CN110705784B - Optimized operation evaluation method for radial flow type hydropower station - Google Patents
Optimized operation evaluation method for radial flow type hydropower station Download PDFInfo
- Publication number
- CN110705784B CN110705784B CN201910932641.3A CN201910932641A CN110705784B CN 110705784 B CN110705784 B CN 110705784B CN 201910932641 A CN201910932641 A CN 201910932641A CN 110705784 B CN110705784 B CN 110705784B
- Authority
- CN
- China
- Prior art keywords
- optimized operation
- flow
- hydropower station
- total output
- unit
- 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.)
- Active
Links
- 238000011156 evaluation Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000005457 optimization Methods 0.000 claims description 7
- 238000010248 power generation Methods 0.000 abstract description 9
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q10/00—Administration; Management
- G06Q10/06—Resources, workflows, human or project management; Enterprise or organisation planning; Enterprise or organisation modelling
- G06Q10/063—Operations research, analysis or management
- G06Q10/0639—Performance analysis of employees; Performance analysis of enterprise or organisation operations
- G06Q10/06393—Score-carding, benchmarking or key performance indicator [KPI] analysis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
-
- 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
- Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
Landscapes
- Business, Economics & Management (AREA)
- Human Resources & Organizations (AREA)
- Engineering & Computer Science (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Tourism & Hospitality (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Marketing (AREA)
- Entrepreneurship & Innovation (AREA)
- General Business, Economics & Management (AREA)
- Development Economics (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Educational Administration (AREA)
- Game Theory and Decision Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- Control Of Eletrric Generators (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
Abstract
The invention provides an optimized operation evaluation method for a radial flow type hydropower station, which is characterized in that the actual power generation condition of the radial flow type hydropower station which does not adopt optimized operation is analyzed, the frequency arrangement is carried out on data, the output and the incoming flow of the hydropower station adopting an optimized operation mode are collected and compared with the historical condition, so that the power generation conditions of the same or similar working conditions are compared, and the optimized operation is objectively evaluated.
Description
Technical Field
The invention relates to water conservancy projects, in particular to an optimized operation evaluation method for a radial-flow type hydropower station.
Background
The radial-flow type hydropower station is a hydropower station which directly guides water to generate electricity through radial flow, the hydropower station can not adjust the radial flow, and the guided generated water amount is generally stabilized by building a pressure forebay. The capacity of the pressure forebay is limited, the power generation head of the radial flow type hydropower station generally has small fluctuation, and the main serious influence on the power generation benefit is the power generation amount, namely the actual incoming flow of the hydropower station.
The method comprises the steps of carrying out optimized operation on the radial-flow type hydropower station, and analyzing the starting-up combination and the starting-up load distribution which possibly occur in the hydropower station through an optimized operation theory, so that the starting-up combination and the starting-up load distribution with the largest generated energy are selected under the condition of determining the incoming flow. The runoff type hydropower station is not operated optimally, is started through experience often, so that the unit cannot effectively and fully utilize the incoming water, the water quantity is wasted, the matching performance of the unit and the flow can be improved by adopting the optimized operation, and the power generation benefit is improved. The optimization operation of the existing power station is less, and even if an optimization operation mode is adopted, reasonable evaluation standards are lacked, so that the benefit of the optimization operation cannot be objectively evaluated.
Disclosure of Invention
Based on the above, the invention provides an optimized operation evaluation method for a radial flow type hydropower station, wherein the radial flow type hydropower station comprises a pressure forebay, a water conduit, a factory building, a unit and a tail water pool, and is characterized in that: the evaluation method comprises the following steps:
s1: acquiring multi-year operation data of the radial flow type hydropower station, wherein the multi-year operation data comprise historical actual incoming flow of the radial flow type hydropower station and total output of a power station unit corresponding to the flow;
s2: carrying out frequency arrangement according to the actual incoming flow, and corresponding to the total output of the power station units one by one, wherein when the actual incoming flows are the same, the average value of the total output of the power station units corresponding to a plurality of actual incoming flows is taken as the total output value corresponding to the actual incoming flows;
s3: the method comprises the following steps that a radial-flow type power station adopts an optimized operation mode, and the optimized operation mode is that a hydropower station unit adopts a radial-flow type hydropower station optimized operation theory to operate the unit; counting the corresponding incoming flow and the total output value of the unit in the operation mode;
s4: comparing the incoming flow in the step S3 with the frequency arrangement in the step S2, calculating a first frequency of the incoming flow in the step S3, finding out two actual incoming flow frequencies which are closest to the first frequency, wherein the two actual incoming flow frequencies are respectively greater than or less than the first frequency, finding out actual incoming flows corresponding to the two actual incoming flow frequencies and corresponding total output of the unit, and calculating the total output of the first unit corresponding to the first frequency according to a difference method;
s5: dividing the total output of the unit in the optimized operation mode in the step S3 by the total output of the first unit in the step S4, and calculating to obtain an evaluation coefficient;
s6: when the evaluation coefficient is greater than 1 and a set value is added, the optimized operation evaluation result is excellent; when the evaluation coefficient is less than 1 minus a set value, the optimized operation evaluation result is a difference; when the evaluation coefficient is larger than 1 minus the set value and smaller than 1 plus the set value, the evaluation result is medium.
Preferably, the frequency arrangement result in step S2 forms a database, and is stored by a computer, so as to facilitate retrieval and storage of data.
Preferably, the set value is 0.05 or 0.1 or 0.15.
The invention has the advantages that:
the invention provides an optimized operation evaluation method for a radial flow type hydropower station, which is characterized in that the actual power generation condition of the radial flow type hydropower station which does not adopt optimized operation is analyzed, the frequency arrangement is carried out on data, the output and the incoming flow of the hydropower station adopting an optimized operation mode are collected and compared with the historical condition, so that the power generation conditions of the same or similar working conditions are compared, and the optimized operation is objectively evaluated.
The specific implementation mode is as follows: the structure defined in the present invention will be explained in detail with reference to the embodiments.
The invention provides an optimized operation evaluation method for a runoff type hydropower station, wherein the runoff type hydropower station comprises a pressure forebay, a water diversion pipeline, a factory building, a unit and a tail water pool, and is characterized in that: the evaluation method comprises the following steps:
s1: acquiring multi-year operation data of the radial flow type hydropower station, wherein the multi-year operation data comprise historical actual incoming flow of the radial flow type hydropower station and total output of a power station unit corresponding to the flow;
s2: carrying out frequency arrangement according to the actual incoming flow, and corresponding to the total output of the power station units one by one, wherein when the actual incoming flows are the same, the average value of the total output of the power station units corresponding to a plurality of actual incoming flows is taken as the total output value corresponding to the actual incoming flows;
s3: the method comprises the following steps that a runoff type power station adopts an optimized operation mode, and the optimized operation mode is that a hydropower station unit adopts a runoff type hydropower station optimized operation theory to operate the unit; counting the corresponding incoming flow and the total output value of the unit in the operation mode;
s4: comparing the incoming flow in the step S3 with the frequency arrangement in the step S2, calculating a first frequency of the incoming flow in the step S3, finding out two actual incoming flow frequencies which are closest to the first frequency, wherein the two actual incoming flow frequencies are respectively greater than or less than the first frequency, finding out actual incoming flows corresponding to the two actual incoming flow frequencies and corresponding total output of the unit, and calculating the total output of the first unit corresponding to the first frequency according to a difference method;
s5: dividing the total output of the unit in the optimized operation mode in the step S3 by the total output of the first unit in the step S4, and calculating to obtain an evaluation coefficient;
s6: when the evaluation coefficient is greater than 1 and a set value is added, the optimized operation evaluation result is excellent; when the evaluation coefficient is less than 1 minus a set value, the optimized operation evaluation result is a difference; when the evaluation coefficient is larger than 1 minus the set value and smaller than 1 plus the set value, the evaluation result is medium.
Preferably, the frequency arrangement result in step S2 forms a database, and is stored by a computer, so as to facilitate retrieval and storage of data.
Preferably, the set value is 0.05 or 0.1 or 0.15.
For a radial-flow power station, the incoming flow refers to the actual generating flow of the hydropower station; and when the incoming flow is greater than the full sending flow, taking the full sending flow as the incoming flow, wherein the incoming flow utilized by the power station is the full sending flow under the working condition.
The difference calculation is that linear difference calculation is carried out between two values; through the difference calculation, data errors can be effectively avoided, and the evaluation precision is improved.
Generally, an optimal or moderate evaluation result is obtained by adopting an optimized operation mode, and if the result is poor, the operation reason of the unit is searched, or whether the optimized mode is reasonable or not is judged; by re-establishing the optimized operation scheme, the evaluation method is continuously used for carrying out optimized operation evaluation, and the power generation benefit is improved.
If the evaluation result is excellent, the optimized operation result is proved to be better, and the optimized operation mode in the step S3 is continuously adopted for operation; and if the evaluation result is a medium or poor result, the optimization operation mode is required to be readjusted, and the execution is continued according to the evaluation method until the optimization operation result is excellent.
The measurement of the incoming flow may be provided by flow measuring means, such as ultrasonic meters, in the penstock.
The above-described embodiments are only preferred embodiments of the present invention, and the scope of the present invention should not be construed as being limited to the specific forms set forth in the examples, but also includes equivalent technical means which can be conceived by those skilled in the art from the present inventive concept.
Claims (3)
1. A method for evaluating the optimized operation of a radial-flow type hydropower station comprises a pressure forebay, a water conduit, a factory building, a unit and a tail water pool, and is characterized in that: the evaluation method comprises the following steps:
s1: acquiring the multi-year operation data of the radial flow type hydropower station, wherein the multi-year operation data comprise historical actual incoming flow of the radial flow type hydropower station and total output of a power station unit corresponding to the flow;
s2: carrying out frequency arrangement according to the actual incoming flow, and corresponding to the total output of the power station units one by one, wherein when the actual incoming flows are the same, the average value of the total output of the power station units corresponding to a plurality of actual incoming flows is taken as the total output value corresponding to the actual incoming flows;
s3: the method comprises the following steps that a radial-flow type power station adopts an optimized operation mode, and the optimized operation mode is that a hydropower station unit adopts a radial-flow type hydropower station optimized operation theory to operate the unit; counting the corresponding incoming flow and the total output value of the unit in the operation mode;
s4: comparing the incoming flow in the step S3 with the frequency arrangement in the step S2, calculating a first frequency of the incoming flow in the step S3, finding out two actual incoming flow frequencies which are closest to the first frequency, wherein the two actual incoming flow frequencies are respectively greater than or less than the first frequency, finding out actual incoming flows corresponding to the two actual incoming flow frequencies and corresponding total output of the unit, and calculating the total output of the first unit corresponding to the first frequency according to a difference method;
s5: dividing the total output of the unit in the optimized operation mode in the step S3 by the total output of the first unit in the step S4, and calculating to obtain an evaluation coefficient;
s6: when the evaluation coefficient is greater than 1 and a set value is added, the optimized operation evaluation result is excellent; when the evaluation coefficient is less than 1 minus a set value, the optimized operation evaluation result is a difference; when the evaluation coefficient is larger than 1 minus the set value and smaller than 1 plus the set value, the evaluation result is medium;
s7: if the evaluation result is excellent, the optimized operation result is proved to be better, and the optimized operation mode in the step S3 is continuously adopted for operation; and if the evaluation result is a medium or poor result, the optimization operation mode is required to be readjusted, and the execution is continued according to the evaluation method until the optimization operation result is excellent.
2. The method for evaluating the optimal operation of a radial-flow hydropower station according to claim 1, characterized in that: and forming a database by the frequency arrangement result in the step S2, and storing the database by a computer, so that the data can be called and stored conveniently.
3. The method for evaluating the optimal operation of a radial flow hydropower station according to any one of claims 1-2, wherein: the set value is 0.05 or 0.1 or 0.15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932641.3A CN110705784B (en) | 2019-09-29 | 2019-09-29 | Optimized operation evaluation method for radial flow type hydropower station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910932641.3A CN110705784B (en) | 2019-09-29 | 2019-09-29 | Optimized operation evaluation method for radial flow type hydropower station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110705784A CN110705784A (en) | 2020-01-17 |
| CN110705784B true CN110705784B (en) | 2023-04-07 |
Family
ID=69197002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910932641.3A Active CN110705784B (en) | 2019-09-29 | 2019-09-29 | Optimized operation evaluation method for radial flow type hydropower station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110705784B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111859668B (en) * | 2020-07-21 | 2023-11-17 | 河南郑大水利科技有限公司 | Runoff hydropower station optimal operation method based on big data |
| CN111738625B (en) * | 2020-07-21 | 2024-02-20 | 河南郑大水利科技有限公司 | High water level operation method for front pool of radial hydropower station |
| CN111832830B (en) * | 2020-07-21 | 2022-12-16 | 河南郑大水利科技有限公司 | Tail water level-based big data optimization operation method for radial flow type hydropower station |
| CN111832829B (en) * | 2020-07-21 | 2023-06-02 | 黑龙江省水利水电集团有限公司 | Reservoir hydropower station optimal operation method based on big data |
| CN111859823B (en) * | 2020-07-22 | 2023-10-17 | 河南郑大水利科技有限公司 | Method and system for determining starting-up of radial hydropower station according to incoming flow |
| CN114876719B (en) * | 2022-06-27 | 2023-11-14 | 河南郑大水利科技有限公司 | Intelligent regulation and control method and system for ecological flow of hydropower station |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071230A1 (en) * | 2015-10-30 | 2017-05-04 | 南京南瑞集团公司 | Method for short-term optimal scheduling of multi-agent hydropower station group |
| CN108223258A (en) * | 2018-01-16 | 2018-06-29 | 河南创辉水利水电工程有限公司 | A kind of plant without storage's automatic optimization method |
| CN108252276A (en) * | 2018-02-09 | 2018-07-06 | 河南创辉水利水电工程有限公司 | A kind of plant without storage's automatic optimization method based on adjusting of contributing |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9811061B1 (en) * | 2001-05-18 | 2017-11-07 | The Energy Authority, Inc. | Method for management and optimization of hydropower generation and consumption |
| CN105243502B (en) * | 2015-10-19 | 2016-07-13 | 华中科技大学 | A kind of power station schedule risk appraisal procedure based on runoff interval prediction and system |
| CN107392446B (en) * | 2017-07-03 | 2018-09-21 | 华中科技大学 | A kind of step power station scheduling scheme evaluation method based on sensitivity analysis |
-
2019
- 2019-09-29 CN CN201910932641.3A patent/CN110705784B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071230A1 (en) * | 2015-10-30 | 2017-05-04 | 南京南瑞集团公司 | Method for short-term optimal scheduling of multi-agent hydropower station group |
| CN108223258A (en) * | 2018-01-16 | 2018-06-29 | 河南创辉水利水电工程有限公司 | A kind of plant without storage's automatic optimization method |
| CN108252276A (en) * | 2018-02-09 | 2018-07-06 | 河南创辉水利水电工程有限公司 | A kind of plant without storage's automatic optimization method based on adjusting of contributing |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110705784A (en) | 2020-01-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110705784B (en) | Optimized operation evaluation method for radial flow type hydropower station | |
| CN107366560B (en) | A kind of exhaust steam pressure optimization method of wet type cooling unit steam turbine | |
| Zheng et al. | Pathways toward enhanced techno-economic performance of flow battery systems in energy system applications | |
| US20160025071A1 (en) | Method of computing theoretical power of wind farm based on sample wind turbine method | |
| Mladenov et al. | Characterisation and evaluation of flexibility of electrical power system | |
| CN108252276A (en) | A kind of plant without storage's automatic optimization method based on adjusting of contributing | |
| CN111321713B (en) | Hydropower station unit operation method based on ecological flow | |
| EP3499671A1 (en) | Power usage prediction system and method | |
| CN103307446B (en) | Energy-saving method for stable flow water system | |
| CN109492809B (en) | Wind power plant value evaluation method based on node electricity price | |
| CN108223245A (en) | A kind of overall process quantitative estimation method of turbine-generator units water power calculation evaluation | |
| CN110717626B (en) | Optimal operation evaluation method for annual adjustment reservoir hydropower station | |
| CN110705786B (en) | Evaluation method for optimal operation of cascade hydropower station | |
| CN110429591A (en) | A kind of power transmission network utilization rate appraisal procedure based on electric system timing coupling | |
| CN108335045A (en) | A kind of plant without storage's automatic optimization method based on aperture regulation | |
| CN115345370A (en) | Vine Copula model-based wind turbine generator operation linkage analysis method | |
| CN111859823B (en) | Method and system for determining starting-up of radial hydropower station according to incoming flow | |
| CN111709605B (en) | Reservoir power station peak regulation capability assessment method based on multiple counter regulation effects | |
| CN113919719A (en) | Method and system for calculating power generation flow of radial flow type hydropower station and method for adjusting output | |
| CN109038567B (en) | Method, device and system for evaluating comprehensive conversion efficiency of pumped storage power station | |
| CN111832829B (en) | Reservoir hydropower station optimal operation method based on big data | |
| CN112232661B (en) | Limited output priority assessment method considering offshore wind power grid connection friendliness | |
| Cao et al. | Equivalence method for wind farm based on clustering of output power time series data | |
| Ji et al. | Research on Multiple Objection Operation Strategy Optimization of Distribution Network Including Distributed Energy Storage | |
| Chen et al. | Similarity Law for Model Experiment of Pressurized Water-delivery System with Standard Model Turbine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |