CN113725871A - 一种新型的风光储协同调频优化控制方法 - Google Patents
一种新型的风光储协同调频优化控制方法 Download PDFInfo
- Publication number
- CN113725871A CN113725871A CN202110944053.9A CN202110944053A CN113725871A CN 113725871 A CN113725871 A CN 113725871A CN 202110944053 A CN202110944053 A CN 202110944053A CN 113725871 A CN113725871 A CN 113725871A
- Authority
- CN
- China
- Prior art keywords
- frequency modulation
- frequency
- energy storage
- load
- electric energy
- 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
- 238000005457 optimization Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004146 energy storage Methods 0.000 claims abstract description 83
- 230000001174 ascending effect Effects 0.000 claims abstract description 5
- 230000002195 synergetic effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000004044 response Effects 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 5
- 230000009467 reduction Effects 0.000 description 4
- 230000000295 complement effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007261 regionalization Effects 0.000 description 2
- 230000004083 survival effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
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
- H02J3/24—Arrangements for preventing or reducing oscillations of power in networks
- H02J3/241—The oscillation concerning frequency
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/18—Complex mathematical operations for evaluating statistical data, e.g. average values, frequency distributions, probability functions, regression 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
- G06Q10/04—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
- 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
-
- 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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
- H02J3/466—Scheduling the operation of the generators, e.g. connecting or disconnecting generators to meet a given demand
-
- 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
- H02J2203/10—Power transmission or distribution systems management focussing at grid-level, e.g. load flow analysis, node profile computation, meshed network optimisation, active network management or spinning reserve management
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/28—The renewable source being wind energy
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- 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
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- General Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Economics (AREA)
- Theoretical Computer Science (AREA)
- Human Resources & Organizations (AREA)
- Data Mining & Analysis (AREA)
- Strategic Management (AREA)
- Computational Mathematics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Operations Research (AREA)
- General Business, Economics & Management (AREA)
- Pure & Applied Mathematics (AREA)
- Tourism & Hospitality (AREA)
- Mathematical Physics (AREA)
- Marketing (AREA)
- Health & Medical Sciences (AREA)
- Algebra (AREA)
- Primary Health Care (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Software Systems (AREA)
- Bioinformatics & Computational Biology (AREA)
- Databases & Information Systems (AREA)
- Evolutionary Biology (AREA)
- Probability & Statistics with Applications (AREA)
- Development Economics (AREA)
- Game Theory and Decision Science (AREA)
- Entrepreneurship & Innovation (AREA)
- Quality & Reliability (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
本发明涉及一种新型的风光储协同调频优化控制方法,包括:基于小型风力发电机组、屋顶光伏、电储能装置构建小型微网***,将小型微网***通过硬接线方式接入DCS***的拓展模拟量IO,用于通过风、光、电储能协同作用辅助燃煤机组调频优化控制;基于能源管理***,根据获取的实时数据信号,采用概率预测算法评估发电机组升/降负荷空间容量和速率并预测电网频率,综合评判,对于概率预测调频时间小于20s的调频补偿,优选频差补偿,对于小于60s的调频补偿,优选区间电储能补偿。本发明可以保证燃煤机组一次调频的最佳响应,同时降低对机组的一次调频硬件需求,从绿色能源角度进行电量补偿,充分利用绿电,有效降低对化石能源的依赖。
Description
技术领域
本发明涉及燃煤机组新型调频应用领域,尤其涉及一种新型的风光储协同调频优化控制方法。
背景技术
一次调频是发电机组保证电网频率稳定在频率允许偏差范围内的重要技术保障,而电网更依赖传统燃煤机组进行电网频率的调节,目前典型一次调频优化的技术手段更多地依赖于原始的汽轮机转动惯量,通过DEH***按照一定约束条件快速补偿,然后通过协调***再同步进行负荷调整,实现快速和稳定的调节,但是受制于机组的固有特性,一次调频调节品质无法满足调整需求,经常受到电网考核,对现阶段的燃煤企业的生存经营无疑是雪上加霜。
综上所述,典型的一次调频优化技术手段无法从根本上真正实现负荷调整量的准确补偿。
发明内容
本发明的目的是提供一种新型的风光储协同调频优化控制方法,采用高效快捷的新能源技术手段辅助燃煤机组实施精准调频控制,降低机组在传统一次调频下的往复扰动和压力波动,有效提升一次调频响应水平,同时应用风-光等自然能源进行储能在实现碳排放上。
本发明提供了一种新型的风光储协同调频优化控制方法,包括如下步骤:
步骤1,基于小型风力发电机组、屋顶光伏、电储能装置构建小型微网***,将小型微网***通过硬接线方式接入DCS***的拓展模拟量IO,用于通过风、光、电储能协同作用辅助燃煤机组调频优化控制;
步骤2,基于能源管理***,根据获取的实时数据信号,采用概率预测算法评估发电机组升/降负荷空间容量和速率并预测电网频率,综合评判,对于概率预测调频时间小于20s的调频补偿,优选频差补偿,对于小于60s的调频补偿,优选区间电储能补偿。
进一步地,所述步骤2包括:
取AGC负荷指令Ls、实际功率Lr、电网频率f,采样周期设置为1s,提取PT信号获取发电机出口实际频率,即电网频率f,并对该信号进行死区判别,确定调频的正负方向,若电网频率f>50+δ,所述能源管理***触发充电机制,若电网频率f<50-δ,触发放电机制。
进一步地,若电网频率f>50+δ,机组实发负荷Lr低于设定值Ls,电网频率f大于调频动作死区δ,机组开始降负荷,基于能源管理***内置算法模块评判电网频率f走势:
1)调整时间在20s以内,优选发电机组向电储能充电,判断Δ=|Lr-Ls|≤δ,δ取某一限值,该限值由***自动运算得出,DCS负荷指令保持不变,此时机组DCS***调频功能被切除,若电储能装置不具备充电条件,转由DCS***调频方式降负荷;
2)调整时间在20s至60s之间,以频差调整为主,实时计算积分电量,待10s时,启动电储能装置充电模式5s,期间负荷指令闭锁,而后继续由DCS***调整。
进一步地,若电网频率f>50+δ,机组实发负荷Lr高于设定值Ls,电网频率f大于死区δ,机组开始快速升负荷;能源管理***评判电网频率f走势:
1)调整时间在20s以内,触发电储能装置充电机制,判断Δ=|Lr-Ls|≤δ,δ取某一限值,该限值由***自动运算得出,此时机组DCS***调频功能被切除,若电储能装置不具备充电条件,转由DCS***调频方式降负荷,增大调频增益,叠加压力设定值偏置;
2)20s至60s之间,以频差调整为主,电储能装置充电为辅。
进一步地,若电网频率f<50-δ,机组实发负荷Lr大于设定值Ls,电网频率f小于死区δ,机组开始升负荷;能源管理***评判电网频率f走势:
1)20s以内,由DCS***调频方式升负荷,增大调频增益;
2)20s至60s之间,计算实时负荷偏差,在10s时,启动切换风-光联合储能开关向电储能装置充电,由电储能装置快速定值补偿负荷偏差量5s,而后根据DCS叠加补偿后负荷指令与预期目标指令偏差β由电储能装置进行定值补偿。
进一步地,若电网频率f<50-δ,机组实发负荷Lr小于设定值Ls,电网频率f小于死区δ,机组快速升负荷;能源管理***评判电网频率f走势:
1)20s以内,触发电储能装置放电机制,此时机组DCS***调频功能被切除,切换风-光联合储能开关向电储能装置充电,若电储能装置不具备放电条件,转由DCS***调频方式升负荷,增大调频增益,叠加压力设定值偏置;
2)20s至60s之间,以频差调整为主,电储能装置充电为辅。
进一步地,电网频率f越过死区范围,一次调频动作结束,而后根据电网频率f的变化重复整个流程。
借由上述方案,通过新型的风光储协同调频优化控制方法,通过厂区内搭建小型风机、屋顶和车棚光伏、融合电储能实现汽轮发电机组的调频辅助补偿,由控制终端接入发电机组实际功率、电网频率等实时数据信号,采用概率预测算法评估发电机组升/降负荷空间容量和速率并预测电网频率,综合评判,对于概率预测调频时间小于20s的调频补偿,优选“频差补偿”,对于小于60s的调频补偿,优选“区间电储能补偿”,最终实现机组一次调频的瞬时可靠动作,区间稳定补偿,保证电网频率稳定,同时最大程度降低一次调频被考核情况,基于能量管理***,实现风-光互补对储能装置的可控充电,最大程度降低储能装置对机组电能的依赖度,优选绿色能源储能,降低储能***的快速充放电机制,平滑稳定输出,有效提升储能装置的利用小时数。本发明提出了一种负荷区域化补偿的灵活性调整策略,可以保证燃煤机组一次调频的最佳响应,同时降低对机组的一次调频硬件需求,从绿色能源角度进行电量补偿,充分利用绿电,有效降低对化石能源的依赖,对实现碳减排有重要意义有效降低对化石能源的依赖,对实现碳减排有重要意义。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,并可依照说明书的内容予以实施,以下以本发明的较佳实施例并配合附图详细说明如后。
附图说明
图1是本发明新型的风光储协同调频优化控制方法一实施例的流程图。
具体实施方式
下面结合附图和实施例,对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明,但不用来限制本发明的范围。
本实施例提供了一种新型的风光储协同调频优化控制方法,包括如下步骤:
步骤1,基于小型风力发电机组、屋顶光伏、电储能装置构建小型微网***,将小型微网***通过硬接线方式接入DCS***的拓展模拟量IO,用于通过风、光、电储能协同作用辅助燃煤机组调频优化控制;
步骤2,基于能源管理***,根据获取的实时数据信号,采用概率预测算法评估发电机组升/降负荷空间容量和速率并预测电网频率,综合评判,对于概率预测调频时间小于20s的调频补偿,优选频差补偿,对于小于60s的调频补偿,优选区间电储能补偿。
参图1所示,步骤2包括:
取AGC负荷指令Ls、实际功率Lr、电网频率f,采样周期设置为1s,提取PT信号获取发电机出口实际频率,即电网频率f,并对该信号进行死区判别,确定调频的正负方向,若电网频率f>50+δ,所述能源管理***触发充电机制,若电网频率f<50-δ,触发放电机制。
若电网频率f>50+δ,机组实发负荷Lr低于设定值Ls,电网频率f大于调频动作死区δ,机组开始降负荷,基于能源管理***内置算法模块评判电网频率f走势:
1)调整时间在20s以内,优选发电机组向电储能充电,判断Δ=|Lr-Ls|≤δ,δ取某一限值,该限值由***自动运算得出,DCS负荷指令保持不变,此时机组DCS***调频功能被切除,若电储能装置不具备充电条件,转由DCS***调频方式降负荷;
2)调整时间在20s至60s之间,以传统频差调整为主,实时计算积分电量,待10s时,启动电储能装置充电模式5s,期间负荷指令闭锁,而后继续由DCS***调整。
若电网频率f>50+δ,机组实发负荷Lr高于设定值Ls,电网频率f大于死区δ,机组开始快速升负荷;能源管理***评判电网频率f走势:
1)调整时间在20s以内,触发电储能装置充电机制,判断Δ=|Lr-Ls|≤δ,δ取某一限值,该限值由***自动运算得出,此时机组原DCS***调频功能被切除,若电储能装置不具备充电条件,转由DCS***传统调频方式降负荷,增大调频增益,叠加压力设定值偏置(负值);
2)20s至60s之间,以频差调整为主(按照定值补偿),电储能装置充电为辅,(按照斜坡补偿)。
若电网频率f<50-δ,机组实发负荷Lr大于设定值Ls,电网频率f小于死区δ,机组开始升负荷;能源管理***评判电网频率f走势:
1)20s以内,由DCS***传统调频方式升负荷(固定频差补偿),增大调频增益;
2)20s至60s之间,计算实时负荷偏差,在10s时,启动切换风-光联合储能开关向电储能装置充电,由电储能装置快速定值补偿负荷偏差量5s,而后根据DCS叠加补偿后负荷指令与预期目标指令偏差β由电储能装置进行定值补偿(方波)。
若电网频率f<50-δ,机组实发负荷Lr小于设定值Ls,电网频率f小于死区δ,机组快速升负荷;能源管理***评判电网频率f走势:
1)20s以内,触发电储能装置放电机制,此时机组DCS***调频功能被切除,切换风-光联合储能开关向电储能装置充电,若电储能装置不具备放电条件,转由DCS***传统调频方式升负荷(固定频差补偿),增大调频增益,叠加压力设定值偏置(正值);
2)20s至60s之间,以频差调整为主(按照定值补偿),电储能装置充电为辅(按照斜坡补偿)。
电网频率f越过死区范围,一次调频动作结束,而后根据电网频率f的变化重复整个流程。
该新型的风光储协同调频优化控制方法,通过厂区内搭建小型风机、屋顶和车棚光伏、融合电储能实现汽轮发电机组的调频辅助补偿,由控制终端接入发电机组实际功率、电网频率等实时数据信号,采用概率预测算法评估发电机组升/降负荷空间容量和速率并预测电网频率,综合评判,对于概率预测调频时间小于20s的调频补偿,优选“频差补偿”,对于小于60s的调频补偿,优选“区间电储能补偿”,最终实现机组一次调频的瞬时可靠动作,区间稳定补偿,保证电网频率稳定,同时最大程度降低一次调频被考核情况,基于能量管理***,实现风-光互补对储能装置的可控充电,最大程度降低储能装置对机组电能的依赖度,优选绿色能源储能,降低储能***的快速充放电机制,平滑稳定输出,有效提升储能装置的利用小时数。本发明提出了一种负荷区域化补偿的灵活性调整策略,可以保证燃煤机组一次调频的最佳响应,同时降低对机组的一次调频硬件需求,从绿色能源角度进行电量补偿,充分利用绿电,有效降低对化石能源的依赖,对实现碳减排有重要意义有效降低对化石能源的依赖,对实现碳减排有重要意义。
以上所述仅是本发明的优选实施方式,并不用于限制本发明,应当指出,对于本技术领域的普通技术人员来说,在不脱离本发明技术原理的前提下,还可以做出若干改进和变型,这些改进和变型也应视为本发明的保护范围。
Claims (7)
1.一种新型的风光储协同调频优化控制方法,其特征在于,包括如下步骤:
步骤1,基于小型风力发电机组、屋顶光伏、电储能装置构建小型微网***,将小型微网***通过硬接线方式接入DCS***的拓展模拟量IO,用于通过风、光、电储能协同作用辅助燃煤机组调频优化控制;
步骤2,基于能源管理***,根据获取的实时数据信号,采用概率预测算法评估发电机组升/降负荷空间容量和速率并预测电网频率,综合评判,对于概率预测调频时间小于20s的调频补偿,优选频差补偿,对于小于60s的调频补偿,优选区间电储能补偿。
2.根据权利要求1所述的风光储协同调频优化控制方法,其特征在于,所述步骤2包括:
取AGC负荷指令Ls、实际功率Lr、电网频率f,采样周期设置为1s,提取PT信号获取发电机出口实际频率,即电网频率f,并对该信号进行死区判别,确定调频的正负方向,若电网频率f>50+δ,所述能源管理***触发充电机制,若电网频率f<50-δ,触发放电机制。
3.根据权利要求2所述的一种新型的风光储协同调频优化控制方法,其特征在于,若电网频率f>50+δ,机组实发负荷Lr低于设定值Ls,电网频率f大于调频动作死区δ,机组开始降负荷,基于能源管理***内置算法模块评判电网频率f走势:
1)调整时间在20s以内,优选发电机组向电储能充电,判断Δ=|Lr-Ls|≤δ,δ取某一限值,该限值由***自动运算得出,DCS负荷指令保持不变,此时机组DCS***调频功能被切除,若电储能装置不具备充电条件,转由DCS***调频方式降负荷;
2)调整时间在20s至60s之间,以频差调整为主,实时计算积分电量,待10s时,启动电储能装置充电模式5s,期间负荷指令闭锁,而后继续由DCS***调整。
4.根据权利要求2所述的一种新型的风光储协同调频优化控制方法,其特征在于,若电网频率f>50+δ,机组实发负荷Lr高于设定值Ls,电网频率f大于死区δ,机组开始快速升负荷;能源管理***评判电网频率f走势:
1)调整时间在20s以内,触发电储能装置充电机制,判断Δ=|Lr-Ls|≤δ,δ取某一限值,该限值由***自动运算得出,此时机组DCS***调频功能被切除,若电储能装置不具备充电条件,转由DCS***调频方式降负荷,增大调频增益,叠加压力设定值偏置;
2)20s至60s之间,以频差调整为主,电储能装置充电为辅。
5.根据权利要求2所述的一种新型的风光储协同调频优化控制方法,其特征在于,若电网频率f<50-δ,机组实发负荷Lr大于设定值Ls,电网频率f小于死区δ,机组开始升负荷;能源管理***评判电网频率f走势:
1)20s以内,由DCS***调频方式升负荷,增大调频增益;
2)20s至60s之间,计算实时负荷偏差,在10s时,启动切换风-光联合储能开关向电储能装置充电,由电储能装置快速定值补偿负荷偏差量5s,而后根据DCS叠加补偿后负荷指令与预期目标指令偏差β由电储能装置进行定值补偿。
6.根据权利要求2所述的一种新型的风光储协同调频优化控制方法,其特征在于,若电网频率f<50-δ,机组实发负荷Lr小于设定值Ls,电网频率f小于死区δ,机组快速升负荷;能源管理***评判电网频率f走势:
1)20s以内,触发电储能装置放电机制,此时机组DCS***调频功能被切除,切换风-光联合储能开关向电储能装置充电,若电储能装置不具备放电条件,转由DCS***调频方式升负荷,增大调频增益,叠加压力设定值偏置;
2)20s至60s之间,以频差调整为主,电储能装置充电为辅。
7.根据权利要求3、4、5、6任一项所述的一种新型的风光储协同调频优化控制方法,其特征在于,电网频率f越过死区范围,一次调频动作结束,而后根据电网频率f的变化重复整个流程。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110944053.9A CN113725871A (zh) | 2021-08-17 | 2021-08-17 | 一种新型的风光储协同调频优化控制方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110944053.9A CN113725871A (zh) | 2021-08-17 | 2021-08-17 | 一种新型的风光储协同调频优化控制方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
CN113725871A true CN113725871A (zh) | 2021-11-30 |
Family
ID=78676227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110944053.9A Pending CN113725871A (zh) | 2021-08-17 | 2021-08-17 | 一种新型的风光储协同调频优化控制方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN113725871A (zh) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114825410A (zh) * | 2022-06-29 | 2022-07-29 | 西安热工研究院有限公司 | 一种火电厂用中压直流储能*** |
CN117748595A (zh) * | 2024-02-19 | 2024-03-22 | 宁波市电力设计院有限公司 | 基于清洁能源的海上综合供电*** |
-
2021
- 2021-08-17 CN CN202110944053.9A patent/CN113725871A/zh active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114825410A (zh) * | 2022-06-29 | 2022-07-29 | 西安热工研究院有限公司 | 一种火电厂用中压直流储能*** |
CN117748595A (zh) * | 2024-02-19 | 2024-03-22 | 宁波市电力设计院有限公司 | 基于清洁能源的海上综合供电*** |
CN117748595B (zh) * | 2024-02-19 | 2024-05-03 | 宁波市电力设计院有限公司 | 基于清洁能源的海上综合供电*** |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN109888834B (zh) | 一种基于改进mppt方法与蓄电池自平衡快速充电耦合控制的光伏发电*** | |
CN113725871A (zh) | 一种新型的风光储协同调频优化控制方法 | |
JP7011881B2 (ja) | ハイブリッド発電システム及び電力制御装置 | |
CN107492910B (zh) | 一种含柴储的离网微电网自适应控制与主电源切换方法 | |
AU2013251221B2 (en) | Power generation system, backup power supply, data center installation method, power generation system controller, power system, and power generation system operating method. | |
WO2020016808A1 (en) | System and method for fluctuating renewable energy-battery optimization to improve battery life-time | |
JP2010259303A (ja) | 分散発電システム | |
WO2014112454A1 (ja) | 制御装置及び方法並びにプログラム、それを備えた自然エネルギー発電装置 | |
JP7181691B2 (ja) | 再生可能エネルギーハイブリッド発電システム及びその制御方法 | |
CN109713734B (zh) | 一种光伏功率调节方法、装置、设备及介质 | |
CN110571853A (zh) | 一种基于径向基神经网络风光发电mppt控制方法及*** | |
CN113708402A (zh) | 一种离网型微电网的能量分配管理***及其方法 | |
CN104281984A (zh) | 一种用于微电网经济运行的供电方法 | |
JP7180993B2 (ja) | 発電システム | |
CN103515980A (zh) | 含地源热泵的微电网能量管理方法 | |
CN114825476A (zh) | 一种考虑运行状态的分布式光伏有功控制方法 | |
Pragaspathy et al. | Advanced control strategies for the grid integration of wind energy system employed with battery units | |
Shengtie et al. | Coordination control of energy management for stand-alone wind/pv hybrid systems | |
Ishibashi et al. | Control method of energy storage system to increase output power from power conditioning systems (PCS) | |
KR102623434B1 (ko) | 피크 전력 검출에 대응하여 에너지 저장 장치의 충방전을 제어하는 방법 및 이를 위한 장치 | |
Ishibashi et al. | Control Method of Energy Storage System to Improve Output Power of PCS | |
JP7181160B2 (ja) | 発電制御装置、発電制御方法および再生可能エネルギーハイブリッド発電システム | |
CN113256009B (zh) | 一种基于气热惯性的两阶段多备用配置方法、***和装置 | |
CN115360690B (zh) | 一种新能源制氢***及方法 | |
EP4283813A1 (en) | Water electrolysis system managing power supply of renewable energy |
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 |