An integrated energy system relying on multi-power station integrated energy

Abstract

The present invention discloses an integrated energy system relying on multi-power station integrated energy, including a photovoltaic power generation system that converts solar energy into electrical energy, converts it into alternating current through an inverter, and connects to the external power grid; a wind power generation system that converts wind energy into electrical energy and connects to the external power grid through a frequency converter; an external power grid that provides stable high-voltage alternating current, converts it into low-voltage electricity through a transformer, and supplies power to users; a heat storage device that generates heat by being powered by the photovoltaic power generation system or the wind power generation system and supplies heat to users; an electricity storage device that stores electricity through the photovoltaic power generation system or the wind power generation system and supplies power to users. The present invention effectively utilizes the excess electricity generated by the photovoltaic power generation system and the wind power generation system through a dispatching system, stores electrical energy through the electricity storage device, stores thermal energy through the heat storage device, and provides it to users during peak electricity consumption periods, relieving the power supply pressure on the external power grid and improving energy utilization efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated energy, and in particular to an integrated energy system relying on multi-power station integrated energy. Background Art

[0002] An integrated energy system refers to an advanced physical information technology and innovative management model used in a certain area to integrate various energies such as coal, oil, natural gas, electric energy, and heat energy in the area, and to achieve coordinated planning, optimized operation, collaborative management, interactive response, and mutual complementarity among multiple heterogeneous energy subsystems. While meeting the diversified energy consumption needs within the system, it is necessary to effectively improve the energy utilization efficiency and promote the sustainable development of energy in a new type of integrated energy system.

[0003] The existing integrated energy system cannot effectively utilize the excess new energy power generation, resulting in waste of the electricity generated by new energy power generation and low energy utilization rate.

[0004] For example, Chinese Patent CN202120126073.0 discloses a park integrated energy supply system with phosgene, electricity storage, and geothermal coupling. The electric energy provided by the gas turbine generator set and the solar photovoltaic panel is used for self-generation and self-use, surplus power refrigeration or heating, and electricity storage respectively according to different priorities, which maximally reduces the capacity of the electricity storage equipment and improves the comprehensive utilization rate of energy and the economic efficiency of system operation; although this application uses a gas turbine generator set for a certain degree of electricity storage, the utilization rate of the overall photovoltaic power generation system is still low. Summary of the Invention

[0005] The present invention mainly solves the problem of low energy utilization rate in the integrated energy system in the existing technology; and provides an integrated energy system relying on multi-power station integrated energy.

[0006] The above technical problems of the present invention are mainly solved by the following technical solutions: An integrated energy system relying on multi-power station integrated energy includes a photovoltaic power generation system that converts solar energy into electrical energy, converts it into alternating current through an inverter, and then connects to the external power grid; a wind power generation system that converts wind energy into electrical energy and connects to the external power grid through a frequency converter; an external power grid that provides stable high-voltage alternating current, converts it into low-voltage electricity through a transformer, and then supplies power to users; a heat storage device that generates heat through power supply by the photovoltaic power generation system or the wind power generation system and supplies heat to users; an electricity storage device that stores electricity through the photovoltaic power generation system or the wind power generation system and supplies power to users; a dispatching system that obtains the peak and valley periods of the power grid power supply, controls the photovoltaic power generation system and the wind power generation system to be connected to the external power grid in parallel during the peak period of the power grid power supply, controls the heat storage device to supply heat to users when the users need heat, and at the same time controls the electricity storage device to generate low-voltage alternating current to supply power to users, and controls the photovoltaic power generation system and the wind power generation system to generate heat for the heat storage device and store electricity for the electricity storage device during the valley period of the power grid power supply. The dispatching system effectively utilizes the excess electricity generated by the photovoltaic power generation system and the wind power generation system, stores electrical energy through the electricity storage device, stores thermal energy through the heat storage device, and provides it to users during the peak electricity consumption period, reducing the power supply pressure on the external power grid and improving energy utilization efficiency.

[0007] Preferably, it further includes a monitoring system. The monitoring system includes a photovoltaic power station monitoring system and a wind power station monitoring system. When the photovoltaic power station monitoring system and the wind power station monitoring system upload monitoring data, they simultaneously upload the longitude and latitude information of the power stations to the dispatching system. The monitoring system effectively monitors wind power generation and photovoltaic power generation, prevents failures in new energy power generation from causing abnormal power supply during the peak electricity consumption period or inability to store electricity during the valley period of electricity consumption, and reduces the damage degree of failures.

[0008] Preferably, the photovoltaic power station monitoring system includes: a data acquisition module, configured to collect data information of the photovoltaic power station in real time, encrypt the data through an encryption module, and transmit the data information of the photovoltaic power station to the server in the form of a first data packet; an environmental monitoring module, configured to monitor the environmental information of the photovoltaic power station in real time, and transmit the environmental information to the controller in the form of a second data packet at a frequency of period T; a sniffer, disposed in the photovoltaic power station, configured to intercept the first data packet sent by the data acquisition module and the second data packet sent by the environmental monitoring module, parse the data of the first data packet, determine whether the first data packet is successfully encrypted and transmit the determination result to the server, parse the data of the second data packet, obtain the environmental information in the second data packet, mark the environmental information according to the historical data stored in the memory, and transmit the environmental information in the second data packet and the marked environmental information to the controller at a frequency of T / 2; a controller, configured to receive the data information of the data acquisition module, parse the first data packet when the determination result transmitted by the sniffer is yes, and when the determination result transmitted by the sniffer is no, send an instruction to the data acquisition module to resend the data information of the photovoltaic power station, receive the environmental information transmitted by the environmental monitoring module, compare it with the environmental information transmitted by the sniffer, retain the marked environmental information when the comparison result is consistent, otherwise, send an instruction to the environmental monitoring module to resend the environmental information, generate operation index data of the photovoltaic power station according to the data information of the photovoltaic power station and the marked environmental information, and the controller transmits the operation index data of the photovoltaic power station, the data information of the photovoltaic power station, and the marked environmental information to the dispatching system. The data information of the photovoltaic power station is encrypted through the encryption module, and the encrypted data packet cannot be decrypted even if it is stolen, improving the security guarantee of the transmitted information. The sniffer is set to intercept the transmitted data, simulate the process and method of data stealing, and at the same time, verify and detect the transmitted information to ensure that the data received by the controller is complete, improving the reliability of data transmission.

[0009] Preferably, it further includes a timing module, which is connected to the data acquisition module, performs timing when the data acquisition module collects data once, and sends the timing information to the encryption module and the controller. Timing is performed through the timing module, which is used for encryption and is convenient for information viewing and information tracing back.

[0010] Preferably, the method for the encryption module to encrypt data is: according to the timing information of the timing module, add a timestamp to the header of the data packet for data packet encryption. When encrypting with a timestamp, add the hours, minutes, and seconds of the timestamp to get a number L, convert the decimal number L into a binary string, and encrypt the data packet according to the converted binary string.

[0011] Preferably, it further includes a grid connection fluctuation indicator, which is connected to the dispatching system. The grid connection fluctuation indicator includes a housing, a current transformer, an action spring, a guide rail, a slider, a high-voltage indicating device, and a low-voltage indicating device. The housing is installed on the grid connection line. The slider is slidably connected to the housing through a guide rail installed at the bottom of the housing. High-voltage safety chambers and low-voltage safety chambers are provided on both sides of the slider. On one side of the high-voltage safety chamber and the low-voltage safety chamber close to the slider, movable plates slidably connected to the guide rail are provided. The high-voltage indicating device is installed in the high-voltage safety chamber, and the low-voltage indicating device is installed in the low-voltage safety chamber. The current transformer is used to collect the current on the grid connection line. One end of the action spring is connected to the current transformer, and the other end of the action spring is connected to the slider. By using the grid connection fluctuation indicator to detect the fluctuation situation after the photovoltaic power generation system and the wind power generation system are connected to the grid, the dispatching system can better perform energy dispatching, further improving energy utilization efficiency. The spring has the property of compressing under voltage. When installing the spring, it is pre-compressed according to the magnitude of the common current at the installation position. When the grid voltage fluctuation voltage increases, the current collected by the current transformer increases, and the action spring further contracts, compressing the high-voltage indicating device in the high-voltage installation chamber. When the grid voltage fluctuation voltage decreases, the current collected by the current transformer becomes smaller, and the action spring makes a certain degree of recovery, squeezing the low-voltage indicating device in the low-voltage installation chamber.

[0012] Preferably, both the high-voltage indicating device and the low-voltage indicating device include a liquid level gauge, a liquid guide pipe, and a flexible ball. Partition plates are provided in both the high-voltage safety chamber and the low-voltage safety chamber. The flexible ball is installed on the partition plate and abuts against the movable plate. The liquid level gauge is installed on the other side of the partition plate. The partition plate is provided with a through hole. One end of the liquid guide pipe is connected to the liquid level gauge, and the other end of the liquid guide pipe passes through the through hole and is connected to the flexible ball. After the flexible ball is squeezed, the pressure inside the flexible ball increases, and the liquid is squeezed through the liquid guide pipe, causing the liquid level height displayed by the liquid level gauge to change. After the voltage fluctuation subsides, the action spring resets, the movable plate resets, the flexible ball slowly returns, and the liquid level displayed by the liquid level gauge returns to its original position. The flexible ball can also be filled with the same liquid as the liquid level gauge. The liquid level gauge can use an electronic liquid level gauge or a camera can be added to read the liquid level and transmit it to the dispatching center.

[0013] Preferably, the heat storage device includes a heat storage module and a steam generation module. The heat storage module is powered by a photovoltaic power generation system or a wind power generation system to generate heat. The steam generation module is connected to the heat storage module. The steam generation module generates steam through the heat generated by the heat storage module and transports it to users through a gas pipeline.

[0014] The beneficial effects of the present invention are as follows: The dispatching system effectively utilizes the excess electricity generated by the photovoltaic power generation system and the wind power generation system, stores electrical energy through the electricity storage device, stores thermal energy through the heat storage device, and supplies it to users during peak electricity consumption periods, relieving the power supply pressure on the external power grid and improving energy utilization efficiency; The grid connection fluctuation indicator detects the fluctuation conditions after the photovoltaic power generation system and the wind power generation system are connected to the grid, enabling the dispatching system to better perform energy dispatching and further improving energy utilization efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a structural block diagram of the integrated energy system according to an embodiment of the present invention.

[0016] Figure 2 is a schematic structural diagram of the grid connection fluctuation indicator according to an embodiment of the present invention.

[0017] In the figure, 1 is the dispatching system, 2 is the photovoltaic power generation system, 3 is the wind power generation system, 4 is the external power grid, 5 is the housing, 6 is the current transformer, 7 is the action spring, 8 is the guide rail, 9 is the slider, 10 is the low-voltage installation cavity, 11 is the high-voltage safety cavity, 12 is the liquid level gauge, 13 is the flexible ball, 14 is the liquid guide pipe, 15 is the partition board, 16 is the movable board, 17 is the heat storage device, 18 is the electricity storage device, and 19 is the user. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The following specific examples illustrate the embodiments of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0019] It should be noted that in the following description, reference is made to the accompanying drawings, which describe several embodiments of the present invention. It should be understood that other embodiments can also be used, and mechanical composition, structure, electrical, and operational changes can be made without departing from the spirit and scope of the present invention. The following detailed description should not be considered restrictive, and the scope of the embodiments of the present invention is only defined by the claims of the published patent. The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. Spatially related terms, such as "upper", "lower", "left", "right", "below", "beneath", "lower part", "above", "upper part", etc., can be used in the text to facilitate the description of the relationship between one element or feature shown in the figure and another element or feature.

[0020] In the present invention, unless otherwise clearly specified or limited, terms such as "installation", "connection", "attachment", "fixation", "holding" and the like shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0021] Furthermore, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. Terms such as "first", "second", "third", "fourth", etc. (if any) in the description and claims of the present invention and the above drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data so used may be interchanged where appropriate so that the embodiments described herein can be implemented in an order different from that shown or described herein. In addition, the terms "comprising", "including" indicate the presence of the stated features, operations, elements, components, items, types, and / or groups, but do not exclude the presence, occurrence, or addition of one or more other features, operations, elements, components, items, types, and / or groups. It should be further understood that the terms "or" and "and / or" used herein are interpreted as inclusive, or meaning any one or any combination. Thus, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". An exception to this definition occurs only when the combination of elements, functions or operations is inherently mutually exclusive in some way.

[0022] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be further described in detail below through the following embodiments in conjunction with the drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the invention.

[0023] Embodiment: An integrated energy system relying on multi-power station integrated energy, such as Figure 1As shown in the figure, it includes a photovoltaic power generation system 2, a wind power generation system 3, an external power grid 4, a heat storage device 17, an electricity storage device 18, and a dispatching system 1. Among them, the photovoltaic power generation system converts solar energy into electrical energy, which is converted into alternating current by an inverter and then connected to the external power grid. The wind power generation system converts wind energy into electrical energy and is connected to the external power grid through a frequency converter. The external power grid provides stable high-voltage alternating current, which is converted into low-voltage electricity by a transformer and then supplied to users 19. The heat storage device generates heat through power supply by the photovoltaic power generation system or the wind power generation system and supplies heat to users. The electricity storage device stores electricity through the photovoltaic power generation system or the wind power generation system and supplies power to users. The dispatching system obtains the peak and valley periods of power grid power supply according to the historical user curve of users. During the peak period of power grid power supply, it controls the photovoltaic power generation system and the wind power generation system to be connected to the external power grid in parallel. When users need heat supply, it controls the heat storage device to supply heat to users, and at the same time controls the electricity storage device to generate low-voltage alternating current to supply power to users. During the valley period of power grid power supply, it controls the photovoltaic power generation system and the wind power generation system to generate heat for the heat storage device and store electricity for the electricity storage device.

[0024] In this embodiment, a monitoring system is also provided. The monitoring system includes a photovoltaic power station monitoring system and a wind power station monitoring system. When the photovoltaic power station monitoring system and the wind power station monitoring system upload monitoring data, they simultaneously upload the longitude and latitude information of the power station to the dispatching system. The photovoltaic power station monitoring system includes: a data acquisition module, which is used to collect the data information of the photovoltaic power station in real time, encrypt the data through an encryption module, and transmit the data information of the photovoltaic power station to the server in the form of a first data packet; an environmental monitoring module, which is used to monitor the environmental information of the photovoltaic power station in real time and transmit the environmental information to the controller in the form of a second data packet at a frequency of period T; a sniffer, which is set in the photovoltaic power station and is used to intercept the first data packet sent by the data acquisition module and the second data packet sent by the environmental monitoring module, parse the first data packet to judge whether the first data packet is successfully encrypted and transmit the judgment result to the server, parse the second data packet to obtain the environmental information in the second data packet, mark the environmental information according to the historical data stored in the memory, and transmit the environmental information in the second data packet and the marked environmental information to the controller at a frequency of T / 2; a controller, which receives the data information of the data acquisition module, and when the judgment result transmitted by the sniffer is yes, parses the first data packet. When the judgment result transmitted by the sniffer is no, it issues an instruction to the data acquisition module to resend the data information of the photovoltaic power station, receives the environmental information transmitted by the environmental monitoring module, compares it with the environmental information transmitted by the sniffer, retains the marked environmental information when the comparison result is consistent, otherwise, issues an instruction to the environmental monitoring module to resend the environmental information, generates the operation index data of the photovoltaic power station according to the data information of the photovoltaic power station and the marked environmental information, and the controller transmits the operation index data of the photovoltaic power station, the data information of the photovoltaic power station, and the marked environmental information to the dispatching system.

[0025] The data acquisition module includes a first temperature sensor, a voltage acquisition module, a current acquisition module, a maintenance information memory, an acoustic wave generator, and a recording device. Among them, the first temperature sensor is used to collect the temperature information of the photovoltaic device, the voltage acquisition module and the current acquisition module are used to collect the power generation power of the photovoltaic power station. After each maintenance of the photovoltaic device, the maintenance personnel record the maintenance information in the maintenance information memory. The service life of the device is predicted through the maintenance information, device signals, and device usage duration. A rotating component is provided at the installation part of the photovoltaic module. The rotating component drives the photovoltaic module to rotate. The rotating component is equipped with a network time synchronization device. The rotation of the rotating component is controlled through the network time synchronization device, so that the photovoltaic module rotates with the movement of the sun to receive more sunlight. The acoustic wave generator sends acoustic waves to detect the rotation of the photovoltaic module. The recording device receives the acoustic waves, and judges whether the photovoltaic module rotates normally according to the emission time and reception time of the acoustic waves.

[0026] Specifically, 6:00 am every day is the starting position of the rotation of the photovoltaic module, and 18:00 pm is the ending position of the rotation of the photovoltaic module. When the time of the network time synchronization device reaches 18:00, the rotation component is controlled to rotate in the reverse direction, so that the photovoltaic module slowly resets.

[0027] The environment monitoring module includes a second temperature sensor, a meteorological instrument, and a soil detector. The ambient temperature information is detected through the second temperature sensor, the meteorological information is detected through the meteorological instrument, and the soil information is detected through the soil detector. The power generation amount that the photovoltaic device can generate is judged through the ambient temperature information and the meteorological information. Combining with the power generation amount information of the photovoltaic power station collected by the data acquisition module, the fault of the photovoltaic device is judged. The ground soil of the photovoltaic power station is inspected through the soil information to prevent faults such as landslides. At the same time, according to the soil state, the vibration condition of the grounding device can be feedback, improving the comprehensiveness of the monitoring of the photovoltaic power station.

[0028] The first data packet is parsed by the sniffer. If the first data packet is successfully parsed, the first data packet is not encrypted. The sniffer feeds back to the server, and the server repairs and processes the encryption module through relevant personnel. When the first data packet cannot be parsed by the sniffer, it proves that the first data packet is successfully encrypted. Even if it is obtained by others midway, there will be no risk of information leakage, improving the security of information transmission. The sniffer intercepts the second data packet transmitted by the environment monitoring module. The server confirms the integrity of the data transmission through comparison, and sends data at different cycle frequencies to ensure that the received data is not changed midway.

[0029] In this embodiment, a timing module is further provided. The timing module is connected to the data acquisition module. When the data acquisition module acquires data once, timing is performed, and the timing information is sent to the encryption module and the server. The method for the encryption module to encrypt data is as follows: According to the timing information of the timing module, a timestamp is added to the header of the data packet for data packet encryption.

[0030] As Figure 2 shown, the grid-connected fluctuation indicator includes a housing 5, a current transformer 6, an action spring 7, a guide rail 8, a slider 9, a high-voltage indicating device, and a low-voltage indicating device. The housing is installed on the grid-connected line. The slider is slidably connected to the housing through the guide rail installed at the bottom of the housing. High-voltage safety cavities 11 and low-voltage safety cavities 10 are provided on both sides of the slider. On the side of the high-voltage safety cavity and the low-voltage safety cavity close to the slider, movable plates 16 slidably connected to the guide rail are provided. The high-voltage indicating device is installed in the high-voltage safety cavity, and the low-voltage indicating device is installed in the low-voltage safety cavity. The current transformer is used to collect the current on the grid-connected line. One end of the action spring is connected to the current transformer, and the other end of the action spring is connected to the slider. Both the high-voltage indicating device and the low-voltage indicating device include a liquid level gauge 12, a liquid guide pipe 14, and a flexible ball 13. Partition plates 15 are provided in both the high-voltage safety cavity and the low-voltage safety cavity. The flexible ball is installed on the partition plate and abuts against the movable plate. The liquid level gauge is installed on the other side of the partition plate. The partition plate is provided with a through hole. One end of the liquid guide pipe is connected to the liquid level gauge, and the other end of the liquid guide pipe passes through the through hole and is connected to the flexible ball; the spring has the property of compressing under voltage. When installing the spring, according to the magnitude of the common current at the installation position, the spring is pre-compressed. When the grid voltage fluctuation voltage increases, the current collected by the current transformer increases, and the action spring further contracts, compressing the high-voltage indicating device in the high-voltage installation cavity. When the grid voltage fluctuation voltage decreases, the current collected by the current transformer becomes smaller, and the action spring returns to a certain extent, squeezing the low-voltage indicating device in the low-voltage installation cavity. After the flexible ball is squeezed, the pressure inside the flexible ball becomes larger, and the liquid is squeezed through the liquid guide pipe, and the liquid level height displayed by the liquid level gauge changes. After the voltage fluctuation subsides, the action spring resets, the movable plate resets, the flexible ball slowly returns, and the liquid level displayed by the liquid level gauge returns to its original position. The flexible ball can also be filled with the same liquid as the liquid level gauge. The liquid level gauge can adopt an electronic liquid level gauge or a camera can be added to read the liquid level and transmit it to the dispatching system.

[0031] The heat storage device includes a heat storage module and a steam generation module. The heat storage module is powered and heated by a photovoltaic power generation system or a wind power generation system. The steam generation module is connected to the heat storage module. The steam generation module generates steam by the heat generated by the heat storage module and transports it to the user through a gas pipeline.

[0032] The electricity storage device uses a storage battery to store electricity. When supplying power to the user, it is converted into low-voltage alternating current for the user to use through a boost module and an inverter module.

[0033] The present invention effectively utilizes the excess electricity generated by the photovoltaic power generation system and the wind power generation system through a dispatching system, stores electrical energy through an electricity storage device, stores thermal energy through a heat storage device, and supplies it to users during peak electricity consumption periods, relieving the power supply pressure on the external power grid and improving energy utilization efficiency; the grid connection fluctuation indicator is used to detect the fluctuation conditions after the photovoltaic power generation system and the wind power generation system are connected to the grid, enabling the dispatching system to better perform energy dispatching and further improving energy utilization efficiency.

[0034] The above-described embodiments are only a preferred solution of the present invention, and do not impose any form of limitation on the present invention. There are other variations and modifications without exceeding the technical solutions described in the claims.

Claims

1. An integrated energy system relying on multi-power station integrated energy, characterized in that, Including: A photovoltaic power generation system that converts solar energy into electrical energy, which is converted into alternating current by an inverter and then connected to the external power grid; A wind power generation system that converts wind energy into electrical energy and is connected to the external power grid through a frequency converter; An external power grid that provides stable high-voltage alternating current, which is converted into low-voltage electricity by a transformer and then supplies power to users; A heat storage device that generates heat through power supply from the photovoltaic power generation system or the wind power generation system and supplies heat to users; An electricity storage device that stores electricity through the photovoltaic power generation system or the wind power generation system and supplies power to users; A dispatching system that obtains the peak and valley periods of the power grid supply. During the peak period of the power grid supply, it controls the photovoltaic power generation system and the wind power generation system to be connected to the external power grid in parallel. When the user needs heat supply, it controls the heat storage device to supply heat to the user. At the same time, it controls the electricity storage device to generate low-voltage alternating current to supply power to the user. During the valley period of the power grid supply, it controls the photovoltaic power generation system and the wind power generation system to generate heat for the heat storage device and store electricity for the electricity storage device. It also includes a grid connection fluctuation indicator, which includes a housing, a current transformer, an action spring, a guide rail, a slider, a high-voltage indicating device, and a low-voltage indicating device. The slider is slidably connected to the housing through the guide rail installed at the bottom of the housing. High-voltage safety chambers and low-voltage safety chambers are provided on both sides of the slider. On the side of the high-voltage safety chamber and the low-voltage safety chamber close to the slider, movable plates slidably connected to the guide rail are provided. The high-voltage indicating device is in the high-voltage safety chamber, and the low-voltage indicating device is in the low-voltage safety chamber. The current transformer collects the current on the grid connection line. One end of the action spring is connected to the current transformer, and the other end of the action spring is connected to the slider. When installing the spring, the spring is pre-compressed according to the common current at the installation position.

2. An integrated energy system relying on multi-power station integrated energy according to claim 1, characterized in that it further includes a monitoring system, and the monitoring system includes a photovoltaic power station monitoring system and a wind power station monitoring system. When the photovoltaic power station monitoring system and the wind power station monitoring system upload monitoring data, they simultaneously upload the longitude and latitude information of the power station to the dispatching system.

3. An integrated energy system relying on multi-power station integrated energy according to claim 2, characterized in that the photovoltaic power station monitoring system includes: A data acquisition module for real-time acquisition of data information of the photovoltaic power station. After data encryption through an encryption module, it transmits the data information of the photovoltaic power station to the server in the form of a first data packet; An environmental monitoring module for real-time monitoring of the environmental information of the photovoltaic power station and transmitting the environmental information to the controller in the form of a second data packet at a frequency of period T; A sniffer is arranged in the photovoltaic power station and is used to intercept the first data packet sent by the data acquisition module and the second data packet sent by the environmental monitoring module. It analyzes the data of the first data packet to determine whether the first data packet is successfully encrypted and transmits the judgment result to the server. It analyzes the data of the second data packet to obtain the environmental information in the second data packet, marks the environmental information according to the historical data stored in the memory, and transmits the environmental information in the second data packet and the marked environmental information to the controller at a frequency of T / 2 period; The controller receives the data information from the data acquisition module and, when the judgment result passed by the sniffer is yes, parses the data of the first data packet. When the judgment result passed by the sniffer is no, it issues an instruction to the data acquisition module to resend the data information of the photovoltaic power station. It receives the environmental information passed by the environmental monitoring module and compares it with the environmental information passed by the sniffer. When the comparison results are consistent, it retains the marked environmental information. Otherwise, it issues an instruction to the environmental monitoring module to resend the environmental information. It generates the operation index data of the photovoltaic power station based on the data information of the photovoltaic power station and the marked environmental information, and the controller transmits the operation index data of the photovoltaic power station, the data information of the photovoltaic power station, and the marked environmental information to the dispatching system.

4. The integrated energy system relying on multi-power station integrated energy according to claim 3, characterized in that it further includes a timing module, the timing module is connected to the data acquisition module, when the data acquisition module acquires data once, it performs timing and sends the timing information to the encryption module and the controller.

5. The integrated energy system relying on multi-power station integrated energy according to claim 4, characterized in that the method for the encryption module to encrypt data is: according to the timing information of the timing module, add a timestamp to the header of the data packet to encrypt the data packet.

6. The integrated energy system relying on multi-power station integrated energy according to claim 1, characterized in that it further includes a grid connection fluctuation indicator, the grid connection fluctuation indicator is connected to the dispatching system, the grid connection fluctuation indicator includes a housing, a current transformer, an action spring, a guide rail, a slider, a high-voltage indicating device and a low-voltage indicating device. The housing is installed on the grid connection line. The slider is slidably connected to the housing through the guide rail installed at the bottom of the housing. High-voltage safety chambers and low-voltage safety chambers are arranged on both sides of the slider. Moving plates slidably connected to the guide rail are arranged on one side of the high-voltage safety chamber and the low-voltage safety chamber close to the slider. The high-voltage indicating device is installed in the high-voltage safety chamber, and the low-voltage indicating device is installed in the low-voltage safety chamber. The current transformer is used to collect the current on the grid connection line. One end of the action spring is connected to the current transformer, and the other end of the action spring is connected to the slider.

7. The integrated energy system relying on multi-power station integrated energy according to claim 6, characterized in that both the high-voltage indicating device and the low-voltage indicating device include a liquid level gauge, a liquid guide pipe and a flexible ball. Partition plates are arranged in both the high-voltage safety chamber and the low-voltage safety chamber. The flexible ball is installed on the partition plate and abuts against the moving plate. The liquid level gauge is installed on the other side of the partition plate. Through holes are opened in the partition plate. One end of the liquid guide pipe is connected to the liquid level gauge, and the other end of the liquid guide pipe passes through the through hole and is connected to the flexible ball.

8. The integrated energy system relying on multi-power station integrated energy according to claim 1, characterized in that The heat storage device includes a heat storage module and a steam generation module. The heat storage module is powered and heated by a photovoltaic power generation system or a wind power generation system. The steam generation module is connected to the heat storage module. The steam generation module generates steam by the heat generated by the heat storage module and transports it to users through a gas pipeline.

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