CN109272229A - Power station deviation electricity calculation method based on virtual reservoir - Google Patents
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Abstract
Power station deviation electricity calculation method based on virtual reservoir, in the case where left and right power station reality generated energy is unsatisfactory for constraint condition, increase electricity to meeting constraint condition, the increased electricity in the part is calculated as left and right bank amendment electricity, real generated energy adds amendment electricity to be the virtual electricity in power station, carries out the calculating of deviation electricity with left and right virtual electricity, deviation electricity in the Zuo right phase: in point multiple electricity of electric ratio Zuo An right bank, if the numerical value is positive, need left bank right bank also supply electricity to right bank left bank；If the numerical value is negative, need right bank left bank also supply electricity to left bank right bank.It is left right amendment electricity: it is left Right Bank Hydropower Station in the case where being unsatisfactory for constraint condition, calculate it is left right day amendment electricity, if meeting constraint, it is left right bank amendment electricity be 0.The present invention establishes the deviation electricity calculation method for fully considering that power station undertakes comprehensive task, has accomplished the quick, scientific of deviation electricity, fair computation on virtual Reservoir Foundation.
Description
Technical field
The present invention relates to water conservancy and hydropower technical field, specifically a kind of power station deviation electricity calculating side based on virtual reservoir
Method.
Background technique
Xiluodu reservoir is located at Jinsha jiang River downstream, is located at Sichuan and Yunnan intersection, and left and right banks power scheduling adheres to country separately
Power grid and south electric network, two power station independent operatings, centre are connected without electric appliance.The left and right banks power station that National Energy Board assigns
Dividing electric ratio dry season (November~December, 1~May) is 42:58, and the wet season (6~October) is 50:50.According to two power grids
With the agreement of Xi Luodu power plant: when practical left and right banks generated energy does not balance to scale, needing statistic bias electricity, deviation
Electricity follows in principle per diem to be counted, handles by month to date, processing in secondary month, rich withered respective balance mode.
In real time execution, two power grids are forecast from reservoir inflow, reservoir operation constrains, power grid power demand, line maintenance
Angularly comprehensively consider with power grid security, does not absolutely arrange left and right banks power output in a point electric ratio.
According to the agreement that national grid, south electric network and Xi Luodu power plant sign, the deviation that left and right bank electricity station generates is electric
Amount, needs optionally to be rolled adjustment, meets a point electric ratio as far as possible, therefore deviation electricity is to realize left and right bank electricity station electricity
The important foundation data balanced in proportion.
There are two types of existing deviation electricity calculation methods:
[1], the deviation electricity calculation method of monthly plan is assigned based on two power grids:
In actual operation, two it is off the net be unsatisfactory for a point electricity ratio up to left and right bank yearly plan and monthly plan, cause the later period to run
In, practical electricity is difficult by point electric proportional balancing method；This method day benchmark electricity basis be two power grids assign monthly plan, and
The imbalance for assigning monthly plan causes a day imbalance for benchmark electricity.The calculating for according to said method carrying out deviation electricity fails correctly
The actual electricity deviation situation in two power stations of reaction.
[2], the direct deviation electricity calculation method based on real generated energy:
Day, benchmark electricity was that actual power generation is allocated in a point electric ratio, and reaction left and right banks power station that can be rough is actually inclined
Poor charge condition.Xiluodu project takes into account the power station of more comprehensive task based on generating electricity, and left and right banks power station is obtaining power generation effect
While beneficial, also need to undertake corresponding comprehensive task.Direct deviation electricity calculation method based on real generated energy does not consider left and right
Bank electricity station needs justice to undertake comprehensive task, undertakes the deviation electricity that the side power station more than comprehensive task thinks that the method calculates and slightly loses
It is fair.
The numerous comprehensive task of complicated operation of power networks and power station makes original two kinds of deviation electricity calculation method not
The actual conditions of the fair reflection power station operation of energy science, carry out two power grids not by the deviation electricity of both methods calculating
The adjustment for balancing electricity, cannot get the consistent approval of two power grids.
It is complicated and changeable due to generating deviation electricity, and its caused consequence is not reproducible, and can not carry out deviation
True Reservoir Operation Conditions comparative analysis whether electricity generates, in addition deviation electricity also has accumulation to imitate over time and space
It answers, how quickly, accurately, scientific calculating deviation electricity there is no successful precedent that can follow so far, become management and running and need to solve
Problem certainly.
Summary of the invention
The present invention provides a kind of power station deviation electricity calculation method based on virtual reservoir and builds on virtual Reservoir Foundation
The deviation electricity calculation method for fully considering that power station undertakes comprehensive task has been found, has accomplished the quick, scientific, fair of deviation electricity
It calculates.
The technical scheme adopted by the invention is as follows:
Power station deviation electricity calculation method based on virtual reservoir,
In the case where left and right power station reality generated energy is unsatisfactory for constraint condition, increases electricity to constraint condition is met, which is increased
The electricity added is calculated as left and right bank amendment electricity, and real generated energy adds amendment electricity to be the virtual electricity in power station, with left and right virtual electricity
Carry out the calculating of deviation electricity；
It is left deviation electricity in the right phase: in point electric ratio left bank the multiple electricity of right bank, if the numerical value is positive, need left bank
Right bank also supply electricity to right bank left bank；If the numerical value is negative, need right bank left bank also supply electricity to left bank right bank；
It is left right amendment electricity: it is left Right Bank Hydropower Station in the case where being unsatisfactory for constraint condition, calculate it is left right day amendment electricity, if full
Foot constraint, then it is left right bank amendment electricity be 0.
Reservoir is run by stages, and deviation electricity carries out rolling calculation within the phase, is only calculated and day is corrected electricity, and amendment in the phase is carried out
Electricity statistics calculates.
The electric ratio in left and right banks power station point is crossed in small stream Lip river: according to National Energy Board issue " Xiangjiabahydropower project electric energy is crossed in small stream Lip river
Consumption scheme ", the electricity at the left and right bank electricity station Xi Luodu dry season (May November to next year) in 42:58 ratio consumption,
Wet season (June to October) is dissolved in the ratio of 50:50.Xiluodu project actual power generation by rich, the withered phase in national grid and
South electric network balances according to the above ratio.
Practical reservoir operation, can be all multiple constraints by constraints such as shipping, water supply, construction, library bank safety, lower reservoir operations
Condition is reduced to 5 kinds of constraint conditions, including minimum discharge constraint, maximum stream flow constraint, lowest water level constraint, peak level are about
Beam, range of stage constraint；Real reservoir traffic constraints are converted into the virtual traffic constraints of left and right bank with a point electric pro rate；Water level
Constraint, using virtual water level as the foundation for judging whether to meet constraint.The calculating of the virtual water level is established in the practical tune of reservoir
For degree on the basis of, the general same day utilizes the management and running data of proxima luce (prox. luc), calculates the virtual water level of proxima luce (prox. luc).
The power station small stream Luo Du is divided into dry season and wet season in dividing electric ratio different, by reservoir operation, and electricity clearing are with certainly
Right year is the period, is in the reservoir drawdown phase in June in the wet season, is in flood season in July, August, and September is in the water storage phase, in September under
The high water level runtime is in after ten days water storage, reservoir operation mode conversion is very fast.It can be in point electric a ratio, operation characteristic, electricity
Reservoir operation calendar year is divided into several runtimes by the factors such as billing cycle, and deviation electricity can roll continuous meter within the phase
It calculates.
A kind of power station deviation electricity calculation method based on virtual reservoir of the present invention, has the beneficial effect that:
1: the present invention establishes the deviation electricity calculating for fully considering that power station undertakes comprehensive task on virtual Reservoir Foundation
Method has accomplished the quick, scientific of deviation electricity, fair computation.
2: the present invention passes through the calculating of deviation electricity, and undertake comprehensive task returns electricity more less, undertakes comprehensive appoint less
The need of business return electricity more, reasonable to power grid rewards and punishments, technically promote power grid actively to optimize the operation of oneself side power station, favorably
Safe operation in power station.
3: with the development of China's hydropower, being located at national boundaries and provincial boundaries reservoir is more and more, based on the inclined of virtual reservoir
Poor electricity calculation method will be with certain promotional value in evaluation after these reservoir operations for adhering to different interests body separately.
Specific embodiment
Power station deviation electricity calculation method based on virtual reservoir, principle are as follows:
The concept of virtual reservoir will that is, based on abbreviation " dividing water with electricity " behind point principle of electric pro rate reservoir resources
Incoming water quantity, reservoir capacity etc. are allocated in a point electric ratio, and the virtual reservoir of left and right bank is established at corresponding left and right bank electricity station respectively.
Virtual reservoir thinks that two reservoirs of left and right bank are completely independent, and does not support mutually, and virtual reservoir operation must be by a point electric ratio
Example undertakes comprehensive task, if when the method for operation possibility Breakthrough restrictions condition in side power station, being adjusted in Real-Time Scheduling；But
It is pressed in the calculating of virtual reservoir and meets constraint calculating, abandoned automatically to meet the raw virtual outbound water of constraint fecund depending on a side, from
It is rejected in the water of distribution.
Practical reservoir operation, can be all multiple constraints by constraints such as shipping, water supply, construction, library bank safety, lower reservoir operations
Be reduced to 5 kinds of constraints: minimum discharge constraint, maximum stream flow constraint, lowest water level constraint, peak level constraint and range of stage are about
Beam, real reservoir flow related constraint are converted into the virtual traffic constraints of left and right banks with a point electric pro rate, water level related constraint with
Virtual water level is as the foundation for judging whether to meet constraint.
The calculating of virtual water level is established in reservoir actual schedule data basis, using initial actual water level as initial water level,
Using virtual water level in actual power operating condition measuring and calculating continuing phase, it is specifically shown in Table 1 by stages.The general same day utilizes the tune of proxima luce (prox. luc)
Spend the virtual water level that operation data calculates proxima luce (prox. luc).Within the phase, reach the consistent of the virtual water level in both sides as far as possible, it, can if inconsistent
By count it is left deviation electricity in the right bank phase, instruct the later period to run.
In the calculating of deviation electricity, with the virtual water level of the virtual reservoir of left and right banks and virtual flow to determine whether meeting
Constraint.In the case where left and right power station reality generated energy is unsatisfactory for constraint condition, increases electricity to constraint condition is met, which is increased
Electricity be calculated as left and right bank amendment electricity (be abbreviated as electricity is repaired on a left side, electricity is repaired on the right side).Real generated energy adds amendment electricity to be that power station is empty
Quasi- electricity carries out the calculating of deviation electricity with left and right virtual electricity.
It is left deviation electricity in the right phase: in point electric ratio left bank the multiple electricity of right bank, if the numerical value is positive, need left bank
Right bank also supply electricity to right bank left bank, if the numerical value is negative, need right bank left bank also supply electricity to left bank right bank.
It is left right amendment electricity: it is left Right Bank Hydropower Station in the case where being unsatisfactory for constraint condition, calculate it is left right day amendment electricity, if full
Foot constraint then it is left right bank amendment electricity be 0.
By stages by the operation of reservoir shown in table 1, deviation electricity carries out rolling calculation within the phase, because of two sides power station reality generated energy
Objective reality need to only calculate day amendment electricity in actual operation, carry out amendment electricity statistics in the phase and calculate.
Segmentation table in 1 small stream Luo Du of the table virtual water level phase
Deviation electricity calculation method of the invention is as follows:
1 fundamental formular:
1.1 reservoir inflows, which are less than, completely sends out flow:
VEi=Eqi+XEi (1)
In formula 1:
VEiFor the virtual electricity of the virtual reservoir in side；
EqiFor side actual power generation；
XEiElectricity is corrected for side；It is the virtual reservoir in left bank when 1,2 be the virtual reservoir of right bank.
In formula 2:
SEiFor side benchmark electricity；
VEiFor the virtual electricity of the virtual reservoir in side；
piFor point electric ratio of the virtual reservoir in side.
DEi=VEi-SEi (3)
In formula 3:
DEiFor side deviation electricity；
DE1=-DE2 (4)
In formula 4:
DE1For left bank deviation electricity；
DE2For right bank deviation electricity.
1.2 reservoir inflows, which are greater than, completely sends out flow:
The deviation electricity of the left and right sides is 0.
1. a day amendment electricity calculates:
1.1. reservoir inflow is less than the day amendment electricity calculating for completely sending out flow:
It is adjustable for the operation of withered season reservoir by factor constraints such as shipping, water supply, construction, library bank safety, lower reservoir operations
Space is smaller, it is left Right Bank Hydropower Station in the case where being unsatisfactory for constraint condition, calculate amendment electricity.Amendment electricity is divided into three types: amendment
ElectricityMinimum discharge, amendment electricityThe super upper limit of water levelWith amendment electricityThe super lower limit of water level。
1) minimum discharge limits:
Only left bank is not up to the minimum discharge distributed:
(XE1,t)min q=E (△ q1,t) (5)
Only right bank is not up to the minimum discharge distributed:
(XE2,t)min q=E (△ q2,t) (6)
The minimum discharge that left/right bank not up to distributes:
Left/right bank reaches the minimum discharge of distribution:
(XEi,t)min q=0 (7)
In formula 5,6,7:
(XEi,t)minqIt is violated for side and the day that minimum discharge constraint generates corrects electricity；
E(△qi,t) daily electricity that virtual storage outflow generates, electricity, which is corresponded to, for side minimum discharge subtracts actual power
Amount.
2) peak level limits:
The super upper limit of the virtual water level in left bank, right bank do not transfinite:
(XE1,t)max h=E (△ q1,t) (8)
The super upper limit of the virtual water level of right bank, left bank are not transfinited:
(XE2,t)max h=E (△ q2,t) (9)
The super upper limit of the virtual water level of left/right bank:
The not super upper limit of the virtual water level of left/right bank:
(XEi,t)max h=0 (10)
In formula 8,9,10:
(XEi,t)maxhIt is violated for side and the day that peak level constraint generates corrects electricity；
E(△qi,t) daily electricity that generates of virtual storage outflow, be side to avoid virtually abandoning water in practical storage outflow base
The corresponding daily electricity of increased flow on plinth；
3), lowest water level limits:
The virtual water level in left bank is lower than lower limit, and the virtual water level of right bank is higher than lower limit
(XE1,t)min h=F1,t-1-F1,t (11)
The virtual water level of right bank is lower than lower limit, and the virtual water level in left bank is higher than lower limit
(XE2,t)min h=F2,t-1-F2,t (12)
The virtual water level of left/right bank is below lower limit:
The virtual water level of left/right bank is above lower limit:
(XEi,t)min h=0 (13)
In formula 11,12,13:
(XEi,t)minhElectricity is corrected due to violating the day that minimum constraint generates for side；
Fi,t-1For the corresponding accumulation of energy electricity of the side virtual water level of reservoir proxima luce (prox. luc)；
Fi,tFor the corresponding accumulation of energy electricity of the side reservoir same day virtual water level.
1.2. reservoir inflow is greater than the day amendment electricity calculating for completely sending out flow:
Reservoir inflow, which is greater than, completely sends out flow, and two sides power station generates electricity according to maximum capacity, after the uneven electricity that early period generates
Phase impotentia is balanced, therefore deviation electricity is 0 in the case.
2. correcting electricity algorithm in the phase:
2.1. storage, which is less than, completely sends out flow:
In view of needing to violate the cushion space of combustion adjustment after constraint to two power grids, electricity minimum stream is corrected in the phase
The super upper limit of electricity is corrected in amount, phase and threshold value is respectively set in the amendment super lower limit of electricity in the phase, and amendment electricity surpasses in mid-term
Limit and the phase interior amendment super lower limit of electricity correct electric quantity accumulation calculating day in scheduling to last, and the water level upper limit of the day amendment super upper limit of electricity is to set
The fixed water level upper limit adds threshold value, and the water level for the water level lower limit setting that the super lower limit of amendment electricity calculates in the phase subtracts threshold value；Phase
Interior amendment electricity minimum discharge is just to be included in after aggregate-value is greater than the given threshold of such electricity.The determination of dependent thresholds by
Two power grids and power plant determine after negotiating.
In formula 14:
XEiElectricity is corrected in phase for the virtual reservoir in side；
(XEi,t)minqIt is violated for side and the day that minimum discharge constraint generates corrects electricity；
(XEi,t)minhIt is violated for side and the day that lowest water level constraint generates corrects electricity；
(XEi,t)maxhIt is violated for side and the day that peak level constraint generates corrects electricity；
(DEi)minqFor the threshold value for correcting electricity minimum discharge in the phase of side；
(DHi)minhFor the corresponding threshold value of side lowest water level；
(DHi)maxhFor the corresponding threshold value of side peak level；
2.2. storage, which is greater than, completely sends out flow:
It does not calculate and corrects electricity in the accumulative phase, deviation electricity is 0.
3. calculated examples:
20.2 hundred million kW.h of the withered left hypergeometric example power generation righter than small stream of season small stream in 2016 as can be seen from Table 2, but correct electricity and be
4.11 hundred million kW.h, 10.15 hundred million kW.h fewer than the small stream right side, the new algorithm calculating ratio original algorithm deviation electricity by considering Comprehensive Responsibility are few
3.61 hundred million kW.h greatly reduce the right electricity of return small stream in small stream left withered season, have encouraged more to undertake comprehensive task and lack range power station about
One side of beam.
Left and right banks power station deviation electricity measure and calculate table is crossed in 2 2016 years small stream Lip rivers of table
Remarks: a: deviation electricity (real generate) be directly be added using the real generated energy in left and right it is electric as benchmark multiplied by point electric ratio
Amount, it is deviation electricity that side's reality generated energy, which subtracts benchmark electricity,；
B: deviation electricity is (virtual) based on virtual reservoir, to calculate amendment electricity, considers that the combination of amendment electricity is real
Generated energy calculates deviation electricity method, has both invented the new method of proposition.
Claims (6)
1. the power station deviation electricity calculation method based on virtual reservoir, it is characterised in that:
In the case where left and right power station reality generated energy is unsatisfactory for constraint condition, increase electricity to meeting constraint condition, the part is increased
Electricity is calculated as left and right bank amendment electricity, and real generated energy is added amendment electricity to be the virtual electricity in power station, carried out with left and right virtual electricity
Deviation electricity calculates；
It is left deviation electricity in the right phase: in point electric ratio left bank the multiple electricity of right bank, if the numerical value is positive, need left bank right bank
Also supply electricity to right bank left bank；If the numerical value is negative, need right bank left bank also supply electricity to left bank right bank；
It is left right amendment electricity: it is left Right Bank Hydropower Station in the case where being unsatisfactory for constraint condition, calculate it is left right day amendment electricity, if meeting about
Beam, then it is left right bank amendment electricity be 0.
2. the power station deviation electricity calculation method based on virtual reservoir according to claim 2, it is characterised in that: reservoir operation
By stages, deviation electricity carries out rolling calculation within the phase, only calculates and day corrects electricity, carries out amendment electricity statistics in the phase and calculates.
3. the power station deviation electricity calculation method based on virtual reservoir, characterized by comprising:
1: Zuo right bank deviation electricity calculates；
2: day corrects electricity and calculates；
3: electricity algorithm is corrected in the phase.
4. the power station deviation electricity calculation method based on virtual reservoir according to claim 3, it is characterised in that: Zuo right bank
Deviation electricity calculates
1.1. reservoir inflow, which is less than, completely sends out flow:
VEi=Eqi+XEi (1)
In formula 1:
VEiFor the virtual electricity of the virtual reservoir in side；
EqiFor side actual power generation；
XEiElectricity is corrected for side；It is the virtual reservoir in left bank when 1,2 be the virtual reservoir of right bank；
In formula 2:
SEiFor side benchmark electricity；
VEiFor the virtual electricity of the virtual reservoir in side；
piFor point electric ratio of the virtual reservoir in side；
DEi=VEi-SEi (3)
In formula 3:
DEiFor side deviation electricity；
DE1=-DE2 (4)
In formula 4:
DE1For left bank deviation electricity；
DE2For right bank deviation electricity；
1.2. reservoir inflow, which is greater than, completely sends out flow:
The deviation electricity of the left and right sides is 0.
5. the power station deviation electricity calculation method based on virtual reservoir according to claim 3, it is characterised in that:
The day amendment electricity, which calculates, includes:
2.1 reservoir inflows are less than the day amendment electricity calculating for completely sending out flow:
For withered season reservoir operation by shipping, water supply, construction, library bank safety, lower reservoir run factor constraints, it is left right bank electricity
It stands in the case where being unsatisfactory for constraint condition, calculates amendment electricity；Amendment electricity is divided into three types: amendment electricityMinimum discharge, amendment electricity
AmountThe super upper limit of water levelWith amendment electricityThe super lower limit of water level；
1) minimum discharge limits:
Only left bank is not up to the minimum discharge distributed:
(XE1,t)min q=E (△ q1,t) (5)
Only right bank is not up to the minimum discharge distributed:
(XE2,t)min q=E (△ q2,t) (6)
Other situations:
(XEi,t)min q=0 (7)
In formula 5,6,7:
(XEi,t)minqIt is violated for side and the day that minimum discharge constraint generates corrects electricity；
E(△qi,t) daily electricity that virtual storage outflow generates, electricity, which is corresponded to, for side minimum discharge subtracts actual power generation；
2) peak level limits:
The super upper limit of the virtual water level in left bank, right bank do not transfinite:
(XE1,t)max h=E (△ q1,t) (8)
The super upper limit of the virtual water level of right bank, left bank are not transfinited:
(XE2,t)max h=E (△ q2,t) (9)
Other situations:
(XEi,t)max h=0 (10)
In formula 8,9,10:
(XEi,t)maxhIt is violated for side and the day that peak level constraint generates corrects electricity；
E(△qi,t) daily electricity that generates of virtual storage outflow, be side to avoid virtually abandoning water on the basis of practical storage outflow
The corresponding daily electricity of increased flow；
3) lowest water level limits:
The virtual water level in left bank is lower than lower limit, and the virtual water level of right bank is higher than lower limit:
(XE1,t)min h=F1,t-1-F1,t (11)
The virtual water level of right bank is lower than lower limit, and the virtual water level in left bank is higher than lower limit:
(XE2,t)min h=F2,t-1-F2,t (12)
Other situations:
(XEi,t)min h=0 (13)
In formula 11,12,13:
(XEi,t)minhElectricity is corrected due to violating the day that minimum constraint generates for side；
Fi,t-1For the corresponding accumulation of energy electricity of the side virtual water level of reservoir proxima luce (prox. luc)；
Fi,tFor the corresponding accumulation of energy electricity of the side reservoir same day virtual water level；
2.2 reservoir inflows are greater than the day amendment electricity calculating for completely sending out flow:
Reservoir inflow, which is greater than, completely sends out flow, and two sides power station generates electricity according to maximum capacity, the uneven electricity later period that early period generates without
Ability is balanced, therefore deviation electricity is 0 in the case.
6. the power station deviation electricity calculation method based on virtual reservoir according to claim 3, it is characterised in that: in the phase
Correcting electricity algorithm includes:
3.1 storages, which are less than, completely sends out flow:
In view of needing to violate the cushion space of combustion adjustment after constraint to two power grids, electricity minimum discharge, phase are corrected in the phase
The super upper limit of interior amendment electricity and threshold value is respectively set in the amendment super lower limit of electricity in the phase, corrects the super upper limit of electricity and phase in mid-term
The super lower limit of interior amendment electricity corrects electric quantity accumulation calculating day in scheduling to last, and the water level upper limit of the day amendment super upper limit of electricity is the water of setting
The position upper limit adds threshold value, and the water level for the water level lower limit setting that the super lower limit of amendment electricity calculates in the phase subtracts threshold value；Amendment in phase
Electricity minimum discharge is just to be included in, the determination of dependent thresholds is by two electricity after aggregate-value is greater than the given threshold of such electricity
Net and power plant determine after negotiating；
In formula 14:
XEiElectricity is corrected in phase for the virtual reservoir in side；
(XEi,t)minqIt is violated for side and the day that minimum discharge constraint generates corrects electricity；
(XEi,t)minhIt is violated for side and the day that lowest water level constraint generates corrects electricity；
(XEi,t)maxhIt is violated for side and the day that peak level constraint generates corrects electricity；
(DEi)minqFor the threshold value for correcting electricity minimum discharge in the phase of side；
(DHi)minhFor the corresponding threshold value of side lowest water level；
(DHi)maxhFor the corresponding threshold value of side peak level；
3.2 storages, which are greater than, completely sends out flow:
It does not calculate and corrects electricity in the accumulative phase, deviation electricity is 0.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110542585.XA CN113327177B (en) | 2018-09-14 | 2018-09-14 | Left and right shore power station deviation electric quantity calculation method based on virtual reservoir water level and flow |
| CN201811076473.4A CN109272229B (en) | 2018-09-14 | 2018-09-14 | Power station deviation electric quantity calculation method based on virtual reservoir |
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| CN109933892A (en) * | 2019-03-12 | 2019-06-25 | 中国电建集团中南勘测设计研究院有限公司 | A kind of modification method of water temperature model power station letdown flow boundary condition |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130318118A1 (en) * | 2012-05-24 | 2013-11-28 | Alibaba Group Holding Limited | Completing application interfaces |
| CN103745023A (en) * | 2013-11-22 | 2014-04-23 | 华中科技大学 | Coupling modeling method for hydropower station power generated output scheme making and optimal load distribution |
| CN105303318A (en) * | 2015-10-30 | 2016-02-03 | 国家电网公司 | Trans-regional power grid transaction settlement processing method based on deviation electric quantity responsibility judgment |
| CN106570744A (en) * | 2016-10-26 | 2017-04-19 | 清华大学 | Electric power transaction settlement method considering deviation electric quantity hierarchical processing and transaction component ranking |
| CN107392432A (en) * | 2017-06-27 | 2017-11-24 | 东南大学 | The frequency modulation electric reserve market implementation method of long-term electricity contract energy decomposition in consideration |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103971181B (en) * | 2014-05-20 | 2017-09-19 | 河海大学 | A kind of economic load dispatching method a few days ago for virtual plant |
| JPWO2017154096A1 (en) * | 2016-03-08 | 2018-06-28 | 三菱電機株式会社 | Laser light source device and control method thereof |
| CN108470249B (en) * | 2018-03-16 | 2019-04-09 | 大连理工大学 | A kind of Hydropower Stations short-term electricity generation dispatching method coupling clustering and decision tree |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130318118A1 (en) * | 2012-05-24 | 2013-11-28 | Alibaba Group Holding Limited | Completing application interfaces |
| CN103745023A (en) * | 2013-11-22 | 2014-04-23 | 华中科技大学 | Coupling modeling method for hydropower station power generated output scheme making and optimal load distribution |
| CN105303318A (en) * | 2015-10-30 | 2016-02-03 | 国家电网公司 | Trans-regional power grid transaction settlement processing method based on deviation electric quantity responsibility judgment |
| CN106570744A (en) * | 2016-10-26 | 2017-04-19 | 清华大学 | Electric power transaction settlement method considering deviation electric quantity hierarchical processing and transaction component ranking |
| CN107392432A (en) * | 2017-06-27 | 2017-11-24 | 东南大学 | The frequency modulation electric reserve market implementation method of long-term electricity contract energy decomposition in consideration |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109933892A (en) * | 2019-03-12 | 2019-06-25 | 中国电建集团中南勘测设计研究院有限公司 | A kind of modification method of water temperature model power station letdown flow boundary condition |
| CN109933892B (en) * | 2019-03-12 | 2023-04-07 | 中国电建集团中南勘测设计研究院有限公司 | Correction method for boundary condition of lower discharge of water temperature model power station |
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| CN109272229B (en) | 2021-07-06 |
| CN113327177B (en) | 2022-04-19 |
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