CN115313528B - AGC active power adjusting method for new energy power station - Google Patents
AGC active power adjusting method for new energy power station Download PDFInfo
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- CN115313528B CN115313528B CN202211238286.8A CN202211238286A CN115313528B CN 115313528 B CN115313528 B CN 115313528B CN 202211238286 A CN202211238286 A CN 202211238286A CN 115313528 B CN115313528 B CN 115313528B
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- 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
- H02J3/48—Controlling the sharing of the in-phase component
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- 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
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- 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]
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- 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
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- 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
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Abstract
The invention relates to the technical field of automatic control of power stations, and particularly discloses a method for regulating AGC active power of a new energy power station, which comprises the following steps: modeling each PLC device and setting device parameters; judging whether the total power to be transmitted exceeds the sum of the power generation power upper limits of all the devices, if so, distributing the power generation power upper limits of all the devices, otherwise, collecting the current power generation power of all the devices, and calculating the difference between the total power to be transmitted and the sum of the current power generation power of all the devices as the power to be regulated; calculating the adjustable power ratio of each device, sequencing the adjustable power ratio according to the priority from large to small, and distributing the power to be regulated to each device according to the priority of each device until the distribution is completed; calculating the setpoint power according to the allocation result, and issuing a power adjustment command according to the setpoint power and executing the power adjustment command. The invention can minimize the adjustment times of the PLC equipment under the condition of meeting the total power output of the power station, thereby being beneficial to improving the response speed and prolonging the service life of the equipment.
Description
Technical Field
The invention relates to the technical field of automatic control of power stations, in particular to a method for regulating AGC active power of a new energy power station.
Background
Currently, there is no clear national standard or industry standard for the method for distributing active power of inverter PLC for new energy power station AGC (Automatic Generation Control, automatic power generation control), and each equipment manufacturer will propose a respective power distribution algorithm in combination with its own product characteristics. From the existing data, the traditional power average adjustment algorithm is relatively simple, the problem is considered, the target generated power of each inverter is distributed according to the proportion of the maximum generated power of each inverter in the total maximum generated power, and when the total AGC (automatic gain control) output power changes, all inverters in a station need to be adjusted, so that the inverter adjustment times are too frequent, and the service life of equipment is influenced.
Disclosure of Invention
The invention aims to provide the AGC active power regulating method for the new energy power station, which not only can meet the requirements of the AGC total output power of the power station, but also can regulate according to the principle that the total regulating times of an inverter are minimum, thereby being beneficial to prolonging the service life of inverter equipment and promoting the long-term stable and efficient operation of the power station.
The invention realizes the above purpose through the following technical scheme:
a new energy power station AGC active power adjusting method includes the steps:
(1) Modeling each inverter PLC device in the AGC of the power station, and setting relevant PLC device parameters;
(2) Judging the AGC total power P of the power station agc If the sum of the power generation upper limits of all the PLC devices is exceeded, carrying out power distribution according to the power generation upper limits of all the PLC devices, and entering the step (5), otherwise, entering the step (3);
(3) Collecting the current power P of each PLC device in real time, and calculating the sum P of the current power P of each PLC device sum Calculating the AGC total downlink power P of a power station agc Sum P of current power generation power of each PLC device sum Is the difference P of (2) diff As power to be regulated;
(4) Calculating an adjustable power ratio R of each PLC device, sequencing the adjustable power ratio R according to priority from large to small, and sequencing the power P to be regulated diff Sequentially distributing the power P to be regulated to all the PLC devices according to the priority of the PLC devices diff All the distribution is completed;
(5) And calculating the set point power of each inverter PLC according to the distribution result, and issuing a power adjustment command to each PLC device according to the set point power and executing the power adjustment command.
A further improvement is that the PLC device parameters include an upper power limit P max Lower power limit P min Regulating dead zone P dead Maximum single adjustment Δp max Active power adjustment rate V.
The further improvement is that in the step (4), the specific steps of calculating the adjustable power ratio R of each PLC device are as follows:
when the power P is to be regulated diff When the power is more than 0, the power needs to be up-regulated, and the upward adjustable power ratio R of each PLC device is at the same time i up The method comprises the following steps:
when the power P is to be regulated diff When less than 0, the power needs to be adjusted downwards, and the power ratio R of each PLC device is adjusted downwards i down The method comprises the following steps:
a further improvement is that in the step (4), when the power needs to be up-regulated, the upper power limit P of the PLC equipment is combined max To be regulated power P diff Sequentially distributing the priority levels of all the PLC devices to all the PLC devices; when the power needs to be adjusted down, combining the lower power limit P of the PLC equipment min To be regulated power P diff And sequentially distributing the priority levels of the PLC devices to the PLC devices.
In the step (5), when the set point power of each inverter PLC is calculated, the active power adjustment rate V of each PLC device is combined, so that the power adjustment command issued to each PLC device does not exceed the adjustment capability allowed by each inverter PLC.
In the step (5), the set point power of each inverter PLC is corrected according to the parameters of the PLC equipment, and a power adjustment command is issued to each PLC equipment and executed according to the corrected set point power.
A further improvement is that the process of modifying comprises:
according to a single maximum adjustment quantity DeltaP max And (3) correcting: if the setting point power is not more than the single maximum adjustment quantity delta P of the PLC equipment compared with the current power P max No correction is needed; if the single maximum adjustment amount delta P is exceeded max Correcting the setting point power to be the current power P plus a single maximum adjustment quantity delta P max 。
A further improvement is that the process of modifying comprises:
according to the adjustment dead zone P dead And (3) correcting: if the setting point power is not more than the current power P than the regulation dead zone P of the PLC equipment dead Correcting the set point power to the current power P, if the current power P exceeds the regulation dead zone P dead No correction is needed.
The further improvement is that in the step (4), the adjustable power ratio R is prioritized from large to small by adopting a rapid ranking method.
The further improvement is that the steps (2) - (5) are carried out regularly according to a preset period T, and the preset period T is more than or equal to 1s.
The invention has the beneficial effects that: under the condition of meeting the total AGC issued power of the power station, the invention can minimize the adjustment times of the PLC equipment, namely, if one PLC equipment is adjusted to reach the target in each calculation period, two PLC equipment are not required to be adjusted, which is beneficial to improving the response speed and prolonging the service life of the equipment.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The following detailed description of the present application is provided in conjunction with the accompanying drawings, and it is to be understood that the following detailed description is merely illustrative of the application and is not to be construed as limiting the scope of the application, since numerous insubstantial modifications and adaptations of the application will be to those skilled in the art in light of the foregoing disclosure.
As shown in fig. 1, a new energy power station AGC active power adjusting method includes the steps:
(1) The method comprises the steps of building a table of each inverter PLC device in the AGC of the power station to construct a model, and specifically comprises the following steps: setting up a PLC device parameter table in a relational database, and setting up related PLC device parameters including an upper power limit P max Lower power limit P min Regulating dead zone P dead Maximum single adjustment Δp max Active power adjustment rate V, etc.; a PLC device data table is established in a real-time database and used for recording intermediate results and real-time data of AGC calculation, such as real-time power, set point power, adjustment times and the like;
(2) Judging the AGC total power P of the power station agc Whether the target power to be regulated exceeds the sum of the upper limits of the power generation power of all the PLC devices or not, if so, carrying out power distribution according to the upper limits of the power generation power of all the PLC devices, and entering the step (5), otherwise, entering the step (3);
(3) Collecting the current power P of each PLC device in real time, and calculating the sum P of the current power P of each PLC device sum Calculating the AGC total downlink power P of a power station agc Sum P of current power generation power of each PLC device sum Is the difference P of (2) diff As power to be regulated;
(4) Calculating the adjustable power ratio R of each PLC device when the power P to be adjusted diff When the power is more than 0, the power needs to be up-regulated, and the upward adjustable power ratio R of each PLC device is at the same time i up The method comprises the following steps:
the power ratio R is upward adjustable by adopting a rapid sequencing method i up Priority ordering from big to small, combining with power upper limit P of PLC equipment max To be regulated power P diff Sequentially distributing the power P to be regulated to all the PLC devices according to the priority of the PLC devices diff All the distribution is completed;
in the invention, the specific steps of priority sorting by adopting a rapid sorting method are as follows: step one: an adjustable power ratio R is selected as a reference value at will, and a first or last adjustable power ratio R is usually selected as the reference value; step two: the rest adjustable power ratio R is respectively compared with the adjustable power ratio R (reference value), the PLC equipment with the power ratio R (reference value) larger than the adjustable power ratio R (reference value) is placed in front, the PLC equipment with the power ratio R (reference value) smaller than the adjustable power ratio R (reference value) is placed in back, and then the rest PLC equipment is divided into two parts according to the power ratio R (reference value) as a reference; step three: and (3) comparing and dividing the two parts of PLC equipment again in the mode of the first step and the second step until the number of the two parts of PLC equipment finally divided is 1, namely finishing the priority sorting of the PLC equipment from large to small.
Similarly, when the power P is to be regulated diff When less than 0, the power needs to be adjusted downwards, and the power ratio R of each PLC device is adjusted downwards i down The method comprises the following steps:
the downward adjustable power ratio R is realized by adopting a rapid sequencing method i down Priority ordering from big to small, combining with power lower limit P of PLC equipment min To be regulated power P diff Sequentially distributing the power P to be regulated to all the PLC devices according to the priority of the PLC devices diff All the distribution is completed;
(5) Calculating the setpoint power of each inverter PLC according to the distribution result, and combining the active power adjustment rate V of each PLC device during calculation so that the power adjustment command issued to each PLC device does not exceed the adjustment capacity allowed by each inverter PLC; and then, correcting the set point power of each inverter PLC according to the PLC equipment parameters, and issuing a power adjustment command to each PLC equipment according to the corrected set point power and executing the power adjustment command.
Wherein the correcting process comprises the following steps: according to a single maximum adjustment quantity DeltaP max And (3) correcting: if the setting point power is not more than the single maximum adjustment quantity delta P of the PLC equipment compared with the current power P max No correction is needed; if the single maximum adjustment amount delta P is exceeded max Correcting the setting point power to be the current power P plus a single maximum adjustment quantity delta P max The method comprises the steps of carrying out a first treatment on the surface of the According to the adjustment dead zone P dead And (3) correcting: if the setting point power is not more than the current power P than the regulation dead zone P of the PLC equipment dead Correcting the set point power to the current power P, if the current power P exceeds the regulation dead zone P dead No correction is needed.
It should be noted that, the steps (2) - (5) are performed periodically according to a preset period T, and the preset period T is greater than or equal to 1s, for example, 1s, 1.2s, 1.5s, 2s, etc.
The following description will be given by taking the case that the AGC total power delivered by the power station is larger than the current total power (up-regulation):
to-be-allocated power P diff =P agc –P sum =150-（40+40+40）=30（kW）
According to the scheme of the invention, the upward adjustable power ratio of each PLC is calculated by the method respectively as follows:
prioritizing and distributing the output power of each PLC according to the adjustable power ratio as follows:
i.e. only the PLC needs to be adjusted 1 The AGC total power target can be realized without adjusting the PLC 2 And PLC (programmable logic controller) 3 。
If the distribution is performed according to the existing distribution adjustment mode, namely, the proportion of the power generated by each PLC is adjustable, the power of each PLC set point is respectively as follows:
it can be seen that each calculation of the algorithm requires adjustment of all the PLC devices in the station, whereas the present invention requires adjustment of only the PLC 1 And (3) obtaining the product.
The foregoing examples illustrate only a few embodiments of the invention and are described in detail herein without thereby limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (6)
1. The AGC active power adjusting method for the new energy power station is characterized by comprising the following steps:
(1) Modeling each inverter PLC device in the new energy power station, and setting related PLC device parameters including a power upper limit P max Lower power limit P min Regulating dead zone P dead Maximum single adjustment Δp max Active power adjustment rate V;
(2) Judging the AGC total power P of the power station agc If the sum of the power generation upper limits of all the PLC devices is exceeded, carrying out power distribution according to the power generation upper limits of all the PLC devices, and entering the step (5), otherwise, entering the step (3);
(3) Collecting the current power P of each PLC device in real time, and calculating the sum P of the current power P of each PLC device sum Calculating the AGC total downlink power P of a power station agc Sum P of current power generation power of each PLC device sum Is the difference P of (2) diff As power to be regulated;
(4) Calculating an adjustable power ratio R of each PLC device:
when the power P is to be regulated diff At the time of > 0 "the total number of the cells,represents that the power needs to be up-regulated, and the power ratio R of each PLC device is up-regulated i up The method comprises the following steps:
when the power P is to be regulated diff When less than 0, the power needs to be adjusted downwards, and the power ratio R of each PLC device is adjusted downwards i down The method comprises the following steps:
the adjustable power ratio R is sequenced from large to small according to the priority, the adjustment is carried out according to the principle that the total adjustment frequency of the inverter is minimum, if one PLC device is adjusted to achieve the target in each calculation period, two PLC devices do not need to be adjusted, and when the power needs to be adjusted upwards, the upper power limit P of the PLC devices is combined max To be regulated power P diff Sequentially distributing the priority levels of all the PLC devices to all the PLC devices; when the power needs to be adjusted down, combining the lower power limit P of the PLC equipment min To be regulated power P diff Sequentially distributing the power P to be regulated to all the PLC devices according to the priority of the PLC devices diff All the distribution is completed;
(5) Calculating the setpoint power of each inverter PLC according to the distribution result, correcting the setpoint power of each inverter PLC according to the PLC equipment parameters, and issuing power adjustment commands to each PLC equipment according to the corrected setpoint power and executing the power adjustment commands.
2. The AGC active power adjustment method for a new energy power station according to claim 1, wherein in step (5), when calculating the setpoint power of each inverter PLC, the active power adjustment rate V of each PLC device is combined, so that the power adjustment command issued to each PLC device does not exceed the adjustment capability allowed by each inverter PLC.
3. The method for AGC active power adjustment of a new energy power station of claim 1, wherein the modifying comprises:
according to a single maximum adjustment quantity DeltaP max And (3) correcting: if the setting point power is not more than the single maximum adjustment quantity delta P of the PLC equipment compared with the current power P max No correction is needed; if the single maximum adjustment amount delta P is exceeded max Correcting the setting point power to be the current power P plus a single maximum adjustment quantity delta P max 。
4. The method for AGC active power adjustment of a new energy power station of claim 1, wherein the modifying comprises:
according to the adjustment dead zone P dead And (3) correcting: if the setting point power is not more than the current power P than the regulation dead zone P of the PLC equipment dead Correcting the set point power to the current power P, if the current power P exceeds the regulation dead zone P dead No correction is needed.
5. The method for regulating AGC active power of a new energy power station according to claim 1, wherein in step (4), the adjustable power ratio R is prioritized from high to low by a fast ranking method.
6. The method for regulating AGC active power of a new energy power station according to claim 1, wherein the steps (2) - (5) are performed at regular intervals according to a preset period T, and the preset period T is not less than 1s.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751737A (en) * | 2012-05-14 | 2012-10-24 | 中国电力科学研究院 | Method for simulating and analyzing automatic generation control of electrical power system containing wind power |
| CN103618339A (en) * | 2013-11-21 | 2014-03-05 | 大连理工大学 | Distribution method of total regulation power in automatic generation control |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103354365B (en) * | 2013-06-26 | 2015-06-17 | 国家电网公司 | Intelligent power adjusting method for photovoltaic power station |
| CN104124715A (en) * | 2014-08-11 | 2014-10-29 | 国家电网公司 | Automatic gain scheduling method for wind power plants distributed as priority level according to blower involvement |
| CN107947239B (en) * | 2017-12-18 | 2020-07-28 | 北京四方继保自动化股份有限公司 | Automatic power generation control method based on power variation and high-speed machine end power measurement |
| CN108092324B (en) * | 2017-12-20 | 2022-02-08 | 国电南瑞科技股份有限公司 | AGC control system and control method for wind power participating in peak shaving frequency modulation |
| CN108199420B (en) * | 2017-12-31 | 2019-10-22 | 北京金风科创风电设备有限公司 | Photovoltaic power plant and secondary frequency modulation control method thereof |
| CN110635521B (en) * | 2019-09-30 | 2021-02-09 | 国网辽宁省电力有限公司电力科学研究院 | Fair coordination control method and system based on electric quantity and reserve capacity |
| CN111313466A (en) * | 2020-03-09 | 2020-06-19 | 国网山东省电力公司电力科学研究院 | Sending-end power grid AGC optimization regulation and control method and system based on wind power priority regulation |
| CN111654059A (en) * | 2020-05-27 | 2020-09-11 | 国网天津市电力公司电力科学研究院 | Photovoltaic power station AGC control optimization method based on inverter classification control |
| CN112491082A (en) * | 2020-11-11 | 2021-03-12 | 国网江苏省电力有限公司盐城供电分公司 | Power grid cooperative voltage control method based on distributed power supply access |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751737A (en) * | 2012-05-14 | 2012-10-24 | 中国电力科学研究院 | Method for simulating and analyzing automatic generation control of electrical power system containing wind power |
| CN103618339A (en) * | 2013-11-21 | 2014-03-05 | 大连理工大学 | Distribution method of total regulation power in automatic generation control |
Non-Patent Citations (1)
| Title |
|---|
| 大规模风电接入电力系统的AGC控制参数修正;张宇泽;《电气自动化》;全文 * |
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Effective date of registration: 20230801 Address after: 306 AAC Technologies Building (Lvchuang Cloud Valley), No. 38, Gaoxin North 6th Road, Songpingshan Community, Xili Street, Nanshan District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Li Hi Tech Co.,Ltd. Address before: Room 501, No. 8, No. 300, Changjiang Road, Yantai Economic and Technological Development Zone, Yantai Area, China (Shandong) Pilot Free Trade Zone, Yantai City, Shandong Province, 264006 Patentee before: Ligao (Shandong) New Energy Technology Co.,Ltd. |
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