CN106712004A - Standard output curve-based hydraulic power plant unit optimization method - Google Patents
Standard output curve-based hydraulic power plant unit optimization method Download PDFInfo
- Publication number
- CN106712004A CN106712004A CN201710015995.2A CN201710015995A CN106712004A CN 106712004 A CN106712004 A CN 106712004A CN 201710015995 A CN201710015995 A CN 201710015995A CN 106712004 A CN106712004 A CN 106712004A
- Authority
- CN
- China
- Prior art keywords
- unit
- head
- standard
- rated
- optimization method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
-
- 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
- H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
- H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
-
- 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
- H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Water Turbines (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The present invention discloses a standard output curve-based hydraulic power plant unit optimization method. According to the technical scheme of the invention, the standard output curve of a current hydraulic head unit is adopted as a reference standard for the load adjustment of the unit. In this way, the current output state of the unit can be intuitively observed. Through the real-time adjustment of the output state of the unit, the output of the unit is enabled to be in the optimum state. Therefore, the method provides a basis for optimizing the scheduling of the unit, reducing the cost and improving the efficiency. Meanwhile, the output state of the unit serves as a production management index for the output efficiency of the unit.
Description
Technical field
The present invention relates to a kind of hydroelectric power plant's set optimization method based on standard power curve, belong to hydroelectric power plant's set optimization
Regulation and control field.
Background technology
In hydroelectric power system, the quality to unit output regulation control is directly connected to the production and operation feelings in power station
Condition.At present, water power remote control central monitor system or hydraulic power station monitoring and control system, the regulation of exerting oneself to unit are main by artificial
Participate in, when head is during gradually changing, can only by virtue of experience predict that unit can currently bear great load operation,
The index that neither one may be referred to, more cannot intuitively observe unit allows the standard of exerting oneself in current head.
The content of the invention
In order to solve the above-mentioned technical problem, the invention provides a kind of hydroelectric power plant's set optimization based on standard power curve
Method.
In order to achieve the above object, the technical solution adopted in the present invention is：
A kind of hydroelectric power plant's set optimization method based on standard power curve, including,
Rated head data acquisition：Under collection unit rated head, corresponding maximum guide vane opening of exerting oneself at full capacity；
Less than rated head data acquisition：Less than under unit rated head, stator reaches unit during maximum opening for collection
Exert oneself；
According to rated head data and less than rated head data, fitting unit standard is exerted oneself equation；
Exerted oneself equation using generator standard, the standard for calculating unit under current head is exerted oneself, and draws standard power curve；
The current actual power curve of head unit is compared with standard power curve, judges whether unit exerts oneself in optimal
State, by real-time regulation unit output, optimizes to unit.
During collection rated head data, the multiple maximum guide vane opening of collection different periods is averaged.
When collection is less than rated head data, the multiple unit outputs of collection are averaged.
Unit standard equation of exerting oneself is,
Wherein, P be current head H under unit standard exert oneself, P0It is unit nominal output, k is power factor, HxIt is zero load
Head, H0It is rated head.
As H ＜ H0When, k and H are determined using arithmetic average algorithmx, it is specific as follows,
Determine straight line according to 2 points, (the H that will be gathered1,P1),(H0,P0)；(H2,P2),(H0,P0)；…；(Hn,Pn),
(H0,P0) fitting shaping n straight lines, wherein, P1It is head H1Lower unit output, P2It is head H2Lower unit output, PnIt is head HnUnder
Unit output, H1、H2、…、HnRespectively less than H0；
Respective power factor and unloaded head are calculated according to n straight lines respectively, the n average value of power factor is then taken
K is obtained, n the average of unloaded head is taken and is worth to Hx。
Exerted oneself equation using generator standard, the standard for calculating unit under current head is exerted oneself, and drawing standard according to the time goes out
Force curve.
The beneficial effect that the present invention is reached：The present invention is adjusted current head unit standard power curve as unit load
The normative reference of section, can intuitively observe current unit output state, by real-time regulation unit output, reach optimal shape
State, is set optimization scheduling, and cost efficiency provides foundation, and can be used as the production management index of unit output efficiency.
Brief description of the drawings
Fig. 1 is unit head characteristic curve.
Fig. 2 is that unit operates combined characteristic.
Fig. 3 is flow chart of the method for the present invention.
Fig. 4 is unit standard power curve figure.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.Following examples are only used for clearly illustrating the present invention
Technical scheme, and can not be limited the scope of the invention with this.
Unit head characteristic curve is the relation curve for representing unit output and head, as shown in figure 1, according to unit head
Characteristic curve understands that unit output is proportionate with head, and the curve under each guide vane opening draws since corresponding unloaded head point
Go out, near linear relation, guide vane opening is bigger, its straight line is relatively steeper.Combined characteristic is operated with reference to unit, such as Fig. 2 institutes
Show, when head is higher, unit output is larger, now exert oneself is limited by capacity motor, its restraining line is a vertical curve；Head compared with
When low, unit output is smaller, even if adjustment guide vane opening, exerts oneself and also not necessarily reach rated value, now exerts oneself by maximum stator
Head relation straight line limitation of exerting oneself under aperture.The unit output upper limit under different heads is exerted oneself as standard, unit it is actual go out
Power is exerted oneself closer to standard, then efficiency of generating unit is higher.
According to above-mentioned analysis, concrete scheme as shown in figure 3, a kind of set optimization side of hydroelectric power plant based on standard power curve
Method, comprises the following steps：
Step 1, rated head data acquisition：Under collection unit rated head, corresponding maximum stator of exerting oneself at full capacity is opened
Degree.
In order to reduce data error as far as possible, it is ensured that gathered data accuracy, to being exerted oneself at full capacity under unit rated head
Correspondence maximum guide vane opening, multiple maximum guide vane opening (at least 10) of collection different periods is averaged.
Step 2, less than rated head data acquisition：Collection is less than under unit rated head, when stator reaches maximum opening
Unit output.
Similar with rated head data acquisition, unit during to reaching maximum opening less than stator under unit rated head goes out
Power, the multiple unit outputs of collection, averages.
Step 3, according to rated head data and less than rated head data, fitting unit standard is exerted oneself equation.
Unit standard equation of exerting oneself is：
Wherein, P be current head H under unit standard exert oneself, P0It is unit nominal output, k is power factor, HxIt is zero load
Head, H0It is rated head.
As H ＜ H0When, k and H are determined using arithmetic average algorithmx, it is specific as follows：
S1, straight line is determined according to 2 points, (the H that will be gathered1,P1),(H0,P0)；(H2,P2),(H0,P0)；…；(Hn,
Pn),(H0,P0) fitting shaping n straight lines, wherein, P1It is head H1Lower unit output, P2It is head H2Lower unit output, PnIt is head
HnLower unit output, H1、H2、…、HnRespectively less than H0；
S2, respective power factor and unloaded head are calculated according to n straight lines respectively, then take putting down for n power factor
K is worth to, n the average of unloaded head is taken and is worth to Hx。
Step 4, is exerted oneself equation using generator standard, and the standard for calculating unit under current head is exerted oneself, and is drawn according to the time
Standard power curve, as shown in Figure 4.
Whether step 5, the current actual power curve of head unit is compared with standard power curve, judge unit in most
Excellent state of exerting oneself, by real-time regulation unit output, optimizes to unit.
The normative reference that the above method adjusts current head unit standard power curve as unit load, can intuitively see
Current unit output state is examined, by real-time regulation unit output, optimum state is reached, is set optimization scheduling, drop is originally
Synergy provides foundation, and can be used as the production management index of unit output efficiency.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, on the premise of the technology of the present invention principle is not departed from, some improvement and deformation can also be made, these improve and deform
Also should be regarded as protection scope of the present invention.
Claims (6)
1. a kind of hydroelectric power plant's set optimization method based on standard power curve, it is characterised in that：Including,
Rated head data acquisition：Under collection unit rated head, corresponding maximum guide vane opening of exerting oneself at full capacity；
Less than rated head data acquisition：Less than under unit rated head, stator reaches unit output during maximum opening for collection；
According to rated head data and less than rated head data, fitting unit standard is exerted oneself equation；
Exerted oneself equation using generator standard, the standard for calculating unit under current head is exerted oneself, and draws standard power curve；
The current actual power curve of head unit is compared with standard power curve, judges unit whether in optimal shape of exerting oneself
State, by real-time regulation unit output, optimizes to unit.
2. a kind of hydroelectric power plant's set optimization method based on standard power curve according to claim 1, it is characterised in that：
During collection rated head data, the multiple maximum guide vane opening of collection different periods is averaged.
3. a kind of hydroelectric power plant's set optimization method based on standard power curve according to claim 1, it is characterised in that：
When collection is less than rated head data, the multiple unit outputs of collection are averaged.
4. a kind of hydroelectric power plant's set optimization method based on standard power curve according to claim 1, it is characterised in that：
Unit standard equation of exerting oneself is,
Wherein, P be current head H under unit standard exert oneself, P0It is unit nominal output, k is power factor, HxIt is unloaded head,
H0It is rated head.
5. a kind of hydroelectric power plant's set optimization method based on standard power curve according to claim 4, it is characterised in that：
As H ＜ H0When, k and H are determined using arithmetic average algorithmx, it is specific as follows,
Determine straight line according to 2 points, (the H that will be gathered1,P1),(H0,P0)；(H2,P2),(H0,P0)；…；(Hn,Pn),(H0,
P0) fitting shaping n straight lines, wherein, P1It is head H1Lower unit output, P2It is head H2Lower unit output, PnIt is head HnLower machine
Group is exerted oneself, H1、H2、…、HnRespectively less than H0；
Respective power factor and unloaded head are calculated according to n straight lines respectively, n the average of power factor is then taken and is worth to
K, takes n the average of unloaded head and is worth to Hx。
6. a kind of hydroelectric power plant's set optimization method based on standard power curve according to claim 1, it is characterised in that：
Exerted oneself equation using generator standard, the standard for calculating unit under current head is exerted oneself, and standard power curve is drawn according to the time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015995.2A CN106712004A (en) | 2017-01-10 | 2017-01-10 | Standard output curve-based hydraulic power plant unit optimization method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710015995.2A CN106712004A (en) | 2017-01-10 | 2017-01-10 | Standard output curve-based hydraulic power plant unit optimization method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106712004A true CN106712004A (en) | 2017-05-24 |
Family
ID=58908105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710015995.2A Pending CN106712004A (en) | 2017-01-10 | 2017-01-10 | Standard output curve-based hydraulic power plant unit optimization method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106712004A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196346A (en) * | 2017-05-31 | 2017-09-22 | 南京河海南自水电自动化有限公司 | A kind of optimization method of hydroelectric power plant's unit optimal output |
| CN109143893A (en) * | 2018-09-19 | 2019-01-04 | 国网湖南省电力有限公司 | A kind of Turbine Behavior acquisition methods based on protype measurement |
| CN111321713A (en) * | 2019-06-19 | 2020-06-23 | 河南郑大水利科技有限公司 | Hydropower station unit operation method based on ecological flow |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130123994A1 (en) * | 2011-11-15 | 2013-05-16 | Palo Alto Research Center Incorporated | Using planning to control demand response and supply choices in a managed electrical system |
| CN105863946A (en) * | 2016-04-05 | 2016-08-17 | 华自科技股份有限公司 | Hydropower station optimized operation control method and system |
-
2017
- 2017-01-10 CN CN201710015995.2A patent/CN106712004A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130123994A1 (en) * | 2011-11-15 | 2013-05-16 | Palo Alto Research Center Incorporated | Using planning to control demand response and supply choices in a managed electrical system |
| CN105863946A (en) * | 2016-04-05 | 2016-08-17 | 华自科技股份有限公司 | Hydropower station optimized operation control method and system |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107196346A (en) * | 2017-05-31 | 2017-09-22 | 南京河海南自水电自动化有限公司 | A kind of optimization method of hydroelectric power plant's unit optimal output |
| CN109143893A (en) * | 2018-09-19 | 2019-01-04 | 国网湖南省电力有限公司 | A kind of Turbine Behavior acquisition methods based on protype measurement |
| CN109143893B (en) * | 2018-09-19 | 2021-06-15 | 国网湖南省电力有限公司 | Water turbine characteristic acquisition method based on real machine actual measurement |
| CN111321713A (en) * | 2019-06-19 | 2020-06-23 | 河南郑大水利科技有限公司 | Hydropower station unit operation method based on ecological flow |
| CN111321713B (en) * | 2019-06-19 | 2021-05-11 | 河南郑大水利科技有限公司 | Hydropower station unit operation method based on ecological flow |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103942728B (en) | Cascade hydropower station group daily power generation plan making method | |
| CN110417048B (en) | Direct-current power grid transmitting and receiving end combined peak regulation optimization method considering source grid load constraint | |
| CN101931241B (en) | Wind farm grid-connected coordination control method | |
| CN110970911B (en) | Control method for mutual superposition of AGC and primary frequency modulation in opening degree mode | |
| CN106056256B (en) | Interactive micro-grid scheduling method for balancing power supply and demand relationship | |
| CN104134994B (en) | A kind of AGC of utilization carries out the out-of-limit Corrective control method of stable cross section trend | |
| CN106712004A (en) | Standard output curve-based hydraulic power plant unit optimization method | |
| CN108695857B (en) | Automatic voltage control method, device and system for wind power plant | |
| CN104037805B (en) | A kind of photovoltaic plant taking into account power system security constraints can power generation margin distribution method | |
| CN103259267A (en) | Mold splitting type voltage control method for wind power plant cluster | |
| CN104362671A (en) | Multi-objective optimization coordination method for combined supply of large-scale wind power and pumped storage | |
| CN104917204A (en) | Wind farm active power optimization control method | |
| CN107730396B (en) | A kind of electric system Real-time Balancing method considering scale wind-powered electricity generation wave characteristic | |
| CN107196346A (en) | A kind of optimization method of hydroelectric power plant's unit optimal output | |
| CN109428343B (en) | Optimized planning method and device for power transmission capacity of new energy base outgoing channel | |
| CN206092359U (en) | Air compressor machine team control control system based on tolerance is calculated for demand | |
| CN104035475B (en) | Automatic active-power control method with both safety of power grid and minimum light waste considered for photovoltaic power stations | |
| CN104578174A (en) | Master station AGC unit control method based on instructions | |
| CN106099994B (en) | A kind of control method for the stable electric generation system for being adapted to isolated power network from far-off regions | |
| CN112134291B (en) | Reactive power voltage regulation control method for large wind power plant | |
| CN104050533A (en) | Electric power system wind power plant fair-share scheduling method based on minimum wind curtailment control | |
| CN104078996A (en) | Method for controlling threshold-crossing of active power of wind power plant and power grid connecting line sections | |
| CN104156785A (en) | Generation schedule optimization method taking into consideration thermal power unit-driven coal mill start and stop | |
| CN106887848B (en) | Voltage power-less real-time control method based on Fuzzy Pattern Recognition | |
| CN105576712B (en) | A kind of active power of wind power field On-Line Control Method based on adaptive pole configuration |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170524 |