CN108054788A - A kind of peak load shifting apparatus control method - Google Patents
A kind of peak load shifting apparatus control method Download PDFInfo
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- CN108054788A CN108054788A CN201711400409.2A CN201711400409A CN108054788A CN 108054788 A CN108054788 A CN 108054788A CN 201711400409 A CN201711400409 A CN 201711400409A CN 108054788 A CN108054788 A CN 108054788A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06312—Adjustment or analysis of established resource schedule, e.g. resource or task levelling, or dynamic rescheduling
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06315—Needs-based resource requirements planning or analysis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Systems or methods specially adapted for specific business sectors, e.g. utilities or tourism
- G06Q50/06—Electricity, gas or water supply
Abstract
The invention discloses a kind of peak load shifting apparatus control method, this method includes：（1）According to the species for the peak load shifting device that grid power unbalanced duration, judgement should use；（2）Peak load shifting device is controlled according to the safe and stable operation of operating status.A kind of peak load shifting apparatus control method provided by the invention, the uneven time based on electric power, selection is to realize power balance using accumulator group or realize power balance using pump-storage generator, ensure that accumulator group can operate in suitable environment always, its service life is extended, while also achieves according to the situation of pump-storage generator, upper and lower reservoir to realize the interaction between unit and scheduling.
Description
Technical field
The present invention relates to a kind of control method of peak load shifting device, especially one kind can ensure the peak load shifting device longevity
It orders and achieves the control method of stable operation.
Background technology
Load in changing at any time in power grid, and usually the switching on and shutting down of power supply and output are according to meter in power grid
Draw what is performed, thus in order to ensure in power grid electric power can Real-time Balancing so that power grid is constantly in safe and stable fortune
Row is, it is necessary to set peak load shifting device to carry out electric energy supplement or absorb electric energy.
However, the existing method for peak load shifting does not consider the performance between various different devices, such as
Response speed, how the service life for also not accounting for device is protected, such as the optimum range of operation, in addition,
There are no it is abundant the considerations of the stable operation of device demand.
The content of the invention
Therefore, in view of the above-mentioned problems, the present invention provides a kind of peak load shifting apparatus control method, the injustice based on electric power
It weighs the time, selection is to realize power balance using accumulator group or realize power balance using pump-storage generator, is ensured
Accumulator group can operate in suitable environment always, extend its service life, at the same also achieve according to pump-storage generator,
The situation of upper and lower reservoir realizes the interaction between unit and scheduling, not only receives the instruction of scheduling, while also realizes urgent
From control, and then it is capable of the stabilization of real-time implementation itself, avoids delaying adjustment opportunity.
In order to achieve the above object, the present invention proposes a kind of peak load shifting apparatus control method, and this method includes：
(1) species for the peak load shifting device that should be used according to grid power unbalanced duration, judgement；
(2) peak load shifting device is controlled according to the safe and stable operation of operating status.
The peak load shifting apparatus control method, also meets condition, and the step (1) includes：It is complete in acquisition power grid in real time
The loaded active demand of active power output and institute of portion's power supply, and the two is compared, when the active power output of power supply is less than
During the active demand of load, control accumulator group is operated in discharge condition, and then makes up the active demand of load and having for power supply
Difference between work(output；In the case where accumulator group is operated in discharge condition, born when the active power output of power supply continues to be less than
The active demand that carries and when continuing first predetermined time, control pump-storage generator is operated in generator operation state, same to time control
Accumulator group processed is stopped, so that the electricity of accumulator group is maintained at more than 30%；When the active power output of power supply is more than
During the active demand of load, control accumulator group is operated in charged state, and then makes up the active power output of power supply and having for load
Difference between work(demand；In the case where accumulator group is operated in charged state, born when the active power output of power supply is persistently more than
The active demand that carries and when continuing second predetermined time, control pump-storage generator is operated in operating status of drawing water, same to time control
Accumulator group processed is stopped, so that the electricity of accumulator group is maintained at less than 50%.
The peak load shifting apparatus control method, also meets condition, and the step (2) includes：
When pump-storage generator is operated in generator operation state, following steps are performed：
1) upper and lower reservoir level and storage capacity are detected in the predetermined time and testing result is sent to scheduling；
2) hydraulic observation database is based on, the adjustable electrical generation water of upper and lower reservoir is calculated according to upper and lower reservoir water-holding quantity
Amount；
Judge whether lower storage reservoir is accounted for part libraries appearance because of natural water, cause situation about being closed in floodgate
Under, lower storage reservoir cannot accommodate all water amount of power generating of upper storage reservoir completely, should if it is alarm immediately so notify related personnel into
Row processing, and send warning message to scheduling；
3) based on hydraulic observation database, adjustable power generation water-holding quantity is calculated according to the variation of upper and lower reservoir level, is obtained in real time
Take permission run time of the generator operation unit under current loads level, and by the permission run time be sent to scheduling and
Related personnel；
4) upper storage reservoir water level is detected in real time during unit generation is run, when upper storage reservoir water level is reduced to low water level level-one report
During alert position, notice scheduling is had begun using emergency use storage capacity, while monitors the distribution situation of generator operation unit, is avoided
Generator operation unit excessively concentrates on a certain position, whirlpool occurs so as to cause upper storage reservoir water inlet, final to influence unit and water
The safety of work building；In certain unit load, when available water amount of power generating often reduces by 500,000 side to scheduling and related
Personnel send warning message；
When upper storage reservoir water level is reduced to low water level secondary alarm position, calculates and generate electricity at that time under total load, it is remaining
The generator operation unit operation time, and the time is sent to scheduling request scheduling arrangement simultaneously and is shut down, and check upper and lower reservoir
Water surface situation；
When upper storage reservoir water level is reduced to low water level three-level alert locations, notice scheduling is as early as possible so that all in power generation fortune
Capable unit is out of service；
When upper storage reservoir water level is reduced to level of dead water, all generating sets is forbidden to run immediately；
5) closed in lower storage reservoir floodgate, when reservoir level rises to high water level level-one alert locations instantly,
It calculates and generates electricity at that time under total load, remaining generating set run time, and the time is sent to scheduling and relevant people
Member, while detects the distribution situation of generator operation unit, when available water amount of power generating often reduces by 500,000 side to dispatching and relevant people
Member sends warning message；
6) during lower storage reservoir floodgate is opened, when reservoir level is risen to close to flood discharge water level instantly, according at that time
The total load estimation that generates electricity starts the time of flood discharge, which is sent to related personnel；Instantly reservoir level rises to flood discharge water
During position, lower storage reservoir flood discharge situation is monitored immediately, and situation is sent to related personnel.
The peak load shifting apparatus control method, also meets condition, and the step (2) further includes：
When pump-storage generator, which is operated in, draws water operating status, following steps are performed：
1) upper storage reservoir effective storage is gone out based on the upper and lower reservoir level material computation of telemetering in another predetermined time；In judgement
Whether reservoir is accounted for part libraries appearance because of natural water, causes that all waters of drawing water of lower storage reservoir cannot be accommodated completely, if
It is, should alarm immediately and then related personnel is notified to be handled, and warning message is sent to scheduling；
2) based on hydraulic observation database, according to the variation of upper and lower reservoir level calculate can pump-out, obtain draw water in real time
The permission run time of unit, and the permission run time is sent to scheduling and related personnel in real time；
3) lower storage reservoir water level is detected in real time during unit water pump operation, reservoir level is down to another low water level level-one instantly
During alert locations, calculating allows run time, and the time is sent to scheduling, and request scheduling is arranged to shut down as early as possible, supervised simultaneously
The distribution situation of unit of drawing water is surveyed, the unit that avoids drawing water excessively concentrates on a certain position, goes out so as to which diversion plays lower storage reservoir water inlet
Existing whirlpool, the final safety for influencing unit and hydraulic structure；
Instantly when reservoir level is reduced to another low water level secondary alarm position, notice scheduling is as early as possible so that all in pumping
The unit of water is out of service；
Instantly when reservoir level is reduced to level of dead water, the unit of all operations of drawing water is forbidden immediately；
4) when upper storage reservoir water level is risen to close to when overflowing full factory's stop position, calculating drew water ran under unit quantity at that time
Scheduling and related personnel are sent to the time of peak level, and by the time, when available water of drawing water often reduces by 500,000 side
Warning message is sent to scheduling and related personnel；
5) periodically the water level that SCADA system is shown and hydraulic observation network data are compared, is missed when the two exists
When poor, related personnel's field review is notified, prevent upper storage reservoir flood-relief channel leak；
6) when upper storage reservoir water level, which rises to, overflows full factory's stop position, unit is forbidden to draw water operation.
Description of the drawings
Fig. 1 is the flow chart of peak load shifting apparatus control method.
Specific embodiment
A kind of peak load shifting apparatus control method, this method include：
(1) species for the peak load shifting device that should be used according to grid power unbalanced duration, judgement；
The loaded active demand of the active power output of all power and institute in acquisition power grid in real time, and the two is compared
Compared with when the active power output of power supply is less than the active demand of load, control accumulator group is operated in discharge condition, and then makes up negative
Difference between the active demand and the active power output of power supply that carry；In the case where accumulator group is operated in discharge condition, work as electricity
When the active power output in source continues the active demand less than load and continues first predetermined time, control pump-storage generator work
In generator operation state, while accumulator group is controlled to be stopped, so that the electricity of accumulator group is maintained at more than 30%；
When the active power output of power supply is more than the active demand of load, control accumulator group is operated in charged state, and then makes up power supply
Active power output and load active demand between difference；In the case where accumulator group is operated in charged state, work as power supply
Active power output be persistently more than the active demand of load and when continuing second predetermined time, control pump-storage generator is operated in
It draws water operating status, while accumulator group is controlled to be stopped, so that the electricity of accumulator group is maintained at less than 50%；
(2) peak load shifting device is controlled according to the safe and stable operation of operating status；
When pump-storage generator is operated in generator operation state, following steps are performed：
1) upper and lower reservoir level and storage capacity are detected in the predetermined time and testing result is sent to scheduling；
2) hydraulic observation database is based on, the adjustable electrical generation water of upper and lower reservoir is calculated according to upper and lower reservoir water-holding quantity
Amount；
Judge whether lower storage reservoir is accounted for part libraries appearance because of natural water, cause situation about being closed in floodgate
Under, lower storage reservoir cannot accommodate all water amount of power generating of upper storage reservoir completely, should if it is alarm immediately so notify related personnel into
Row processing, and send warning message to scheduling；
3) based on hydraulic observation database, adjustable power generation water-holding quantity is calculated according to the variation of upper and lower reservoir level, is obtained in real time
Take permission run time of the generator operation unit under current loads level, and by the permission run time be sent to scheduling and
Related personnel；
4) upper storage reservoir water level is detected in real time during unit generation is run, when upper storage reservoir water level is reduced to low water level level-one report
During alert position, notice scheduling is had begun using emergency use storage capacity, while monitors the distribution situation of generator operation unit, is avoided
Generator operation unit excessively concentrates on a certain position, whirlpool occurs so as to cause upper storage reservoir water inlet, final to influence unit and water
The safety of work building；In certain unit load, when available water amount of power generating often reduces by 500,000 side to scheduling and related
Personnel send warning message；
When upper storage reservoir water level is reduced to low water level secondary alarm position, calculates and generate electricity at that time under total load, it is remaining
The generator operation unit operation time, and the time is sent to scheduling request scheduling arrangement simultaneously and is shut down, and check upper and lower reservoir
Water surface situation；
When upper storage reservoir water level is reduced to low water level three-level alert locations, notice scheduling is as early as possible so that all in power generation fortune
Capable unit is out of service；
When upper storage reservoir water level is reduced to level of dead water, all generating sets is forbidden to run immediately；
5) closed in lower storage reservoir floodgate, when reservoir level rises to high water level level-one alert locations instantly,
It calculates and generates electricity at that time under total load, remaining generating set run time, and the time is sent to scheduling and relevant people
Member, while detects the distribution situation of generator operation unit, when available water amount of power generating often reduces by 500,000 side to dispatching and relevant people
Member sends warning message；
6) during lower storage reservoir floodgate is opened, when reservoir level is risen to close to flood discharge water level instantly, according at that time
The total load estimation that generates electricity starts the time of flood discharge, which is sent to related personnel；Instantly reservoir level rises to flood discharge water
During position, lower storage reservoir flood discharge situation is monitored immediately, and situation is sent to related personnel；
When pump-storage generator, which is operated in, draws water operating status, following steps are performed：
1) upper storage reservoir effective storage is gone out based on the upper and lower reservoir level material computation of telemetering in another predetermined time；In judgement
Whether reservoir is accounted for part libraries appearance because of natural water, causes that all waters of drawing water of lower storage reservoir cannot be accommodated completely, if
It is, should alarm immediately and then related personnel is notified to be handled, and warning message is sent to scheduling；
2) based on hydraulic observation database, according to the variation of upper and lower reservoir level calculate can pump-out, obtain draw water in real time
The permission run time of unit, and the permission run time is sent to scheduling and related personnel in real time；
3) lower storage reservoir water level is detected in real time during unit water pump operation, reservoir level is down to another low water level level-one instantly
During alert locations, calculating allows run time, and the time is sent to scheduling, and request scheduling is arranged to shut down as early as possible, supervised simultaneously
The distribution situation of unit of drawing water is surveyed, the unit that avoids drawing water excessively concentrates on a certain position, goes out so as to which diversion plays lower storage reservoir water inlet
Existing whirlpool, the final safety for influencing unit and hydraulic structure；
Instantly when reservoir level is reduced to another low water level secondary alarm position, notice scheduling is as early as possible so that all in pumping
The unit of water is out of service；
Instantly when reservoir level is reduced to level of dead water, the unit of all operations of drawing water is forbidden immediately；
4) when upper storage reservoir water level is risen to close to when overflowing full factory's stop position, calculating drew water ran under unit quantity at that time
Scheduling and related personnel are sent to the time of peak level, and by the time, when available water of drawing water often reduces by 500,000 side
Warning message is sent to scheduling and related personnel；
5) periodically the water level that SCADA system is shown and hydraulic observation network data are compared, is missed when the two exists
When poor, related personnel's field review is notified, prevent upper storage reservoir flood-relief channel leak；
6) when upper storage reservoir water level, which rises to, overflows full factory's stop position, unit is forbidden to draw water operation.
It is it should be noted that made for the present invention further specifically the above content is specific embodiment is combined
It is bright, it is impossible to assert that the specific embodiment of the present invention is only limitted to this, under the above-mentioned guidance of the present invention, those skilled in the art can
To carry out various improvement and deformation on the basis of above-described embodiment, and these are improved or deformation falls in protection model of the invention
In enclosing.
Claims (4)
1. a kind of peak load shifting apparatus control method, this method include：
（1）According to the species for the peak load shifting device that grid power unbalanced duration, judgement should use；
（2）Peak load shifting device is controlled according to the safe and stable operation of operating status.
2. peak load shifting apparatus control method according to claim 2, which is characterized in that the step（1）Including：In real time
The loaded active demand of the active power output of all power and institute in power grid is gathered, and the two is compared, when power supply
When active power output is less than the active demand of load, control accumulator group is operated in discharge condition, and then makes up the active need of load
Seek the difference between the active power output of power supply；In the case where accumulator group is operated in discharge condition, when power supply it is active go out
When power continues the active demand less than load and continues first predetermined time, control pump-storage generator is operated in generator operation
State, while accumulator group is controlled to be stopped, so that the electricity of accumulator group is maintained at more than 30%；When having for power supply
When work(is contributed more than the active demand loaded, control accumulator group is operated in charged state, and then makes up the active power output of power supply
Difference between the active demand of load；In the case where accumulator group is operated in charged state, when the active power output of power supply
When being persistently more than the active demand of load and continuing second predetermined time, control pump-storage generator is operated in the operation shape that draws water
State, while accumulator group is controlled to be stopped, so that the electricity of accumulator group is maintained at less than 50%.
3. peak load shifting apparatus control method according to claim 2, which is characterized in that the step（2）Including：
When pump-storage generator is operated in generator operation state, following steps are performed：
1）Upper and lower reservoir level and storage capacity are detected in the predetermined time and testing result is sent to scheduling；
2）Based on hydraulic observation database, the adjustable water amount of power generating of upper and lower reservoir is calculated according to upper and lower reservoir water-holding quantity；Sentence
Whether disconnected lower storage reservoir is accounted for part libraries appearance because of natural water, is caused in the case where floodgate is closed, lower storage reservoir is not
All water amount of power generating of upper storage reservoir can be accommodated completely, should if it is alarm immediately and then related personnel is notified to be handled, and to
Scheduling sends warning message；
3）Based on hydraulic observation database, adjustable power generation water-holding quantity is calculated according to the variation of upper and lower reservoir level, obtains hair in real time
Permission run time of the electricity operation unit under current loads level, and the permission run time is sent to scheduling and correlation
Personnel；
4）Upper storage reservoir water level is detected in real time during unit generation is run, when upper storage reservoir water level is reduced to low water level level-one alarm bit
When putting, notice scheduling is had begun using emergency use storage capacity, while monitors the distribution situation of generator operation unit, avoids generating electricity
Operating unit excessively concentrates on a certain position, whirlpool occurs so as to cause upper storage reservoir water inlet, and final influence unit and water conservancy project are built
Build the safety of object；In certain unit load, when available water amount of power generating often reduces by 500,000 side to scheduling and related personnel
Send warning message；It when upper storage reservoir water level is reduced to low water level secondary alarm position, calculates and generates electricity at that time under total load, remain
The remaining generator operation unit operation time, and the time is sent to scheduling request scheduling arrangement simultaneously and is shut down, and check upper and lower
Reservoir water surface situation；When upper storage reservoir water level is reduced to low water level three-level alert locations, notice scheduling is as early as possible so that all be in
The unit of generator operation is out of service；When upper storage reservoir water level is reduced to level of dead water, all generating sets is forbidden to run immediately；
5）It closes in lower storage reservoir floodgate, when reservoir level rises to high water level level-one alert locations instantly, calculates
It generates electricity at that time under total load, remaining generating set run time, and the time is sent to scheduling and related personnel, together
When detect the distribution situation of generator operation unit, when available water amount of power generating often reduces by 500,000 side to scheduling and related personnel's transmission
Warning message；
6）During lower storage reservoir floodgate is opened, when reservoir level is risen to close to flood discharge water level instantly, according to generating electricity at that time
Total load estimation starts the time of flood discharge, which is sent to related personnel；Instantly when reservoir level rises to flood discharge water level,
Lower storage reservoir flood discharge situation is monitored immediately, and situation is sent to related personnel.
4. peak load shifting apparatus control method according to claim 3, the step（2）It further includes：
When pump-storage generator, which is operated in, draws water operating status, following steps are performed：
1）Upper storage reservoir effective storage is gone out based on the upper and lower reservoir level material computation of telemetering in another predetermined time；Judge upper storage reservoir
Part libraries appearance whether is accounted for because of natural water, causes that all waters of drawing water of lower storage reservoir cannot be accommodated completely, if it is
It should alarm immediately and then related personnel is notified to be handled, and warning message is sent to scheduling；
2）Based on hydraulic observation database, according to the variation of upper and lower reservoir level calculate can pump-out, obtain the unit that draws water in real time
Permission run time, and the permission run time is sent to scheduling and related personnel in real time；
3）Detect lower storage reservoir water level in real time during unit water pump operation, reservoir level is down to another low water level level-one alarm instantly
During position, calculating allows run time, and the time is sent to scheduling, and request scheduling arranges to shut down as early as possible, while monitors pumping
The distribution situation of water dispenser group, the unit that avoids drawing water excessively concentrate on a certain position, whirlpool occur so as to which diversion plays lower storage reservoir water inlet
Whirlpool, the final safety for influencing unit and hydraulic structure；Instantly when reservoir level is reduced to another low water level secondary alarm position,
Notice scheduling is as early as possible so that all out of service in the unit to draw water；Instantly when reservoir level is reduced to level of dead water, prohibit immediately
The only unit of all operations of drawing water；
4）When upper storage reservoir water level is risen to close to when overflowing full factory's stop position, calculating drew water under unit quantity operation to most at that time
Time of high water level, and the time is sent to scheduling and related personnel, when available water of drawing water often reduces by 500,000 side to tune
Degree and related personnel send warning message；
5）Periodically the water level that SCADA system is shown and hydraulic observation network data are compared, when the two is there are during error,
It notifies related personnel's field review, prevents upper storage reservoir flood-relief channel leak；
6）When upper storage reservoir water level, which rises to, overflows full factory's stop position, unit is forbidden to draw water operation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108258705A (en) * | 2018-02-01 | 2018-07-06 | 山东诺源动力设备有限公司 | A kind of stable progress control method of pump-storage generator |
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