Thermal power flywheel energy storage dynamic scheduling operation system and thermal power flywheel energy storage system

Abstract

The invention relates to the technical field of electric frequency modulation and peak regulation, and discloses a thermal power flywheel energy storage dynamic scheduling operation system and a thermal power flywheel energy storage system. The dispatching operation system comprises a cooperative control device, a hybrid energy storage control device, a flywheel energy storage sub-control device, an electrochemical energy storage sub-control device and a thermal power generating unit control device, and the cooperative control device is used for receiving a frequency modulation and peak regulation instruction, an energy storage charge state value, an energy storage frequency deviation and an energy storage power deviation; determining a thermal power generating unit control strategy and an energy storage operation control strategy according to the energy storage charge state value, the energy storage frequency deviation and the energy storage power deviation, outputting a unit output instruction according to the frequency modulation and peak regulation instruction and the thermal power generating unit control strategy, and outputting a hybrid energy storage output instruction according to the frequency modulation and peak regulation instruction and the energy storage operation control strategy; the hybrid energy storage control device is used for controlling the flywheel energy storage sub-control device and the electrochemical energy storage sub-control device to execute corresponding operation according to the hybrid energy storage output instruction; the thermal power generating unit control device is used for controlling a unit executing mechanism to execute corresponding operation according to the unit output instruction. Therefore, the frequency modulation and peak regulation pressure of the power grid can be relieved, and the retentivity of the hybrid energy storage state of charge (SOC) and the stability of the system frequency are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of thermal power frequency modulation and peak regulation technology, and particularly relates to a thermal power flywheel energy storage dynamic scheduling operation system and a thermal power flywheel energy storage system. BACKGROUND

[0002] At present, a new power system with a high proportion of new energy has taken shape, and the importance of thermal power in the new power system is also increasing. Due to the instability and volatility of new energy power generation, the importance of thermal power to the stability of the power system begins to stand out. Behind this is the change of the role of thermal power, that is, as a stable and controllable power source, thermal power is changing from a main power source to a regulating power source and becoming the main provider of auxiliary services in the power system.

[0003] However, the frequency modulation and peak regulation performance of thermal power is not ideal by relying on the flexibility of the unit itself, and the thermal power cannot directly participate in the auxiliary services of the power system. SUMMARY

[0004] The present application provides a thermal power flywheel energy storage dynamic scheduling operation system and a thermal power flywheel energy storage system, which can solve the technical problems in the prior art.

[0005] The present application provides a thermal power flywheel energy storage dynamic scheduling operation system, wherein the system comprises a cooperative control device, a hybrid energy storage control device, a flywheel energy storage sub-control device, an electrochemical energy storage sub-control device and a thermal power unit control device, wherein

[0006] The cooperative control device is configured to receive a frequency modulation and peak regulation instruction, an energy storage charge state value, an energy storage frequency deviation and an energy storage power deviation, determine a thermal power unit control strategy and an energy storage operation control strategy according to the energy storage charge state value, the energy storage frequency deviation and the energy storage power deviation, output a unit output instruction according to the frequency modulation and peak regulation instruction and the thermal power unit control strategy, and output a hybrid energy storage output instruction according to the frequency modulation and peak regulation instruction and the energy storage operation control strategy;

[0007] The hybrid energy storage control device is configured to control the flywheel energy storage sub-control device and the electrochemical energy storage sub-control device to perform corresponding operations according to the hybrid energy storage output instruction;

[0008] The thermal power unit control device is configured to control the unit actuator to perform corresponding operations according to the unit output instruction.

[0009] Preferably, determining the thermal power unit control strategy and the energy storage operation control strategy according to the energy storage charge state value, the energy storage frequency deviation and the energy storage power deviation comprises:

[0010] determining whether the energy storage charge state value is within a predetermined range;

[0011] In a case where the energy storage charge state value is out of a predetermined range, the thermal power generating unit control strategy is determined as thermal power generating unit alone output, and the energy storage operation control strategy is determined as energy storage no output.

[0012] In a case where the energy storage charge state value is in a predetermined range, it is judged whether the energy storage frequency deviation is greater than or equal to a predetermined frequency value and whether the energy storage power deviation is greater than or equal to a predetermined power value, and the thermal power generating unit control strategy and the energy storage operation control strategy are determined according to a first judgment result.

[0013] Preferably, determining the thermal power generating unit control strategy and the energy storage operation control strategy according to the first judgment result comprises:

[0014] In a case where the energy storage frequency deviation is greater than or equal to the predetermined frequency value or the energy storage power deviation is greater than or equal to the predetermined power value, it is judged whether the frequency modulation and peak regulation power demand is greater than the maximum output power of the energy storage, and the thermal power generating unit control strategy and the energy storage operation control strategy are determined according to a second judgment result.

[0015] In a case where the energy storage frequency deviation is less than the predetermined frequency value and the energy storage power deviation is less than the predetermined power value, the thermal power generating unit control strategy is determined as thermal power generating unit alone output, and the energy storage operation control strategy is determined as energy storage no output.

[0016] Preferably, determining the thermal power generating unit control strategy and the energy storage operation control strategy according to the second judgment result comprises:

[0017] In a case where the frequency modulation and peak regulation power demand is greater than the maximum output power of the energy storage, the thermal power generating unit control strategy is determined as thermal power generating unit output, and the energy storage operation control strategy is determined as energy storage output.

[0018] In a case where the frequency modulation and peak regulation power demand is less than or equal to the maximum output power of the energy storage, the thermal power generating unit control strategy is determined as thermal power generating unit no output, and the energy storage operation control strategy is determined as energy storage alone output.

[0019] Preferably, the system further comprises a data acquisition terminal, which is used to acquire the energy storage charge state value, the energy storage frequency deviation and the energy storage power deviation.

[0020] The application also provides a thermal power flywheel energy storage system, wherein the system comprises a thermal power generating unit, a flywheel energy storage device, an electrochemical energy storage device and the above-mentioned thermal power flywheel energy storage dynamic scheduling operation system.

[0021] Preferably, the thermal power generating unit, the flywheel energy storage device, the electrochemical energy storage device and the thermal power flywheel energy storage dynamic scheduling operation system are located at an AC bus side.

[0022] Through the technical solution, the mixed energy storage frequency modulation double-layer control strategy can be distributed based on the frequency modulation and peak regulation demand, the demand distribution capability of the thermal power unit combined frequency modulation and peak regulation system is improved, the frequency modulation and peak regulation pressure of the power grid is obviously relieved, the retention of the mixed energy storage state of charge (SOC) and the stability of the system frequency are improved, the mixed energy storage can be applied to the power spot transaction and the power grid frequency modulation and peak regulation auxiliary service, and economic operation is realized. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings, which are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. It is readily apparent to one skilled in the art that the accompanying drawings are merely illustrative of some embodiments of the application and that numerous other embodiments can be derived from the accompanying drawings without departing from the spirit and scope of the application.

[0024] Figure 1 A thermal power flywheel energy storage dynamic scheduling operation system principle diagram according to an embodiment of the application is shown;

[0025] Figure 2 A thermal power flywheel energy storage dynamic scheduling operation method flow chart according to an embodiment of the application is shown;

[0026] Figure 3 A thermal power flywheel energy storage system topological structure schematic diagram according to an embodiment of the application is shown. DETAILED DESCRIPTION

[0027] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0028] It should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should also be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a presence of the features, steps, operations, devices, components and / or combinations thereof.

[0029] The application is not limited by the relative positioning of parts and steps, numerical expressions, and numerical values set forth in these embodiments unless specifically stated otherwise. It should also be understood that the dimensions of the various parts shown in the drawings are not drawn to scale for ease of illustration. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered part of the specification if appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0030] Figure 1 A schematic diagram of a thermal power flywheel energy storage dynamic scheduling operation system according to an embodiment of the application is shown.

[0031] As shown in Figure 1 An embodiment of the application provides a thermal power flywheel energy storage dynamic scheduling operation system, wherein the system comprises a cooperative control device, a hybrid energy storage control device, a flywheel energy storage sub-control device, an electrochemical energy storage sub-control device, and a thermal power unit control device, wherein

[0032] The cooperative control device is configured to receive frequency modulation and peak shaving instructions, energy storage state of charge values, energy storage frequency deviations, and energy storage power deviations, determine a thermal power unit control strategy and an energy storage operation control strategy according to the energy storage state of charge values, the energy storage frequency deviations, and the energy storage power deviations, output unit output instructions according to the frequency modulation and peak shaving instructions and the thermal power unit control strategy, and output hybrid energy storage output instructions according to the frequency modulation and peak shaving instructions and the energy storage operation control strategy.

[0033] The frequency modulation and peak shaving instructions comprise frequency modulation and peak shaving power demand values.

[0034] The hybrid energy storage control device is configured to control the flywheel energy storage sub-control device and the electrochemical energy storage sub-control device to perform corresponding operations according to the hybrid energy storage output instructions.

[0035] The thermal power unit control device is configured to control a unit actuator to perform corresponding operations according to the unit output instructions.

[0036] That is, the frequency modulation and peak shaving instructions, the thermal power generating unit, the flywheel and the electrochemical energy storage output situation, and the state of charge (SOC) of the energy storage system can be comprehensively judged, and the frequency modulation and peak shaving output instructions of the thermal power generating unit and the energy storage device are respectively issued. The frequency modulation and peak shaving control loop of the thermal power generating unit / energy storage device is the bottom layer control strategy of the coordinated control system. After the thermal power generating unit / energy storage device receives the output instruction, the corresponding execution component is controlled to act to meet the output requirement issued by the upper layer control strategy.

[0037] Through the above technical solution, the mixed energy storage frequency modulation and peak shaving double-layer control strategy can be allocated based on the frequency modulation and peak shaving demand, the demand allocation capability of the thermal power generating unit combined frequency modulation and peak shaving system is improved, thereby the frequency modulation and peak shaving pressure of the power grid is obviously relieved, the retention of the mixed energy storage state of charge (SOC) and the stability of the system frequency are improved, and the mixed energy storage can be applied to the power spot transaction and the power grid frequency modulation and peak shaving auxiliary service, and economic operation is realized.

[0038] Further referring to Figure 1 The unit frequency modulation and peak shaving control loop includes a thermal power control device, a unit execution mechanism and a unit output feedback loop to realize the unit frequency modulation and peak shaving output. The mixed energy storage frequency modulation and peak shaving control loop includes a mixed energy storage control device, a flywheel energy storage sub-control device and an electrochemical energy storage sub-control device, and the above control devices jointly act to realize the frequency modulation and peak shaving output of the mixed energy storage. The mixed energy storage control device is used for power instruction allocation of the flywheel energy storage device and the electrochemical energy storage device, and simultaneously realizes SOC power monitoring of the flywheel energy storage device and the electrochemical energy storage device. The flywheel unit sub-control device is used for executing the power instruction issued by the mixed energy storage control device, realizing the charge and discharge control of the flywheel energy storage motor, and realizing the SOC self-management of a single flywheel. The electrochemical energy storage device sub-controller is used for executing the power instruction issued by the mixed energy storage control device, realizing the charge and discharge control of the electrochemical energy storage, and realizing the SOC self-management of the electrochemical energy storage.

[0039] The core function of the mixed energy storage frequency modulation and peak shaving control loop is to execute the power instruction (mixed energy storage output instruction) issued by the top layer coordinated control strategy, complete the charge and discharge control of the mixed energy storage, and meet the grid-connected power quality requirements. In addition to the above core function, the mixed energy storage control device has the power allocation and SOC management functions, which can be selected to be enabled or shielded according to the control authority division of the power plant frequency modulation and peak shaving dispatching center.

[0040] After the thermal power generating unit receives the grid dispatching instruction, if the total power demand exceeds the mixed energy storage output range, the thermal power generating unit can independently output to adjust and respond. After negative feedback adjustment, the grid-side power gap demand is met. For the purpose of simplicity, it will not be described here.

[0041] According to one embodiment of the present application, the determination of the thermal power unit control strategy and the energy storage operation control strategy according to the energy storage charge state value, the energy storage frequency deviation and the energy storage power deviation comprises:

[0042] determining whether the energy storage charge state value is within a predetermined range;

[0043] in the case that the energy storage charge state value is out of the predetermined range, determining the thermal power unit control strategy as thermal power unit alone output and determining the energy storage operation control strategy as energy storage no output;

[0044] in the case that the energy storage charge state value is within the predetermined range, determining whether the energy storage frequency deviation is greater than or equal to a predetermined frequency value and whether the energy storage power deviation is greater than or equal to a predetermined power value, and determining the thermal power unit control strategy and the energy storage operation control strategy according to the first determination result.

[0045] According to one embodiment of the present application, the determination of the thermal power unit control strategy and the energy storage operation control strategy according to the first determination result comprises:

[0046] in the case that the energy storage frequency deviation is greater than or equal to the predetermined frequency value or the energy storage power deviation is greater than or equal to the predetermined power value, determining whether the frequency modulation and peak shaving power demand is greater than the maximum energy storage output power, and determining the thermal power unit control strategy and the energy storage operation control strategy according to the second determination result;

[0047] in the case that the energy storage frequency deviation is less than the predetermined frequency value and the energy storage power deviation is less than the predetermined power value, determining the thermal power unit control strategy as thermal power unit alone output and determining the energy storage operation control strategy as energy storage no output.

[0048] According to one embodiment of the present application, the determination of the thermal power unit control strategy and the energy storage operation control strategy according to the second determination result comprises:

[0049] in the case that the frequency modulation and peak shaving power demand is greater than the maximum energy storage output power, determining the thermal power unit control strategy as thermal power unit output and determining the energy storage operation control strategy as energy storage output;

[0050] in the case that the frequency modulation and peak shaving power demand is less than or equal to the maximum energy storage output power, determining the thermal power unit control strategy as thermal power unit no output and determining the energy storage operation control strategy as energy storage alone output.

[0051] According to one embodiment of the present application, the system further comprises a data acquisition terminal, which is configured to acquire the energy storage charge state value, the energy storage frequency deviation and the energy storage power deviation.

[0052] The following will be described in combination with Figure 2The control flow of the application is described. After the operation of the thermal power flywheel energy storage frequency modulation and peak shaving system, the SOC of the energy storage system and the frequency deviation of the power grid can be calculated and analyzed first. When it is determined that the SOC of the energy storage system does not meet the input requirements (SOC max or SOC min , that is, greater than the maximum value of SOC or less than the minimum value of SOC), the hybrid energy storage system does not output, and the coordinated control device issues a flywheel output instruction of zero to the hybrid energy storage control device. When it is determined that the SOC of the energy storage system meets the input requirements (SOC min ≤ SOC ≤ SOC max ), and the frequency deviation Δf is too large (for example, |Δf|≥0.033 Hz) or the power deviation ΔP is too large (for example, |ΔP|≥10%P N , where P N is the rated power of the unit), it is further determined whether the frequency modulation and peak shaving power demand is greater than the maximum output power of the energy storage, and if the condition is met, the large disturbance mode is entered, and the thermal power unit and the energy storage device jointly output (fire storage coordination); if the condition is not met, the small disturbance frequency modulation mode is entered, and the energy storage device outputs alone, and finally the energy storage device frequency modulation and peak shaving energy storage output instruction value is given.

[0053] The SOC power management strategy of the hybrid energy storage generally includes two aspects: one is the SOC emergency recovery when the SOC exceeds the upper and lower limits; the other is the SOC self-recovery, which refers to the recovery behavior of approaching the SOC region with the strongest bidirectional charging and discharging capability (for example, SOCop_min≤SOC≤SOCop_max) when the SOC is within the normal range. The SOC emergency recovery can protect the energy storage device from damage caused by overcharging and overdischarging, and the SOC self-recovery can improve the SOC retention rate to a certain extent when the system has no frequency modulation and peak shaving task. The above two SOC management strategies are SOC management strategies in the non-frequency modulation and peak shaving state. To further improve the SOC retention rate of the hybrid energy storage, the SOC self-recovery power management strategy is added when the system is in the frequency modulation and peak shaving state.

[0054] Among them, the system frequency modulation and peak shaving demand (i.e., the frequency modulation and peak shaving power demand value) can be solved in advance by a fuzzy control algorithm: according to the changes of the frequency deviation Δf and the two input variables, a best system frequency modulation and peak shaving demand value is obtained according to the given fuzzy rules (the existing technical method can be used, which is not limited by the application). When the coordinated control device solves the power distribution of the hybrid energy storage system using the genetic algorithm, the independent variables of the objective function are the power outputs of the battery energy storage and the flywheel energy storage. Under the premise of meeting the given constraint conditions, a set of optimal solutions of the energy storage power distribution that minimizes the system frequency deviation is obtained by iterative optimization.

[0055] The thermal power flywheel energy storage dynamic scheduling operation system can participate in power spot trading, combine real-time background scheduling center regulation and control, coordinate and control the active power output of the thermal power generating unit and the hybrid energy storage to quickly respond, and can provide frequency modulation and peak shaving auxiliary services to the superior power grid to obtain additional income.

[0056] As shown in Figure 3 The embodiment of the present application also provides a thermal power flywheel energy storage system, wherein the system comprises a thermal power generating unit, a flywheel energy storage device, an electrochemical energy storage device and the thermal power flywheel energy storage dynamic scheduling operation system.

[0057] According to an embodiment of the present application, the thermal power generating unit, the flywheel energy storage device, the electrochemical energy storage device and the thermal power flywheel energy storage dynamic scheduling operation system are located at the AC bus side.

[0058] That is, the thermal power flywheel energy storage system comprises a thermal power generating unit, a flywheel energy storage device, an electrochemical energy storage device, a data acquisition terminal, a collaborative control device (coordination controller), a hybrid energy storage control device, a flywheel energy storage sub-control device, an electrochemical energy storage sub-control device and a thermal power generating unit control device. The flywheel energy storage sub-control device, the electrochemical energy storage sub-control device and the thermal power generating unit control device can be separately arranged or integrated with the corresponding devices. Figure 3 It can be seen that when the power grid is regulated and load disturbance occurs, the supply and demand balance of the active power on the AC bus will be broken, resulting in a deviation of the power grid frequency. According to the power grid regulation load data, the operation state of the thermal power generating device, the flywheel energy storage device and the electrochemical energy storage device, hierarchical optimization can be performed to calculate the total output required for frequency modulation and peak shaving of the system, and the thermal power generating unit output, the electrochemical energy storage and the flywheel energy storage output can be allocated according to the actual situation of each part to realize the optimal allocation of the power and frequency of the thermal power flywheel energy storage system, thereby improving the frequency modulation and peak shaving performance of the system.

[0059] As can be seen from the above embodiment, the system of the present application can use a control algorithm to optimize the frequency modulation and peak shaving output of the thermal power generating unit and the hybrid energy storage according to the changes of the collected power grid frequency deviation and power deviation, and consider the different frequency modulation and peak shaving capabilities of the power type energy storage and the energy type energy storage, and combine the residual power of the power type energy storage and the energy type energy storage in the hybrid energy storage to perform weighted calculation on the output of the three to realize reasonable allocation of the output of the thermal power hybrid energy storage system, so that the power grid can be provided with frequency modulation and peak shaving auxiliary services while meeting the power demand of the power grid, and the power supply stability of the new power system is improved.

[0060] In the description of the application, it should be understood that the orientation words such as "front, back, upper, lower, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship are generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0061] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0062] In addition, it should be noted that the use of "first", "second" and the like to define parts only facilitates the differentiation of corresponding parts, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the scope of protection of the application.

[0063] The above only describes the preferred embodiments of the application and is not intended to limit the application. For those skilled in the art, the application can have various modifications and changes. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A dynamic scheduling and operation system for thermal power flywheel energy storage, characterized in that, The system includes a collaborative control device, a hybrid energy storage control device, a flywheel energy storage sub-control device, an electrochemical energy storage sub-control device, and a thermal power unit control device, among which, The collaborative control device is used to receive frequency regulation and peak shaving commands, energy storage charge status values, energy storage frequency deviations and energy storage power deviations, determine the thermal power unit control strategy and energy storage operation control strategy based on the energy storage charge status values, energy storage frequency deviations and energy storage power deviations, output the unit output command based on the frequency regulation and peak shaving commands and the thermal power unit control strategy, and output the hybrid energy storage output command based on the frequency regulation and peak shaving commands and the energy storage operation control strategy. The hybrid energy storage control device is used to control the flywheel energy storage sub-control device and the electrochemical energy storage sub-control device to perform corresponding operations according to the hybrid energy storage output command; The thermal power unit control device is used to control the unit's actuators to perform corresponding operations according to the unit's output command.

2. The system according to claim 1, characterized in that, Determining the control strategies for thermal power units and energy storage operation control strategies based on energy storage charge state values, energy storage frequency deviations, and energy storage power deviations includes: Determine whether the stored charge state value is within a predetermined range; If the energy storage charge state value exceeds the predetermined range, the control strategy for the thermal power unit is determined to be that the thermal power unit outputs power independently, and the energy storage operation control strategy is determined to be that the energy storage does not output power. When the energy storage charge state value is within a predetermined range, determine whether the energy storage frequency deviation is greater than or equal to the predetermined frequency value and whether the energy storage power deviation is greater than or equal to the predetermined power value, and determine the thermal power unit control strategy and energy storage operation control strategy based on the first judgment result.

3. The system according to claim 2, characterized in that, Based on the initial assessment results, the control strategies for thermal power units and energy storage operation control strategies include: If the energy storage frequency deviation is greater than or equal to the predetermined frequency value or the energy storage power deviation is greater than or equal to the predetermined power value, determine whether the frequency regulation and peak shaving power demand is greater than the maximum output power of the energy storage, and determine the thermal power unit control strategy and the energy storage operation control strategy based on the second judgment result. When the energy storage frequency deviation is less than the predetermined frequency value and the energy storage power deviation is less than the predetermined power value, the control strategy for the thermal power unit is determined to be that the thermal power unit outputs power independently, and the energy storage operation control strategy is determined to be that the energy storage does not output power.

4. The system according to claim 3, characterized in that, Based on the second assessment result, the control strategies for thermal power units and energy storage operation control strategies include: When the frequency regulation and peak shaving power demand is greater than the maximum output power of energy storage, the control strategy for thermal power units is determined to be the output of thermal power units, and the operation control strategy for energy storage is determined to be the output of energy storage. When the frequency regulation and peak shaving power demand is less than or equal to the maximum output power of energy storage, the control strategy for thermal power units is determined to be that the thermal power units do not generate power, and the operation control strategy for energy storage is determined to be that energy storage generates power independently.

5. The system according to claim 4, characterized in that, The system also includes a data acquisition terminal, which is used to acquire the energy storage charge state value, energy storage frequency deviation, and energy storage power deviation.

6. A thermal power flywheel energy storage system, characterized in that, The system includes a thermal power generating unit, a flywheel energy storage device, an electrochemical energy storage device, and a dynamic scheduling and operation system for thermal power flywheel energy storage as described in any one of claims 1-5.

7. The system according to claim 6, characterized in that, The thermal power generating unit, the flywheel energy storage device, the electrochemical energy storage device, and the thermal power flywheel energy storage dynamic scheduling and operation system are located on the AC bus side.

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