WO2022089165A1

WO2022089165A1 - Method and system for frequency modulation control of new energy power station containing energy storage

Info

Publication number: WO2022089165A1
Application number: PCT/CN2021/122634
Authority: WO
Inventors: 孙锐; 李献伟; 毛建容; 彭世康; 王霞; 张萌; 张鹏
Original assignee: 许继集团有限公司; 许继电气股份有限公司; 许昌许继软件技术有限公司; 国家电网有限公司
Priority date: 2020-10-28
Filing date: 2021-10-08
Publication date: 2022-05-05
Also published as: CN112398143A

Abstract

A method and system for frequency modulation control of a new energy power station containing energy storage. The method comprises: a primary frequency modulation system of a new energy device obtaining the current frequency of a power grid in real time, and determining a frequency modulation range to which the current frequency belongs; when the current frequency is within a primary frequency modulation range, determining an own power regulation target according to the current frequency of the power grid, and performing primary frequency modulation according to the determined power regulation target; when the current frequency is within a rapid frequency modulation range, performing rapid frequency modulation according to a power regulation target issued by a station-level rapid frequency modulation system; and when the current frequency is within a normal frequency range, performing normal frequency regulation according to an AGC instruction value issued by an in-station AGC system. According to the method, by means of mutual cooperation of the new energy device body, the station-level rapid frequency modulation system and the in-station AGC system, the safety level of the frequency of a power system, especially the frequency of a sending-end power grid, is improved.

Description

A frequency regulation control method and system for a new energy power station with energy storage

technical field

The invention relates to the field of power system control, in particular to a frequency regulation control method and system for a new energy power station with energy storage.

Background technique

In recent years, the installed capacity of new energy in my country has grown rapidly, and the large-scale integration of new energy into the grid has brought new challenges to the frequency security of the power grid. With the large-scale production of UHV DC transmission projects, the DC high-power blocking will pose a serious threat to the frequency security of the power grid. Especially in the Northwest Power Grid, thermal power units generally operate in deep regulation, and the ability to down-regulate frequency is limited. In order to ensure the stable operation of the power grid, the new energy power station has the ability to actively support the power grid, so as to improve the frequency security level of the sending end power grid.

At present, most new energy power stations have the ability to receive AGC (Automatic Generation Control, automatic generation control) unified dispatching capabilities. That is, when the grid frequency is normal, the new energy power station responds to the power control command of the upper-level dispatching system through the AGC system in the station to achieve the power balance of the grid. However, the frequency of the power grid actively supported by new energy plants has not been promoted. When the frequency of the power system deviates from the target frequency after a DC commutation failure, in the sending-end power grid with a high proportion of new energy, DC blocking is likely to cause cascading failures and frequency instability. If the new energy power station cannot effectively and actively adjust the frequency, the frequency characteristics of the system will be significantly deteriorated.

SUMMARY OF THE INVENTION

(1) Purpose of the invention

The purpose of the present invention is to provide a frequency modulation control method and system for a new energy power station with energy storage. The method cooperates with the new energy equipment body and the station-level fast frequency modulation system and the AGC system in the station to improve the frequency of the power grid, especially the power grid at the sending end. safe level of frequency.

(2) Technical solutions

In order to solve the above problems, a first aspect of the present invention provides a frequency regulation control method for a new energy power station with energy storage, including:

The primary frequency regulation system of the new energy equipment obtains the current frequency of the power grid in real time, and determines the frequency regulation interval to which the current frequency belongs, and the new energy equipment includes new energy power generation equipment and new energy energy storage equipment;

When the current frequency is in the primary frequency regulation range, determine its own power regulation target according to the current frequency of the power grid, and perform primary frequency regulation according to the determined power regulation target;

When the current frequency is in the fast frequency modulation range, perform fast frequency modulation according to the power adjustment target issued by the station-level fast frequency modulation system;

When the current frequency is in the normal frequency range, the normal frequency adjustment is carried out according to the AGC command value issued by the AGC system in the station.

In a specific embodiment, the normal frequency range is 49.95Hz to 50.05Hz, and the response to the control command of the AGC system in the station is minute-level control;

The fast frequency modulation range is 49.8~49.95Hz and 50.05Hz~50.2Hz, which responds to the control command of the station-level fast frequency modulation system and is controlled in seconds.

The primary frequency modulation interval is 49.7~49.8Hz and 50.2Hz~50.3Hz, which responds to the primary frequency modulation control of the equipment itself, which is a millisecond level control.

Specifically, the determining its own target regulated power according to the current frequency of the power grid specifically includes:

Determine your own power regulation target according to the following formula (I):

Among them, Pi is the power regulation target of the new energy device i, f is the current frequency of the grid, f _di is the primary frequency regulation dead zone of the new energy device i, f _N is the rated frequency of the grid, P _Ni is the rated power of the new energy device i, δι% is the frequency modulation difference coefficient of the new energy device i, and P _0i is the output power of the new energy device i before the first frequency modulation.

Specifically, when the primary frequency modulation is performed according to the determined power adjustment target, the primary frequency modulation information is sent to the in-station AGC system and the station-level fast frequency modulation system, so that the in-station AGC system and the station-level fast frequency modulation system block their own control. The information includes the primary frequency modulation status and the primary frequency modulation power adjustment target.

Further, the frequency regulation control method for a new energy power station containing energy storage, further comprising:

The station-level fast frequency regulation system obtains the current frequency of the power grid in real time, and determines the frequency regulation range to which the current frequency belongs;

When the current frequency is in the fast frequency regulation range, the total power regulation target of the new energy power station is determined according to the following formula (II):

Among them, P is the total power regulation target of the new energy power station, f is the current frequency of the power grid, f _d is the fast frequency regulation dead zone of the new energy power station, f _N is the rated frequency of the power grid, P _N is the rated power of the power grid, and δ% is the power station’s rated power. Frequency modulation error modulation coefficient, P ₀ is the AGC command value;

Determine the power regulation target of each new energy device according to the total power regulation target of the new energy power station, and issue the power regulation target of the new energy device to the corresponding new energy device.

Specifically, the delivering the power adjustment target of the new energy equipment to the corresponding new energy equipment specifically includes:

According to the primary frequency modulation status of the new energy equipment, determine whether the new energy equipment has undergone primary frequency modulation;

If not, the power adjustment target of the new energy device is issued to the corresponding new energy device.

Specifically, if the new energy equipment enters the fast frequency modulation interval after one frequency modulation, it is determined whether the deviation between the power station's total power adjustment target and the current power station's actual total power is within the power station's frequency modulation target power dead zone range;

If so, the power adjustment target of the new energy device is issued to the corresponding new energy device.

Specifically, if the deviation between the total power adjustment target of the power station and the actual total power of the current power station is not within the power station frequency regulation target power dead zone, wait for the updated AGC command value to be obtained, and recalculate the total power adjustment of the power station according to the updated AGC command value. Target.

Specifically, when the current frequency is in the fast frequency modulation range, the station-level fast frequency modulation system sends fast frequency modulation information to the in-station AGC system, so that the in-station AGC system blocks the control of the new energy equipment.

The AGC system in the station obtains the current frequency of the power grid in real time, and determines the frequency regulation interval to which the current frequency belongs;

When the current frequency is in the normal frequency regulation range, judge whether the deviation between the total power adjustment target of the power station obtained according to the current AGC command value and the actual total power of the current power station is within the dead zone of the power station frequency regulation target power. The primary frequency regulation system of the energy equipment performs normal frequency regulation according to the ACG command value issued by the AGC system in the station;

If not, wait for the updated AGC command value to be obtained, and re-determine the total power regulation target of the power station according to the updated AGC command value.

A second aspect of the present application provides a frequency modulation control system for a new energy power station with energy storage, including an in-station AGC system, a station-level fast frequency modulation system and a new energy equipment body, the new energy power station frequency modulation control system with energy storage for executing the control method described in any one of the above.

(3) Beneficial effects

The above-mentioned technical scheme of the present invention has the following beneficial technical effects:

The control method provided by the present invention divides the frequency of the power grid into three control intervals, the primary frequency regulation system of new energy equipment, the station-level fast frequency regulation system and the AGC system in the station cooperate with each other, and the corresponding control strategy is determined according to the corresponding control intervals. It is finally executed by new energy equipment, which improves the safety level of grid frequency, especially the frequency of the sending end grid.

Description of drawings

FIG. 1 is a flowchart of a frequency regulation control method for a new energy power station with energy storage provided by an embodiment of the present invention.

2 is a schematic diagram of frequency regulation control of a new energy power station with energy storage provided by an embodiment of the present invention;

3 is a schematic diagram of information interaction of a frequency modulation control system of a new energy power station with energy storage provided by the present invention;

4 is a flowchart of a primary frequency modulation strategy provided by a specific embodiment of the present invention;

FIG. 5 is a flowchart of a fast frequency modulation strategy provided by a specific embodiment of the present invention;

FIG. 6 is a flowchart of an AGC control strategy provided by a specific embodiment of the present invention.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the specific embodiments and the accompanying drawings. It should be understood that these descriptions are exemplary only and are not intended to limit the scope of the invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts of the present invention.

Referring to FIG. 1, the present invention provides a frequency regulation control method for a new energy power station containing energy storage, including:

Step 101: the primary frequency modulation system of the new energy equipment acquires the current frequency of the power grid in real time, and determines the frequency modulation interval to which the current frequency belongs, and the new energy equipment includes new energy power generation equipment and new energy energy storage equipment;

Step 102: when the current frequency is in the primary frequency regulation interval, determine its own power regulation target according to the current frequency of the power grid, and perform primary frequency regulation according to the determined power regulation target; when the current frequency is in the fast frequency regulation interval, according to the station-level fast frequency regulation system The power adjustment target issued by the station performs fast frequency regulation; when the current frequency is in the normal frequency range, the normal frequency adjustment is carried out according to the AGC command value issued by the AGC system in the station.

Specifically, in this application, the frequency regulation control method is especially suitable for the sending end power grid with a high proportion of new energy and a high risk of frequency instability, but the control method is still applicable to the receiving end power grid, and the control objects are in addition to wind turbines and photovoltaic inverters. It can also increase the control of flexible loads. The AGC command value is determined by the in-station AGC system according to the power control command (ie, the AGC command) of the upper-level scheduling system. The power regulation target refers to the target power value of the frequency modulation control. The primary frequency modulation system of new energy equipment refers to the primary frequency modulation system of the new energy equipment itself.

Specifically, the determining of its own power regulation target according to the current frequency of the power grid specifically includes:

Specifically, when the primary frequency modulation is performed according to the determined power adjustment target, the primary frequency modulation information is sent to the in-station AGC system and the station-level fast frequency modulation system, so that the in-station AGC system and the station-level fast frequency modulation system block their own control. The information includes the primary frequency modulation status and the primary frequency modulation power adjustment target. Further, when the first frequency modulation is over, the first frequency modulation state will be released to the in-station AGC system and the station-level fast frequency modulation system.

By sending the primary frequency modulation information to the in-station AGC system and the station-level fast frequency modulation system, while the two block their own control, they can determine whether to take over the subsequent control according to the primary frequency modulation control change in the subsequent control process, so that the entire control process is smooth and consistent. , which can further ensure the refinement of frequency modulation. At the same time, it can be ensured that the entire control system will not have multiple different control targets at the same time.

Step 201: the station-level fast frequency regulation system acquires the current frequency of the power grid in real time, and determines the frequency regulation interval to which the current frequency belongs;

Step 202: When the current frequency is in the fast frequency regulation interval, determine the total power regulation target of the new energy power station according to the following formula (II):

Step 203: Determine the power regulation target of each new energy device according to the total power regulation target of the new energy power station, and distribute the power regulation target of the new energy device reasonably to the corresponding new energy device.

Specifically, the reasonable distribution of the power adjustment target of the new energy equipment to the corresponding new energy equipment specifically includes:

Step a: According to the change of the primary frequency modulation state of the new energy equipment, determine whether the new energy equipment has undergone primary frequency modulation;

If so, go to step b, if not, go to step c in sequence.

Step b: it is then judged whether the deviation between the total power regulation target of the power station and the actual total power of the current power station is within the dead zone range of the power station frequency regulation target power. If yes, execute step c; if not, wait for the next AGC command to be scheduled, obtain the updated AGC command value, and re-determine the total power adjustment target of the power station according to the updated AGC command value, and return to step b; in this application, the power station The FM target power dead zone refers to the power range determined by the power adjustment target deviation between this and the last FM control.

Step c: The power adjustment target of the new energy equipment is issued to the corresponding new energy equipment, and the fast frequency modulation control is performed;

Specifically, the station-level fast frequency regulation system can determine the power regulation target of the new energy equipment according to the characteristics and configuration of the controlled power generation, energy storage and other equipment. When the maximum SOC is configured, first adjust the energy storage equipment. If there is no energy storage or the energy storage has no ability, then suppress the output of the new energy power generation equipment; when the power generation needs to be increased, first increase the power generation power of the new energy power generation equipment. When the power generation capacity increases, the energy storage equipment is adjusted; when multiple similar new energy power generation equipment is adjustable, the target power is allocated in the same proportion according to its theoretical power generation power; when multiple energy storage equipment is adjustable, the target power is allocated in the same proportion according to the remaining SOC adjustable range. power. The specific allocation method is not limited in this application.

When the current frequency is not in the fast FM range, the fast FM control state is released, and the station-level fast FM system has no action.

The AGC system in the station, the station-level fast frequency regulation control system and the primary frequency regulation system of the new energy equipment body perform corresponding frequency regulation and control according to the interval where the power grid f is located. The three cooperate with each other. When the frequency is adjusted from one regulation interval to another control interval, In addition to the signal coordination between systems, the target power taken over by the control of the subsequent system and the current actual total power must be within the dead zone range to ensure that the adjustment direction of the f deviation is consistent with the previous control to prevent the control from oscillating.

Further, when the current frequency is in the fast frequency modulation range, the station-level fast frequency modulation system sends fast frequency modulation information to the in-station AGC system, so that the in-station AGC system blocks the control of the new energy equipment.

Step 301: The in-station AGC system acquires the current frequency of the power grid in real time, and determines the frequency regulation interval to which the current frequency belongs; when the current frequency is in the normal frequency regulation interval, step 302 is performed,

Step 302: Determine whether the deviation of the total power adjustment target of the power station obtained according to the current AGC command value and the actual total power of the current power station is within the dead zone range of the power station frequency regulation target power, and if so, go to step 303:

Step 303: Release the AGC blocking, so that the primary frequency regulation system of the new energy equipment performs normal frequency regulation according to the ACG command value issued by the AGC system in the station;

Further, if not, wait for the updated AGC command value to be acquired, and execute step 302 .

Further, when the current frequency is in the normal frequency modulation interval, before step 302 is executed, the method further includes:

According to the primary frequency modulation information and the fast frequency modulation information, it is determined whether the primary frequency modulation or the fast frequency modulation has been performed, and if otherwise, step 303 is performed, and if so, step 302 is performed.

As shown in FIG. 2 , the present invention also provides a frequency modulation control system for a new energy power station with energy storage, including an in-station AGC system, a station-level fast frequency modulation system and a new energy equipment body. The new energy power station with energy storage for frequency modulation The control system is used to execute any one of the control methods described above. FIG. 3 is a schematic diagram of the information interaction of the system.

The following are specific embodiments of frequency modulation control using the control system provided by the present invention:

Referring to Figures 2 to 6, a method for frequency regulation control of a new energy power station with energy storage includes:

The frequency modulation control structure of the new energy power station with energy storage consists of two layers: the first layer is the equipment layer, that is, the primary frequency modulation function of the fan, photovoltaic inverter, and energy storage converter of the new energy power station. It is realized by means of inertia, reserve reserve or configuration of energy storage, so that the output of new energy equipment has the droop control characteristics shown in formula (I);

The second layer is the coordination control layer, that is, the AGC control layer and the station-level fast frequency modulation control layer, which are controlled according to the frequency range of the power grid.

Referring to Figures 2 and 4, frequency regulation control strategy 1 of a new energy power station with energy storage:

When the AGC command changes, the AGC sub-station (that is, the AGC system in the station) receives the dispatching AGC command, and judges whether the current frequency of the power grid is in the normal frequency range, and if so, judges whether the AGC control is blocked. If the AGC control is locked, determine whether the fast frequency modulation and primary frequency modulation are unlocked. If unlocked, determine whether the deviation between the target adjustment frequency determined according to the AGC command value and the actual total power of the current power station is within the power station frequency modulation target power dead zone. If so, release the AGC Control the blocking and continue the normal AGC control strategy, otherwise the AGC control blocking will continue to wait for the next AGC command update (the purpose is to prevent the power control value from returning to the previous AGC control target value, causing frequency oscillation).

Strategy 2: As shown in Figures 3 and 5, when the grid frequency is in the fast frequency regulation control range, the station-level fast frequency regulation must first determine whether the new energy equipment has undergone a frequency regulation control. Whether the deviation between the adjustment target and the actual total power of the current power station is within the power station's frequency regulation target power dead zone, if so, send the corresponding power regulation target to the new energy equipment to perform fast frequency regulation control, and send the fast frequency regulation status to the AGC system , to block the AGC control, otherwise continue to wait for the next AGC command to be scheduled;

Strategy 3: Referring to Figures 3 and 6, when the grid frequency is in the primary frequency regulation range, the primary frequency regulation system of the new energy power generation equipment determines the power regulation target according to the collected current frequency, and makes the current output perform its own droop control according to the determined power regulation target. The command realizes the primary frequency modulation control, and sends the primary frequency modulation status to the in-station AGC system and the station-level fast frequency modulation system. When the frequency is not in the primary frequency regulation range, the primary frequency regulation system of the new energy power generation equipment releases the primary frequency regulation state, and in the next control state, if the frequency directly enters the station-level fast frequency regulation range, the fast frequency regulation system command is executed. If the deviation between the total power regulation target of the current power station and the actual total power of the current power station is within the dead zone of the power station frequency regulation target power, the station-level fast frequency regulation system can continue the frequency regulation control; The adjustment target is within the dead zone of frequency regulation of the power station. In the next round of control state, if the frequency directly enters the AGC control range, the AGC lock is released and the AGC system command is executed. Among them, the deviation between the total power adjustment target of the power station determined by the next AGC command value and the actual total power of the current power station is the frequency regulation target power of the power station. The AGC lock is released within the dead zone range and the AGC system command is executed.

As will be appreciated by those skilled in the art, the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block in the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to the processor of a general purpose computer, special purpose computer, embedded processor or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a flow or flow of a flowchart and/or a block or blocks of a block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions The apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

These computer program instructions can also be loaded on a computer or other programmable data processing device to cause a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process such that The instructions provide steps for implementing the functions specified in the flow or blocks of the flowcharts and/or the block or blocks of the block diagrams.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention can still be Modifications or equivalent replacements are made to the specific embodiments of the present invention, and any modifications or equivalent replacements that do not depart from the spirit and scope of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

A frequency regulation control method for a new energy power station with energy storage, characterized in that it includes:

The primary frequency regulation system of the new energy equipment obtains the current frequency of the power grid in real time, and determines the frequency regulation interval to which the current frequency belongs, and the new energy equipment includes new energy power generation equipment and new energy energy storage equipment;

When the current frequency is in the primary frequency regulation range, determine its own power regulation target according to the current frequency of the power grid, and perform primary frequency regulation according to the determined power regulation target;

When the current frequency is in the fast frequency modulation range, perform fast frequency modulation according to the power adjustment target issued by the station-level fast frequency modulation system;

When the current frequency is in the normal frequency range, the normal frequency adjustment is carried out according to the AGC command value issued by the AGC system in the station.
The frequency regulation control method for a new energy power station with energy storage according to claim 1, wherein the determining its own power regulation target according to the current frequency of the power grid specifically includes:

Determine your own power regulation target according to the following formula (I):

Among them, Pi is the power regulation target of the new energy device i, f is the current frequency of the grid, f di is the primary frequency regulation dead zone of the new energy device i, f N is the rated frequency of the grid, P Ni is the rated power of the new energy device i, δι% is the frequency modulation difference coefficient of the new energy device i, and P 0i is the output power of the new energy device i before the first frequency modulation.
The frequency regulation control method of a new energy power station with energy storage according to claim 1, wherein when primary frequency regulation is performed according to the determined power regulation target, the primary frequency regulation information is sent to the in-station AGC system and the station-level fast frequency regulation system, In order to make the in-station AGC system and the station-level fast frequency modulation system to block their own control, the primary frequency modulation information includes the primary frequency modulation status and the primary frequency modulation power adjustment target.
The frequency regulation control method for a new energy power station containing energy storage according to claim 3, further comprising:

The station-level fast frequency regulation system obtains the current frequency of the power grid in real time, and determines the frequency regulation range to which the current frequency belongs;

When the current frequency is in the fast frequency regulation range, the total power regulation target of the new energy power station is determined according to the following formula (II):

Among them, P is the total power regulation target of the new energy power station, f is the current frequency of the power grid, f d is the fast frequency regulation dead zone of the new energy power station, f N is the rated frequency of the power grid, P N is the rated power of the power grid, and δ% is the power station’s rated power. Frequency modulation error modulation coefficient, P 0 is the AGC command value;

Determine the power regulation target of each new energy device according to the total power regulation target of the new energy power station, and issue the power regulation target of the new energy device to the corresponding new energy device.
The frequency regulation control method for a new energy power station with energy storage according to claim 4, wherein the delivering the power regulation target of the new energy equipment to the corresponding new energy equipment specifically includes:

According to the primary frequency modulation status of the new energy equipment, determine whether the new energy equipment has undergone primary frequency modulation;

If not, the power adjustment target of the new energy device is issued to the corresponding new energy device.
The frequency regulation control method for a new energy power station with energy storage according to claim 5, wherein if the new energy equipment enters the fast frequency regulation interval after one frequency regulation, the deviation between the total power adjustment target of the power station and the actual total power of the current power station is judged Whether it is within the dead zone range of the power station frequency regulation target power;

If so, the power adjustment target of the new energy device is issued to the corresponding new energy device.
The frequency regulation control method for a new energy power station containing energy storage according to claim 6, wherein,

If the deviation between the total power regulation target of the power station and the actual total power of the current power station is not within the dead zone of the power station frequency regulation target power, wait for the updated AGC command value to be obtained, and recalculate the total power regulation target of the power station according to the updated AGC command value.
The frequency regulation control method for a new energy power station with energy storage according to claim 4, wherein when the current frequency is in the fast frequency regulation interval, the station-level fast frequency regulation system sends fast frequency regulation information to the in-station AGC system, so that the in-station AGC The system locks the control of the new energy equipment.
The frequency regulation control method for a new energy power station containing energy storage according to claim 8, further comprising:

The AGC system in the station obtains the current frequency of the power grid in real time, and determines the frequency regulation interval to which the current frequency belongs;

When the current frequency is in the normal frequency regulation range, judge whether the deviation between the total power adjustment target of the power station obtained according to the current AGC command value and the actual total power of the current power station is within the dead zone of the power station frequency regulation target power. The primary frequency regulation system of the energy equipment performs normal frequency regulation according to the ACG command value issued by the AGC system in the station;

If not, wait for the updated AGC command value to be obtained, and re-determine the total power regulation target of the power station according to the updated AGC command value.
A frequency modulation control system for a new energy power station with energy storage, characterized in that it includes an in-station AGC system, a station-level fast frequency modulation system and new energy equipment, and the frequency modulation control system for a new energy power station with energy storage is used to implement claim 1 The control method according to any one of to 9.