CN110197321B - Multi-unit heat supply unit cooperation based safe and economic heat supply scheduling method - Google Patents
Multi-unit heat supply unit cooperation based safe and economic heat supply scheduling method Download PDFInfo
- Publication number
- CN110197321B CN110197321B CN201910309656.4A CN201910309656A CN110197321B CN 110197321 B CN110197321 B CN 110197321B CN 201910309656 A CN201910309656 A CN 201910309656A CN 110197321 B CN110197321 B CN 110197321B
- Authority
- CN
- China
- Prior art keywords
- heat supply
- unit
- heat
- steam
- user side
- 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
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims description 27
- 239000000446 fuel Substances 0.000 claims description 8
- 238000004364 calculation method Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000000694 effects Effects 0.000 claims description 4
- 230000008020 evaporation Effects 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 238000013461 design Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/18—Applications of computers to steam boiler control
-
- 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
- G06Q10/0631—Resource planning, allocation, distributing or scheduling for enterprises or organisations
- G06Q10/06315—Needs-based resource requirements planning or 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
- 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
- G06Q10/0637—Strategic management or analysis, e.g. setting a goal or target of an organisation; Planning actions based on goals; Analysis or evaluation of effectiveness of goals
-
- 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
Landscapes
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Human Resources & Organizations (AREA)
- Economics (AREA)
- Strategic Management (AREA)
- Entrepreneurship & Innovation (AREA)
- Physics & Mathematics (AREA)
- Marketing (AREA)
- General Business, Economics & Management (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Tourism & Hospitality (AREA)
- Educational Administration (AREA)
- Game Theory and Decision Science (AREA)
- Development Economics (AREA)
- Operations Research (AREA)
- Quality & Reliability (AREA)
- Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Primary Health Care (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention belongs to the technical field of heat supply scheduling, and relates to a safe and economic scheduling method based on multi-unit heat supply unit collaborative heat supply, which comprises the following specific steps: s1: calculating the heat supply demand of a user with a certain heat supply pressure level; s2: the heat regulation center calculates the total heat supply amount required to be provided according to the heat supply demand of the user side; s3: the method comprises the following steps that a heat transfer center calculates the economy of heat supply units of units under jurisdiction in real time, and analyzes the economy ranking of the heat supply units of each unit; s4: and distributing the heat supply load of each unit according to the heat supply economical ranking of each unit on the premise of ensuring the total safety. The invention has the capability of automatically responding to the heat supply demand of the user side in time and safely and economically distributing the heat supply load of each pressure grade of each unit heat supply unit, can avoid the overlarge fluctuation of the heat supply parameter of the user side to influence the safety of the user, can comprehensively consider the safety and the economy of each unit heat supply unit, and achieves the purposes of reducing the number of people and improving the efficiency.
Description
Technical Field
The invention relates to the technical field of heat supply scheduling, in particular to a safe and economic scheduling method based on multi-unit heat supply unit collaborative heat supply.
Background
The power plant heating system pressing force grades are divided into: ultrahigh pressure heat supply (10 MPa, 350 ℃), flow rate of about 200t/h, high pressure heat supply (4.5 MPa, 320 ℃), flow rate of about 50t/h, high temperature medium pressure heat supply (2.1 MPa, 360 ℃), flow rate of 45t/h, low temperature medium pressure heat supply (2.1 MPa, 275 ℃), flow rate of 10t/h, low pressure heat supply (1.0 MPa, 320 ℃) and flow rate of about 300 t/h.
The heat supply control is divided into two layers of a heat supply dispatching center (hereinafter referred to as a heat regulation center) and a unit heat supply unit. The heat regulation center is an upper-layer building for heat supply control and is responsible for monitoring and scheduling the operation of the whole heat supply system. The heat regulation center is configured with a DCS control system independent of the unit set, and adopts the Ovation system of Emerson process control Limited. The heat regulation center carries out centralized control on the heat supply system with each parameter and each unit heat supply unit, each unit heat supply unit is in principle subjected to remote control in a flow mode under the condition that equipment has no fault, the heat regulation center is controlled by the heat regulation center in a manual mode and an automatic mode, each unit heat supply unit can be manually regulated in the heat regulation center in the manual mode, the automatic mode realizes the centralized automatic control on the heat supply system, and each heat supply unit of the heat supply system is set to be operated and standby according to the heat supply load condition. Each unit heat supply unit is a lower-layer control part of the heat supply system, and has two modes of local control and remote control, the local mode can realize the automatic and manual control of the flow and the pressure of a certain unit heat supply unit, the remote control mode can be switched only in the flow mode, and after the remote control mode is switched, the heat supply unit is switched to a heat regulation center, and each heat supply unit is controlled by the heat regulation center.
Because the heating pressure level in the heating system is many, the steam source mouth is complicated, and the heat supply stability requires highly, can produce more serious consequence when user side heat supply flow changes by a wide margin or the heating unit appears the anomaly such as disconnected supply, this has brought very big pressure for the daily prison dish of operation personnel, mode dispatch.
Disclosure of Invention
The invention has the capability of automatically responding to the heat supply demand of the user side in time and safely and economically distributing the heat supply load of each pressure grade of each unit heat supply unit, can avoid the overlarge fluctuation of the heat supply parameter of the user side to influence the safety of the user, can comprehensively consider the safety and the economy of each unit heat supply unit, and achieves the purposes of reducing the number of people and improving the efficiency.
The technical purpose of the invention is realized by the following technical scheme:
a safe and economic dispatching method based on multi-unit heat supply unit collaborative heat supply is characterized by comprising the following steps: the method comprises the following specific steps:
s1: calculating the heat supply demand of a user with a certain heat supply pressure level;
s2: the heat regulation center calculates the total heat supply amount required by all the heat supply unit sets according to the heat supply requirement of the user side in S1;
s3: the method comprises the following steps that a thermal regulation center calculates the economy of units under jurisdiction in real time and analyzes the heat supply economy of each unit;
s4: distributing the heat supply load of each unit according to the heat supply economical ranking of each unit on the premise of ensuring the total safety;
s5: the central heating instruction of the heat regulation is distributed to each heating unit through a modbus communication protocol, and the heating units respond to the central heating instruction in time;
s6: each heat supply unit feeds back the heat regulation center regulation effect, and the heat regulation center monitors the balance between the flow sum of each heat supply unit and the flow demand of the side stream of the user.
By adopting the technical scheme, the heat supply demand of the user side can be timely and automatically responded, the heat supply load capacity of each pressure grade of each unit heat supply unit can be safely and economically distributed, the phenomenon that the heat supply parameters of the user side are too large and fluctuation is caused to influence the safety of the user can be avoided, the safety and the economy of each unit heat supply unit can be comprehensively considered, and the purposes of reducing the number of people and improving the efficiency can be achieved.
The invention is further configured to: in the S1, the heat demand calculation method of a user at a certain heat supply pressure level is that the steam pressure P1 of a heat supply main pipe at the user side and the heat supply steam flow Q1 are uploaded to a heat regulation center, the heat regulation center detects the changes of the steam pressure P1 of the heat supply main pipe and the heat supply steam flow Q1 in real time, and the demand condition of the user side on the heat supply steam is calculated through a functional relation.
The invention is further configured to: the function relation that the change of the steam pressure P1 of the user side heat supply main pipe and the heat supply steam flow Q1 reflect the demand of the user side heat supply steam is f (x) = (K)P*ERROR)+KiIntegral ERROR dt + feedforward input, where f (x) is the user side heat supply demand, variable ERROR is the amount of change in steam pressure P1, feedforward input is the amount of change in steam flow Q1, KPAnd KiAnd setting along with the system.
By adopting the technical scheme, the functional relation of the demand change of the user side heat supply flow Q1 is established, the heat regulation center can be conveniently and automatically adjusted to supply heat load after the heat regulation center is led in, and when the heat supply demand of the user side changes, the heat supply load of the corresponding heat supply unit can be timely increased and decreased through the heat regulation center.
The invention is further configured to: the method for calculating the economical efficiency of the governed units in real time by the thermal regulation center and analyzing the heat supply economical efficiency of each unit comprises the following steps: in S3, the method for real-time calculation of the economic efficiency of the governed units by the central heat transfer unit and analysis of the heat supply economic efficiency of each unit comprises the following steps: respectively performingThe boiler efficiency and steam turbine generator efficiency of each unit are calculated. EtaBoilerReal-time boiler evaporation rate (steam enthalpy-feed water enthalpy)/(fuel amount + fuel low heating value) = 100%; etaSteam engine=3600 actual power/[ steam flow rate (enthalpy drop of high pressure cylinder + enthalpy drop of intermediate pressure cylinder + enthalpy drop of low pressure cylinder)]；ηGeneratorTaking 0.995, and the total efficiency of each unit is etaBoiler*ηSteam engine*ηGeneratorAnd comparing the efficiency of each unit to obtain the ranking of heat supply economy.
The invention is further configured to: when the heat supply flow relation between the user side heat supply flow Q1 and the heat supply unit under the same pressure level is as follows: q1= K1*q1+ K2*q2+ ……+Ki*qiWherein i is the number of heat supply units, which is determined by an 'N-1 principle' for ensuring heat supply safety scheduling, K is a flow distribution coefficient of the heat supply economy of the units, and the principle is that the K coefficient of the units with good economy is high, the K coefficient of the units with poor economy is low, and the relation is as follows: (K)1+ K2+ ……+Ki）/i=1
By adopting the technical scheme, the heat supply unit is guaranteed to be dispatched according to the economical efficiency of the heat supply unit under the premise of safety and controllability, and safe and economical dispatching is realized.
The invention is further configured to: the heat regulation center monitors the balance of the steam flow Q1 of the heat supply user and the heat supply W of each unit heat supply unit in real time, and the calculation relationship is as follows: steam flow Q1= W for heating user1+W2……+WiAnd i is the number of the heat supply units.
By adopting the technical scheme, when the heat supply unit is internally disturbed or a certain heat supply unit in the system fails and is in power failure, the heat regulation center can quickly distribute the power failure flow to the rest heat supply units through the balance relation, so that the total balance is ensured, the excessive fluctuation of heat supply parameters at the user side is avoided, and the safety of the heat supply system is ensured.
The invention is further configured to: the safety total amount stated in S4 is the total amount of heat supply that all the heat supply unit units need to provide under the "N-1" principle of guaranteeing the heat supply safety scheduling.
By adopting the technical scheme, the system can be kept to continuously and stably operate under the principle of 'N-1'.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the system has the capability of timely and automatically responding to the heat supply demand of a user side and reasonably distributing the heat supply load of each pressure grade of each unit heat supply unit, thereby avoiding the influence on the safety of the user due to the overlarge fluctuation of the heat supply parameters of the user side and achieving the purposes of reducing the number of people and improving the efficiency;
2. the economy of the heat supply unit is calculated in real time, the heat regulation center conducts economic dispatching according to the economy ranking of the heat supply unit, the maximization of heat supply benefits is guaranteed, and the effects of energy conservation and emission reduction are achieved.
Drawings
Fig. 1 is a flow chart of a method for multi-unit heating unit collaborative heating safe and economic dispatching.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
a method for safe and economic dispatching of heat supply based on cooperation of multiple units of heat supply units is characterized in that the units can be multiple units or a single unit, each unit can convey steam with different pressure grades, and the total amount of the steam with the same pressure grade in different units can be the sum of all the steam with the same pressure grade. And the same unit may contain a plurality of heat supply units.
As shown in fig. 1, the specific steps are as follows:
s1: the method for calculating the heat supply demand of the user at a certain heat supply pressure level comprises the steps of uploading the steam pressure P1 of the heat supply main pipe and the heat supply steam flow Q1 of the user side which are several kilometers away to a heat regulation center by utilizing PROFIBUS, detecting the changes of the steam pressure P1 of the heat supply main pipe and the heat supply steam flow Q1 of the heat regulation center in real time, and calculating the demand condition of the user side on the heat supply steam through a functional relation.
S2: the functional relationship that the changes of the steam pressure P1 of the heat supply main pipe at the user side and the heat supply steam flow Q1 reflect the demand of the heat supply steam at the user side is f (x) = (KP × ERROR) + Ki × ERROR dt + feedforward input, wherein f (x) is the heat supply demand at the user side, the variable ERROR is the real-time variation of the steam pressure P1, and the feedforward input is the real-time variation of the steam flow Q1. KP and Ki are adjusted along with the system.
According to the system, KPThe value is generally between 2 and 5; kiGenerally, the value is between 30 and 50.
S3: the method for calculating the economical efficiency of the governed units in real time by the thermal regulation center and analyzing the heat supply economical efficiency of each unit comprises the following steps: and respectively calculating the boiler efficiency and the steam turbine generator efficiency of each unit in real time. EtaBoilerReal-time boiler evaporation rate (steam enthalpy-feed water enthalpy)/(fuel amount + fuel low heating value) = 100%; etaSteam engine=3600 actual power/[ steam flow rate (enthalpy drop of high pressure cylinder + enthalpy drop of intermediate pressure cylinder + enthalpy drop of low pressure cylinder)]；ηGeneratorTake 0.995. The total efficiency of each unit is etaBoiler*ηSteam engine*ηGeneratorAnd comparing the efficiency of each unit to obtain a ranking of heat supply economy, wherein the higher the efficiency of the unit is, the higher the ranking is.
Real-time evaporation capacity and fuel quantity data of a boiler of the heat supply unit are acquired; calculating the enthalpy value of the steam through the superheated steam pressure and the temperature of the heat supply unit; calculating the enthalpy value of the feed water through the feed water pressure and the temperature; the low calorific value of the fuel is input by operators through sampling and analyzing the coal added with the bunker.
The actual power and steam flow data of the heat supply unit are acquired; the enthalpy drop of each high, medium and low pressure cylinder is calculated by the steam pressure temperature.
The total efficiency of each unit is etaBoiler*ηSteam engine*ηGeneratorAnd comparing the efficiency of each unit to obtain the ranking of heat supply economy.
S4: when the heat supply flow relation between the user side heat supply flow Q1 and the heat supply unit under the same pressure level is as follows: q1= K1*q1+ K2*q2+ ……+Ki*qiWherein i is the number of heating units determined by the "N-1 principle" for ensuring safe heat supply schedulingThe number of units is determined by: when the heat supply unit with the largest flow is tripped or the carried flow is lost, the heat supply allowance of the rest heat supply units can compensate the lost flow, namely the N-1 principle of heat supply safety scheduling is ensured. .
And K is a flow distribution coefficient according to the heat supply economy of the unit. The principle is that the unit K coefficient with good economical efficiency is high, and the unit K coefficient with poor economical efficiency is low. The relationship is as follows: (K)1+ K2+ ……+Ki）/i=1
S5: the central heating instruction of the heat regulation is distributed to each heating unit in remote control through a modbus communication protocol, and the heating units respond to the central heating instruction of the heat regulation in time;
s6: the heat regulation center monitors the balance of the steam flow Q1 of the heat supply user and the heat supply W of each unit heat supply unit in real time, and the calculation relationship is as follows: steam flow Q1= W for heating user1+W2……+WiAnd i is the number of the heat supply units, and is determined by an 'N-1 principle' for ensuring the heat supply safety scheduling. When a certain heat supply unit in the system fails and is in power outage, the heat regulation center can quickly distribute the power outage flow to the rest heat supply units through the balance relation, so that the total balance is ensured, and the overlarge fluctuation of heat supply parameters at the user side is avoided.
E.g. W in the systemiAfter loss, the size of the lost part is expressed in KiThe coefficients being distributed to other groups, W1、W2Equal to corresponding increase, ensure Q1 and W1+W2… … are also equal.
The method firstly establishes a function relation of demand change of user side heat supply flow Q1, user side heat supply main pipe steam pressure P1 and heat supply steam flow Q1 which are several kilometers away are uploaded to a heat regulation center by using PROFIBUS, when the heat supply demand of the user side changes, the user side heat supply main pipe steam pressure P1 immediately changes, the heat regulation center timely captures the pressure change, the heat supply demand of a user is calculated through the heat regulation center, and the heat supply load of a corresponding heat supply unit is timely instructed to increase and decrease. The design can effectively eliminate the influence of external disturbance of the user side and ensure the stability of heat supply parameters.
If the demand of the heat supply flow at the user side is increased, the steam pressure P1 of the heat supply main pipe is reduced, and the heat adjustment center can increase the heat supply load of the heat supply unit in time to match. And vice versa.
In the process, the concept of economic scheduling is introduced. The unit efficiency of each heat supply unit is calculated in real time through EO software built in a heat transfer center DCS, the economical ranking of each pressure grade heat supply of each heat supply unit is analyzed, and on the basis that the total heat supply amount is not changed, the heat supply units with high heat supply efficiency supply more heat, so that the purpose of design is to supply heat without safety, and also to give consideration to economy, and energy conservation and emission reduction are better realized.
The heat transfer center monitors the balance of the steam flow Q1 of a heat supply user and the heat supply W of each unit heat supply unit in real time after flow distribution, and after a certain heat supply unit in the system breaks down and is supplied, the heat transfer center can quickly distribute the flow of the supply to the rest heat supply units through the balance relation, so that the total balance is ensured, and the overlarge fluctuation of heat supply parameters at the user side is avoided. After the design, when the heat supply unit is internally disturbed or a certain heat supply unit in the system fails and is supplied, the heat regulation center can quickly distribute the flow of the supply failure to the rest heat supply units through the balance relation, so that the total balance is ensured, the overlarge fluctuation of heat supply parameters at the user side is avoided, and the safety of the heat supply system is ensured.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. A safe and economic dispatching method based on multi-unit heat supply unit collaborative heat supply is characterized by comprising the following steps: the method comprises the following specific steps:
s1: calculating the heat supply demand of a user with a certain heat supply pressure level;
s2: the heat regulation center calculates the total heat supply amount required by all the heat supply unit sets according to the heat supply requirement of the user side in S1;
s3: the method comprises the following steps that a thermal regulation center calculates the economy of units under jurisdiction in real time and analyzes the heat supply economy of each unit;
s4: distributing the heat supply load of each unit according to the heat supply economical ranking of each unit on the premise of ensuring the total safety;
s5: the central heating instruction of the heat regulation is distributed to each heating unit through a modbus communication protocol, and the heating units respond to the central heating instruction in time;
s6: each heat supply unit feeds back the heat regulation center regulation effect, and the heat regulation center monitors the balance between the flow sum of each heat supply unit and the flow demand of the side stream of the user;
wherein, the step S3 specifically includes: respectively calculating the boiler efficiency, the steam engine efficiency and the generator efficiency of each unit in real time, wherein eta boiler = boiler real-time evaporation capacity (steam enthalpy-feed water enthalpy)/(fuel quantity) fuel low-level heating value) 100%; η steam turbine =3600 actual power/[ steam flow rate (high pressure cylinder enthalpy drop + intermediate pressure cylinder enthalpy drop + low pressure cylinder enthalpy drop) ]; and the eta generators are 0.995, the total efficiency of each unit is eta boiler eta turbine eta generators, and the efficiency of each unit is compared to obtain the heat supply economical ranking.
2. The multi-unit heat supply unit collaborative heat supply safety and economy scheduling method according to claim 1, wherein the method comprises the following steps: in the S1, the heat demand calculation method of a user at a certain heat supply pressure level is that the steam pressure P1 of a heat supply main pipe at the user side and the heat supply steam flow Q1 are uploaded to a heat regulation center, the heat regulation center detects the changes of the steam pressure P1 of the heat supply main pipe and the heat supply steam flow Q1 in real time, and the demand condition of the user side on the heat supply steam is calculated through a functional relation.
3. The multi-unit heat supply unit collaborative heat supply safety and economy scheduling method as claimed in claim 2, wherein: the functional relation that the change of the steam pressure P1 of the user side heat supply main pipe and the heat supply steam flow Q1 reflect the total amount of the demand of the user side heat supply steam is f (x) = (K)P*ERROR)+KiIntegral ERROR dt + feedforward input, wherein f (x) is total heat supply demand of user side, and variable ERROR is heat supply main pipe of user sideReal-time variation of steam pressure P1, feedforward input as real-time variation of heating steam flow Q1, and proportionality coefficient KPAnd integral coefficient KiAnd adjusting according to the inertia of the heating system.
4. The multi-unit heat supply unit collaborative heat supply safety and economy scheduling method according to claim 1, wherein the method comprises the following steps: when the heat supply flow relation between the user side heat supply flow Q1 and the heat supply unit under the same pressure level is as follows: q1= K1*q1+ K2*q2+ ……+Ki*qiWherein K is the flow distribution coefficient according to the heat supply economy of the unit, Ki*qiNamely, the heat supply instruction distributed to the heat supply units of each unit; wherein i is the number of the heat supply units, and is determined by an 'N-1 principle' for ensuring the heat supply safety scheduling.
5. The method for multi-unit heat supply unit collaborative heat supply safe and economic dispatching as claimed in claim 4, wherein: the unit K coefficient with good economical efficiency is high, and the unit K coefficient with poor economical efficiency is low, and the relationship is as follows: (K)1+ K2+ ……+Ki）/i=1。
6. The method for multi-unit heat supply unit collaborative heat supply safe and economic dispatching as claimed in claim 5, wherein: the heat regulation center monitors the balance of the steam flow Q1 of the heat supply user and the heat supply W of each unit heat supply unit in real time, and the calculation relationship is as follows: steam flow Q1= W for heating user1+W2……+WiAnd i is the number of the heat supply units.
7. The multi-unit heat supply unit collaborative heat supply safety and economy scheduling method according to claim 1, wherein the method comprises the following steps: the safety total amount stated in S4 is the total amount of heat supply that all the heat supply unit units need to provide under the "N-1" principle of guaranteeing the heat supply safety scheduling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309656.4A CN110197321B (en) | 2019-04-17 | 2019-04-17 | Multi-unit heat supply unit cooperation based safe and economic heat supply scheduling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910309656.4A CN110197321B (en) | 2019-04-17 | 2019-04-17 | Multi-unit heat supply unit cooperation based safe and economic heat supply scheduling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110197321A CN110197321A (en) | 2019-09-03 |
| CN110197321B true CN110197321B (en) | 2021-06-22 |
Family
ID=67751997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910309656.4A Active CN110197321B (en) | 2019-04-17 | 2019-04-17 | Multi-unit heat supply unit cooperation based safe and economic heat supply scheduling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110197321B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112053027B (en) * | 2020-07-17 | 2024-05-24 | 国网山东省电力公司电力科学研究院 | Online verification method and system for minimum operation mode of thermal power plant |
| CN113266868B (en) * | 2021-04-15 | 2022-11-29 | 国电汉川发电有限公司 | Multi-unit cooperative heat supply heat load intelligent distribution control system and method |
| CN113685971A (en) * | 2021-08-02 | 2021-11-23 | 吉林建筑大学 | Constant-temperature heat supply automatic control circulation dynamic balance control system and method and data processing terminal |
| CN114117696B (en) * | 2021-11-12 | 2024-05-10 | 南京科远智慧科技集团股份有限公司 | Real-time heat supply scheduling method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097828A (en) * | 2010-12-30 | 2011-06-15 | 中国电力科学研究院 | Wind power optimal scheduling method based on power forecast |
| CN102622269A (en) * | 2012-03-15 | 2012-08-01 | 广西大学 | Java agent development (JADE)-based intelligent power grid power generation dispatching multi-Agent system |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE31218T1 (en) * | 1982-01-23 | 1987-12-15 | Karl August Jacob | HEAT EXCHANGER FOR THE OPERATION OF A SUPERPHASE STEAM BOILER SYSTEM. |
| CN101696795B (en) * | 2009-09-30 | 2011-06-01 | 河南电力试验研究院 | Analytical processing method of condensation load heat consumption of cogeneration set |
| CN102622530B (en) * | 2012-04-24 | 2015-07-01 | 华电能源股份有限公司哈尔滨第三发电厂 | Improved genetic algorithm-based method for distributing and optimizing thermal and electrical load of steam extraction and heating unit |
| CN102930351B (en) * | 2012-10-26 | 2016-01-20 | 安徽省电力公司 | A kind of synthesis energy saving Optimized Operation daily planning generation method |
| CN104179575B (en) * | 2014-08-07 | 2016-03-30 | 国家电网公司 | Combined cycle gas-steam turbine unit is Optimal Scheduling and method a few days ago |
| CN105098979A (en) * | 2014-12-19 | 2015-11-25 | 国网山东泗水县供电公司 | Automatic electric power scheduling system and method |
| CN105201565B (en) * | 2015-09-30 | 2016-08-17 | 西安西热电站信息技术有限公司 | A kind of multicomputer steam-turbine real-time distribution method of flow based on piping-main scheme |
| CN105869075A (en) * | 2016-04-19 | 2016-08-17 | 东南大学 | Economic optimization scheduling method for cold, heat and electricity combined supply type miniature energy grid |
| CN106384162B (en) * | 2016-09-06 | 2019-08-23 | 西安交通大学 | Consider electric system electric energy-spare joint optimal operation method of zonal reserve and N-1 verification |
| CN106849188B (en) * | 2017-01-23 | 2020-03-06 | 中国电力科学研究院 | Combined heat and power optimization method and system for promoting wind power consumption |
| CN107451698A (en) * | 2017-08-10 | 2017-12-08 | 国家电网公司 | A kind of Optimized Operation device and dispatching method applied to multimode heat supply power plant |
| CN108009743A (en) * | 2017-12-15 | 2018-05-08 | 国网山东省电力公司莱芜供电公司 | The system combined economic load dispatching method of electric-thermal based on heat supply network heat accumulation characteristic |
| CN108537409B (en) * | 2018-03-15 | 2021-08-31 | 广东电网有限责任公司电网规划研究中心 | Industrial park power distribution network collaborative planning method considering multi-energy coupling characteristics |
-
2019
- 2019-04-17 CN CN201910309656.4A patent/CN110197321B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102097828A (en) * | 2010-12-30 | 2011-06-15 | 中国电力科学研究院 | Wind power optimal scheduling method based on power forecast |
| CN102622269A (en) * | 2012-03-15 | 2012-08-01 | 广西大学 | Java agent development (JADE)-based intelligent power grid power generation dispatching multi-Agent system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110197321A (en) | 2019-09-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110197321B (en) | Multi-unit heat supply unit cooperation based safe and economic heat supply scheduling method | |
| CN104205547B (en) | Method for controlling the facility that will be fed current in power supply network | |
| CN106505613B (en) | A kind of wind power controller | |
| CN202032548U (en) | Automatic load distribution control system for boiler using main pipe system operation mode | |
| CN108574304B (en) | Plant-level AGC load optimization logic control method and system | |
| CN102593860A (en) | Automatic generation control and automatic voltage control integrated substation system of power plant | |
| CN102064562A (en) | Active power optimization method for combined transmission of wind power and thermal power | |
| CN101373383B (en) | Load economical allocation control method based on flow balance | |
| CN112821426A (en) | System and method for optimizing load distribution and AGC quick response of thermal power plant | |
| CN201449552U (en) | Power plant agc control system | |
| US10012380B2 (en) | Control system for allocating steam flow through elements | |
| CN106839082B (en) | Wind power heating regulator control system and regulation method | |
| CN102222914A (en) | Electrical telemechanical host with plant-level automatic power generation function | |
| CN101593979A (en) | A kind of thermal power plant level of factory load optimized distribution method and device | |
| CN103138293A (en) | Optimal distribution method and system for heat-engine plant plant-level loads | |
| CN102842916A (en) | Information acquisition method, scheduling method and system for grid connection of multiple wind farms | |
| CN109268685A (en) | Transmission & distribution net and its control method | |
| CN203718923U (en) | Energy-saving coordinated control system | |
| CN109301879A (en) | A kind of power station IGCC automatic electricity generation control system and control method | |
| CN115241891A (en) | Switching control method for multiple groups of switching reactive power compensation devices of 110kV transformer substation | |
| CN113137650B (en) | Steam heat network system regulation and control method combined with distributed power generation | |
| CN111878888B (en) | Control and regulation system and method under plant-level thermoelectric unit combined heat supply mode | |
| CN205051354U (en) | Ventilation air methane power generation system convenient to adjust power factor | |
| CN202503291U (en) | Intelligent automatic voltage control system | |
| CN106374535A (en) | Control method for cogeneration power generation quantity of cogeneration unit |
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 |