CN112698089A - Method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation - Google Patents
Method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation Download PDFInfo
- Publication number
- CN112698089A CN112698089A CN202011459582.1A CN202011459582A CN112698089A CN 112698089 A CN112698089 A CN 112698089A CN 202011459582 A CN202011459582 A CN 202011459582A CN 112698089 A CN112698089 A CN 112698089A
- Authority
- CN
- China
- Prior art keywords
- frequency modulation
- electric quantity
- integral electric
- primary frequency
- frequency
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000009471 action Effects 0.000 claims abstract description 42
- 238000009825 accumulation Methods 0.000 claims description 21
- 238000004364 calculation method Methods 0.000 claims description 21
- 230000010354 integration Effects 0.000 claims description 15
- 230000033228 biological regulation Effects 0.000 claims description 13
- 230000003111 delayed effect Effects 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000012546 transfer Methods 0.000 claims description 3
- 238000005457 optimization Methods 0.000 abstract description 3
- 230000000007 visual effect Effects 0.000 abstract description 3
- 230000001186 cumulative effect Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Control Of Eletrric Generators (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention discloses a method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation, which comprises the following steps: (1) calculating frequency difference, (2) judging the condition of primary frequency modulation action, (3) integrating frequency modulation actual integral electric quantity, (4) integrating theoretical integral electric quantity and (5) displaying pictures. The invention automatically calculates the theoretical integral electric quantity and the actual action integral electric quantity value of the unit during the primary frequency modulation action through the control logic, visually displays and records key parameters, analyzes the primary frequency modulation capability of the unit by combining historical trends, has a segmented, comparable and thinnable analysis mode, is more visual and simpler to display, fully improves the accuracy and precision of analyzing the reasons of insufficient primary frequency modulation action, and provides a reliable basis for the optimization of the logic.
Description
Technical Field
The invention belongs to the technical field of thermal power generation, and particularly relates to a method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation.
Background
The primary frequency modulation of the thermal generator set refers to the characteristic that when the frequency of a power grid deviates from a rated value, a generator set regulation control system automatically controls the active power of the generator set to be increased (when the frequency is reduced) or decreased (when the frequency is increased) so as to enable the frequency of the power grid to quickly return to the rated value range. At present, during the primary frequency modulation action, the change of power and frequency is only calculated in logic, and cannot be visually displayed, and the number of actions of theoretical integral electric quantity and the number of actions of actual integral electric quantity are not calculated in a statistical manner, so that the analysis and judgment of the primary frequency modulation action capability cannot be carried out, and the improvement of the primary frequency modulation quality is difficult to do. For example, patent application publication No. CN106410857A discloses a method for realizing primary frequency modulation function of unit generator set, comprising the following steps: (1) performing deviation calculation on a rated rotating speed value of the generator set and an actual rotating speed value of the generator set, converting the deviation into a frequency difference-power signal through a function f1(x), and performing per-unit processing on the frequency difference-power signal through a function f2(x) to obtain a primary frequency modulation power-valve position increment signal; (2) and (3) performing rate limiting and power amplitude limiting processing on a medium-voltage regulating load instruction or a manual load instruction signal sent by a field attendant, superposing and summing the signal with a frequency difference-power signal converted by a function f1(x), performing deviation operation on the signal with an actual load feedback signal of the unit, performing proportional-integral processing, and outputting, superposing and summing the signal with the function f2(x) to form an electric regulation comprehensive door regulating instruction. The invention not only ensures the response speed of the primary frequency modulation of the unit, but also ensures the continuity of the participation of the unit in the primary frequency modulation, and ensures that the primary frequency modulation function of the unit is always in an input state.
Disclosure of Invention
The invention aims to solve the technical problem of providing an automatic calculation method of a primary frequency modulation theoretical integral electric quantity and an actual integral electric quantity, which comprises the following steps:
(1) frequency difference calculation
Frequency difference calculation formula:
or Δ f ═ fn-f0，
A switching selection algorithm block is made, one of the frequency difference calculation modes is selected,
if the primary frequency modulation input signal is triggered, the frequency difference calculation value is transmitted downwards, otherwise, the downward transmission value is constant 0;
where Δ f is the frequency difference, Δ s is the slip, fnIs a measured value of frequency, f0The primary frequency modulation input signal is rated frequency, and the triggering condition of the primary frequency modulation input signal is delta f < -0.03333Hz, or delta f > 0.03333 Hz;
(2) primary frequency modulation action condition judgment
Judging a frequency over-frequency modulation action dead zone, wherein delta f is greater than 0.03333Hz, or delta f is less than-0.03333 Hz;
secondly, the frequency over-modulation action is judged by a threshold, wherein delta f is more than 0.05Hz, or delta f is less than-0.05 Hz;
thirdly, judging frequency modulation and load increase, wherein delta f is less than-0.03333 Hz;
judging frequency modulation load reduction, wherein delta f is more than 0.03333 Hz;
(3) frequency modulation actual integral electric quantity integration
Accumulation algorithm block RESETSUM operating conditions: primary frequency modulation is already put into use;
integrating formula of frequency modulation actual integral electric quantity:
wherein, PkFor the purpose of real-time power,
the initial power is locked when the frequency modulation action passes through a dead zone; the integral starting time is frequency over dead time;
k is the multiplication coefficient of the input quantity of the accumulation block, and T is 50 ms;
integrating the frequency modulation actual integral electric quantity and adding the integrated electric quantity into a historical record;
fourthly, accumulating the reset condition of the algorithm block: the primary frequency modulation action (over dead zone) signal disappears and is delayed for 5-8 s;
(4) theoretical integral electric quantity integration
Accumulation algorithm block RESETSUM operating conditions: primary frequency modulation is already put into use;
theoretical integral electric quantity integrating formula:
wherein: Δ F ═ Δ F-0.03333, Δ F > 0.03333 Hz; or Δ F ═ Δ F +0.03333, Δ F < -0.03333 Hz; or Δ F ═ 0, -0.03333Hz < Δ F < 0.03333 Hz; delta f is a calculated value of the frequency difference obtained in the step (1); peThe rated power of the unit; k is the multiplication factor of the accumulated block input,
T＝50ms；
theoretical integral electric quantity integration is added into the history record;
fourthly, accumulating the reset condition of the algorithm block: the primary frequency modulation action (over dead zone) signal disappears and is delayed for 5-8 s;
(4) display of pictures
Displaying the primary frequency modulation input, the frequency modulation increase, the frequency modulation decrease and the instantaneous theoretical compensation electric quantity signal and value on a picture through a picture configuration tool;
when the frequency of the unit is more than 50.03333Hz, frequency modulation reduction is output
"Signal, reduced Power output (MW) is negative, when the frequency of the set is less than 49.96667Hz, frequency modulation increase is output
The signal and the converted power output quantity (MW) are positive values and are respectively displayed on a coordination control picture of the unit.
The above-mentioned scheme is preferable, and,
and adopting a transfer condition selection algorithm block, and outputting and locking the current real transmitting power if the trigger condition is a frequency over-dead zone.
The scheme is preferred, the primary frequency modulation logic control loop is realized by the joint regulation action of the unit distributed control system side and the digital electro-hydraulic regulation system side, wherein the primary frequency modulation quick action regulation load of the digital electro-hydraulic regulation system is open-loop control, and the primary frequency modulation compensation pressure and the stable load of the distributed control system are closed-loop control.
Preferably, in step (3), the integration adopts a RESETSUM accumulation algorithm block, that is, instantaneous quantities are accumulated, the input quantity of the accumulation algorithm block needs to be converted according to the logic scanning period of the control system, the scanning period T of the logic page task area of the system is 50ms, the unit of power calculation is MW, and the unit of integrated electric quantity is MW · h.
Preferably, the step (3) and the step (4) run synchronously.
The scheme is preferable, and the calculation formula of the frequency difference delta f in the step (1) is
Preferably, in the step (4), the frequency difference Δ f is calculated as Δ f ═ fn-f0。
Compared with the prior art, the invention has the following advantages:
1. the theoretical integral electric quantity and the actual action integral electric quantity value of the unit during the primary frequency modulation action are automatically calculated through the control logic, the key parameters are visually displayed and recorded, the primary frequency modulation capability of the unit is analyzed in combination with historical trends, the analysis mode can be segmented, compared and refined, the display is more visual and concise, the accuracy and precision of analyzing the reasons of insufficient primary frequency modulation action are fully improved, and a reliable basis is provided for the optimization of the logic.
2. The degree of automation of primary frequency modulation calculation judgment is improved, and automatic calculation is more accurate.
3. The labor intensity and difficulty of manual calculation of the integral electric quantity of personnel are greatly reduced, and an abstract calculation equation is more visual and concrete through trend display.
4. The displayed picture result provides the operation judgment basis for operators, and the occurrence of manual intervention is reduced.
5. Through the integration analysis and logic optimization of the integral electric quantity, the occurrence of insufficient primary frequency modulation action can be effectively reduced, and the primary frequency modulation qualification rate is improved.
Drawings
FIG. 1 is a logic diagram of the present invention for automatically calculating the theoretical integral electric quantity and the actual integral electric quantity of primary frequency modulation;
fig. 2 is a diagram illustrating the effect verification of the present invention.
Reference numerals: 1. calculating frequency difference, and selecting frequency or rotating speed; 2. judging the dead zone passing, threshold passing, frequency modulation increasing and frequency modulation decreasing of primary frequency modulation; 3. actual power selection, namely generally selecting the actual power of a DEH side; 4. accumulating the algorithm block input quantity product coefficient K; 5. calculating the actual power integral electric quantity of the primary frequency modulation action of the unit; 6. a frequency difference Δ f function; 7. calculating instantaneous theoretical compensation electric quantity of primary frequency modulation action of the unit; 8. and calculating the theoretical integral electric quantity of the primary frequency modulation action of the unit.
Detailed Description
In order that the objects and advantages of the invention will be more clearly understood, the following detailed description of the invention is given in conjunction with the accompanying drawings and examples.
The invention discloses a method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation, which comprises the following steps as shown in figure 1:
(1) frequency difference calculation
Frequency difference calculation formula:
(Hz), or Δ f ═ fn-f0(Hz), where Δ f is the frequency difference, Δ s is the slip, fnIs a measured value of frequency, f0Is the nominal frequency.
The selection of the switching selection algorithm block as the frequency or the rotational speed is specifically determined by the power transmission network signal, and the selection in the present embodiment is the DEH actual measurement rotational speed signal, that is, the selection is made
If the primary frequency modulation input signal is triggered (the triggering condition of the primary frequency modulation input signal is delta f < -0.03333Hz or delta f > 0.03333Hz), the calculated frequency difference value is transmitted downwards, otherwise, the value of the downward transmission is constant 0.
(2) Primary frequency modulation action condition judgment
Judging a frequency over-frequency modulation action dead zone, and triggering a frequency modulation load reduction signal and a primary frequency modulation action (over-dead zone) signal if delta f is more than 0.03333 Hz; or Δ f < -0.03333Hz, frequency modulated load increase and primary frequency modulated action (over dead zone) signal trigger.
Secondly, the frequency over-modulation action is judged by a threshold, wherein delta f is more than 0.05Hz or is less than minus 0.05Hz, and a primary frequency modulation threshold-crossing signal triggers.
(3) Frequency modulation actual integral electric quantity integration
Cumulative algorithm block RESETSUM operating conditions: primary frequency modulation is already put into use;
the frequency modulation actual integral electric quantity integrating formula is as follows:
wherein, PkFor the purpose of real-time power,
for locking when the frequency-modulated action passes a dead zoneStarting power; the integral starting time is frequency over dead time;
k is a product coefficient of the input quantity of the accumulation algorithm block, and T is 50 ms;
integrating the frequency modulation actual integral electric quantity: generating set P is received in integration of actual integral electric quantitykThe real-time power signal is generally selected from DEH side actual measurement power, and when the signal of 'primary frequency modulation action (over dead zone)' is triggered, the actual measurement power value is 'locked', that is to say
Reuse of Pk(real-time power value) minus
The power value is multiplied by K (the multiplication coefficient of the input quantity of the accumulation algorithm block), the RESETSUM accumulation algorithm block is entered for accumulation, the actual integral power value during the primary frequency modulation action is output, and the actual integral power value is added into a history record. Wherein
And adopting a transfer condition selection algorithm block, and outputting and locking the current real transmitting power if the trigger condition is a frequency over-dead zone. The integration adopts a RESETSUM accumulation algorithm block, namely the accumulation of instantaneous quantity, the input quantity of the accumulation algorithm block needs to be converted according to the logic scanning period of a control system, the scanning period T of a logic page task area of the system is 50ms, the unit of power calculation is MW, and the unit of integral electric quantity is MW & h.
Cumulative algorithm block RESETSUM reset condition: the primary chirp (over dead zone) signal disappears and is delayed by 5-8 s.
(4) Theoretical integral electric quantity integration
Cumulative algorithm block RESETSUM operating conditions: primary frequency modulation is already put into use.
Theoretical integral electric quantity integration formula:
wherein: Δ F ═ Δ F-0.03333, Δ F > 0.03333 Hz; or Δ F ═ Δ F +0.03333, Δ F < -0.03333 Hz; or Δ F ═ 0, -0.03333Hz < Δ F < 0.03333 Hz; delta f is a calculated value of the frequency difference obtained in the step (1); peThe rated power of the unit; k is the multiplication factor of the accumulated block input,
T＝50ms。
and (3) integrating the theoretical integral electric quantity: the frequency difference signal of the generator set is received by the integration of the theoretical integral electric quantity, and in the embodiment, is delta f-fn-f0Shielding the dead zone range of +/-0.03333 Hz by using the FUNTION function without integrating, and after the frequency difference exceeds the dead zone, obtaining the frequency difference by using a formula
Building a logic, and outputting instantaneous theoretical compensation electric quantity; the instantaneous theoretical compensation electric quantity is multiplied by the product coefficient K of the input quantity of the accumulation algorithm block, and the result is input into the RESETSUM accumulation algorithm block for accumulation
And outputting a theoretical integral electric quantity value during primary frequency modulation action, and adding the theoretical integral electric quantity value into a historical record.
Cumulative algorithm block RESETSUM reset condition: the primary chirp (over dead zone) signal disappears and is delayed by 5-8 s.
The frequency difference Δ F is converted to Δ F using the FUNCTION algorithm, as exemplified below:
| number of times | 1 | 2 | 3 | 4 | 5 |
| Δf | -1 | -0.03333 | 0 | 0.03333 | 1 |
| ΔF | -0.96667 | 0 | 0 | 0 | 0.96667 |
(4) Display of pictures
Displaying signals and values of 'primary frequency modulation input', 'frequency modulation increase', 'frequency modulation decrease', 'instantaneous theoretical compensation electric quantity' on a picture through a picture configuration tool;
when the frequency of the unit is more than 50.03333Hz, frequency modulation reduction is output
"Signal, reduced Power output (MW) is negative, when the frequency of the set is less than 49.96667Hz, frequency modulation increase is output
The signal and the converted power output quantity (MW) are positive values and are respectively displayed on a coordination control picture of the unit.
Preferably, the primary frequency modulation logic control loop is realized by the joint regulation action of a unit Distributed Control System (DCS) side and a digital electro-hydraulic regulation system (DEH) side, wherein the load is regulated by the primary frequency modulation quick action of the digital electro-hydraulic regulation system (DEH), namely open-loop control, and the primary frequency modulation compensation pressure and the stable load of the Distributed Control System (DCS), namely closed-loop control.
Preferably, step (3) and step (4) are run synchronously.
The above-described embodiments are only specific examples for further explaining the object, technical solution and advantageous effects of the present invention in detail, and the present invention is not limited thereto. Any modification, equivalent replacement, improvement and the like made within the scope of the disclosure of the present invention are included in the protection scope of the present invention.
Claims (7)
1. The method for automatically calculating the theoretical integral electric quantity and the actual integral electric quantity of the primary frequency modulation is characterized by comprising the following steps of:
(1) frequency difference calculation
Frequency difference calculation formula:
or Δ f ═ fn-f0，
A switching selection algorithm block is made, one of the frequency difference calculation modes is selected,
if the primary frequency modulation input signal is triggered, the frequency difference calculation value is transmitted downwards, otherwise, the downward transmission value is constant 0;
where Δ f is the frequency difference, Δ s is the slip, fnIs a measured value of frequency, f0The primary frequency modulation input signal is rated frequency, and the triggering condition of the primary frequency modulation input signal is delta f < -0.03333Hz, or delta f > 0.03333 Hz;
(2) primary frequency modulation action condition judgment
Judging a frequency over-frequency modulation action dead zone, wherein delta f is greater than 0.03333Hz, or delta f is less than-0.03333 Hz;
secondly, the frequency over-modulation action is judged by a threshold, wherein delta f is more than 0.05Hz, or delta f is less than-0.05 Hz;
thirdly, judging frequency modulation and load increase, wherein delta f is less than-0.03333 Hz;
judging frequency modulation load reduction, wherein delta f is more than 0.03333 Hz;
(3) frequency modulation actual integral electric quantity integration
Accumulation algorithm block RESETSUM operating conditions: primary frequency modulation is already put into use;
integrating formula of frequency modulation actual integral electric quantity:
wherein, PkFor the purpose of real-time power,
the initial power is locked when the frequency modulation action passes through a dead zone; the integral starting time is frequency over dead time;
k is the multiplication coefficient of the input quantity of the accumulation block, and T is 50 ms;
integrating the frequency modulation actual integral electric quantity and adding the integrated electric quantity into a historical record;
fourthly, accumulating the reset condition of the algorithm block: the primary frequency modulation action (over dead zone) signal disappears and is delayed for 5-8 s;
(4) theoretical integral electric quantity integration
Accumulation algorithm block RESETSUM operating conditions: primary frequency modulation is already put into use;
theoretical integral electric quantity integrating formula:
wherein: Δ F ═ Δ F-0.03333, Δ F > 0.03333 Hz; or Δ F ═ Δ F +0.03333, Δ F < -0.03333 Hz; or Δ F ═ 0, -0.03333Hz < Δ F < 0.03333 Hz; delta f is a calculated value of the frequency difference obtained in the step (1); peThe rated power of the unit; k is the multiplication factor of the accumulated block input,
T＝50ms；
theoretical integral electric quantity integration is added into the history record;
fourthly, accumulating the reset condition of the algorithm block: the primary frequency modulation action (over dead zone) signal disappears and is delayed for 5-8 s;
(5) display of pictures
Displaying the primary frequency modulation input, the frequency modulation increase, the frequency modulation decrease and the instantaneous theoretical compensation electric quantity signal and value on a picture through a picture configuration tool;
when the frequency of the unit is more than 50.03333Hz, frequency modulation reduction is output
"Signal, reduced Power output (MW) is negative, when the frequency of the set is less than 49.96667Hz, frequency modulation increase is output
The signal and the converted power output quantity (MW) are positive values and are respectively displayed on a coordination control picture of the unit.
2. The method according to claim 1, wherein the method comprises the following steps:
and adopting a transfer condition selection algorithm block, and outputting and locking the current real transmitting power if the trigger condition is a frequency over-dead zone.
3. The method according to claim 1, wherein the method comprises the following steps: the primary frequency modulation logic control loop is realized by the joint regulation action of the unit decentralized control system side and the digital electro-hydraulic regulation system side, wherein the primary frequency modulation quick action regulation load of the digital electro-hydraulic regulation system is open-loop control, and the primary frequency modulation compensation pressure and the stable load of the decentralized control system are closed-loop control.
4. The method according to claim 1, wherein the method comprises the following steps: in the step (3), the integration adopts a RESETSUM accumulation algorithm block, namely, the accumulation of instantaneous quantity, the input quantity of the accumulation algorithm block needs to be converted according to the logic scanning period of the control system, the scanning period T of the logic page task area of the system is 50ms, the unit of power calculation is MW, and the unit of integrated electric quantity is MW & h.
5. The method according to claim 1, wherein the method comprises the following steps: and (4) synchronously operating the step (3) and the step (4).
6. The method for automatically calculating the theoretical integral electric quantity and the actual integral electric quantity of primary frequency modulation according to any one of claims 1 to 5, wherein: the calculation formula of the frequency difference delta f in the step (1) is as follows
7. The method according to any one of claims 1 to 5, wherein the method comprises the following steps: in the step (4), the frequency difference delta f is calculated according to the formula that delta f is fn-f0。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459582.1A CN112698089B (en) | 2020-12-11 | 2020-12-11 | Automatic calculation method for primary frequency modulation theoretical integral electric quantity and actual integral electric quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011459582.1A CN112698089B (en) | 2020-12-11 | 2020-12-11 | Automatic calculation method for primary frequency modulation theoretical integral electric quantity and actual integral electric quantity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112698089A true CN112698089A (en) | 2021-04-23 |
| CN112698089B CN112698089B (en) | 2023-11-21 |
Family
ID=75507373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011459582.1A Active CN112698089B (en) | 2020-12-11 | 2020-12-11 | Automatic calculation method for primary frequency modulation theoretical integral electric quantity and actual integral electric quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112698089B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465371A (en) * | 2017-08-31 | 2017-12-12 | 国网山东省电力公司电力科学研究院 | Generating set primary frequency regulation self-tuing on line controller, control system and method |
| CN108879731A (en) * | 2018-07-27 | 2018-11-23 | 国网重庆市电力公司电力科学研究院 | A kind of primary frequency modulation performance index Evaluation Method |
| CN208459479U (en) * | 2018-07-10 | 2019-02-01 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | A kind of real-time monitoring primary frequency modulation device electricity display device |
| CN109638879A (en) * | 2018-12-14 | 2019-04-16 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation dynamic compensation adjustment system and method based on performance indicator assessment |
| JP2019115249A (en) * | 2017-12-25 | 2019-07-11 | 赫普科技発展（北京）有限公司 | Method, apparatus, and system for frequency modulation in power grid |
| CN110460114A (en) * | 2019-08-09 | 2019-11-15 | 上海明华电力科技有限公司 | Fired power generating unit primary frequency modulation control method based on the compensation of frequency modulation load instruction |
| CN112039087A (en) * | 2020-07-29 | 2020-12-04 | 大唐水电科学技术研究院有限公司 | Calculation method of primary frequency modulation theoretical electric quantity |
-
2020
- 2020-12-11 CN CN202011459582.1A patent/CN112698089B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107465371A (en) * | 2017-08-31 | 2017-12-12 | 国网山东省电力公司电力科学研究院 | Generating set primary frequency regulation self-tuing on line controller, control system and method |
| JP2019115249A (en) * | 2017-12-25 | 2019-07-11 | 赫普科技発展（北京）有限公司 | Method, apparatus, and system for frequency modulation in power grid |
| CN208459479U (en) * | 2018-07-10 | 2019-02-01 | 中国大唐集团科学技术研究院有限公司华东电力试验研究院 | A kind of real-time monitoring primary frequency modulation device electricity display device |
| CN108879731A (en) * | 2018-07-27 | 2018-11-23 | 国网重庆市电力公司电力科学研究院 | A kind of primary frequency modulation performance index Evaluation Method |
| CN109638879A (en) * | 2018-12-14 | 2019-04-16 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation dynamic compensation adjustment system and method based on performance indicator assessment |
| CN110460114A (en) * | 2019-08-09 | 2019-11-15 | 上海明华电力科技有限公司 | Fired power generating unit primary frequency modulation control method based on the compensation of frequency modulation load instruction |
| CN112039087A (en) * | 2020-07-29 | 2020-12-04 | 大唐水电科学技术研究院有限公司 | Calculation method of primary frequency modulation theoretical electric quantity |
Non-Patent Citations (2)
| Title |
|---|
| 何波: "金鸡滩水电厂"两个细则"考核出现的问题及解决办法", 红水河, vol. 33, no. 1, pages 103 - 106 * |
| 邹江: "火电厂辅助服务管理的指标计算与自动报表 硕", 中国优秀硕士学位论文全文库 工程科技Ⅱ辑, vol. 2015, no. 3, pages 1 - 65 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112698089B (en) | 2023-11-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109638879B (en) | Primary frequency modulation dynamic compensation adjustment system and method based on performance index evaluation | |
| US10480488B2 (en) | Wind turbine with a speed regulator and a generator regulator | |
| CN109921438B (en) | Primary frequency modulation dynamic adjusting device considering AGC reverse adjustment | |
| EP0750236B1 (en) | Digital pid control apparatus | |
| CN108443057B (en) | A kind of control method and control device of guide vanes of water turbine aperture | |
| EP2287465B1 (en) | Wind-turbine-dynamic-characteristics monitoring apparatus and method therefore | |
| EP1571746A1 (en) | Active power regulating system of a wind farm | |
| JP2014043862A (en) | Method for controlling specified power reserve of power generator in single cycle or combined cycle gas turbine power plant, and power generating system for use with same method | |
| CN108649619B (en) | Primary frequency modulation and active power regulation locking control method for hydroelectric generating set | |
| US20130114302A1 (en) | Method and apparatus for detecting islanding conditions of a distributed grid | |
| JP7120600B2 (en) | Processing device, processing method and program | |
| Jain et al. | Three area power system load frequency control using fuzzy logic controller | |
| KR102042964B1 (en) | Wireless monitoring system for photovoltaic generating apparatus | |
| CN102808729A (en) | Method used for running wind power generation equipment in case of fault of electrified wire netting and wind power generation equipment | |
| CN109459985A (en) | A kind of method of power plant's primary frequency modulation real time monitoring | |
| EP2840703A2 (en) | Power control system of an electrical generation unit | |
| CN112698089A (en) | Method for automatically calculating theoretical integral electric quantity and actual integral electric quantity of primary frequency modulation | |
| CN107276105B (en) | Hydroelectric generating set primary frequency modulation method based on dynamic dead zone | |
| KR100968796B1 (en) | Control method for fast and stable load control by compensating turbine and boiler response delays in power plants | |
| Shah et al. | The state space modeling of single two and three ALFC of power system using integral control and optimal LQR control method | |
| CN110048410B (en) | Variable frequency load control method for realizing stable operation of ship power grid | |
| CN106111929A (en) | A kind of round billet continuous casting straightening motor load dynamically distributes control system and control method thereof | |
| CN102873106B (en) | Quick and precise elongation control method for temper mill | |
| CN113867289A (en) | Industrial big data-based cement production sintering system control index optimization method | |
| CN102013668A (en) | Method for implementing overload inverse-time protection of alternating-current motor |
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 |