High-voltage switch cabinet intermediate-equipment-free remote monitoring and operating system

Abstract

The invention belongs to the technical field of high-voltage switch cabinets, and particularly relates to a high-voltage switch cabinet intermediate-equipment-free remote monitoring and operating system which comprises a totally-enclosed shell, a power distribution cabinet controller, a remote monitoring center and a remote operating system. The plurality of acquisition sensors comprise a voltage data acquisition sensor, a current data acquisition sensor, a temperature data acquisition sensor and a humidity data acquisition sensor, and upload information to the remote monitoring center in real time through a network communication technology; the remote operation system is connected with the remote monitoring center to receive and analyze an operation instruction from the remote monitoring center, the remote operation system is connected with the power distribution cabinet controller, and the remote operation system automatically controls the switch-on and switch-off of the switch cabinet according to the content of the operation instruction from the remote monitoring center. The invention aims to solve the technical problem of realizing remote monitoring and operation of the high-voltage switch cabinet under the condition of no intermediate equipment.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-voltage switch cabinets, and in particular relates to a remote monitoring and operating system for high-voltage switch cabinets without intermediate equipment. Background Art

[0002] With the continuous development and improvement of the intelligent level of power systems, high-voltage switchgear, as an important equipment in power systems, has an increasingly prominent demand for remote monitoring and intelligent operation. Traditional high-voltage switchgear usually relies on intermediate equipment such as DTU (distribution terminal unit) to achieve remote monitoring and operation, but this method has problems such as strong dependence, high system complexity and high maintenance cost. Therefore, conducting research on key technologies for remote monitoring and operating systems of high-voltage switchgear without intermediate DTU (equipment) is of great significance to improving the intelligence level and operation efficiency of power systems. Summary of the invention

[0003] The purpose of the present invention is to provide a high-voltage switchgear remote monitoring and operating system without intermediate equipment, which overcomes the shortcomings of the prior art and aims to solve the technical problem of realizing remote monitoring and operation of high-voltage switchgear without intermediate equipment. Specifically, it includes: how to realize real-time status monitoring, fault diagnosis and early warning of switchgear; how to realize accurate transmission and execution of remote operation instructions; how to ensure the safety and stability of the system, etc.

[0004] To solve the above problems, the technical solutions adopted by the present invention are as follows:

[0005] A remote monitoring and operating system for a high-voltage switch cabinet without intermediate equipment comprises a fully enclosed housing, a power distribution cabinet controller, a remote monitoring center and a remote operating system, wherein a plurality of acquisition sensors are arranged in the fully enclosed housing, the plurality of acquisition sensors comprise a data acquisition terminal for a power distribution room, the plurality of acquisition sensors upload information to the remote monitoring center in real time via network communication technology, the remote operating system is connected to the remote monitoring center to receive and parse operation instructions from the remote monitoring center, the remote operating system is connected to the power distribution cabinet controller to close and open the switch, and the remote operating system automatically controls the closing and opening of the switch cabinet according to the operation instruction content from the remote monitoring center.

[0006] Furthermore, the data acquisition terminal of the power distribution room includes high-voltage vacuum circuit breakers, current transformers, voltage transformers, multi-function meters, power quality detectors, heaters, frame circuit breakers, microcomputer comprehensive protection, reactive power compensation controllers, temperature sensors, three-phase voltmeters, busbar temperature sensors, temperature sensors, fans with filter shutters, motor protection, harmonic detectors, partial discharge monitors, microcomputer anti-islanding, switch status display, arc protection devices, voltage data acquisition sensors, current data acquisition sensors, temperature data acquisition sensors, humidity data acquisition sensors

[0007] Furthermore, a circuit breaker, an isolating switch and a contactor are arranged in the fully enclosed housing.

[0008] Furthermore, it also includes a multi-level security protection system, which is connected to the microcomputer comprehensive security network interface. The multi-level security protection system includes an access control technical means module, a module to prevent illegal intrusion and a security accident alarm module caused by operational errors.

[0009] Furthermore, the network communication technology is used to connect the microcomputer comprehensive security network interface, including edge gateways, industrial switches and cloud servers. Multiple acquisition sensors are connected to the cloud server through the edge gateways and industrial switches, and the cloud server is connected to the remote monitoring center.

[0010] Furthermore, the communication protocol of the microcomputer comprehensive security interface is automatically converted from MODBUS-RTU to TCP / IP protocol by the software.

[0011] Furthermore, a temperature control system consisting of a fan is also provided inside the fully enclosed housing. The temperature control system obtains real-time information about the temperature inside the cabinet through a temperature data acquisition sensor, and starts and shuts down the fan through the temperature control system to force convection of air inside and outside the cabinet in real time.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. Use advanced sensor technology and network communication technology to realize real-time collection and remote transmission of switch cabinet status information.

[0014] 2. Through various sensors installed inside the switch cabinet, the key parameters of the switch cabinet such as voltage, current, temperature, humidity, etc. are monitored in real time, and this information is uploaded to the remote monitoring center in real time through network communication technology.

[0015] 3. Design and develop an intelligent remote operating system to achieve accurate transmission and execution of remote operation instructions. The system can receive and analyze operation instructions from the remote monitoring center, and automatically control the closing and opening operations of the switch cabinet according to the instructions. Multi-level security protection measures are adopted to ensure the safety and stability of the system.

[0016] 4. Technical means such as access control are used to prevent security incidents caused by illegal intrusion and operational errors. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a structural diagram of a remote monitoring and operating system for a high-voltage switch cabinet without intermediate equipment. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] As shown in the figure, the present invention describes a high-voltage switch cabinet remote monitoring and operation system without intermediate equipment, including a fully enclosed casing, a distribution cabinet controller, a remote monitoring center and a remote operation system. A plurality of acquisition sensors are arranged in the fully enclosed casing, and the plurality of acquisition sensors include a distribution room data acquisition terminal. The plurality of acquisition sensors upload information to the remote monitoring center in real time through network communication technology. The remote operation system is connected to the remote monitoring center to receive and parse operation instructions from the remote monitoring center. The remote operation system is connected to the distribution cabinet controller to close and open the controller. The remote operation system automatically controls the closing and opening of the switch cabinet according to the content of the operation instructions from the remote monitoring center.

[0020] Furthermore, the data acquisition terminal of the power distribution room includes high-voltage vacuum circuit breakers, current transformers, voltage transformers, multi-function meters, power quality detectors, heaters, frame circuit breakers, microcomputer comprehensive protection, reactive power compensation controllers, temperature sensors, three-phase voltmeters, busbar temperature sensors, temperature sensors, fans with filter shutters, motor protection, harmonic detectors, partial discharge monitors, microcomputer anti-islanding, switch status display, arc protection devices, voltage data acquisition sensors, current data acquisition sensors, temperature data acquisition sensors, humidity data acquisition sensors

[0021] Furthermore, a circuit breaker, an isolating switch and a contactor are arranged in the fully enclosed housing.

[0022] Furthermore, it also includes a multi-level security protection system, which is connected to the microcomputer comprehensive security network interface. The multi-level security protection system includes an access control technical means module, a module to prevent illegal intrusion and a security accident alarm module caused by operational errors.

[0023] Furthermore, the network communication technology is used to connect the microcomputer comprehensive security network interface, including edge gateways, industrial switches and cloud servers. Multiple acquisition sensors are connected to the cloud server through the edge gateways and industrial switches, and the cloud server is connected to the remote monitoring center.

[0024] Furthermore, the communication protocol of the microcomputer comprehensive security interface is automatically converted from MODBUS-RTU to TCP / IP protocol by the software.

[0025] Furthermore, a temperature control system consisting of a fan is also provided inside the fully enclosed housing. The temperature control system obtains real-time information about the temperature inside the cabinet through a temperature data acquisition sensor, and starts and shuts down the fan through the temperature control system to force convection of air inside and outside the cabinet in real time.

[0026] Fully enclosed design: The KYN28 high-voltage switch cabinet housing adopts a fully enclosed design, which effectively isolates the impact of external environmental factors such as moisture and dust on the equipment, providing a more stable and reliable power transmission and control environment;

[0027] Multifunctional configuration: Different types of circuit breakers, disconnectors, contactors and other devices can be configured according to user needs to provide various control and protection functions for the power system; High reliability: Adopting high-quality electrical components and reliable wiring methods, it has high operational reliability and short-circuit resistance, and can ensure the long-term stable operation of the power system; Intelligent monitoring: Through advanced sensor technology and network communication technology, it can realize real-time monitoring and remote transmission of switch cabinet status information, providing strong support for the intelligent management of the power system; Safety assurance: Adopting multi-level safety protection measures to ensure the safety and stability of the system and reduce operating risks and maintenance costs.

[0028] 1. Rated voltage: Meets the requirements of 42KV power system and can adapt to voltage fluctuations of ±10%.

[0029] 2. Rated current: Configured according to actual needs to meet the operation requirements of the power system, up to 1250A.

[0030] 3. Rated short-circuit breaking current: It has sufficient short-circuit breaking capacity to ensure the safe operation of the power system. The maximum breaking current can reach 80kA.

[0031] 4. Remote monitoring and operation response time: achieve fast response and meet real-time requirements.

[0032] 5. System security indicators: Pass relevant security certifications, such as IEC62443, to ensure that the system's security protection capabilities meet industry standards.

[0033] 6. Data transmission rate: Use high-speed communication technology to meet the needs of large-scale data transmission.

[0034] 7. Sensor accuracy: Use high-precision sensors to ensure the accuracy of monitoring data, such as temperature sensor accuracy ±0.5℃, humidity sensor accuracy ±3%RH, etc.

[0035] 8. Electromagnetic compatibility: Comply with relevant electromagnetic compatibility standards, such as IEC61000, to ensure that the equipment can operate normally in an electromagnetic interference environment.

[0036] 9. Environmental adaptability: The equipment can work normally in an environment of -35℃~+40℃.

[0037] KYN28 high-voltage switch has no intermediate DTU (equipment) and can be remotely monitored and operated. It can be applied to smart grid distribution automation, data center power monitoring, mining and metallurgical enterprise power monitoring, new energy access and grid-connected control, industrial production line automation control and urban rail transit power monitoring, etc., reducing customer costs and improving the intelligence level and operation efficiency of the power system.

[0038] The key component of KYN28 switchgear is the microcomputer comprehensive protection, which can monitor the current and voltage data of the high-voltage cabinet in real time by connecting the microcomputer comprehensive protection network interface, remotely control the closing of the switch cabinet, and understand the temperature in the cabinet in real time through the temperature sensor. The temperature control system can force the air inside and outside the cabinet to convect in real time to achieve the goal of lowering the temperature in the cabinet. Air filtration hardware is set between the air convection channels to reduce the air particles in the cabinet and ensure that the equipment can operate normally for a long time. The communication protocol of the microcomputer comprehensive protection interface is automatically converted from MODBUS-RTU to TCP / IP protocol by the software. The data cable of KYN28 high-voltage cabinet is directly connected to the switch, and the switch is directly connected to the computer. At the same time, the company's computer is directly used as a server, and the data is directly stored in the computer hard disk, reducing the investment in DTU (equipment) and server costs.

[0039] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A high-voltage switch cabinet remote monitoring and operating system without intermediate equipment, characterized in that: It includes a fully enclosed shell, a distribution cabinet controller, a remote monitoring center and a remote operating system. A plurality of acquisition sensors are arranged in the fully enclosed shell. The plurality of acquisition sensors include a distribution room data acquisition terminal. The plurality of acquisition sensors upload information to the remote monitoring center in real time through network communication technology. The remote operating system is connected to the remote monitoring center to receive and parse the operation instructions from the remote monitoring center. The remote operating system is connected to the distribution cabinet controller to control the closing and opening of the switch cabinet. The remote operating system automatically controls the closing and opening of the switch cabinet according to the content of the operation instructions from the remote monitoring center.

2. A high-voltage switch cabinet remote monitoring and operation system without intermediate equipment according to claim 1, characterized in that: The distribution room data acquisition terminal includes a high-voltage vacuum circuit breaker, a current transformer, a voltage transformer, a multi-function meter, a power quality detector, a heater, a frame circuit breaker, a microcomputer comprehensive protection, a reactive power compensation controller, a temperature sensor, a three-phase voltmeter, a busbar temperature sensor, a temperature sensor, a fan with filter shutters, a motor protection, a harmonic detector, a partial discharge monitor, a microcomputer anti-islanding, a switch status display, an arc protection device, a voltage data acquisition sensor, a current data acquisition sensor, a temperature data acquisition sensor, and a humidity data acquisition sensor.

3. A high-voltage switch cabinet remote monitoring and operation system without intermediate equipment according to claim 1, characterized in that: A circuit breaker, an isolating switch and a contactor are arranged in the fully enclosed housing.

4. A high-voltage switch cabinet remote monitoring and operation system without intermediate equipment according to any one of claims 1 or 2, characterized in that: The network communication technology is to connect the microcomputer comprehensive security network interface, including an edge gateway, an industrial switch and a cloud server. The multiple acquisition sensors are connected to the cloud server through the edge gateway and the industrial switch, and the cloud server is connected to a remote monitoring center.

5. A high-voltage switch cabinet remote monitoring and operation system without intermediate equipment according to claim 4, characterized in that: The microcomputer comprehensive security interface communication protocol is automatically converted from MODBUS-RTU to TCP / IP protocol by software.

6. A high-voltage switch cabinet remote monitoring and operation system without intermediate equipment according to claim 2, characterized in that: A temperature regulating system consisting of a fan is also provided inside the fully enclosed housing. The temperature regulating system obtains the temperature inside the cabinet in real time through a temperature data acquisition sensor, and starts and stops the fan through the temperature regulating system to force convection of air inside and outside the cabinet in real time.

7. A high-voltage switch cabinet remote monitoring and operation system without intermediate equipment according to claim 1, characterized in that: It also includes a multi-level security protection system, which is connected to the microcomputer comprehensive security network interface. The multi-level security protection system includes an access control technical means module, a module to prevent illegal intrusion and a security accident alarm module caused by operational errors.

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