CN107493039A - A kind of mechanical braking control device, method and the system of pumped storage unit - Google Patents
A kind of mechanical braking control device, method and the system of pumped storage unit Download PDFInfo
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- CN107493039A CN107493039A CN201710786981.0A CN201710786981A CN107493039A CN 107493039 A CN107493039 A CN 107493039A CN 201710786981 A CN201710786981 A CN 201710786981A CN 107493039 A CN107493039 A CN 107493039A
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 68
- 239000000523 sample Substances 0.000 claims abstract description 62
- 230000005611 electricity Effects 0.000 claims abstract description 56
- 238000012544 monitoring process Methods 0.000 claims description 54
- 239000000428 dust Substances 0.000 claims description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 241000009298 Trigla lyra Species 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 241000196324 Embryophyta Species 0.000 claims description 4
- 230000003068 static effect Effects 0.000 claims description 3
- 230000006870 function Effects 0.000 description 6
- 230000006378 damage Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 208000033999 Device damage Diseases 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000008034 disappearance Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P3/00—Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters
- H02P3/02—Details of stopping control
- H02P3/04—Means for stopping or slowing by a separate brake, e.g. friction brake or eddy-current brake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/06—Stations or aggregates of water-storage type, e.g. comprising a turbine and a pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B15/00—Controlling
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/10—Special adaptation of control arrangements for generators for water-driven turbines
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Wind Motors (AREA)
- Hydraulic Turbines (AREA)
Abstract
The present invention provides a kind of mechanical braking control method, device and the system of pumped storage unit, and methods described includes：The feedback signal of electric braking disconnecting link in hydroenergy storage station, GCB feedback signal, the feedback signal of the fully closed sensor of stator, the tach signal of unit, the feedback signal of guide vane opening feedback transducer, the tach signal of fluted disc speed measuring probe measurement, first rotary speed threshold value and the output mechanical braking instruction of the second rotary speed threshold value, so that the low-pressure gas in magnetic valve action control mechanical braking supply air line enters the cavity of resorption of brake by magnetic valve UNICOM and is allowed to jack up the brake hoop friction being fixed on hydroenergy storage station below unit generation motor rotation part, so that the pumped storage unit of hydroenergy storage station to be stopped to inactive state.The present invention adjusts the feedback signal of collection guide vane opening feedback transducer and the tach signal of fluted disc speed measuring probe measurement due to adding speed regulator electricity, as mechanical braking condition is put into, can improve the reliability of signal circuit.
Description
Technical field
The present invention is led on technical field of power systems especially with regard to the hydroenergy storage station technology in power system
Domain, concretely it is a kind of novel mechanical brake control, method and system of pumped storage unit.
Background technology
At present, hydroenergy storage station is all designed with mechanical braking control device, is commonly called as mechanical brake or brake, and machinery
Brake control is one of auxiliary control appliance of power station and hydroenergy storage station indispensability, and its main function is in pumped storage machine
It is less than a certain rotating speed input brake in group stopping process, the brake hoop friction with being fixed on electricity generation and electromotion motor spindle, will takes out
Unit is stored to stop to static stable state not to be rotated further by.After unit comes to a complete stop, brake can select to put into always, can also exit.
Once there is the band mechanical braking start of unit generation direction and causes device damage accident in pumped storage storage station；Also once
Occurred in stopping process unit generation motor outlet breaker (hereinafter referred to as GCB) separate, after movable guide vane is fully closed by
Cause at a high speed in speed measuring device abnormal signal plus lock causes device damage accident；A most emerging phenomenon is certain pump-up power station
Pumped storage unit Pump Failure shut down when, due to unit self character, generating unit speed is after 100% rotating speed stops to zero
Higher rotation speed (being more than 20% rotating speed as inverted, up to more than 90% rotating speed), the pumped storage machine of normal pump-up power station can be inverted to
Shut down during group Pump Failure, unit is down to 0 from 100% rotating speed, is not in reversal development, if the control of mechanical brake device
It is bad, also occur that band mechanical brake device is inverted to higher rotation speed when Pump Failure shuts down reversion, so as to cause damage of facilities
Accident, therefore avoid mechanical brake device miscarry into be one be worth research problem.
A set of mechanical brake device about hundreds of thousands member, about 7 days maintenance down durations, the pumped storage unit income of one day is about several
100000 yuan, the members up to a million of indirect economic loss caused by maintenance down, therefore mechanical braking control destroy will cause it is huge straight
Connect and indirect economic loss.
The content of the invention
In order to solve above-mentioned technical problem existing for prior art, the invention provides a kind of mechanical braking of pumped storage unit
Control method, device and system, by automaton gather hydroenergy storage station in electric braking disconnecting link feedback signal,
The guide vane opening that the fully closed sensor feedback signal of GCB feedback signal, stator, generating unit speed signal, increase speed regulator electricity are adjusted is anti-
The tach signal of infeed sensor device feedback signal and fluted disc speed measuring probe measurement, with reference to the first rotary speed threshold value set in advance and
Two rotary speed threshold values, and then mechanical braking input instruction can be exported, the electromagnetism valve events are controlled with mechanical braking instruction,
Low pressure gas (be usually 0.8MPa) in control machinery brake air supply pipe road by the cavity of resorption of brake described in magnetic valve UNICOM simultaneously
It is allowed to jack up, the brake hoop friction below unit generation motor rotation part is fixed on the hydroenergy storage station, will
The pumped storage unit of the hydroenergy storage station stops to inactive state.
It is an object of the invention to provide a kind of mechanical braking control method of pumped storage unit, methods described includes：
Gather the feedback signal of the generator motor outlet breaker GCB in the hydroenergy storage station；
Gather the feedback signal of the fully closed sensor of stator in the hydroenergy storage station；
Speed regulator electricity adjusts the feedback signal and tooth for gathering the guide vane opening feedback transducer in the hydroenergy storage station
The tach signal of disk holes probe measurement；
Gather the feedback signal of the electric braking disconnecting link in the hydroenergy storage station；
Independent speed measuring module measures the tach signal of the unit in the hydroenergy storage station；
Obtain the first rotary speed threshold value and the second rotary speed threshold value set in advance, first rotary speed threshold value is less than described the
Two rotary speed threshold values；
Feedback signal, GCB feedback signal, the fully closed biography of stator of electric braking disconnecting link in the hydroenergy storage station
The feedback signal of sensor, the tach signal of unit, the feedback signal of guide vane opening feedback transducer, fluted disc speed measuring probe measurement
Tach signal, the first rotary speed threshold value or the output mechanical braking input instruction of the second rotary speed threshold value, so that the electromagnetism valve events, control
Low pressure gas in mechanical braking supply air line processed enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to jack up, with institute
The brake hoop friction that hydroenergy storage station is fixed on below unit generation motor rotation part is stated, by water-storage electricity
The pumped storage unit stood stops to inactive state.
In the preferred embodiment of the present invention, the electric braking disconnecting link feedback letter in the hydroenergy storage station
Number, GCB feedback signals, the fully closed sensor feedback signal of stator, generating unit speed signal, guide vane opening feedback transducer feedback letter
Number, fluted disc speed measuring probe measurement tach signal, the first rotary speed threshold value and the second rotary speed threshold value output mechanical braking instruction include：
Judge whether to receive the feedback signal of the GCB, the feedback signal of the fully closed sensor of the stator and described
The feedback signal of guide vane opening feedback transducer；
When being judged as YES and the feedback signal of the electric braking disconnecting link is closes position, continue to judge the fluted disc speed measuring probe
Whether the tach signal of measurement is more than first rotary speed threshold value；
When being judged as NO, judge whether the tach signal of the unit is more than first rotary speed threshold value；
When being judged as NO, output mechanical braking input instruction.
In the preferred embodiment of the present invention, the electric braking disconnecting link feedback letter in the hydroenergy storage station
Number, GCB feedback signals, the fully closed sensor feedback signal of stator, generating unit speed signal, guide vane opening feedback transducer feedback letter
Number, the tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and the second rotary speed threshold value output mechanical braking instruction also
Including：
Judge whether to receive the feedback signal of the GCB, the feedback signal of the fully closed sensor of the stator and described
The feedback signal of guide vane opening feedback transducer；
When being judged as YES, judge whether the tach signal of the fluted disc speed measuring probe measurement is more than the second rotating speed threshold
Value；
When being judged as NO, judge whether the tach signal of the unit is more than second rotary speed threshold value；
When being judged as NO, whether the feedback signal for the electric braking disconnecting link for judging to receive is a point position；
When being judged as YES, output mechanical braking input instruction.
In the preferred embodiment of the present invention, the electric braking disconnecting link feedback letter in the hydroenergy storage station
Number, GCB feedback signals, the fully closed sensor feedback signal of stator, generating unit speed signal, guide vane opening feedback transducer feedback letter
Number, the tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and the second rotary speed threshold value output mechanical braking instruction also
Including：
When receiving the feedback signal of the GCB, true signal is exported；
When receiving the feedback signal of the fully closed sensor of the stator, true signal is exported；
When receiving the feedback signal of the guide vane opening feedback transducer, true signal is exported；
When the feedback signal of the electric braking disconnecting link is less than to close the tach signal of position and the fluted disc speed measuring probe measurement
During equal to first rotary speed threshold value, true signal is exported；
When the tach signal of the unit is less than or equal to first rotary speed threshold value, true signal is exported；
The electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road enter the system by magnetic valve UNICOM
The cavity of resorption of dynamic device simultaneously is allowed to jack up, and the braking below unit generation motor rotation part is fixed on the hydroenergy storage station
Ring friction, the pumped storage unit of the hydroenergy storage station is stopped to inactive state.
In the preferred embodiment of the present invention, the electric braking disconnecting link feedback letter in the hydroenergy storage station
Number, GCB feedback signals, the fully closed sensor feedback signal of stator, generating unit speed signal, guide vane opening feedback transducer feedback letter
Number, fluted disc speed measuring probe measurement tach signal, the first rotary speed threshold value and the second rotary speed threshold value output mechanical braking instruction also wrap
Include：
When receiving the feedback signal of the GCB, true signal is exported；
When receiving the feedback signal of the fully closed sensor of the stator, true signal is exported；
When receiving the feedback signal of the guide vane opening feedback transducer, true signal is exported；
When the tach signal of the fluted disc speed measuring probe measurement is less than or equal to second rotary speed threshold value, true letter is exported
Number；
When the tach signal of the unit is less than or equal to second rotary speed threshold value, true signal is exported；
When the electric braking disconnecting link received feedback signal for point position when, export true signal；
The electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road enter the system by magnetic valve UNICOM
The cavity of resorption of dynamic device simultaneously is allowed to jack up, and the braking below unit generation motor rotation part is fixed on the hydroenergy storage station
Ring friction, the pumped storage unit of the hydroenergy storage station is stopped to inactive state.
In the preferred embodiment of the present invention, the mechanical braking control method also includes absorbing the brake
Friction dust.
It is an object of the invention to provide a kind of mechanical braking control device of pumped storage unit, the mechanical braking control
Device processed is applied to hydroenergy storage station, and the mechanical braking control device includes brake, mechanical braking supply air line, electromagnetism
Valve and automaton,
Wherein, the automaton includes：
First acquisition module, for gathering the electric braking disconnecting link feedback signal in the hydroenergy storage station；
Second acquisition module, for gathering the feedbacks of the generator motor outlet breaker GCB in the hydroenergy storage station
Signal；
3rd acquisition module, for gathering the fully closed sensor feedback signal of stator in the hydroenergy storage station；
Independent speed measuring module, for measuring the generating unit speed signal in the hydroenergy storage station；
Speed regulator electricity is adjusted, for gather guide vane opening feedback transducer feedback signal in the hydroenergy storage station and
The tach signal of fluted disc speed measuring probe measurement；
Threshold value acquisition module, for obtaining the first rotary speed threshold value and the second rotary speed threshold value set in advance, described first
Rotary speed threshold value is less than second rotary speed threshold value；
Monitoring module, for the electric braking disconnecting link feedback signal in the hydroenergy storage station, GCB feedback signals,
The fully closed sensor feedback signal of stator, generating unit speed signal, guide vane opening feedback transducer feedback signal, fluted disc speed measuring probe are surveyed
The tach signal of amount, the first rotary speed threshold value and the output mechanical braking input instruction of the second rotary speed threshold value, so that the magnetic valve
Act, the low pressure gas in control machinery brake air supply pipe road enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to push up
Rise, be fixed on the brake hoop friction below unit generation motor rotation part with the hydroenergy storage station, taken out described
The pumped storage unit of water storage station stops to inactive state.
In the preferred embodiment of the present invention, the monitoring module includes：
First judge module, for judging whether to receive the feedback signal of the GCB, the fully closed sensor of the stator
The feedback signal of feedback signal and the guide vane opening feedback transducer；；
Second judge module, for being judged as YES and the feedback signal of the electric braking disconnecting link when first judge module
During to close position, continue to judge whether the tach signal of the fluted disc speed measuring probe measurement is more than first rotary speed threshold value；
3rd judge module, for when second judge module is judged as NO, judging the tach signal of the unit
Whether first rotary speed threshold value is more than；
First command output module, for when the 3rd judge module is judged as NO, output mechanical braking input to refer to
Order.
In the preferred embodiment of the present invention, the monitoring module also includes：
4th judge module, for judging whether to receive the feedback signal of the GCB, the fully closed sensor of the stator
The feedback signal of feedback signal and the guide vane opening feedback transducer；；
5th judge module, for when the 4th judge module is judged as YES, judging that the fluted disc speed measuring probe is surveyed
Whether the tach signal of amount is more than second rotary speed threshold value；
6th judge module, for when the 5th judge module is judged as NO, judging the tach signal of the unit
Whether second rotary speed threshold value is more than；
7th judge module, for when the 6th judge module is judged as NO, judging the electric braking received
Whether the feedback signal of disconnecting link is a point position；
Second command output module, for when the 7th judge module is judged as YES, output mechanical braking input to refer to
Order.
In the preferred embodiment of the present invention, the monitoring module also includes：
First relay, for when the tach signal of the unit is less than or equal to first rotary speed threshold value, output to be true
Signal；
Second relay, for being conjunction position and the fluted disc speed measuring probe measurement when the feedback signal of the electric braking disconnecting link
Tach signal when being less than or equal to first rotary speed threshold value, export true signal；
3rd relay, for when receiving the GCB feedback signals, exporting true signal；
4th relay, for when receiving the fully closed sensor feedback signal of the stator, exporting true signal；
5th relay, for when receiving the guide vane opening feedback transducer feedback signal, exporting true signal；
The mechanical braking control piper, for as first relay, the second relay, the 3rd relay, the 4th
When the output of relay and the 5th relay is true signal, controls the magnetic valve to put into the brake, taken out with described
The brake hoop friction of water storage station, the pumped storage unit of the hydroenergy storage station is stopped to inactive state.
In the preferred embodiment of the present invention, the monitoring module also includes：
6th relay, for when the electric braking disconnecting link received feedback signal for point position when, export true signal；
7th relay, for when the tach signal of the unit is less than or equal to second rotary speed threshold value, output to be true
Signal；
8th relay, it is less than or equal to the second rotating speed threshold for the tach signal when the fluted disc speed measuring probe measurement
During value, true signal is exported；
The mechanical braking control piper, for as the 6th relay, the 7th relay, the 8th relay, the 3rd
When the output of relay, the 4th relay and the 5th relay is true signal, make the electromagnetism valve events, control machinery system
Low pressure gas in dynamic supply air line enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to jack up, with the storage that draws water
Energy power station is fixed on the brake hoop friction below unit generation motor rotation part, by the pumped storage of the hydroenergy storage station
Unit stops to inactive state.
In the preferred embodiment of the present invention, the mechanical braking control device also includes brake dust absorption dress
Put, for absorbing the friction dust of the brake.
It is an object of the invention to provide a kind of Mechanical Brake System in EMS Middle of pumped storage unit, the pumped storage unit
Mechanical Brake System in EMS Middle include hydroenergy storage station and mechanical braking control device.
The beneficial effects of the present invention are, there is provided a kind of mechanical braking control method of pumped storage unit, device and it is
System, by the feedback signal of the electric braking disconnecting link in automaton collection hydroenergy storage station, GCB feedback signal, lead
The feedback signal of the fully closed sensor of leaf, the tach signal of unit, the feedback signal of guide vane opening feedback transducer, fluted disc speed measuring are visited
The tach signal of head measurement, with reference to the first rotary speed threshold value set in advance and the second rotary speed threshold value, and then can export machinery
Braking input instruction, it is low in control machinery brake air supply pipe road with the mechanical braking instruction control electromagnetism valve events
(being usually 0.8MPa) is calmed the anger by the cavity of resorption of brake described in magnetic valve UNICOM and is allowed to jack up, with the hydroenergy storage station
The brake hoop friction being fixed on below unit generation motor rotation part, the pumped storage unit of the hydroenergy storage station is stopped
To inactive state, the feedback signal of collection guide vane opening feedback transducer and speed regulator electricity is adjusted to adjust due to adding speed regulator electricity
Fluted disc speed measuring probe measurement tach signal, as input mechanical braking condition, improve the reliability of signal circuit.
For the above and other objects, features and advantages of the present invention can be become apparent, preferred embodiment cited below particularly,
And coordinate institute's accompanying drawings, it is described in detail below.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of the Mechanical Brake System in EMS Middle of pumped storage unit provided by the invention；
Fig. 2 is a kind of structural representation of the mechanical braking control device of pumped storage unit provided by the invention；
Fig. 3 is the embodiment one of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation；
Fig. 4 is the embodiment two of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation；
Fig. 5 is the embodiment three of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation；
Fig. 6 is the embodiment four of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation；
Fig. 7 is a kind of schematic flow sheet of the mechanical braking control method of pumped storage unit provided by the invention；
Fig. 8 is the structural representation of the embodiment one of the step S107 in bitmap 7；
Fig. 9 is the structural representation of the embodiment two of the step S107 in bitmap 7；
Figure 10 is the structural representation of the embodiment three of the step S107 in bitmap 7；
Figure 11 is the structural representation of the embodiment four of the step S107 in bitmap 7；
Figure 12 is the hardware connection figure of the mechanical braking control device of pumped storage unit in specific embodiment；
Figure 13 is the logic optimization flow chart of the mechanical braking control method of pumped storage unit in specific embodiment；
Figure 14 is the structure of automaton in a kind of mechanical braking control device of pumped storage unit provided by the invention
Schematic diagram；
Figure 15 is the schematic diagram of the mechanical braking control device of pumped storage unit in specific embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 is a kind of structural representation of the Mechanical Brake System in EMS Middle of pumped storage unit provided by the invention, refers to figure
1, system provided by the invention includes the mechanical braking control device 200 of hydroenergy storage station 100 and pumped storage unit.
In the prior art, hydroenergy storage station generally is configured with corresponding mechanical braking control device, is commonly called as mechanical brake
Or brake, and mechanical braking control device is one of auxiliary control appliance of power station and hydroenergy storage station indispensability, it is led
It is the mechanical braking control device input brake, with fixation when being less than a certain rotating speed during pumped storage compressor emergency shutdown to act on
In the brake hoop friction of the electricity generation and electromotion motor spindle of hydroenergy storage station, pumped storage unit is stopped to static stable state not to be rotated further by.
When a most emerging phenomenon is that the pumped storage unit Pump Failure of certain pump-up power station is shut down, due to the original of unit self character
Cause, generating unit speed can be inverted to higher rotation speed and (be more than 20% rotating speed as inverted, up to after stopping to zero from 100% rotating speed
It is more than 90% rotating speed), shut down during the pumped storage unit Pump Failure of normal pump-up power station, unit is down to 0 from 100% rotating speed, will not
There is reversal development, if the control of mechanical brake device is bad, band mechanical braking when Pump Failure shuts down reversion also occurs
Device is inverted to higher rotation speed, so as to cause the accident of damage of facilities.
Fig. 2 is a kind of structural representation of the mechanical braking control device of pumped storage unit provided by the invention, refers to figure
2, mechanical braking control device provided by the invention include brake 40, mechanical braking supply air line 20, magnetic valve 30 and from
Dynamic control device 10.
Figure 14 is the structure of automaton in a kind of mechanical braking control device of pumped storage unit provided by the invention
Schematic diagram, refers to Figure 14, and the automaton 10 includes：
First acquisition module 101, for gathering the feedback signal of the electric braking disconnecting link in the hydroenergy storage station；
Second acquisition module 102, for gathering the generator motor outlet breaker GCB's in the hydroenergy storage station
Feedback signal；
3rd acquisition module 103, for gathering the feedback signal of the fully closed sensor of stator in the hydroenergy storage station；
Independent speed measuring module 104, for measuring the tach signal of the unit in the hydroenergy storage station；
Speed regulator electricity adjusts 105, for gathering the feedback letter of the guide vane opening feedback transducer in the hydroenergy storage station
Number and fluted disc speed measuring probe measurement tach signal；
Threshold value acquisition module 106, for obtaining the first rotary speed threshold value and the second rotary speed threshold value set in advance, described
One rotary speed threshold value is less than second rotary speed threshold value.In a particular embodiment of the present invention, the first rotary speed threshold value is such as 5%,
Second rotary speed threshold value is such as 20%.First rotary speed threshold value, the second rotary speed threshold value can be set different according to different actual scenes
Value.In general, generating unit speed is higher, it is allowed to which the rotating speed of mechanical braking input is lower, such as 100 revs/min of rated speed
Unit, 20% rotating speed is 20 revs/min, and brake hoop rated speed is 500 revs/min of unit, and 20% rotating speed is
100 revs/min, if putting into mechanical braking in 20% rotating speed, the unit equivalent to 100 revs/min is put under rated speed,
The destruction of mechanical brake device will be caused, therefore generating unit speed is higher, it is allowed to which the rotating speed of input is lower.
Monitoring module 107, feedback signal, GCB for the electric braking disconnecting link in the hydroenergy storage station it is anti-
The feedback signal of the fully closed sensor of feedback signal, stator, the tach signal of unit, guide vane opening feedback transducer feedback signal,
The tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and the output mechanical braking instruction of the second rotary speed threshold value, so that
The electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road are entered under the brake by magnetic valve UNICOM
Chamber simultaneously is allowed to jack up, and the brake hoop friction below unit generation motor rotation part is fixed on the hydroenergy storage station,
So that the pumped storage unit of the hydroenergy storage station to be stopped to inactive state.
In the present invention in actual use, automaton can collect GCB feedback signal first, then
It is the feedback signal of the fully closed sensor of stator, next to that the feedback signal for the guide vane opening feedback transducer that speed regulator electricity is adjusted, electricity
Feedback signal, the tach signal of unit of disconnecting link are braked, is finally entered according to the signal of these collections with reference to default rotary speed threshold value
Row monitoring.
In the other embodiment of the present invention, as shown in Fig. 2 the mechanical braking control device 200 also includes：Braking
Dust absorbing device 50, for absorbing the friction dust of the brake.Dust after brake friction can be collected by pipeline,
Dust absorbing after friction in pipeline is fallen and discharged by brake dust absorption plant, avoids accumulating.
Fig. 3 is the embodiment one of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation, referring to Fig. 3, in embodiment one, the monitoring module includes：
First judge module 201, for judging whether to receive feedback signal, the fully closed sensing of the stator of the GCB
The feedback signal of the feedback signal of device and the guide vane opening feedback transducer；
Second judge module 202, for being judged as YES and the feedback of the electric braking disconnecting link when first judge module
When signal is closes position, continue to judge whether the tach signal of the fluted disc speed measuring probe measurement is more than first rotary speed threshold value；
3rd judge module 203, for when second judge module is judged as NO, judging that the rotating speed of the unit is believed
Number whether it is more than first rotary speed threshold value；
First command output module 204, for when the 3rd judge module is judged as NO, output mechanical braking to be put into
Instruction.
In the embodiment shown in Fig. 3, for the feedback signal of electric braking disconnecting link to close position, normally closed contact is separated, walks normal
Flow is shut down, mechanical braking is put into less than or equal to the first rotating speed (5% rotating speed).
Fig. 4 is the embodiment two of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation, referring to Fig. 4, in embodiment two, monitoring module includes：
4th judge module 301, for judging whether to receive feedback signal, the fully closed sensing of the stator of the GCB
The feedback signal of the feedback signal of device and the guide vane opening feedback transducer；
5th judge module 302, for when the 4th judge module is judged as YES, judging the fluted disc speed measuring probe
Whether the tach signal of measurement is more than second rotary speed threshold value；
6th judge module 303, for when the 5th judge module is judged as NO, judging that the rotating speed of the unit is believed
Number whether it is more than second rotary speed threshold value；
7th judge module 304, for when the 6th judge module is judged as NO, judging the electricity system received
Whether the feedback signal of moving knife lock is a point position；
Second command output module 305, for when the 7th judge module is judged as YES, output mechanical braking to be put into
Instruction.
In the embodiment shown in Fig. 4, the feedback signal of electric braking disconnecting link normally closed contact closure, is walked urgent to divide position
Flow is shut down, mechanical braking is put into less than or equal to the second rotating speed (20% rotating speed).
Embodiment one, the embodiment two of above-mentioned monitoring module are the control soft logic of monitoring module, in this hair
In bright other embodiment, embodiment one and the soft logic in embodiment two can also be combined into one, form one
Total control logic.In the specific embodiment, because rotating speed is to be dropped to from height low, the second rotary speed threshold value can be first reached again
The first rotary speed threshold value is reached, therefore in a particular embodiment, the control soft logic of embodiment two can be first carried out, then perform
The control soft logic of embodiment one.
In the particular embodiment, mechanical braking input includes：
1) during orderly closedown, receive GCB feedback signal, (electric braking disconnecting link is in the feedback signal of electric braking disconnecting link
Close position state, normally closed contact is separated), the feedback signal of the fully closed sensor of stator, the measurement of independent speed measuring device unit rotating speed
Signal is less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the fluted disc speed measuring probe measurement of speed regulator electricity commissioning amount
Tach signal to be less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the guide vane opening of speed regulator electricity commissioning amount anti-
During the feedback signal of infeed sensor device, monitoring module soft logic sends the mechanical braking instruction of input, and instruction puts into mechanical braking,
The totally stationary backed off after random mechanical braking of unit is always maintained at mechanical braking input；
2) during emergency shutdown, GCB feedback signal, the feedback signal of electric braking disconnecting link are being received (at electric braking disconnecting link DL2
In dividing position state, normally closed contact closure), the feedback signal of the fully closed sensor of stator, the unit of independent speed measuring device measurement turn
Fast signal is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the fluted disc speed measuring probe of speed regulator electricity commissioning amount is surveyed
The tach signal of amount is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the guide vane opening of speed regulator electricity commissioning amount
The feedback signal of feedback transducer, monitoring module soft logic send input instruction, put into mechanical braking.
Fig. 5 is the embodiment three of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation, referring to Fig. 5, in embodiment three, monitoring module includes：
First relay 401, for when the tach signal of the unit is less than or equal to first rotary speed threshold value, exporting
True signal；
Second relay 402, popped one's head in for the feedback signal when the electric braking disconnecting link for conjunction position and the fluted disc speed measuring
When the tach signal of measurement is less than or equal to first rotary speed threshold value, true signal is exported；
3rd relay 403, for when receiving the feedback signal of the GCB, exporting true signal；
4th relay 404, for when receiving the feedback signal of the fully closed sensor of the stator, exporting true signal；
5th relay 405, for when receiving the feedback signal of the guide vane opening feedback transducer, exporting true letter
Number；
The mechanical braking control piper, for as first relay, the second relay, the 3rd relay, the 4th
When the output of relay and the 5th relay is true signal, make the electromagnetism valve events, control machinery brake air supply pipe road
In low pressure gas by magnetic valve UNICOM enter the brake cavity of resorption and be allowed to jack up, fixed with the hydroenergy storage station
Brake hoop friction below unit generation motor rotation part, the pumped storage unit of the hydroenergy storage station is stopped to quiet
Only state.
Fig. 6 is the embodiment four of monitoring module in a kind of mechanical braking control device of pumped storage unit provided by the invention
Structural representation, referring to Fig. 6, in embodiment four, monitoring module includes：
6th relay 501, for when the electric braking disconnecting link received feedback signal for point position when, export true letter
Number；
7th relay 502, for when the tach signal of the unit is less than or equal to second rotary speed threshold value, exporting
True signal；
8th relay 503, it is less than or equal to described second turn for the tach signal when the fluted disc speed measuring probe measurement
During fast threshold value, true signal is exported；
3rd relay 403, for when receiving the feedback signal of the GCB, exporting true signal；
4th relay 404, for when receiving the feedback signal of the fully closed sensor of the stator, exporting true signal；
5th relay 405, for when receiving the feedback signal of the guide vane opening feedback transducer, exporting true letter
Number；
The mechanical braking control piper, for as the 6th relay, the 7th relay, the 8th relay, the 3rd
When the output of relay, the 4th relay and the 5th relay is true signal, make the electromagnetism valve events, control machinery system
Low pressure gas in dynamic supply air line enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to jack up, with the storage that draws water
Energy power station is fixed on the brake hoop friction below unit generation motor rotation part, by the pumped storage of the hydroenergy storage station
Unit stops to inactive state.
In the particular embodiment, mechanical braking input includes：
1) during orderly closedown, receive GCB feedback signal, (electric braking disconnecting link does not divide the feedback signal of electric braking disconnecting link
Open and close a floodgate, normally closed contact is separated), the feedback signal of the fully closed sensor of stator, independent speed measuring device measurement unit rotating speed
Signal is less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the tach signal for the unit that independent speed measuring device measures
Less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), turn of the fluted disc speed measuring probe measurement of speed regulator electricity commissioning amount
Fast signal is less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the fluted disc speed measuring probe of speed regulator electricity commissioning amount is surveyed
The tach signal of amount is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the guide vane opening of speed regulator electricity commissioning amount
During the feedback signal of feedback transducer, monitoring module hardwired logic sends the mechanical braking instruction of input, instruction input machinery
Braking, in the totally stationary backed off after random mechanical braking of unit or it is always maintained at mechanical braking input；
2) during emergency shutdown, GCB feedback signal, the feedback signal of electric braking disconnecting link (DL2 points of electric braking disconnecting link are being received
Open, normally closed contact closure), the feedback signal of the fully closed sensor of stator, independent speed measuring device measurement unit tach signal it is small
In the rotating speed equal to the second rotary speed threshold value (such as 20% speed feedback signal), the fluted disc speed measuring probe measurement of speed regulator electricity commissioning amount
Signal is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the guide vane opening feedback sense of speed regulator electricity commissioning amount
The feedback signal of device, monitoring module hardwired logic send input instruction, put into mechanical braking.
3) emergency shutdown hardwire speculates tool brake circuit, to avoid the soft logic electricity for monitoring module in emergency circumstances occur
Source Disappearance Scenarios, the present invention are designed with hardwire loop, even if the soft logic of monitoring module does not send input instruction extremely, connect firmly
The relay of line can also direct plunge into mechanical braking.
Embodiment three, the embodiment four of above-mentioned monitoring module are the hardwire control logic of monitoring module,
, can also be by the soft logic in embodiment one, embodiment two and embodiment three, reality in the other embodiment of the present invention
The hardwire control logic for applying four kinds of mode is combined into one, and forms a total control logic, control soft logic and hardwire control
Logic processed is simultaneously according to feedback signal, GCB feedback signal, the feedback letter of the fully closed sensor of stator of the electric braking disconnecting link of reception
Number, the tach signal of the tach signal of unit, the feedback signal of guide vane opening feedback transducer, fluted disc speed measuring probe measurement,
One rotary speed threshold value and the second rotary speed threshold value judge, output mechanical braking input instruction.
It is the mechanical braking control device and system of a kind of pumped storage unit provided by the invention as described above, can keeps away
Exempt from monitor it is unwitting in the case of hard loop direct plunge into mechanical braking and damage, increase speed regulator electricity adjusts output speed letter
Number independent speed measuring device tach signal of series connection, as input mechanical braking condition；Increase speed regulator electricity and adjust the fully closed letter of output guide blade
Number, the fully closed signal circuit reliability of stator is improved, optimizes hardwire loop and monitoring control logic, the fully closed signal of stator is by only
Vertical stator closed positions contact and speed regulator electricity adjust judges stator be less than fully closed signal series connection, speed regulator output speed signal and
Independent speed measuring device signal series connection, as the condition for judging input mechanical braking, optimizes hardwire and monitoring programme logic.
In addition, although being referred to some unit modules of system in above-detailed, but this division is only simultaneously
Non-imposed.In fact, according to the embodiment of the present invention, the feature and function of two or more above-described units can
To embody in a unit.Equally, the feature of an above-described unit and function can also be further divided into by
Multiple units embody.Terms used above " module " and " unit ", can be realize predetermined function software and/or
Hardware.Although module described by following examples is preferably realized with software, hardware, or the group of software and hardware
The realization of conjunction is also what may and be contemplated.
After the exemplary implementation of the present invention is described, next, refer to the attached drawing is to the exemplary embodiment party of the present invention
The method of formula is introduced.The implementation of this method may refer to above-mentioned overall implementation, repeats part and repeats no more.
Fig. 7 is a kind of schematic flow sheet of the mechanical braking control method of pumped storage unit provided by the invention, refers to figure
1, this method includes：
S101：Gather the feedback signal of the generator motor outlet breaker GCB in the hydroenergy storage station；
S102：Gather the feedback signal of the fully closed sensor of stator in the hydroenergy storage station；
S103：Speed regulator electricity adjust gather the feedback signal of the guide vane opening feedback transducer in the hydroenergy storage station with
And the tach signal of fluted disc speed measuring probe measurement；
S104：Gather the feedback signal of the electric braking disconnecting link in the hydroenergy storage station；
S105：Independent speed measuring module measures the tach signal of the unit in the hydroenergy storage station；
S106：The first rotary speed threshold value and the second rotary speed threshold value set in advance are obtained, first rotary speed threshold value is less than
Second rotary speed threshold value.In a particular embodiment of the present invention, the first rotary speed threshold value is such as 5%, and the second rotary speed threshold value is all
Such as it is 20%.First rotary speed threshold value, the second rotary speed threshold value can set different values according to different actual scenes.In general,
Generating unit speed is higher, it is allowed to which the rotating speed of mechanical braking input is lower, such as the unit of 100 revs/min of rated speed, 20% turn
Speed is 20 revs/min, and brake hoop rated speed is 500 revs/min of unit, and 20% rotating speed is 100 revs/min, if
Mechanical braking is put into 20% rotating speed, the unit equivalent to 100 revs/min is put under rated speed, will cause mechanical system
The destruction of dynamic device, therefore generating unit speed is higher, it is allowed to the rotating speed of input is lower.
S107：Electric braking disconnecting link feedback signal in the hydroenergy storage station, GCB feedback signals, stator are fully closed
Sensor feedback signal, generating unit speed signal, guide vane opening feedback transducer feedback signal, the rotating speed of fluted disc speed measuring probe measurement
Signal, the first rotary speed threshold value and the output mechanical braking instruction of the second rotary speed threshold value, so that the electromagnetism valve events, control machinery
Low pressure gas in brake air supply pipe road enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to jack up, and is drawn water with described
Storage station is fixed on the brake hoop friction below unit generation motor rotation part, by taking out for the hydroenergy storage station
Unit is stored to stop to inactive state.
In the other embodiment of the present invention, methods described also includes：Absorb the friction dust of the brake.Braking
Dust after device friction can be collected by pipeline, and brake dust absorption plant falls the dust absorbing after the friction in pipeline side by side
Go out, avoid accumulating.
Fig. 8 is the structural representation of the embodiment one of the step S107 in bitmap 7, referring to Fig. 8, in embodiment one
In, the step includes：
S201：Judge whether to receive the feedback signal of the GCB, the feedback signal of the fully closed sensor of the stator and
The feedback signal of the guide vane opening feedback transducer；
S202：When being judged as YES and the feedback signal of the electric braking disconnecting link is closes position, continue to judge that the fluted disc is surveyed
Whether the tach signal of fast probe measurement is more than first rotary speed threshold value；
S203：When being judged as NO, judge whether the tach signal of the unit is more than first rotary speed threshold value；
S204：When being judged as NO, output mechanical braking input instruction.
In the embodiment shown in Fig. 8, for the feedback signal of electric braking disconnecting link to close position, normally closed contact is separated, walks normal
Flow is shut down, mechanical braking is put into less than or equal to the first rotating speed (5% rotating speed).
Fig. 9 is the structural representation of the embodiment two of the step S107 in bitmap 7, referring to Fig. 9, in embodiment two
In, the step includes：
S301：Judge whether to receive the feedback signal of the GCB, the feedback signal of the fully closed sensor of the stator and
The feedback signal of the guide vane opening feedback transducer；
S302：When being judged as YES, judge whether the tach signal of the fluted disc speed measuring probe measurement is more than described second
Rotary speed threshold value；
S303：When being judged as NO, judge whether the tach signal of the unit is more than second rotary speed threshold value；
S304：When being judged as NO, whether the feedback signal for the electric braking disconnecting link for judging to receive is a point position；
S305：When being judged as YES, output mechanical braking input instruction.
In the embodiment shown in Fig. 9, the feedback signal of electric braking disconnecting link normally closed contact closure, is walked urgent to divide position
Flow is shut down, mechanical braking is put into less than or equal to the second rotating speed (20% rotating speed).
Above-mentioned embodiment one, embodiment two are control soft logic, in the other embodiment of the present invention, may be used also
So that embodiment one and the soft logic in embodiment two to be combined into one, a total control logic is formed.Specific real
Apply in example, mechanical braking input includes：
1) during orderly closedown, receive GCB feedback signal, (electric braking disconnecting link does not divide the feedback signal of electric braking disconnecting link
Open and close a floodgate, normally closed contact is separated), the feedback signal of the fully closed sensor of stator, independent speed measuring device measurement unit rotating speed
Signal is less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the tach signal for the unit that independent speed measuring device measures
Less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), turn of the fluted disc speed measuring probe measurement of speed regulator electricity commissioning amount
Fast signal is less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the fluted disc speed measuring probe of speed regulator electricity commissioning amount is surveyed
The tach signal of amount is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the guide vane opening of speed regulator electricity commissioning amount
During the feedback signal of feedback transducer, monitoring module soft logic sends the mechanical braking instruction of input, and instruction puts into mechanical braking,
In the totally stationary backed off after random mechanical braking of unit or it is always maintained at mechanical braking input；
2) during emergency shutdown, GCB feedback signal, the feedback signal of electric braking disconnecting link (DL2 points of electric braking disconnecting link are being received
Open, normally closed contact closure), the feedback signal of the fully closed sensor of stator, independent speed measuring device measurement unit tach signal it is small
In the rotating speed equal to the second rotary speed threshold value (such as 20% speed feedback signal), the fluted disc speed measuring probe measurement of speed regulator electricity commissioning amount
Signal is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the guide vane opening feedback sense of speed regulator electricity commissioning amount
The feedback signal of device, monitoring module soft logic send input instruction, put into mechanical braking.
Figure 10 is the structural representation of the embodiment three of the step S107 in bitmap 7, referring to Fig. 10, in embodiment
In three, the step includes：
S401：When receiving the feedback signal of the GCB, true signal is exported；
S402：When receiving the feedback signal of the fully closed sensor of the stator, true signal is exported；
S403：When receiving the feedback signal of the guide vane opening feedback transducer, true signal is exported；
S404：When the feedback signal of the electric braking disconnecting link is conjunction position and the tach signal of the fluted disc speed measuring probe measurement
During less than or equal to first rotary speed threshold value, true signal is exported；
S405：When the tach signal of the unit is less than or equal to first rotary speed threshold value, true signal is exported；
S406：The electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road are entered by magnetic valve UNICOM
The cavity of resorption of the brake simultaneously is allowed to jack up, and is fixed on the hydroenergy storage station below unit generation motor rotation part
Brake hoop friction, the pumped storage unit of the hydroenergy storage station is stopped to inactive state.
Figure 11 is the structural representation of the embodiment four of the step S107 in bitmap 7, Figure 11 is referred to, in embodiment
In four, the step includes：
S501：When receiving the feedback signal of the GCB, true signal is exported；
S502：When receiving the feedback signal of the fully closed sensor of the stator, true signal is exported；
S503：When receiving the feedback signal of the guide vane opening feedback transducer, true signal is exported；
S504：When the tach signal of the fluted disc speed measuring probe measurement is less than or equal to second rotary speed threshold value, output
True signal；
S505：When the tach signal of the unit is less than or equal to second rotary speed threshold value, true signal is exported；
S506：When the electric braking disconnecting link received feedback signal for point position when, export true signal；
S507：The electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road are entered by magnetic valve UNICOM
The cavity of resorption of the brake simultaneously is allowed to jack up, and is fixed on the hydroenergy storage station below unit generation motor rotation part
Brake hoop friction, the pumped storage unit of the hydroenergy storage station is stopped to inactive state.
In the particular embodiment, mechanical braking input includes：
1) during orderly closedown, receive GCB feedback signal, (electric braking disconnecting link does not divide the feedback signal of electric braking disconnecting link
Open and close a floodgate, normally closed contact is separated), the feedback signal of the fully closed sensor of stator, independent speed measuring device measurement unit rotating speed
Signal is less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the tach signal for the unit that independent speed measuring device measures
Less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), turn of the fluted disc speed measuring probe measurement of speed regulator electricity commissioning amount
Fast signal is less than or equal to the first rotary speed threshold value (such as 5% speed feedback signal), the fluted disc speed measuring probe of speed regulator electricity commissioning amount is surveyed
The tach signal of amount is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the guide vane opening of speed regulator electricity commissioning amount
During the feedback signal of feedback transducer, monitoring module hardwired logic sends the mechanical braking instruction of input, instruction input machinery
Braking, in the totally stationary backed off after random mechanical braking of unit or it is always maintained at mechanical braking input；
2) during emergency shutdown, GCB feedback signal, the feedback signal of electric braking disconnecting link (DL2 points of electric braking disconnecting link are being received
Open, normally closed contact closure), the feedback signal of the fully closed sensor of stator, independent speed measuring device measurement unit tach signal it is small
In the rotating speed equal to the second rotary speed threshold value (such as 20% speed feedback signal), the fluted disc speed measuring probe measurement of speed regulator electricity commissioning amount
Signal is less than or equal to the second rotary speed threshold value (such as 20% speed feedback signal), the guide vane opening feedback sense of speed regulator electricity commissioning amount
The feedback signal of device, monitoring module hardwired logic send input instruction, put into mechanical braking.
3) emergency shutdown hardwire speculates tool brake circuit, to avoid the soft logic electricity for monitoring module in emergency circumstances occur
Source Disappearance Scenarios, the present invention are designed with hardwire loop, even if the soft logic of monitoring module does not send input instruction extremely, connect firmly
The relay of line can also put into mechanical braking.
Above-mentioned embodiment three, embodiment four are hardwire control logic, in the other embodiment of the present invention
In, can also be by the hardwire control of the soft logic in embodiment one, embodiment two and embodiment three, four kinds of embodiment
Logic processed is combined into one, and forms a total control logic, control soft logic is with hardwire control logic simultaneously according to reception
The feedback signal of electric braking disconnecting link, GCB feedback signal, the feedback signal of the fully closed sensor of stator, unit tach signal, lead
The feedback signal of leaf open degree feedback sensor, the tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and second turn
Fast threshold value judges, output mechanical braking instruction.
It is as described above a kind of mechanical braking control method of pumped storage unit provided by the invention, can avoids monitoring
Hard loop direct plunges into mechanical braking and damaged in the case of unwitting, and increase speed regulator electricity adjusts the series connection of output speed signal only
Vertical speed measuring device tach signal, as input mechanical braking condition；Increase speed regulator electricity and adjust the fully closed signal of output guide blade, raising is led
The fully closed signal circuit reliability of leaf, hardwire loop and monitoring control logic are optimized, the fully closed signal of stator is by independent stator
Closed positions contact and speed regulator electricity, which are adjusted, judges that stator is connected less than fully closed signal, and speed regulator output speed signal is with independently testing the speed
Device signal is connected, and as the condition for judging input mechanical braking, optimizes hardwire and monitoring programme logic.
It should be noted that although describing the operation of the inventive method with particular order in the accompanying drawings, still, this is not required that
Or imply and must perform these operations according to the particular order, or the operation having to carry out shown in whole could realize the phase
The result of prestige.Additionally or alternatively, it is convenient to omit some steps, multiple steps are merged into a step and performed, and/or will
One step is decomposed into execution of multiple steps.
With reference to specific embodiment, technical scheme is discussed in detail.Figure 15 is pumped storage in specific embodiment
The schematic diagram of the mechanical braking control device of unit, Figure 12 are the mechanical braking control device of pumped storage unit in specific embodiment
Hardware connection figure, Figure 13 are the logic optimization flow chart of the mechanical braking control method of pumped storage unit in specific embodiment.It please join
Figure 15, Figure 12 and Figure 13 are read, in this specific embodiment, it is soft that mechanical braking control device includes the control from monitoring module
Logic, hardwire control loop, independent speed measuring device, the fully closed feedback signal of independent stator and loop and speed regulator rotating speed letter
Number and the fully closed signal of stator and loop, mechanical braking switch board, mechanical braking air supply system and brake.
In above-mentioned specific embodiment, feedback signal includes：GCB separating brakes feedback signal, electric braking knife feedback signal, solely
Vertical stator fully closed signal feedback signal, independent speed measuring device are less than or equal to 5% speed feedback signal, independent speed measuring device
It is less than or equal to 5% speed feedback signal, newly-increased less than or equal to what 20% speed feedback signal, newly-increased speed regulator electricity adjusted output
Speed regulator electricity adjusts the fully closed feedback letter of stator that output is adjusted less than or equal to 20% speed feedback signal, newly-increased speed regulator electricity of output
Number.
Control signal includes：What input mechanical braking control device signal, the monitoring module of monitoring module output exported moves back
Go out mechanical braking control device signal.
Hard-wired signals include：GCB separating brakes feedback signal, electric braking knife feedback signal, the fully closed signal of independent stator are anti-
Feedback signal, independent speed measuring device be less than or equal to 5% speed feedback signal, independent speed measuring device be less than or equal to 20% rotating speed it is anti-
Feedback signal, newly-increased speed regulator electricity adjust what is exported to adjust the small of output less than or equal to 5% speed feedback signal, newly-increased speed regulator electricity
In equal to 20% speed feedback signal, the fully closed feedback signal of stator of newly-increased speed regulator electricity tune output, monitoring system hardwire
The emergency shutdown input mechanical braking control signal of output.
It is anti-to monitoring module less than or equal to 20% signal that independent speed measuring device output speed is less than or equal to 5% signal and rotating speed
Feedback signal and hard-wired signals.Speed regulator electricity adjusts output speed to be less than or equal to 5% signal, rotating speed is less than or equal to 20% signal and leads
The fully closed signal of leaf is to monitoring system feedback signal and hard-wired signals.Mechanical braking switch board receives the input for carrying out self-monitoring system
With exit control signal, send input and exit the corresponding control valve of brake command signal operation, while provide mechanical system
The gas control brake of dynamic air supply system puts into and exited.Brake dust absorption plant automatic start when brake is put into absorbs
The friction dust of brake.
In this embodiment, from hardwire circuit diagram as shown in figure 12, when brake puts into valve coil
When, when the tach signal of the unit of independent speed measuring device measurement is less than or equal to 5%, KS26 closures, when speed regulator electricity adjusts collection
When the tach signal of fluted disc speed measuring probe measurement is less than or equal to 5%, KS25 closures, when the first acquisition module collects electric braking knife
During the feedback signal of lock, DL2 closures, when the tach signal of the unit of independent speed measuring device measurement is less than or equal to 20%, KS16
Closure, when speed regulator electricity adjusts the tach signal of the fluted disc speed measuring probe measurement of collection to be less than or equal to 20%, KS15 closures, when the
When two acquisition modules collect the feedback signal of the generator motor outlet breaker GCB in the hydroenergy storage station, KAE9
Closure, when the 3rd acquisition module gathers the feedback signal of the fully closed sensor of stator in the hydroenergy storage station, KAE2 is closed
Close, when speed regulator electricity adjusts the feedback signal of the guide vane opening feedback transducer collected in the hydroenergy storage station, KAE60
Closure.In addition, the D014 in Figure 12 outputs for monitoring module, when the control soft logic of the monitoring module in Figure 13 has mistake
When, D014 closures, button SB2 is so put into manually together with remote operation SB1 and execute-in-place SB1 and brake.
What the present invention was brought has the beneficial effect that：
There is the phenomenon that Pump Failure reverse reaches 100%, the skill of this Project-developing first in domestic Jiangxi flood screen
Art solves the problems, such as that pumped storage unit Pump Failure reversion band mechanical braking generating direction rotates.
The achievement in research of the present invention is respectively provided with the meaning implemented to all pumped storage units, can be pushed away in water-storage industry
It is wide to use.
One of ordinary skill in the art will appreciate that realize all or part of flow in above-described embodiment method, Ke Yitong
Computer program is crossed to instruct the hardware of correlation to complete, described program can be stored in general computer read/write memory medium
In, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be only
Read storage memory (Read-Only Memory, ROM) or random access memory (Random Access Memory, RAM)
Deng.
Those skilled in the art will also be appreciated that the various functions that the embodiment of the present invention is listed are by hardware or soft
Part depends on the design requirement of specific application and whole system to realize.Those skilled in the art can be for every kind of specific
Using, can be using the described function of various methods realization, but this realization is understood not to beyond guarantor of the embodiment of the present invention
The scope of shield.
Apply specific embodiment in the present invention to be set forth the principle and embodiment of the present invention, above example
Explanation be only intended to help understand the present invention method and its core concept；Meanwhile for those of ordinary skill in the art,
According to the thought of the present invention, there will be changes in specific embodiments and applications, in summary, in this specification
Appearance should not be construed as limiting the invention.
Claims (13)
1. a kind of mechanical braking control device of pumped storage unit, it is characterized in that, the mechanical braking control device is applied to draw water
Storage station, the mechanical braking control device include brake, mechanical braking supply air line, magnetic valve and automatically control dress
Put,
Wherein, the automaton includes：
First acquisition module, for gathering the feedback signal of the electric braking disconnecting link in the hydroenergy storage station；
Second acquisition module, for gathering the feedback letter of the generator motor outlet breaker GCB in the hydroenergy storage station
Number；
3rd acquisition module, for gathering the feedback signal of the fully closed sensor of stator in the hydroenergy storage station；
Independent speed measuring module, for measuring the tach signal of the unit in the hydroenergy storage station；
Speed regulator electricity is adjusted, for gathering the feedback signal and tooth of the guide vane opening feedback transducer in the hydroenergy storage station
The tach signal of disk holes probe measurement；
Threshold value acquisition module, for obtaining the first rotary speed threshold value and the second rotary speed threshold value set in advance, first rotating speed
Threshold value is less than second rotary speed threshold value；
Monitoring module, for the feedback signal of the electric braking disconnecting link in the hydroenergy storage station, GCB feedback signal,
The feedback signal of the fully closed sensor of stator, the tach signal of unit, the feedback signal of guide vane opening feedback transducer, fluted disc speed measuring
The tach signal of probe measurement, the first rotary speed threshold value and the output mechanical braking input instruction of the second rotary speed threshold value, so that described
Electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road enter the cavity of resorption of the brake simultaneously by magnetic valve UNICOM
It is allowed to jack up, the brake hoop friction below unit generation motor rotation part is fixed on the hydroenergy storage station, will
The pumped storage unit of the hydroenergy storage station stops to inactive state.
2. mechanical braking control device according to claim 1, it is characterized in that, the monitoring module includes：
First judge module, for judging whether to receive feedback signal, the feedback of the fully closed sensor of the stator of the GCB
The feedback signal of signal and the guide vane opening feedback transducer；
Second judge module, for when first judge module be judged as YES and the feedback signal of the electric braking disconnecting link for close
During position, continue to judge whether the tach signal of the fluted disc speed measuring probe measurement is more than first rotary speed threshold value；
3rd judge module, for when second judge module is judged as NO, judge the unit tach signal whether
More than first rotary speed threshold value；
First command output module, for when the 3rd judge module is judged as NO, output mechanical braking input to instruct.
3. mechanical braking control device according to claim 1, it is characterized in that, the monitoring module includes：
4th judge module, for judging whether to receive feedback signal, the feedback of the fully closed sensor of the stator of the GCB
The feedback signal of signal and the guide vane opening feedback transducer；
5th judge module, for when the 4th judge module is judged as YES, judging the fluted disc speed measuring probe measurement
Whether tach signal is more than second rotary speed threshold value；
6th judge module, for when the 5th judge module is judged as NO, judge the unit tach signal whether
More than second rotary speed threshold value；
7th judge module, for when the 6th judge module is judged as NO, judging the electric braking disconnecting link received
Feedback signal whether be a point position；
Second command output module, for when the 7th judge module is judged as YES, output mechanical braking input to instruct.
4. the mechanical braking control device according to Claims 2 or 3, it is characterized in that, the monitoring module also includes：
First relay, for when the tach signal of the unit is less than or equal to first rotary speed threshold value, exporting true signal；
Second relay, for being conjunction position and turn of the fluted disc speed measuring probe measurement when the feedback signal of the electric braking disconnecting link
When fast signal is less than or equal to first rotary speed threshold value, true signal is exported；
3rd relay, for when receiving the feedback signal of the GCB, exporting true signal；
4th relay, for when receiving the feedback signal of the fully closed sensor of the stator, exporting true signal；
5th relay, for when receiving the feedback signal of the guide vane opening feedback transducer, exporting true signal；
The mechanical braking control piper, for when first relay, the second relay, the 3rd relay, the 4th relay
When the output of device and the 5th relay is true signal, make the electromagnetism valve events, in control machinery brake air supply pipe road
Low pressure gas enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to jack up, and machine is fixed on the hydroenergy storage station
Brake hoop friction below group generator motor rotatable parts, the pumped storage unit of the hydroenergy storage station is stopped to static shape
State.
5. mechanical braking control device according to claim 4, it is characterized in that, the monitoring module also includes：
6th relay, for when the electric braking disconnecting link received feedback signal for point position when, export true signal；
7th relay, for when the tach signal of the unit is less than or equal to second rotary speed threshold value, exporting true signal；
8th relay, it is less than or equal to second rotary speed threshold value for the tach signal when the fluted disc speed measuring probe measurement
When, export true signal；
The mechanical braking control piper, for when the 6th relay, the 7th relay, the 8th relay, the 3rd relay
When the output of device, the 4th relay and the 5th relay is true signal, make the electromagnetism valve events, control machinery braking supplies
Low pressure gas in air pipe enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to jack up, with water-storage electricity
Station is fixed on the brake hoop friction below unit generation motor rotation part, by the pumped storage unit of the hydroenergy storage station
Stop to inactive state.
6. mechanical braking control device according to claim 5, it is characterized in that, the mechanical braking control device also includes
Brake dust absorption plant, for absorbing the friction dust of the brake.
7. the machinery that a kind of mechanical braking control device by described in claim 1 to 6 any one carries out pumped storage unit is made
The method of dynamic control, it is characterized in that, methods described is applied to hydroenergy storage station, and methods described includes：
Gather the feedback signal of the generator motor outlet breaker GCB in the hydroenergy storage station；
Gather the feedback signal of the fully closed sensor of stator in the hydroenergy storage station；
Speed regulator electricity adjusts the feedback signal for gathering the guide vane opening feedback transducer in the hydroenergy storage station and fluted disc to survey
The tach signal of fast probe measurement；
Gather the feedback signal of the electric braking disconnecting link in the hydroenergy storage station；
Independent speed measuring module measures the tach signal of the unit in the hydroenergy storage station；
The first rotary speed threshold value and the second rotary speed threshold value set in advance are obtained, first rotary speed threshold value is less than described second turn
Fast threshold value；
The feedback signal of electric braking disconnecting link in the hydroenergy storage station, GCB feedback signal, the fully closed sensor of stator
Feedback signal, the tach signal of unit, the feedback signal of guide vane opening feedback transducer, the rotating speed of fluted disc speed measuring probe measurement
Signal, the first rotary speed threshold value or the output mechanical braking input instruction of the second rotary speed threshold value, so that the electromagnetism valve events, control machine
Low pressure gas in tool brake air supply pipe road enters the cavity of resorption of the brake by magnetic valve UNICOM and is allowed to jack up, and is taken out with described
Water storage station is fixed on the brake hoop friction below unit generation motor rotation part, by the hydroenergy storage station
Pumped storage unit stops to inactive state.
8. mechanical braking control method according to claim 7, it is characterized in that, according to the electricity in the hydroenergy storage station
The feedback signal of braking disconnecting link, GCB feedback signal, the feedback signal of the fully closed sensor of stator, tach signal, the stator of unit
The feedback signal of open degree feedback sensor, the tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and the second rotating speed
Threshold value output mechanical braking instruction includes：
Judge whether to receive the feedback signal of the GCB, the feedback signal of the fully closed sensor of the stator and the stator
The feedback signal of open degree feedback sensor；
When being judged as YES and the feedback signal of the electric braking disconnecting link is closes position, continue to judge the fluted disc speed measuring probe measurement
Tach signal whether be more than first rotary speed threshold value；
When being judged as NO, judge whether the tach signal of the unit is more than first rotary speed threshold value；
When being judged as NO, output mechanical braking input instruction.
9. mechanical braking control method according to claim 7, it is characterized in that, according to the electricity in the hydroenergy storage station
The feedback signal of braking disconnecting link, GCB feedback signal, the feedback signal of the fully closed sensor of stator, tach signal, the stator of unit
The feedback signal of open degree feedback sensor, the tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and the second rotating speed
Threshold value output mechanical braking instruction also includes：
Judge whether to receive the feedback signal of the GCB, the feedback signal of the fully closed sensor of the stator and the stator
The feedback signal of open degree feedback sensor；
When being judged as YES, judge whether the tach signal of the fluted disc speed measuring probe measurement is more than second rotary speed threshold value；
When being judged as NO, judge whether the tach signal of the unit is more than second rotary speed threshold value；
When being judged as NO, whether the feedback signal for the electric braking disconnecting link for judging to receive is a point position；
When being judged as YES, output mechanical braking input instruction.
10. mechanical braking control method according to claim 8 or claim 9, it is characterized in that, according in the hydroenergy storage station
The feedback signal of electric braking disconnecting link, GCB feedback signal, the feedback signal of the fully closed sensor of stator, unit tach signal,
The feedback signal of guide vane opening feedback transducer, the tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and second
Rotary speed threshold value output mechanical braking instruction also includes：
When receiving the feedback signal of the GCB, true signal is exported；
When receiving the feedback signal of the fully closed sensor of the stator, true signal is exported；
When receiving the feedback signal of the guide vane opening feedback transducer, true signal is exported；
When the feedback signal of the electric braking disconnecting link is less than or equal to close the tach signal of position and the fluted disc speed measuring probe measurement
During first rotary speed threshold value, true signal is exported；
When the tach signal of the unit is less than or equal to first rotary speed threshold value, true signal is exported；
The electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road enter the brake by magnetic valve UNICOM
Cavity of resorption and be allowed to jack up, the brake hoop being fixed on the hydroenergy storage station below unit generation motor rotation part rubs
Wipe, the pumped storage unit of the hydroenergy storage station is stopped to inactive state.
11. mechanical braking control method according to claim 10, it is characterized in that, according in the hydroenergy storage station
The feedback signal of electric braking disconnecting link, GCB feedback signal, the feedback signal of the fully closed sensor of stator, unit tach signal, lead
The feedback signal of leaf open degree feedback sensor, the tach signal of fluted disc speed measuring probe measurement, the first rotary speed threshold value and second turn
Fast threshold value output mechanical braking instruction also includes：
When receiving the feedback signal of the GCB, true signal is exported；
When receiving the feedback signal of the fully closed sensor of the stator, true signal is exported；
When receiving the feedback signal of the guide vane opening feedback transducer, true signal is exported；
When the tach signal of the fluted disc speed measuring probe measurement is less than or equal to second rotary speed threshold value, true signal is exported；
When the tach signal of the unit is less than or equal to second rotary speed threshold value, true signal is exported；
When the electric braking disconnecting link received feedback signal for point position when, export true signal；
The electromagnetism valve events, the low pressure gas in control machinery brake air supply pipe road enter the brake by magnetic valve UNICOM
Cavity of resorption and be allowed to jack up, the brake hoop being fixed on the hydroenergy storage station below unit generation motor rotation part rubs
Wipe, the pumped storage unit of the hydroenergy storage station is stopped to inactive state.
12. mechanical braking control method according to claim 11, it is characterized in that, the mechanical braking control method is also wrapped
Include the friction dust for absorbing the brake.
13. a kind of novel mechanical braking control system of pumped storage unit, it is characterized in that, the mechanical braking control of the pumped storage unit
System includes the novel mechanical braking control of hydroenergy storage station and the pumped storage unit as described in claim 1 to 6 any one
Device processed.
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| CN109361329A (en) * | 2018-11-29 | 2019-02-19 | 华自科技股份有限公司 | Medium-and-large-sized braking system system and method |
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| CN113339183A (en) * | 2021-06-10 | 2021-09-03 | 江西省港航建设投资集团有限公司 | Shutdown control method and device for hydroelectric generating set and shutdown control equipment |
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