CN109390951A - A kind of idle distribution method of thermal power plant of adaptive bus running manner - Google Patents
A kind of idle distribution method of thermal power plant of adaptive bus running manner Download PDFInfo
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- CN109390951A CN109390951A CN201811207976.0A CN201811207976A CN109390951A CN 109390951 A CN109390951 A CN 109390951A CN 201811207976 A CN201811207976 A CN 201811207976A CN 109390951 A CN109390951 A CN 109390951A
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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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
- H02J3/16—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by adjustment of reactive power
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- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
A kind of thermal power plant's idle distribution method of adaptive bus running manner proposed by the present invention under bus paired running state, obtains two all units of the bus second line of a couplet as control object, by the idle increment Q of full factoryIncrementIt is averagely allocated to each control object；Under bus splitting state, the first bus second line of a couplet unit of statistics counts the second bus second line of a couplet unit as the second control object as the first control object；By the idle increment Q1 of the first busIncrementIt is averagely allocated to each first control object, by the idle increment Q2 of the second busIncrementIt is averagely allocated to each second control object.The present invention realizes automatic identification thermal power plant bus operating status, and adjusts unit allocation mode according to thermal power plant's bus operating status, to achieve the purpose that unit acting real-time adaptive bus running manner, guarantees that electricity net safety stable is simultaneously economically run.
Description
Technical field
The present invention relates to power plant management technical field more particularly to a kind of thermal power plant of adaptive bus running manner are idle
Distribution method.
Background technique
With the investment of electricity generation unit and the formation of supergrid.The importance of voltage indexes is also increasingly prominent
Out.Effective idle and voltage controls, and grid power quality not only can be improved, enhance the security and stability of Operation of Electric Systems,
And network loss can be reduced, give full play to the economic benefit of power grid.Therefore voltage is not only an important finger of grid power quality
Mark, and be an important factor for guaranteeing bulk power grid safe and stable operation and economical operation.Modern power network scale is increasing, trend
Complex flow, it is very difficult that manual control realizes that voltage and reactive power flow meet above-mentioned requirements, it is necessary to it is voltage-controlled to implement automatic electric
System (AVC) automatically adjusts to grid generator reactive power using advanced computer and the communication technology, guarantees power grid
Voltage and reactive power distribution are met the requirements.
Thermal power plant's voltage automatically controls (AVC) system by the reactive power of adjusting fired power generating unit, can make thermal power plant
Busbar voltage is stablized in the given voltage range of scheduling.But it is past that thermal power plant's voltage of existing mainstream automatically controls (AVC) system
Toward certain method of operation only for power plant, when power plant's bus running manner changes, AVC system cannot adaptive bus fortune
Line mode does not judge the connection relationship between unit and bus, is controlled according further to the original method of operation, this is resulted in
To the error control of unit.
Summary of the invention
Technical problems based on background technology, the invention proposes a kind of thermal power plants of adaptive bus running manner
Idle distribution method.
A kind of idle distribution method of thermal power plant of adaptive bus running manner proposed by the present invention, comprising the following steps:
S1, thermal power plant's electric information is obtained, including switch tool, busbar voltage, unit are active, unit is idle and generator terminal is electric
Press signal；
S2, judge that bus is paired running or split operation；
Under bus paired running state, following steps are executed:
S3, the idle increment Q that full factory is calculated according to busbar voltageIncrement；
S4, two all units of the bus second line of a couplet are obtained as control object, by the idle increment Q of full factoryIncrementIt is averagely allocated to
Each control object；
Under bus splitting state, following steps are executed:
S5, it is calculated according to the voltage of the first bus needed for the idle increment Q1 of the first busIncrement, and according to the second bus
Voltage calculate the idle increment Q2 of the second busIncrement；
S6, the first bus second line of a couplet unit of statistics count the second bus second line of a couplet unit as second as the first control object
Control object；
S7, by the idle increment Q1 of the first busIncrementIt is averagely allocated to each first control object, by the idle increment of the second bus
Q2IncrementIt is averagely allocated to each second control object.
Preferably, in step S2, information is opened and closed according to bus connection switch, judges the operational mode of bus.
Preferably, in step S4, the unit being electrically connected with any bus is included in control object.
Preferably, in step S4 control object statistical method are as follows: establish control set, successively judge each unit connection the
The state of the disconnecting link of one bus and/or the second bus, if unit connects the disconnecting link closure or unit connection the of the first bus
The disconnecting link of two buses is closed, then unit is included in control set；After the completion of the disconnecting link status checkout of all units, control is obtained
All units in set are as control object.
Preferably, in step S4 control object statistical method are as follows: establish control set, units all in factory are charged to
Control set；Then, unit in inspection factory, by the unit being separated with the connection disconnecting link of the first bus and the second bus from control
It is deleted in set；In factory after the completion of set cycle checking, using all units in control set as control object.
Preferably, in step S4 further include: make the unit being separated with the connection disconnecting link of the first bus and the second bus
It is marked for abnormal unit.
Preferably, step S6 specifically: establish the first control set and second respectively for the first bus and the second bus
Control set, will be closed with the connection disconnecting link of the first bus and the unit separated with the connection disconnecting link of the second bus charges to the first control
System set is used as the first control object, by what is separated with the connection disconnecting link of the second bus closure and with the connection disconnecting link of the first bus
It is the second control object that unit, which charges to the second domination set cooperation,.
Preferably, in step S6 further include: by the unit being separated with the connection disconnecting link of the first bus and the second bus with
And the unit being closed with the connection disconnecting link of the first bus and the second bus is marked as abnormal unit.
Preferably, under bus paired running state, two buses label 0, any all machine group echos 0 of the bus second line of a couplet,
The unit of label 0 is obtained in step S4 as control object, remaining unit is as abnormal unit label 3；Bus splitting
Under state, the first bus label 1, first all units of the bus second line of a couplet label 1；Second bus label 2, the second bus second line of a couplet institute
There is unit label 2；In step S6, the unit of label 1 is counted respectively as the first control object, the unit of label 2 is as the
Two control objects, remaining unit is as abnormal unit label 3.
Preferably, further include step S20: establishing abnormal set；Step S4 further include: will be with the first bus and the second bus
The unit that is separated of connection disconnecting link charge to abnormal set；Step S6 further include: by the connection with the first bus and the second bus
Unit that disconnecting link is separated and the unit being closed with the connection disconnecting link of the first bus and the second bus charge to abnormal set.
The idle distribution method of thermal power plant of a kind of adaptive bus running manner proposed by the present invention, for double-bus
Thermal power plant, it can be determined that go out Present Thermal Power factory and office in paired running mode or split operation mode, and judge thermal motor
The connection relationship of group and bus enables thermal power plant's voltage to automatically control (AVC) system and correctly controls unit, meets and adjust
Spend the requirement to voltage.
The present invention realizes automatic identification thermal power plant bus operating status, and adjusts machine according to thermal power plant's bus operating status
Group control mode guarantees that electricity net safety stable simultaneously passes through to achieve the purpose that unit acting real-time adaptive bus running manner
The operation of Ji ground.
Detailed description of the invention
Fig. 1 is a kind of idle distribution method flow chart of thermal power plant of adaptive bus running manner proposed by the present invention.
Specific embodiment
Referring to Fig.1, the idle distribution method of thermal power plant of a kind of adaptive bus running manner proposed by the present invention, including with
Lower step:
S1, thermal power plant's electric information is obtained, including switch tool, busbar voltage, unit are active, unit is idle and generator terminal is electric
Press signal.Busbar voltage, unit are active, unit is idle and set end voltage signal is for calculating idle increment needed for power grid, open
The status information for closing disconnecting link is used to judge the cascade connection of bus operating status and unit and bus.
S2, judge that bus is paired running or split operation.In this step, information, judgement are opened and closed according to bus connection switch
The operational mode of bus.Specifically, judging bus paired running if bus connection switch is closed；, whereas if bus connection switch point
It opens, then judges two bus splittings.
Under bus paired running state, following steps are executed:
S3, the idle increment Q that full factory is calculated according to busbar voltageIncrement。
S4, two all units of the bus second line of a couplet are obtained as control object, by the idle increment Q of full factoryIncrementIt is averagely allocated to
Each control object.Specifically, in this step, control object include simultaneously only include machine that each is electrically connected with any bus
Group.
Under bus splitting state, following steps are executed:
S5, it is calculated according to the voltage of the first bus needed for the idle increment Q1 of the first busIncrement, and according to the second bus
Voltage calculate the idle increment Q2 of the second busIncrement。
S6, the first bus second line of a couplet unit of statistics count the second bus second line of a couplet unit as second as the first control object
Control object.
S7, by the idle increment Q1 of the first busIncrementIt is averagely allocated to each first control object, by the idle increment of the second bus
Q2IncrementIt is averagely allocated to each second control object.
In this way, the present invention realizes automatic identification thermal power plant bus operating status, and according to thermal power plant's bus operating status
Unit allocation mode is adjusted, to achieve the purpose that unit acting real-time adaptive bus running manner, guarantees that power grid security is steady
Determine and economically runs.
In further embodiment of the present invention, the statistical method of control object in step S4 are as follows: establish control set, successively
Judge that each unit connects the state of the disconnecting link of the first bus and/or the second bus, if the disconnecting link that unit connects the first bus closes
It closes or the disconnecting link of unit the second bus of connection is closed, then unit is included in control set.The disconnecting link state of all units is patrolled
After the completion of inspection, all units in control set are obtained as control object.In the present embodiment, it is incremented by control set
Mode collects unit, advantageously ensures that the integrality of the control object finally obtained, avoids losing controlled unit.
In another embodiment of the present invention, the statistical method of control object in step S4 are as follows: control set is established, it will be in factory
All units charge to control set.Then, unit in inspection factory will be divided equally with the connection disconnecting link of the first bus and the second bus
The unit opened gathers interior delete from control.In factory after the completion of set cycle checking, using all units in control set as control pair
As.In this way, by way of deleting, clearly simplifying control object in present embodiment, be conducive to improve set cycle checking efficiency.
In further embodiment of the present invention, step S6 specifically: establish respectively for the first bus and the second bus
One control set and the second control set, will be closed with the connection disconnecting link of the first bus and separate with the connection disconnecting link of the second bus
Unit charge to the first domination set cooperation be the first control object, by with the second bus connection disconnecting link closure and with the first bus
The separated unit of connection disconnecting link charge to the second domination set cooperation be the second control object.In this way, by first control set and
Second control set respectively manages the first control object and the second control object concentratedly, is conducive to improve unit allocation effect
While rate, the accuracy of unit allocation is also advantageously improved.
When it is implemented, in step S4 further include: the machine that will be separated with the connection disconnecting link of the first bus and the second bus
Group is marked as abnormal unit, is managed collectively with facilitating to abnormal unit.Similarly, in step S6 further include: will be with
Unit that the connection disconnecting link of first bus and the second bus is separated and equal with the connection disconnecting link of the first bus and the second bus
The unit of closure is marked as abnormal unit.
In specific present embodiment, under bus paired running state, two buses label 0, any bus second line of a couplet institute
Organic group echo 0, the unit that label 0 is obtained in step S4 are used as control object, and remaining unit is as exception unit label 3.
Under bus splitting state, the first bus label 1, first all units of the bus second line of a couplet label 1.Second bus label 2, the
Two all units of the bus second line of a couplet label 2.In step S6, the unit of label 1 is counted respectively as the first control object, label 2
Unit as the second control object, remaining unit is as abnormal unit label 3.In this way, providing tool in present embodiment
The unit mark mode of body, thus it is convenient in unit allocation, target unit is quickly determined, to improve power grid adjustment effect
Rate, also, be conducive to grasp uncontrolled unit in real time, to guarantee the overall monitor to power grid.
Further include step S20 in another embodiment of the present invention: establishing abnormal set.Step S4 further include: will be with first
The unit that the connection disconnecting link of bus and the second bus is separated charges to abnormal set.Step S6 further include: will with the first bus and
Unit that the connection disconnecting link of second bus is separated and the unit being closed with the connection disconnecting link of the first bus and the second bus
Charge to abnormal set.In this way, being conducive to the management for improving uncontrolled unit by the same uncontrolled unit of management of abnormal set
Accuracy avoids abnormal operation.
The above, preferable specific embodiment only of the present invention, but protection scope of the present invention not office
Be limited to this, anyone skilled in the art in the technical scope disclosed by the present invention, technology according to the present invention
Scheme and its inventive concept are subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of idle distribution method of thermal power plant of adaptive bus running manner, which comprises the following steps:
S1, thermal power plant's electric information is obtained, including switch tool, busbar voltage, unit are active, unit is idle and set end voltage letter
Number；
S2, judge that bus is paired running or split operation；
Under bus paired running state, following steps are executed:
S3, the idle increment Q that full factory is calculated according to busbar voltageIncrement；
S4, two all units of the bus second line of a couplet are obtained as control object, by the idle increment Q of full factoryIncrementIt is averagely allocated to each
A control object；
Under bus splitting state, following steps are executed:
S5, it is calculated according to the voltage of the first bus needed for the idle increment Q1 of the first busIncrement, and according to the electricity of the second bus
Pressure calculates the idle increment Q2 of the second busIncrement；
S6, the first bus second line of a couplet unit of statistics count the second bus second line of a couplet unit as the second control as the first control object
Object；
S7, by the idle increment Q1 of the first busIncrementIt is averagely allocated to each first control object, by the idle increment Q2 of the second busIncrement
It is averagely allocated to each second control object.
2. the idle distribution method of thermal power plant of adaptive bus running manner as described in claim 1, which is characterized in that step
In S2, information is opened and closed according to bus connection switch, judges the operational mode of bus.
3. the idle distribution method of thermal power plant of adaptive bus running manner as described in claim 1, which is characterized in that step
In S4, the unit being electrically connected with any bus is included in control object.
4. the idle distribution method of thermal power plant of adaptive bus running manner as claimed in claim 3, which is characterized in that step
The statistical method of control object in S4 are as follows: establish control set, successively judge that each unit connects the first bus and/or the second bus
Disconnecting link state, if unit connect the first bus disconnecting link closure or unit connect the second bus disconnecting link closure,
Unit is included in control set；After the completion of the disconnecting link status checkout of all units, all units obtained in control set are made
For control object.
5. the idle distribution method of thermal power plant of adaptive bus running manner as claimed in claim 3, which is characterized in that step
The statistical method of control object in S4 are as follows: establish control set, units all in factory are charged to control set；Then, inspection
The unit being separated with the connection disconnecting link of the first bus and the second bus is gathered interior delete from control by unit in factory；Machine in factory
After the completion of group inspection, using all units in control set as control object.
6. the idle distribution method of thermal power plant of adaptive bus running manner as described in claim 1, which is characterized in that step
In S4 further include: be marked the unit being separated with the connection disconnecting link of the first bus and the second bus as abnormal unit.
7. the idle distribution method of thermal power plant of adaptive bus running manner as described in claim 1, which is characterized in that step
S6 specifically: the first control set is established respectively for the first bus and the second bus and the second control is gathered, it will be with the first mother
The connection disconnecting link of line is closed and the unit separated with the connection disconnecting link of the second bus charges to the first domination set cooperation as the first control
Object, will be closed with the connection disconnecting link of the second bus and the unit separated with the connection disconnecting link of the first bus charges to the second domination set
Cooperation is the second control object.
8. the idle distribution method of thermal power plant of adaptive bus running manner as described in claim 1, which is characterized in that step
In S6 further include: by the unit being separated with the connection disconnecting link of the first bus and the second bus and with the first bus and second it is female
The unit that the connection disconnecting link of line is closed is marked as abnormal unit.
9. the idle distribution method of thermal power plant of adaptive bus running manner as claimed in any one of claims 1 to 8, feature
It is, under bus paired running state, two buses label 0, any all machine group echos 0 of the bus second line of a couplet are obtained in step S4
Take the unit of label 0 as control object, remaining unit is as abnormal unit label 3；Under bus splitting state, first
Bus label 1, first all units of the bus second line of a couplet label 1；Second bus label 2, second all units of the bus second line of a couplet are marked
Note 2；In step S6, count the unit of label 1 respectively as the first control object, the unit of label 2 as the second control object,
Remaining unit is as abnormal unit label 3.
10. the idle distribution method of thermal power plant of adaptive bus running manner as claimed in any one of claims 1 to 8, special
Sign is, further includes step S20: establishing abnormal set；Step S4 further include: by the connection knife with the first bus and the second bus
The unit that lock is separated charges to abnormal set；Step S6 further include: will divide equally with the connection disconnecting link of the first bus and the second bus
The unit opened and the unit being closed with the connection disconnecting link of the first bus and the second bus charge to abnormal set.
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162133A (en) * | 2015-08-24 | 2015-12-16 | 国电南瑞科技股份有限公司 | Reactive power target value allocation method for main transformer of local dispatcher gateway |
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2018
- 2018-10-17 CN CN201811207976.0A patent/CN109390951A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162133A (en) * | 2015-08-24 | 2015-12-16 | 国电南瑞科技股份有限公司 | Reactive power target value allocation method for main transformer of local dispatcher gateway |
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