two machines.
3. a kind of pumped storage unit according to claim 1 and 2 starts control circuit back-to-back, it is characterized in that, also comprise a machine transformer (1) and No. two machine transformers (2), a described machine transformer is connected with a machine commutation cutter, and described No. two machine transformers are connected with No. two machine commutation cuttves.
4. a kind of pumped storage unit according to claim 3 starts control circuit back-to-back, it is characterized in that, also comprise bus bar side ground cutter (24), start bus plug-in strip (25), start the loop and cause other unit (26) and the 6th contact (27) that crosses, the 5th cross contact, bus bar side ground cutter, start the bus plug-in strip and all be connected with the 6th contact that crosses, described startup loop causes other unit and is connected with startup bus plug-in strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528835 CN202856380U (en) | 2012-10-16 | 2012-10-16 | Back-to-back start control circuit of water-pumping storage machine set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220528835 CN202856380U (en) | 2012-10-16 | 2012-10-16 | Back-to-back start control circuit of water-pumping storage machine set |
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| Publication Number | Publication Date |
|---|---|
| CN202856380U true CN202856380U (en) | 2013-04-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220528835 Expired - Fee Related CN202856380U (en) | 2012-10-16 | 2012-10-16 | Back-to-back start control circuit of water-pumping storage machine set |
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| CN (1) | CN202856380U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453199A (en) * | 2013-09-13 | 2013-12-18 | 国家电网公司 | Method for ensuring normal starting of unit in case of loss of position signals of bypass valve of main water inlet valve |
| CN104155883A (en) * | 2014-06-12 | 2014-11-19 | 国家电网公司 | Starting control method for static frequency converter (SFC) of pump storage group |
| CN107666257A (en) * | 2017-11-15 | 2018-02-06 | 河南省水利勘测设计研究有限公司 | Hydroenergy storage station back to back starting equipment connection method |
-
2012
- 2012-10-16 CN CN 201220528835 patent/CN202856380U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453199A (en) * | 2013-09-13 | 2013-12-18 | 国家电网公司 | Method for ensuring normal starting of unit in case of loss of position signals of bypass valve of main water inlet valve |
| CN103453199B (en) * | 2013-09-13 | 2016-09-07 | 国家电网公司 | The method that unit normally starts is ensured during main water intaking valve bypass valve position dropout |
| CN104155883A (en) * | 2014-06-12 | 2014-11-19 | 国家电网公司 | Starting control method for static frequency converter (SFC) of pump storage group |
| CN104155883B (en) * | 2014-06-12 | 2016-09-14 | 国家电网公司 | A kind of startup control method of pump-storage generator SFC |
| CN107666257A (en) * | 2017-11-15 | 2018-02-06 | 河南省水利勘测设计研究有限公司 | Hydroenergy storage station back to back starting equipment connection method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20191016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |