CN105870923B - The method of supplying power to of integrated mill - Google Patents
The method of supplying power to of integrated mill Download PDFInfo
- Publication number
- CN105870923B CN105870923B CN201610332815.9A CN201610332815A CN105870923B CN 105870923 B CN105870923 B CN 105870923B CN 201610332815 A CN201610332815 A CN 201610332815A CN 105870923 B CN105870923 B CN 105870923B
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- power
- power supply
- electricity consumption
- plant area
- supply station
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention discloses a kind of method of supplying power to of integrated mill;Include the following steps:The integrated mill is divided into multiple electricity consumption plant areas by importance and counts respective power data;Count the power supply station powered for the integrated mill and its power data;When power supply station does not have a power failure, each electricity consumption plant area is effectively connected on each power supply station's current supply circuit;When some power supply station has a power failure, its power data is obtained, and the power data of electricity consumption plant area is read out by the sequence of importance from low to high, the sum of power data of electricity consumption plant area of reading is more than the power data of power failure power supply station;The corresponding electricity consumption plant area of read electricity consumption plant area power data is had a power failure;The remaining electricity consumption plant area that do not have a power failure is effectively connected on the power supply station's current supply circuit not having a power failure.The electricity consumption plant area of the invention that can automatically switch the integrated mill according to the electric power thus supplied of the power supply station to integrated mill's power supply, avoids blackout accident.
Description
Technical field
The present invention relates to the power supply technique fields of integrated mill, and in particular to a kind of method of supplying power to of integrated mill.
Background technology
In the power supply-distribution system of large chemical complex, initial design for power supply and distribution or cannot meet gradually grow and develop
Needs, original distribution substation's supply load cannot be met newly-increased plant area and device load, thus increases power supply and distribution institute newly, arrives
It is more to be developed into production plant area, power supply and distribution is not from same institute's transformer and distribution power station, more even there is the situation of power plant for self-supply.And
Again or interconnection is added in many supply and distribution networks, in order that ensureing important production plant area and the power supply of necessary process units,
In this case, a certain accident cause certain distribution substation have a power failure, other distribution substation's excess loads may be influenced, What is more cause it is super negative
Lotus is tripped.
Specifically, the present invention be in order to allow unessential production plant area or loss of outage it is little production plant area it is automatic
Power-off, reduces the power supply station's load not having a power failure automatically, allow power supply station not excess load and cause a kind of method of blackout.
Invention content
The object of the present invention is to provide a kind of method of supplying power to of integrated mill, can be according to the power supply station to integrated mill's power supply
Electric power thus supplied automatically switch connect the integrated mill electricity consumption plant area, avoid blackout accident.
The present invention uses following scheme, a kind of method of supplying power to of integrated mill, it is critical that including as follows
Step:
Step a:The integrated mill is divided into multiple electricity consumption plant areas by the sequence of importance from high to low, uses a respectively1、
a2、…ai-1、ai…anIt represents;
Step b:The power data Wa of each electricity consumption plant area is counted respectively1、Wa2、…Wai-1、Wai…Wan, and and use power plant
Area forms one-to-one relationship;
Step c:The each power supply station powered for the integrated mill is counted, uses b respectively1、b2、…bj-1、bj…bmIt represents;
Step d:Count the power data Wb for each power supply station powered for the integrated mill1、Wb2、…Wbj-1、Wbj…
Wbm, and form one-to-one relationship with power supply station;
Step e:When there is no power supply station's power failure, according to each electricity consumption plant area aiPower data Wai, each power supply station bj
Power data Wbj, by each electricity consumption plant area aiIt is connected to each power supply station bjCurrent supply circuit on;
As some power supply station bjDuring power failure, power failure power supply station b is obtainedjPower data Wbj, and according to importance by low
Electricity consumption plant area a is read to high sequencei、ai-1... power data Wai、Wai-1..., until the power number of the electricity consumption plant area of reading
According to Wai、Wai-1... the sum of be more than power failure power supply station bjPower data Wbj;
Step f:By read power data Wai、Wai-1... corresponding electricity consumption plant area ai、ai-1... have a power failure;
Step h:According to the remaining electricity consumption plant area a not having a power failure1、a2... power data Wa1、Wa2..., it is remaining not
The power supply station b of power failure1、b2... power data Wb1、Wb2..., by the remaining electricity consumption plant area a not having a power failure1、a2... it is connected to
The power supply station b not having a power failure1、b2... current supply circuit on.
Since large chemical complex's power supply and distribution is not from distribution substation of same institute, contact is added in multiple supply and distribution networks
Line, in order that ensureing important production plant area and the power supply of necessary process units, in this case, a certain accident power supply station stops
Electricity may influence other distribution substation's excess loads, excess load that What is more tripping.
By all electricity consumption plant areas of company by importance divided rank, and all power supply sources are converged, when a certain confession
Electricity is when having a power failure, by by electricity consumption plant area divided rank primary and secondary, allowing unessential production plant area or the little electricity consumption of loss of outage
Plant area automatically powers off, and mitigates also in distribution substation's load of power supply, guarantee will not excess load and cause blackout.
The sum of power data of power supply station is more than the sum of power data of electricity consumption plant area, this belongs to common knowledge.
When power outage occurs, calculated by power data and disposably power off inessential electricity consumption plant area, avoid one
One powers off the power supply station's excess load for causing powering, and does not need to what is had a power failure according to power data adjust automatically is remaining
Electricity consumption plant area is connected to the power supply station not having a power failure.
Power data Wa1、Wa2、…Wai-1、Wai…WanWith electricity consumption plant area a1、a2、…ai-1、ai…anIt corresponds.
Power data Wb1、Wb2、…Wbj-1、Wbj…WbmWith power supply station b1、b2、…bj-1、bj…bmIt corresponds.
It is described according to each electricity consumption plant area aiPower data Wai, each power supply station bjPower data Wbj, by each use
Power plant area aiIt is connected to each power supply station bjCurrent supply circuit on;Refer to electricity consumption plant area aiIt is connected to power supply station bjWhen upper, it is impossible to
Cause power supply station bjExcess load, and can guarantee each power supply station bjBy the rated power operation of oneself.
Similarly, it is described according to the remaining electricity consumption plant area a not having a power failure1、a2... power data Wa1、Wa2..., it is remaining
The power supply station b not having a power failure1、b2... power data Wb1、Wb2..., by the remaining electricity consumption plant area a not having a power failure1、a2... connection
To the power supply station b not having a power failure1、b2... current supply circuit on;Refer to that the electricity consumption plant area a having a power failure will not be needed to1、a2... it is connected to
The power supply station b not having a power failure1、b2... current supply circuit on when cannot cause the power supply station's excess load not having a power failure, but do not stop each
The power supply of rated power that the power supply station of electricity is capable of providing again according to oneself.
The integrated mill is additionally provided with stand-by power supply, and the stand-by power supply is as electricity consumption plant area power supply carried out by a power supply.
Many factories are designed with power plant for self-supply or generator as stand-by power supply, which can also be considered as a confession
Electricity consumption plant area carried out by electricity powers.
As some power supply station bjWhen sending a telegram here again, the power supply station b that is sent a telegram here again according to thisjPower data Wbj, according to weight
The sequence spent from high to low reads electricity consumption plant area ... a having a power failurei-1、aiPower data ... Wai-1、Wai, the power number of reading
According to ... Wai-1、WaiThe sum of cannot be more than Wbj;
By power data ... the Wa of readingi-1、WaiElectricity consumption plant area ... a of corresponding power failurei-1、aiIt is connected to what is sent a telegram here again
Power supply station bjCurrent supply circuit on.
The method is the power supply station b that will be sent a telegram here againjIt is connected to electricity consumption plant area ... a of the high power failure of importancei-1、ai
On, and it is not to allow the power supply station b to send a telegram here againjExcess load.
The electricity consumption plant area is also further divided into important electricity consumption plant area and secondary electricity consumption plant area by importance, when power failure
Electricity consumption plant area ... ai-1、aiIt is connected to the power supply station b to send a telegram here againjCurrent supply circuit on when, preferentially lead to important electricity consumption plant area
Electricity is powered again to secondary electricity consumption plant area after delay time T.
Many large-size machines have strong rush of current when starting, and this method is conducive to alleviate the dash current to again
The power supply station b of incoming calljInfluence.
The electricity consumption plant area that first time is divided by importance is further carried out being divided into important electricity consumption plant area and secondary electricity consumption
Plant area, as electricity consumption plant area ... a of power failurei-1、aiReconnect to the power supply station b to send a telegram here againj, preferentially lead to important electricity consumption plant area
Electricity can be to avoid the power supply station b that counterweight is newly sent a telegram herejImpact, cause power outage.
T is by being artificially previously set.
It can realize that the power supply of integrated mill is switched fast by the method for supplying power to of the integrated mill, be not easy to cause and do not have a power failure
Power supply station's excess load.
An automatic adjustment load device can be newly increased in switchgear house.All power supply stations of company and each electricity consumption plant area are born
Lotus amount is digitized and is brought together, and further according to the payload of power supply station and electricity consumption plant area, electricity consumption is automatically adjusted by importance
The produce load of plant area ensures that the higher electricity consumption plant area of importance does not have a power failure, excess load is avoided to cause and is tripped and blackout.
Remarkable result:The present invention provides a kind of method of supplying power to of integrated mill, can be according to the confession to integrated mill's power supply
The electric power thus supplied of electric institute automatically switches the electricity consumption plant area of the connection integrated mill, avoids blackout accident.
Description of the drawings
Fig. 1 flow charts of the method for the present invention;
The schematic diagram of integrated mill's power supply carried out by Fig. 2 power supplies;
Fig. 3 uses the method for supplying power to normal power supply schematic diagram of integrated mill;
Fig. 4 power supply stations b1Using the power supply schematic diagram of the method for supplying power to of integrated mill during failure.
Specific embodiment
The present invention is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1 and Figure 2, a kind of method of supplying power to of integrated mill, includes the following steps:
Step a:The integrated mill is divided into multiple electricity consumption plant areas by the sequence of importance from high to low, uses a respectively1、
a2、…ai-1、ai…anIt represents;
Step b:The power data Wa of each electricity consumption plant area is counted respectively1、Wa2、…Wai-1、Wai…Wan, and and use power plant
Area forms one-to-one relationship;
Step c:The each power supply station powered for the integrated mill is counted, uses b respectively1、b2、…bj-1、bj…bmIt represents;
Step d:Count the power data Wb for each power supply station powered for the integrated mill1、Wb2、…Wbj-1、Wbj…
Wbm, and form one-to-one relationship with power supply station;
Step e:When there is no power supply station's power failure, according to each electricity consumption plant area aiPower data Wai, each power supply station bj
Power data Wbj, by each electricity consumption plant area aiIt is connected to each power supply station bjCurrent supply circuit on;
As some power supply station bjDuring power failure, power failure power supply station b is obtainedjPower data Wbj, and according to importance by low
Electricity consumption plant area a is read to high sequencei、ai-1... power data Wai、Wai-1..., until the power number of the electricity consumption plant area of reading
According to Wai、Wai-1... the sum of be more than power failure power supply station bjPower data Wbj;
Step f:By read power data Wai、Wai-1... corresponding electricity consumption plant area ai、ai-1... have a power failure;
Step h:According to the remaining electricity consumption plant area a not having a power failure1、a2... power data Wa1、Wa2..., it is remaining not
The power supply station b of power failure1、b2... power data Wb1、Wb2..., by the remaining electricity consumption plant area a not having a power failure1、a2... it is connected to
The power supply station b not having a power failure1、b2... current supply circuit on.
The integrated mill is additionally provided with stand-by power supply, and the stand-by power supply is as electricity consumption plant area power supply carried out by a power supply.
As some power supply station bjWhen sending a telegram here again, the power supply station b that is sent a telegram here again according to thisjPower data Wbj, according to weight
The sequence spent from high to low reads electricity consumption plant area ... a having a power failurei-1、aiPower data ... Wai-1、Wai, the power number of reading
According to ... Wai-1、WaiThe sum of cannot be more than Wbj;
By power data ... the Wa of readingi-1、WaiElectricity consumption plant area ... a of corresponding power failurei-1、aiIt is connected to what is sent a telegram here again
Power supply station bjCurrent supply circuit on.
The electricity consumption plant area is also further divided into important electricity consumption plant area and secondary electricity consumption plant area by importance, when power failure
Electricity consumption plant area ... ai-1、aiIt is connected to the power supply station b to send a telegram here againjCurrent supply circuit on when, preferentially lead to important electricity consumption plant area
Electricity, it powers again to secondary electricity consumption plant area after delay time T, the present embodiment is preferentially set as 2 minutes, ensures all important equipments
It is powered again to secondary plant area after steady operating.
As shown in figure 3, the normal power supply method schematic diagram for an integrated mill, is set between power supply station and electricity consumption plant area
The confession electric installation of one integrated mill, by power supply station b1To electricity consumption plant area a1、a4Power supply, power supply station b2 are electricity consumption plant area a5、a2、a6
Power supply, power plant for self-supply is to electricity consumption plant area a3Power supply, wherein a1、a2、a3、a4、a5、a6For the electricity consumption plant area that importance reduces successively,
It is numbered according to importance, the number in bracket is its importance number, and importance reduces successively from 1-6, and unites
Its power data is counted, electricity consumption plant area and its power data are corresponded, the number of power supply station is also a pair of with its power data one
It should.
As shown in figure 4, as power supply station b1Failure or when having a power failure due to lightning stroke, in order to ensure that enterprise produces, passes through setting one
A integrated mill switches over automatically for electric installation, electricity consumption plant area a1、a4Power supply will be by power supply station b2It is supplied with power plant for self-supply
It gives.But power supply station b2It can only power, produced now with 6 electricity consumption plant areas, at this moment to 4 electricity consumption plant areas together with power plant for self-supply
Integrated mill will be calculated for electric installation according to power data and the setting of importance grade, it will get rid of a part automatically
Load automatically powers off a6、a5The power supply of electricity consumption plant area, to ensure the operation of other important productive power plant areas.It is if large-scale public
Factory calculates gained a for electric installation6、a5The power data of electricity consumption plant area is still less than power supply station b1Power data after, can successively will
a4Electricity consumption plant area power data counts, until the sum of electricity consumption plant area power data having a power failure is more than power supply station b1Power number
According to by the corresponding electricity consumption plant area a of the power data of reading6、a5Have a power failure.
In conclusion the present invention provides a kind of method of supplying power to of integrated mill, it can be according to the confession to integrated mill's power supply
The electric power thus supplied of electric institute automatically switches the electricity consumption plant area of the connection integrated mill, avoids blackout accident.
Claims (4)
1. a kind of method of supplying power to of integrated mill, which is characterized in that include the following steps:
Step a:The integrated mill is divided into multiple electricity consumption plant areas by the sequence of importance from high to low, uses a respectively1、a2、…
ai-1、ai…anIt represents;
Step b:The power data Wa of each electricity consumption plant area is counted respectively1、Wa2、…Wai-1、Wai…Wan, and with electricity consumption plant area shape
Into one-to-one relationship;
Step c:The each power supply station powered for the integrated mill is counted, uses b respectively1、b2、…bj-1、bj…bmIt represents;
Step d:Count the power data Wb for each power supply station powered for the integrated mill1、Wb2、…Wbj-1、Wbj…Wbm, and
One-to-one relationship is formed with power supply station;
Step e:When there is no power supply station's power failure, according to each electricity consumption plant area aiPower data Wai, each power supply station bjWork(
Rate data Wbj, by each electricity consumption plant area aiIt is connected to each power supply station bjCurrent supply circuit on;
As some power supply station bjDuring power failure, power failure power supply station b is obtainedjPower data Wbj, and according to importance from low to high
Sequence read electricity consumption plant area ai、ai-1... power data Wai、Wai-1..., until the power data of the electricity consumption plant area of reading
Wai、Wai-1... the sum of be more than power failure power supply station bjPower data Wbj;
Step f:By read power data Wai、Wai-1... corresponding electricity consumption plant area ai、ai-1... have a power failure;
Step h:According to the remaining electricity consumption plant area a not having a power failure1、a2... power data Wa1、Wa2..., remaining do not have a power failure
Power supply station b1、b2... power data Wb1、Wb2..., by the remaining electricity consumption plant area a not having a power failure1、a2... it is connected to and does not have a power failure
Power supply station b1、b2... current supply circuit on.
2. the method for supplying power to of integrated mill according to claim 1, it is characterised in that:The integrated mill is additionally provided with standby
With power supply, the stand-by power supply is as electricity consumption plant area power supply carried out by a power supply.
3. the method for supplying power to of integrated mill according to claim 1, it is characterised in that:As some power supply station bjAgain it sends a telegram here
When, the power supply station b that is sent a telegram here again according to thisjPower data Wbj, the use having a power failure is read according to the sequence of importance from high to low
Power plant area ... ai-1、aiPower data ... Wai-1、Wai, power data ... the Wa of readingi-1、WaiThe sum of cannot be more than Wbj;
By power data ... the Wa of readingi-1、WaiElectricity consumption plant area ... a of corresponding power failurei-1、aiIt is connected to the power supply sent a telegram here again
Institute bjCurrent supply circuit on.
4. the method for supplying power to of integrated mill according to claim 3, it is characterised in that:Importance is pressed also by the electricity consumption plant area
Important electricity consumption plant area and secondary electricity consumption plant area are further divided into, as electricity consumption plant area ... a power failurei-1、aiIt is connected to and comes again
The power supply station b of electricityjCurrent supply circuit on when, preferentially important electricity consumption plant area is given to be powered, gives secondary electricity consumption plant area after delay time T again
Power supply.
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CN105552879A (en) * | 2014-10-30 | 2016-05-04 | 国家电网公司 | Planning method based on urban small-scale wind power generation discrete distribution |
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JP3986735B2 (en) * | 2000-07-27 | 2007-10-03 | 株式会社東芝 | Power system control device and storage medium |
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Patent Citations (5)
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CN1501560A (en) * | 2002-08-08 | 2004-06-02 | ̩ | Multiple-output circuit device with settable power supply priority order |
CN104037774A (en) * | 2013-03-06 | 2014-09-10 | 珠海优特电力科技股份有限公司 | Method and system for controlling devices in micro grid based on priority |
CN104882959A (en) * | 2014-02-27 | 2015-09-02 | 国家电网公司 | Power distribution network area management method and system |
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