CN103368207A - Primary frequency modulation optimization method and device - Google Patents
Primary frequency modulation optimization method and device Download PDFInfo
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- CN103368207A CN103368207A CN2013103308683A CN201310330868A CN103368207A CN 103368207 A CN103368207 A CN 103368207A CN 2013103308683 A CN2013103308683 A CN 2013103308683A CN 201310330868 A CN201310330868 A CN 201310330868A CN 103368207 A CN103368207 A CN 103368207A
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Abstract
The embodiment of the invention discloses a primary frequency modulation optimization method and device. The method comprises the following steps of: receiving the power grid frequency of a power grid by using a frequency transducer on an electric grid frequency cabinet, converting the power grid frequency into a current signal, and transmitting the current signal to a distributed control system (DCS); and outputting a primary frequency modulation action signal by the DCS according to the current signal, transmitting the primary frequency modulation action signal to a steam turbine unit, and executing a primary frequency modulation action by the steam turbine unit according to the primary frequency modulation action signal. The grid frequency is used as a target in the primary frequency modulation action checking standard. The frequency transducer is adopted in the embodiment of the invention, so that the grid modulation consistency for primary frequency modulation can be realized, and the accuracy rate of primary frequency modulation action is increased.
Description
Technical field
The application relates to technical field of power systems, particularly relates to a kind of optimization method and device of primary frequency modulation.
Background technology
During each set grid-connection operation, be subjected to the external load influence of change, mains frequency changes, at this moment, the regulating system of each unit participates in regulating action, change each unit with load, make it to balance each other with external load, simultaneously, also reduce as possible the variation of mains frequency, this process is primary frequency modulation.
Existing primary frequency modulation normally adopts the steamer rotating speed as the frequency modulation measuring component, and therefore so that primary frequency modulation action steps saltus degree is large, the action accuracy rate is low.
Summary of the invention
For solving the problems of the technologies described above, the embodiment of the present application provides a kind of optimization method and device of primary frequency modulation, to improve the action accuracy rate of primary frequency modulation.
Technical scheme is as follows:
A kind of optimization method of primary frequency modulation comprises:
Be installed in the mains frequency that electric net frequency frequency transmitter cashier's office in a shop receives electrical network, and convert described mains frequency to current signal, described current signal is sent into distributed monitoring control system;
Described DCS exports the primary frequency modulation actuating signal according to described current signal, and described primary frequency modulation actuating signal is sent to Steam Turbine, and described Steam Turbine is carried out the primary frequency modulation action according to described primary frequency modulation actuating signal.
Preferably, in the optimization method of above-mentioned primary frequency modulation, described DCS comprises according to described current signal output primary frequency modulation actuating signal:
Receive the primary frequency modulation action information slip that network regulation issues, described primary frequency modulation action information slip comprises network regulation historical frequency data;
The historical action data of network regulation in the described primary frequency modulation action information slip and the network regulation historical frequency data among the described DCS are compared, obtain primary frequency modulation operating frequency deviate;
Described primary frequency modulation operating frequency deviate is repaired and compensated, according to the primary frequency modulation operating frequency deviate after finishing and the compensation and described current signal output primary frequency modulation actuating signal.
Preferably, in the optimization method of above-mentioned primary frequency modulation, described Steam Turbine is carried out the primary frequency modulation action according to described primary frequency modulation actuating signal, comprising:
Obtain network regulation and issue AGC instruction power target value and primary frequency modulation power;
Described AGC instruction power target value and described primary frequency modulation power are sent into PID controller among the described DCS;
Described AGC instruction power target value and primary frequency modulation power is through the scale operation of described PID controller, integral operation and the rear output steam turbine pitch instruction of differentiating, and export the instruction of described steam turbine pitch to described Steam Turbine;
Described Steam Turbine is carried out the primary frequency modulation action according to the instruction of described steam turbine pitch and described primary frequency modulation actuating signal.
Preferably, in the optimization method of above-mentioned primary frequency modulation, also comprise:
Obtain AGC instruction power target value;
Described AGC instruction power target value and described primary frequency modulation actuating signal are compared, when described AGC instruction power target value is power per liter, and described primary frequency modulation actuating signal is when requiring power to reduce, suspend the AGC power per liter, when described AGC instruction power target value for falling power, and described primary frequency modulation actuating signal is suspended AGC and is fallen power when requiring power to raise.
The embodiment of the invention also provides a kind of optimization device of primary frequency modulation, comprises that frequency transmitter and decentralized control are DCS:
Be installed in the mains frequency that electric net frequency described frequency transmitter cashier's office in a shop receives electrical network, and convert described mains frequency to current signal, it is DCS that described current signal is sent into described decentralized control;
Described DCS exports the primary frequency modulation actuating signal according to described current signal, and described primary frequency modulation actuating signal is sent to Steam Turbine, and described Steam Turbine is carried out the primary frequency modulation action according to described primary frequency modulation actuating signal.
Preferably, in the optimization device of above-mentioned primary frequency modulation, described DCS comprises:
Receiving element is used for receiving the primary frequency modulation action information slip that network regulation issues, and described primary frequency modulation action information slip comprises network regulation historical frequency data;
Comparing unit is used for the historical action data of network regulation of described primary frequency modulation action information slip and the network regulation historical frequency data among the described DCS are compared, and obtains primary frequency modulation operating frequency deviate;
The actuating signal output unit is used for described primary frequency modulation operating frequency deviate is repaired and compensated, according to the primary frequency modulation operating frequency deviate after finishing and the compensation and described current signal output primary frequency modulation actuating signal.
Preferably, in the optimization device of above-mentioned primary frequency modulation, described DCS comprises instruction fetch unit, the PID controller;
Described instruction fetch unit is used for obtaining network regulation and issues AGC instruction power target value and primary frequency modulation power, described AGC instruction power target value and described primary frequency modulation power are sent into described PID controller, described AGC instruction power target value and primary frequency modulation power are through the scale operation of described PID controller, integral operation and the rear output steam turbine pitch instruction of differentiating export the instruction of described steam turbine pitch to described Steam Turbine;
Described Steam Turbine is carried out the primary frequency modulation action according to the instruction of described steam turbine pitch and described primary frequency modulation actuating signal.
Preferably, in the optimization device of above-mentioned primary frequency modulation, described DCS comprises:
Acquiring unit is used for obtaining AGC instruction power target value;
Performance element, be used for described AGC instruction power target value and described primary frequency modulation actuating signal are compared, when described AGC instruction power target value is power per liter, and described primary frequency modulation actuating signal is when requiring power to reduce, suspend the AGC power per liter, when described AGC instruction power target value for falling power, and described primary frequency modulation actuating signal is suspended AGC and is fallen power when requiring power to raise.
What existing primary frequency modulation action was generally obtained is the Steam Turbine tach signal, obtain the primary frequency modulation actuating signal according to the Steam Turbine tach signal, yet because the accuracy of Steam Turbine tach signal is not high, meeting is so that primary frequency modulation action steps saltus degree is large, and the action accuracy rate is low.The primary frequency modulation scheme that the embodiment of the invention provides is by the mains frequency that is installed in electric net frequency frequency transmitter reception electrical network cashier's office in a shop, and convert mains frequency to current signal, mains frequency is inputted DCS with current forms, DCS is according to current signal output primary frequency modulation actuating signal, the primary frequency modulation actuating signal is sent to Steam Turbine, and Steam Turbine is carried out the primary frequency modulation action according to the primary frequency modulation actuating signal.Primary frequency modulation action appraisal standards are that netting frequently is target, and therefore, the frequency of utilization transmitter can reach the network regulation consistency of primary frequency modulation, improves the accuracy rate of primary frequency modulation action.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, the accompanying drawing that the following describes only is some embodiment that put down in writing among the application, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 provides a kind of schematic flow sheet of the optimization method of primary frequency modulation for the embodiment of the invention;
Fig. 2 provides another schematic flow sheet of the optimization method of primary frequency modulation for the embodiment of the invention;
A kind of structural representation of the primary frequency modulation optimization device that Fig. 3 provides for the embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
Referring to Fig. 1, the embodiment of the invention provides a kind of schematic flow sheet of the optimization method of primary frequency modulation, and method comprises:
Step 110: be installed in the mains frequency that electric net frequency frequency transmitter cashier's office in a shop receives electrical network, and convert mains frequency to current signal, current signal is sent into DCS(distributed control systems, scattered control system).
Frequency transmitter can comprise that three 50 ± 1Hz net the frequency transmitter of frequent rate.
Step 120:DCS exports the primary frequency modulation actuating signal according to current signal, and the primary frequency modulation actuating signal is sent to Steam Turbine, and Steam Turbine is carried out the primary frequency modulation action according to the primary frequency modulation actuating signal.
What existing primary frequency modulation action was generally obtained is the Steam Turbine tach signal, obtain the primary frequency modulation actuating signal according to the Steam Turbine tach signal, yet because the accuracy of Steam Turbine tach signal is not high, meeting is so that primary frequency modulation action steps saltus degree is large, and action accuracy is low.The primary frequency modulation scheme that the embodiment of the invention provides is by the mains frequency that is installed in electric net frequency frequency transmitter reception electrical network cashier's office in a shop, and convert mains frequency to current signal, mains frequency is inputted DCS with current forms, DCS is according to current signal output primary frequency modulation actuating signal, the primary frequency modulation actuating signal is sent to Steam Turbine, and Steam Turbine is carried out the primary frequency modulation action according to the primary frequency modulation actuating signal.Primary frequency modulation action appraisal standards are that netting frequently is target, and therefore, the frequency of utilization transmitter can reach the network regulation consistency of primary frequency modulation, improves the accuracy rate of primary frequency modulation action.
Referring to Fig. 2, the embodiment of the invention provides a kind of schematic flow sheet of the optimization method of primary frequency modulation, and method comprises:
Step 210: be installed in the mains frequency that electric net frequency frequency transmitter cashier's office in a shop receives electrical network, and convert mains frequency to current signal, it is DCS that current signal is sent into decentralized control.
Frequency transmitter can comprise that three 50 ± 1Hz net the frequency transmitter of frequent rate.
Step 220: receive the primary frequency modulation action information slip that network regulation issues, primary frequency modulation action information slip comprises network regulation historical frequency data, primary frequency modulation is moved the historical action data of network regulation in the information slip and the network regulation historical frequency data among the DCS compare, obtain primary frequency modulation operating frequency deviate.
Step 230: primary frequency modulation operating frequency deviate is repaired and compensated, export the primary frequency modulation actuating signal according to the primary frequency modulation operating frequency deviate after finishing and the compensation and current signal, and the primary frequency modulation actuating signal is sent to Steam Turbine.
Because there are differences of each urban power consumption and electricity consumption peak valley can constantly display frequency difference in the primary frequency modulation action, so that primary frequency modulation action accuracy rate descends.The embodiment of the invention is moved information slip by primary frequency modulation, primary frequency modulation action information slip comprises network regulation historical frequency data, primary frequency modulation is moved the historical action data of network regulation in the information slip and the network regulation historical frequency data among the DCS to be compared, obtain primary frequency modulation operating frequency deviate, also increased in addition the function performance piece, primary frequency modulation operating frequency deviate is repaired and compensated, eliminate areal variation, further improve primary frequency modulation actuating quantity and accuracy rate.
Step 240: obtain network regulation and issue the control of AGC(automatic generation amount, Automatic Generation Control) instruction power target value and primary frequency modulation power, AGC instruction power target value and primary frequency modulation power are sent into PID controller (Proportion Integration Differentiation among the DCS, proportional-integral derivative controller), AGC instruction power target value and primary frequency modulation power are through the scale operation of PID controller, integral operation and the rear output steam turbine pitch instruction of differentiating, and export the instruction of steam turbine pitch to Steam Turbine.
Usually Cas PID regulation is adopted in the primary frequency modulation adjustment, and logic is complicated, is subject to pining down condition many, and actual load and target load are followed the tracks of bad, and particularly actual load and target load produce deviation after the primary frequency modulation action, badly influence the primary frequency modulation qualification rate.The embodiment of the invention adopts powerful feed-forward technique to improve the primary frequency modulation qualification rate, concrete: obtain network regulation and issue AGC instruction power target value and primary frequency modulation power, AGC instruction power target value and primary frequency modulation power are sent into PID controller among the DCS, AGC instruction power target value and primary frequency modulation power are through the scale operation of PID controller, integral operation and the rear output steam turbine pitch instruction of differentiating, and export the instruction of steam turbine pitch to Steam Turbine.
Step 250: Steam Turbine is carried out the primary frequency modulation action according to the instruction of steam turbine pitch and primary frequency modulation actuating signal.
In other embodiments of the invention, the reverse locking technology of AGC peak regulation and primary frequency modulation is also proposed, comprising:
Obtain AGC instruction power target value;
AGC instruction power target value and primary frequency modulation actuating signal are compared, when AGC instruction power target value is power per liter, and the primary frequency modulation actuating signal is when requiring power to reduce, suspend the AGC power per liter, when AGC instruction power target value for falling power, and the primary frequency modulation actuating signal is suspended the AGC power per liter when requiring power to raise.
When the lifting power of primary frequency modulation actuating signal direction and AGC instruction power target value is opposite, it is qualified that primary frequency modulation is difficult to, the embodiment of the invention is used AGC peak regulation and the reverse locking technology of primary frequency modulation, AGC instruction power target value and primary frequency modulation actuating signal are compared, when AGC instruction power target value is power per liter, and the primary frequency modulation actuating signal is when requiring power to reduce, suspend the AGC power per liter, when AGC instruction power target value for falling power, and the primary frequency modulation actuating signal is suspended AGC and is fallen power when requiring power to raise.Can prevent that like this lifting power from retracting load.Treat that the primary frequency modulation action recovers normal speed later, technique can further improve the accuracy rate of primary frequency modulation action.
Referring to Fig. 3, a kind of structural representation of the primary frequency modulation optimization device that the embodiment of the invention provides, device comprise frequency transmitter 110 and distributed monitoring control system 120.
Be installed in the mains frequency that electric net frequency frequency transmitter 110 cashier's office in a shop receives electrical networks, and convert mains frequency to current signal, current signal is sent into distributed monitoring control system;
DCS exports the primary frequency modulation actuating signal according to current signal, and the primary frequency modulation actuating signal is sent to Steam Turbine, and Steam Turbine is carried out the primary frequency modulation action according to the primary frequency modulation actuating signal.
What existing primary frequency modulation action was generally obtained is the Steam Turbine tach signal, obtain the primary frequency modulation actuating signal according to the Steam Turbine tach signal, yet because the accuracy of Steam Turbine tach signal is not high, meeting is so that primary frequency modulation action steps saltus degree is large, and action accuracy is low.The primary frequency modulation scheme that the embodiment of the invention provides is by the mains frequency that is installed in electric net frequency frequency transmitter reception electrical network cashier's office in a shop, and convert mains frequency to current signal, mains frequency is inputted DCS with current forms, DCS is according to current signal output primary frequency modulation actuating signal, the primary frequency modulation actuating signal is sent to Steam Turbine, and Steam Turbine is carried out the primary frequency modulation action according to the primary frequency modulation actuating signal.Primary frequency modulation action appraisal standards are that netting frequently is target, and therefore, the frequency of utilization transmitter can reach the network regulation consistency of primary frequency modulation, improves the accuracy rate of primary frequency modulation action.
Further, DCS120 comprises:
Receiving element is used for receiving the primary frequency modulation action information slip that network regulation issues, and primary frequency modulation action information slip comprises network regulation historical frequency data;
Comparing unit is used for that primary frequency modulation is moved the historical action data of network regulation of information slip and the network regulation historical frequency data among the DCS and compares, and obtains primary frequency modulation operating frequency deviate;
The actuating signal output unit is used for primary frequency modulation operating frequency deviate is repaired and compensated, according to the primary frequency modulation operating frequency deviate after finishing and the compensation and current signal output primary frequency modulation actuating signal.
Further, DCS120 comprises instruction fetch unit, the PID controller;
Instruction fetch unit is used for obtaining network regulation and issues AGC instruction power target value and primary frequency modulation power, AGC instruction power target value and primary frequency modulation power are sent into the PID controller, AGC instruction power target value and primary frequency modulation power are through the scale operation of PID controller, integral operation and the rear output steam turbine pitch instruction of differentiating export the instruction of steam turbine pitch to Steam Turbine;
Steam Turbine is carried out the primary frequency modulation action according to the instruction of steam turbine pitch and primary frequency modulation actuating signal.
Further, DCS120 comprises:
Acquiring unit is used for obtaining AGC instruction power target value;
Performance element, be used for AGC instruction power target value and primary frequency modulation actuating signal are compared, when AGC instruction power target value is power per liter, and the primary frequency modulation actuating signal is when requiring power to reduce, suspend the AGC power per liter, when AGC instruction power target value for falling power, and the primary frequency modulation actuating signal is suspended the AGC power per liter when requiring power to raise.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the disclosed method of embodiment, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into a plurality of submodules.
One of ordinary skill in the art will appreciate that all or part of processing in above-described embodiment method is to come the relevant hardware of instruction to finish by program, described program can be stored in a kind of computer-readable recording medium.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (8)
1. the optimization method of a primary frequency modulation is characterized in that, comprising:
Be installed in the mains frequency that electric net frequency frequency transmitter cashier's office in a shop receives electrical network, and convert described mains frequency to current signal, described current signal is sent into distributed monitoring control system;
Described DCS exports the primary frequency modulation actuating signal according to described current signal, and described primary frequency modulation actuating signal is sent to Steam Turbine, and described Steam Turbine is carried out the primary frequency modulation action according to described primary frequency modulation actuating signal.
2. method according to claim 1 is characterized in that, described DCS comprises according to described current signal output primary frequency modulation actuating signal:
Receive the primary frequency modulation action information slip that network regulation issues, described primary frequency modulation action information slip comprises network regulation historical frequency data;
The historical action data of network regulation in the described primary frequency modulation action information slip and the network regulation historical frequency data among the described DCS are compared, obtain primary frequency modulation operating frequency deviate;
Described primary frequency modulation operating frequency deviate is repaired and compensated, according to the primary frequency modulation operating frequency deviate after finishing and the compensation and described current signal output primary frequency modulation actuating signal.
3. method according to claim 1 is characterized in that, described Steam Turbine is carried out the primary frequency modulation action according to described primary frequency modulation actuating signal, comprising:
Obtain network regulation and issue AGC instruction power target value and primary frequency modulation power;
Described AGC instruction power target value and described primary frequency modulation power are sent into PID controller among the described DCS;
Described AGC instruction power target value and primary frequency modulation power is through the scale operation of described PID controller, integral operation and the rear output steam turbine pitch instruction of differentiating, and export the instruction of described steam turbine pitch to described Steam Turbine;
Described Steam Turbine is carried out the primary frequency modulation action according to the instruction of described steam turbine pitch and described primary frequency modulation actuating signal.
4. method according to claim 1 is characterized in that, also comprises:
Obtain AGC instruction power target value;
Described AGC instruction power target value and described primary frequency modulation actuating signal are compared, when described AGC instruction power target value is power per liter, and described primary frequency modulation actuating signal is when requiring power to reduce, suspend the AGC power per liter, when described AGC instruction power target value for falling power, and described primary frequency modulation actuating signal is suspended AGC and is fallen power when requiring power to raise.
5. the optimization device of a primary frequency modulation is characterized in that, comprises that frequency transmitter and decentralized control are DCS:
Be installed in the mains frequency that electric net frequency described frequency transmitter cashier's office in a shop receives electrical network, and convert described mains frequency to current signal, it is DCS that described current signal is sent into described decentralized control;
Described DCS exports the primary frequency modulation actuating signal according to described current signal, and described primary frequency modulation actuating signal is sent to Steam Turbine, and described Steam Turbine is carried out the primary frequency modulation action according to described primary frequency modulation actuating signal.
6. device according to claim 5 is characterized in that, described DCS comprises:
Receiving element is used for receiving the primary frequency modulation action information slip that network regulation issues, and described primary frequency modulation action information slip comprises network regulation historical frequency data;
Comparing unit is used for the historical action data of network regulation of described primary frequency modulation action information slip and the network regulation historical frequency data among the described DCS are compared, and obtains primary frequency modulation operating frequency deviate;
The actuating signal output unit is used for described primary frequency modulation operating frequency deviate is repaired and compensated, according to the primary frequency modulation operating frequency deviate after finishing and the compensation and described current signal output primary frequency modulation actuating signal.
7. device according to claim 5 is characterized in that, described DCS comprises instruction fetch unit, the PID controller;
Described instruction fetch unit is used for obtaining network regulation and issues AGC instruction power target value and primary frequency modulation power, described AGC instruction power target value and described primary frequency modulation power are sent into described PID controller, described AGC instruction power target value and primary frequency modulation power are through the scale operation of described PID controller, integral operation and the rear output steam turbine pitch instruction of differentiating export the instruction of described steam turbine pitch to described Steam Turbine;
Described Steam Turbine is carried out the primary frequency modulation action according to the instruction of described steam turbine pitch and described primary frequency modulation actuating signal.
8. device according to claim 5 is characterized in that, described DCS comprises:
Acquiring unit is used for obtaining AGC instruction power target value;
Performance element, be used for described AGC instruction power target value and described primary frequency modulation actuating signal are compared, when described AGC instruction power target value is power per liter, and described primary frequency modulation actuating signal is when requiring power to reduce, suspend the AGC power per liter, when described AGC instruction power target value for falling power, and described primary frequency modulation actuating signal is suspended AGC and is fallen power when requiring power to raise.
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| CN104269871A (en) * | 2014-10-27 | 2015-01-07 | 国家电网公司 | Method for increasing primary frequency modulation correct action qualified rate of thermal power generation machine set |
| CN104993502A (en) * | 2015-07-31 | 2015-10-21 | 国家电网公司 | Primary frequency modulation realization method in power closed loop mode and device thereof |
| CN107346900A (en) * | 2017-06-19 | 2017-11-14 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation parameters self-tuning control method and system based on examination data |
| CN113281988A (en) * | 2021-03-31 | 2021-08-20 | 华电电力科学研究院有限公司 | Primary frequency modulation control method for steam turbine generator of double-shaft combined cycle unit |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269871A (en) * | 2014-10-27 | 2015-01-07 | 国家电网公司 | Method for increasing primary frequency modulation correct action qualified rate of thermal power generation machine set |
| CN104993502A (en) * | 2015-07-31 | 2015-10-21 | 国家电网公司 | Primary frequency modulation realization method in power closed loop mode and device thereof |
| CN104993502B (en) * | 2015-07-31 | 2017-09-01 | 国家电网公司 | Primary frequency modulation implementation method and device under a kind of power closed loop mode |
| CN107346900A (en) * | 2017-06-19 | 2017-11-14 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation parameters self-tuning control method and system based on examination data |
| CN107346900B (en) * | 2017-06-19 | 2019-09-10 | 国网山东省电力公司电力科学研究院 | Primary frequency modulation parameters self-tuning control method and system based on examination data |
| CN113281988A (en) * | 2021-03-31 | 2021-08-20 | 华电电力科学研究院有限公司 | Primary frequency modulation control method for steam turbine generator of double-shaft combined cycle unit |
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| CN103368207B (en) | 2015-09-02 |
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