CN221767396U - Tide type intelligent box transformer substation - Google Patents

Abstract

The utility model discloses a tidal intelligent box transformer, which relates to the technical field of transformers and comprises a box body, wherein a transformation system, an energy storage system and a communication system are arranged on the box body, the transformation system is provided with a transformer, the energy storage system comprises an inverter and an energy storage battery, and the transformer is an open type three-dimensional wound core dry type transformer capable of bearing high overload and can improve the bearing capacity of instantaneous and large-scale change of a load; the energy storage battery can store and manage emergency energy, the energy storage system is also provided with fireproof equipment, the fireproof equipment is provided with a temperature sensor and a smoke sensor, and the fire condition of the energy storage system can be detected; the communication system is connected with and detects the running conditions of the voltage transformation system and the energy storage system, the communication system is used for sending the running conditions to the background monitoring system, the communication system is provided with an intelligent gateway box and a turn-off control box, the intelligent gateway box is used for realizing remote communication, the turn-off control box can realize a safe turn-off function in an emergency, the loss caused by overload is reduced, and the overall stability of a power grid is improved.

Description

A tidal intelligent box-type transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a tidal intelligent box transformer.

Background Art

The non-high overload capacity transformers currently used in the power grid have low overload capacity. According to the network standard, if the load rate exceeds 100% for 4 hours, it will be classified as a daily serious overload and rectification is required. In addition, the current distribution transformers are obviously overloaded in a short time, and the average load is low; the "tidal load" is difficult to predict, and the rectification is difficult, the human and material costs of the rectification are high, the distribution transformer load utilization rate is not high, the distribution transformer rotation cost is high, and the benefit is low; and the current box transformer detection equipment is insufficient, and it is difficult to warn when overload or fire occurs.

Utility Model Content

The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a tidal intelligent box transformer, which can solve the problem of serious short-term overload of the transformer and realize intelligent management of the box transformer.

A tidal intelligent box-type transformer according to an embodiment of the utility model includes:

The box is equipped with a transformer system, an energy storage system and a communication system. The transformer system is provided with a transformer. The energy storage system includes an inverter and an energy storage battery. The transformer is an open three-dimensional wound core dry-type transformer that can withstand high overload and can improve the ability to withstand instantaneous and large changes in load. The inverter can convert the electric energy of the energy storage system into alternating current and supply it to the power consumption end. The energy storage battery can store and manage emergency energy. The energy storage system is also equipped with fire prevention equipment, which has temperature sensors and smoke sensors for detecting fire alarm conditions of the energy storage system. The communication system connects and detects the operation status of the transformer system and the energy storage system. The communication system is used to send the operation status to the background monitoring system. The communication system is equipped with an intelligent gateway box and a shutdown control box. The intelligent gateway box is used to connect to the background monitoring system to realize remote communication and provide data collection and analysis for the background monitoring system. The shutdown control box is used to realize the safety cut-off function in an emergency.

A tidal intelligent box transformer according to an embodiment of the utility model has at least the following beneficial effects: this embodiment is provided with a box body, in which a transformer system, an energy storage system and a communication system are installed, the transformer system is provided with a transformer, the energy storage system includes an inverter and an energy storage battery, the transformer is an open three-dimensional wound core dry-type transformer that can withstand high overload, and can improve the ability to withstand instantaneous and large changes in load; the energy storage battery can store and manage emergency energy; the energy storage system is also provided with fire protection equipment, and the fire protection equipment has a temperature sensor and a smoke sensor for detecting the fire alarm of the energy storage system; the communication system connects and detects the operation status of the transformer system and the energy storage system, the communication system is used to send the operation status to the background monitoring system, the communication system is provided with an intelligent gateway box and a shutdown control box, the intelligent gateway box is used to connect to the background monitoring system to realize remote communication and provide the background monitoring system with data collection and analysis, and the shutdown control box can realize the safety cut-off function in an emergency. In response to the "tidal load" phenomenon in the power grid, it can monitor and predict load changes in real time, and can dynamically adjust load distribution, energy storage management and overload protection, thereby effectively improving the load utilization rate of distribution transformers, reducing losses caused by overloads, reducing operation and maintenance costs, and improving the overall stability and economy of the power grid.

According to some embodiments of the utility model, the interior of the box is divided into multiple functional areas, including a high-voltage chamber, a transformer chamber, a low-voltage chamber, an inverter chamber, a battery chamber and a communication chamber. The transformer chamber is located on the low-voltage chamber, the high-voltage chamber and the communication chamber are arranged side by side along the width direction of the box, and the battery chamber and the inverter chamber are arranged side by side along the width direction of the box.

According to some embodiments of the utility model, the high-voltage room is equipped with a high-voltage incoming line cabinet and a high-voltage outgoing line cabinet. The high-voltage incoming line cabinet is provided with a live display and a lightning arrester, and the high-voltage outgoing line cabinet is equipped with a circuit breaker, an isolating switch, a current transformer, and a relay protection device to realize the access, protection and monitoring functions of the power grid.

According to some embodiments of the utility model, a low-voltage incoming line cabinet, a low-voltage outgoing line cabinet and a low-voltage control cabinet are arranged in the low-voltage room to complete the distribution and control tasks of the low-voltage side power supply network.

According to some embodiments of the utility model, the fire protection equipment also includes a fire extinguishing device and a fireproof partition. The fire extinguishing device is connected to the temperature sensor and the smoke sensor. The fireproof partition is arranged on the inner walls around the battery chamber. The temperature sensor and the smoke sensor are arranged in the top wall of the battery chamber.

According to some embodiments of the present invention, the intelligent gateway box and the shutdown control box are arranged in the communication room.

According to some embodiments of the present utility model, a photovoltaic system is further provided, and the photovoltaic system is connected to the energy storage system.

According to some embodiments of the present invention, the photovoltaic system includes a plurality of photovoltaic modules and a string inverter. The photovoltaic modules are installed on the top of the box, and the photovoltaic modules are connected to the string inverter in a one-to-one correspondence.

According to some embodiments of the utility model, the high-voltage chamber is also equipped with an uninterruptible power supply device, which is connected to the energy storage battery and can automatically and uninterruptedly switch to using the energy storage battery for power supply to prevent safety hazards caused by power loss.

According to some embodiments of the present utility model, the fire protection device is further provided with a humidity sensor, and the humidity sensor is arranged in the battery room to detect water leakage and moisture conditions of the box body.

Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

FIG1 is a first internal layout view of a tidal intelligent box-type transformer in an embodiment of the present utility model;

FIG2 is a second internal layout view of a tidal intelligent box-type transformer in an embodiment of the present utility model;

FIG3 is a top view of the internal layout of a tidal intelligent box-type transformer in an embodiment of the utility model.

Reference numerals:

Box 100; high-voltage room 101; transformer room 102; low-voltage room 103; inverter room 104; battery room 105; communication room 106; inverter 107; energy storage battery 108; transformer 109; intelligent gateway box 110; shutdown control box 111; high-voltage incoming line cabinet 112; high-voltage outgoing line cabinet 113; uninterruptible power supply device 114; circuit breaker 115; low-voltage incoming line cabinet 119; low-voltage outgoing line cabinet 120; low-voltage control cabinet 121; fire extinguishing device 122; fireproof partition 123.

DETAILED DESCRIPTION

The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

Referring to Figures 1, 2 and 3, a tidal intelligent box transformer in an embodiment of the utility model includes a box 100, in which a transformer system, an energy storage system and a communication system are installed. It can be understood that the transformer system is provided with a transformer 109, and the energy storage system includes an inverter 107 and an energy storage battery 108. The inverter 107 can convert the electric energy of the energy storage system into alternating current and supply it to the power consumption end; the transformer 109 is an open three-dimensional wound core dry-type transformer that can withstand high overloads, and can improve the ability to withstand large instantaneous changes in load. In an embodiment of the present application, the transformer 109 is configured as a C-class tidal transformer SGB11-RL-1000kVA, which can be overloaded to 1600kVA, effectively solving the problem of severe short-term overload of the transformer 109. Furthermore, transformer 109 includes a variety of intelligent measuring elements, such as high-voltage relay protection devices, high- and low-voltage current transformers, and low-voltage multi-functional digital display meters, so that the load operating status of the box transformer can be measured, data can be uploaded through the communication system, and the background monitoring system can monitor and control the opening and closing of each switch in real time.

It is understandable that the energy storage battery 108 can store and manage emergency energy. In the event of sudden power shortages or emergencies (such as natural disasters), the energy storage battery 108 can serve as a backup power source to provide instant power supply, ensure the uninterrupted operation of key facilities such as hospitals, communication base stations, emergency command centers, etc., and maintain the continuity of basic social services. In addition, the energy storage battery 108 can also optimize the energy structure and improve energy utilization. Through the intelligent management system, the energy storage battery 108 can flexibly dispatch electricity according to fluctuations in electricity prices, load demand, and changes in renewable energy production, achieve peak shaving and valley filling, reduce grid pressure, reduce electricity costs, and help promote large-scale consumption of clean energy and grid stability.

Furthermore, the energy storage system is also provided with fire prevention equipment, which has temperature sensors and smoke sensors for detecting fire alarms in the energy storage system; the communication system connects and detects the operation of the transformer system and the energy storage system, and the communication system is used to send the operation status to the background monitoring system. The communication system is provided with an intelligent gateway box 110 and a shutoff control box 111, and the intelligent gateway box 110 is used to connect to the background monitoring system to realize remote communication and provide data collection and analysis for the background monitoring system, and the shutoff control box 111 can realize the safety cut-off function in an emergency. It can be understood that the intelligent gateway box 110 and the shutoff control box 111 are arranged in the communication room 106, and the intelligent network box can collect data from various sensors and upload them to the background monitoring system for data analysis, thereby realizing multiple functions such as energy consumption management, environmental monitoring, and fault warning; the shutoff control can realize the functions of power control, safety protection, and remote control, and can accept remote instructions to perform switch operations to realize remote monitoring and remote control.

It is understood that the interior of the box 100 is divided into multiple functional areas, including a high-voltage chamber 101, a transformer chamber 102, a low-voltage chamber 103, an inverter chamber 104, a battery chamber 105, and a communication chamber 106. The transformer chamber 102 is located on the low-voltage chamber 103. Since the transformer 109 is installed in the transformer chamber 102, the heat discharged by the transformer 109 can be discharged through the top of the box 100 without spreading to the low-voltage chamber 103. Further, the high-voltage chamber 101 and the communication chamber 106 are located at one end of the box 100, and the two are arranged side by side along the width direction of the box 100; the battery chamber 105 and the inverter chamber 104 are located at the other end of the box 100, and the two are arranged side by side along the width direction of the box 100, which helps to form a compact space layout and reduce the floor space of the box 100. It is understood that the inverter 107 is installed in the inverter chamber 104, and the energy storage battery 108 is installed in the battery chamber 105.

Referring to FIG. 2 , the fire prevention equipment further includes a fire extinguishing device 122 and a fireproof partition 123. The fire extinguishing device 122 is connected to a temperature sensor and a smoke sensor. The fireproof partition 123 is arranged on the inner walls around the battery chamber 105. The temperature sensor and the smoke sensor are arranged in the top wall of the battery chamber 105. Specifically, the fire extinguishing device 122 is suspended on the top wall of the battery chamber 105. The fire extinguishing device 122 uses an aerosol type automatic fire extinguisher. The fire signal of the battery chamber 105 is detected by the temperature sensor and the smoke sensor, and the fire extinguishing device 122 automatically starts to realize the fire extinguishing function. Furthermore, the fire prevention equipment is also provided with a humidity sensor, which is arranged in the battery chamber 105 to detect water leakage and humidity of the box transformer, thereby sending an alarm signal to the background monitoring system, so as to facilitate the arrangement of maintenance personnel to repair on site and avoid the expansion of the fault and cause greater equipment losses.

Furthermore, the high-voltage room 101 is equipped with a high-voltage incoming line cabinet 112 and a high-voltage outgoing line cabinet 113. The high-voltage incoming line cabinet 112 is provided with a live display and a lightning arrester. The live display is used to visually display whether the electrical equipment in the box transformer has an operating voltage. When the equipment has an operating voltage, the display window of the live display will emit a warning light to warn the operator that the high-voltage equipment is energized, thereby avoiding misoperation and electric shock accidents. A lightning arrester is an electrical appliance used to protect electrical equipment from high transient overvoltage hazards during lightning strikes. It protects the insulation of communication cables and equipment by limiting the amplitude and follow-up time of the overvoltage. When an overvoltage occurs, the lightning arrester will immediately act to direct the high-voltage impact current to the ground, thereby protecting the equipment from damage.

Furthermore, the high-voltage outlet cabinet 113 is equipped with a circuit breaker 115, an isolating switch, a current transformer, and a relay protection device to realize the access, protection and monitoring functions of the power grid. It can be understood that, first of all, the circuit breaker 115 is connected between the high-voltage line and the power grid, and plays the role of switch and protection. In addition, the circuit breaker 115 switch also has the function of measuring current and voltage, so the operating state of the box transformer can be measured. When an abnormal situation such as overload or short circuit occurs in the circuit, the circuit breaker 115 can quickly cut off the fault circuit to prevent the accident from expanding, thereby effectively protecting the power grid equipment and the user's power safety. At the same time, under normal operating conditions, the circuit breaker 115 can also be used to control the on and off of power to realize the access and exit operations of the power grid. Secondly, in the high-voltage outlet cabinet 113, the isolating switch is usually arranged before the circuit breaker 115 to ensure that the inspected part can be completely isolated from the live part during maintenance operations. Furthermore, the current transformer can convert the high current in the high-voltage circuit into a low-voltage current in a certain proportion, so that the instrument and relay protection device can accurately and safely detect and process it. The current transformer is connected in parallel with the main circuit in the high-voltage outlet cabinet 113 to monitor the current flowing through the line in real time. Finally, the relay protection device receives the signal transmitted by the current transformer, implements accurate fault identification and rapid protection action, and effectively prevents power grid paralysis or equipment damage caused by faults.

Optionally, the high-voltage room 101 is also equipped with an uninterruptible power supply device 114 (i.e., UPS), which is connected to the energy storage battery 108 and can automatically and uninterruptibly switch to using the energy storage battery 108 for power supply to prevent safety hazards caused by power failure. It is understandable that the uninterruptible power supply device 114 can ensure continuous power supply: when the external power grid power supply is unstable or completely interrupted, the UPS can seamlessly switch to the battery power supply mode to ensure that the key equipment in the high-voltage room 101 is continuously and stably supplied with power, avoiding equipment shutdown or damage caused by power outages; and the uninterruptible power supply device 114 has a voltage stabilization function, providing high-quality power for sensitive high-voltage equipment, which helps to extend the life of the equipment and improve the reliability of the system; on the other hand, the uninterruptible power supply device 114 can transmit alarm signals to the background monitoring system and execute predetermined protection measures to ensure the safe and stable operation of the power system.

Optionally, a low-voltage incoming line cabinet 119, a low-voltage outgoing line cabinet 120, and a low-voltage control cabinet 121 are arranged in the low-voltage room 103 to complete the distribution and control tasks of the low-voltage side power supply network, and can ensure that the electric energy after the voltage reduction of the transformer 109 is effectively distributed to each power terminal, while ensuring the safety and controllability of the power supply. Specifically, along the width direction of the box body 100, the low-voltage incoming line cabinet 119 and the low-voltage control cabinet 121 are installed on one side of the box body 100 close to the battery room 105, and the low-voltage outgoing line cabinet 120 is arranged on one side of the box body 100 close to the high-voltage room 101, so as to realize the rational use of the space in the box body 100.

Furthermore, a photovoltaic system is provided, and the photovoltaic system is connected to the energy storage system. Specifically, the photovoltaic system includes a plurality of photovoltaic modules and a string inverter, and the photovoltaic modules are installed on the top of the box 100, and the photovoltaic modules are connected to the string inverter in a one-to-one correspondence. It can be understood that the photovoltaic module has a photovoltaic panel, and the photovoltaic panel is connected to the string inverter, and the string inverter can convert the electric energy generated by the photovoltaic module into alternating current and store it in the energy storage system. It can be understood that the photovoltaic module can be installed on the top of the box 100, which is conducive to reducing the occupied space and improving the space utilization.

It can be understood that in response to the "tidal load" phenomenon in the power grid, the present application scheme can monitor the operation of the box transformer in real time and predict load changes through a variety of monitoring devices, and can dynamically adjust load distribution, energy storage management and overload protection, thereby effectively improving the load utilization rate of the distribution transformer, reducing the loss caused by overload, reducing operation and maintenance costs, and improving the overall stability and economy of the power grid.

The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims (10)

1. A tidal intelligent box transformer, comprising:

The box body is provided with a transformation system, an energy storage system and a communication system, the transformation system is provided with a transformer, the energy storage system comprises an inverter and an energy storage battery, and the transformer is an open three-dimensional wound core dry type transformer capable of bearing high overload and can improve the bearing capacity of instantaneous and large-scale change of load; the inverter can convert the electric energy of the energy storage system into alternating current and supply the alternating current to the power utilization end; the energy storage battery can store and manage emergency energy; the energy storage system is also provided with fireproof equipment, and the fireproof equipment is provided with a temperature sensor and a smoke sensor and is used for detecting the fire condition of the energy storage system; the communication system is connected with and detects the operation condition of the transformation system and the energy storage system, the communication system is used for sending the operation condition to the background monitoring system, the communication system is provided with an intelligent gateway box and a turn-off control box, the intelligent gateway box is used for being connected with the background monitoring system so as to realize remote communication and data acquisition and analysis by the background monitoring system, and the turn-off control box is used for realizing a safety cut-off function under emergency conditions.

2. The tidal intelligent box transformer according to claim 1, wherein the box body is divided into a plurality of functional areas, the functional areas comprise a high-voltage chamber, a voltage transformation chamber, a low-voltage chamber, an inversion chamber, a battery chamber and a communication chamber, the voltage transformation chamber is located on the low-voltage chamber, the high-voltage chamber and the communication chamber are arranged in parallel along the width direction of the box body, and the battery chamber and the inversion chamber are arranged in parallel along the width direction of the box body.

3. The tidal intelligent box transformer according to claim 2, wherein the high-voltage chamber is provided with a high-voltage incoming line cabinet and a high-voltage outgoing line cabinet, the high-voltage incoming line cabinet is provided with an electrified display and a lightning arrester, and the high-voltage outgoing line cabinet is provided with a circuit breaker, an isolating switch, a current transformer and a relay protection device so as to realize the functions of accessing, protecting and monitoring a power grid.

4. The tidal intelligent box transformer according to claim 2, wherein a low-voltage inlet cabinet, a low-voltage outlet cabinet and a low-voltage control cabinet are arranged in the low-voltage chamber so as to complete the distribution and control tasks of a low-voltage side power supply network.

5. The tidal intelligent box transformer of claim 2, wherein the fire protection apparatus further comprises a fire extinguishing device and a fire barrier, the fire extinguishing device is connected to the temperature sensor and the smoke sensor, the fire barrier is disposed on the inner peripheral wall of the battery chamber, and the temperature sensor and the smoke sensor are disposed in the top wall of the battery chamber.

6. The tidal intelligent box transformer of claim 2, wherein the intelligent gateway box and the shutdown control box are disposed within the communications chamber.

7. A tidal intelligent box transformer according to claim 1, further comprising a photovoltaic system connected to the energy storage system.

8. The tidal intelligent box transformer of claim 7, wherein the photovoltaic system comprises a plurality of photovoltaic modules and string inverters, the photovoltaic modules are arranged at the top of the box body, and the photovoltaic modules are connected with the string inverters in a one-to-one correspondence.

9. The tidal intelligent box transformer according to claim 2, wherein the high-voltage chamber is further provided with an uninterruptible power supply device, the uninterruptible power supply device is connected to the energy storage battery, and the uninterruptible power supply device can realize automatic uninterrupted switching to power supply by using the energy storage battery, so that potential safety hazards caused by power supply loss are prevented.

10. The tidal intelligent box transformer of claim 2, wherein the fire protection device is further provided with a humidity sensor, the humidity sensor being disposed in the battery compartment to detect water leakage and humidity conditions of the box.