CN105258732A - Real-time monitoring system of outdoor electric device - Google Patents

Abstract

The invention discloses a real-time monitoring system for outdoor power equipment, which includes N groups of mutually independent on-site monitoring devices, a secondary wireless inspection station connected to the N groups of on-site monitoring devices, and a ground center connected to the secondary wireless inspection station In the inspection station, N groups of on-site monitoring devices are set independently of each other and any two groups of on-site monitoring devices are in a parallel structure relationship. The on-site monitoring device includes an ultraviolet detector monitor, a temperature and humidity detector, and a peak measurement circuit, and the signal output ends of the ultraviolet detector monitor, the temperature and humidity detector, and the peak measurement circuit are jointly connected to a signal conditioning circuit. The present invention realizes the digital management and monitoring of electric power operation equipment by adopting multi-line sub-point, regional wireless concentration and bus monitoring and control, and cooperates with star or topology information monitoring framework through Zigbee network transmission to ensure the safety of electric power equipment in urban areas. Efficient and safe operation.

Description

A real-time monitoring system for outdoor power equipment

technical field

The invention relates to the field of electric power detection and maintenance, in particular to a real-time monitoring system for outdoor power equipment.

Background technique

With the development of society, in order to make it more convenient for residents to use electricity at ordinary times, the current communities are basically equipped with relevant power transformation equipment, and high-voltage power equipment may have partial discharge faults, and partial discharge will have some impact on the insulating medium. Slight partial discharge has little effect on the insulation of power equipment, and the insulation strength decreases slowly, while strong partial discharge will have a serious impact on the insulation of power equipment, which may eventually lead to damage to power equipment, so regular inspection is required For equipment detection and diagnosis, at present, the staff usually come to check and maintain the power equipment on a regular basis, but this often results in unnecessary waste of personnel resources.

Some important power transfer equipment needs to withstand the load of electricity, heat and machinery, as well as the influence of the natural environment. The long-term operation of the equipment is easy to cause aging and wear, so that the performance of the power equipment will gradually decline, and the reliability of the equipment will also decrease. The failure rate of power equipment will be greatly increased when it goes downhill, which may endanger the safe operation of the power system in the future. Therefore, it is necessary to monitor the status of these devices, especially in urban areas where the population and power operation are concentrated. The operation monitoring of power facilities is particularly important. important.

Contents of the invention

The purpose of the present invention is to provide a real-time monitoring system for outdoor power equipment, which realizes the digital management and monitoring of power operation equipment by adopting multi-line branching, regional wireless concentration and bus monitoring and control, so as to solve the above-mentioned problems in the background technology problems, to ensure the efficient and safe operation of power equipment in urban areas.

To achieve the above object, the present invention provides the following technical solutions:

A real-time monitoring system for outdoor power equipment, including N groups of mutually independent on-site monitoring devices, a secondary wireless inspection station connected to the N groups of on-site monitoring devices, and a ground center inspection station connected to the secondary wireless inspection station, N groups of on-site monitoring devices are set independently of each other and any two groups of on-site monitoring devices are in a parallel structure relationship; on-site monitoring devices include ultraviolet detector monitors, temperature and humidity detectors, peak measurement circuits, ultraviolet detector monitors, temperature The signal output terminals of the humidity detector and the peak value measurement circuit are jointly connected to a signal conditioning circuit, and the ultraviolet detector monitor, the temperature and humidity detector and the peak value measurement circuit cooperate with the signal conditioning circuit to form a real-time monitoring unit, and the real-time monitoring unit is connected to a UPS power supply and a first-class wireless transceiver.

As a further technical solution of the present invention, the primary wireless transceiver adopts a wireless communicator based on a wireless Zigbee network architecture.

As a further technical solution of the present invention, several groups of temperature sensors and humidity sensors distributed in a star structure are arranged in the temperature and humidity detector.

As a further technical solution of the present invention, the peak measurement circuit includes a surge detection circuit and a signal output circuit connected to the surge detection circuit.

As a further technical solution of the present invention, the secondary wireless inspection station includes a signal receiver based on the Zigbee network architecture, an information processor, an early warning device, an information memory, and an optical cable bus transmission unit; the secondary wireless inspection station and N groups of on-site The monitoring devices are connected in topology or star architecture.

As a further technical solution of the present invention, the ground central inspection station is connected to several secondary wireless inspection stations through an optical cable bus.

The present invention realizes the digital management and monitoring of electric power operation equipment by adopting multi-line sub-point, regional wireless concentration and bus monitoring and control, and cooperates with star or topology information monitoring framework through Zigbee network transmission to ensure the safety of electric power equipment in urban areas. Efficient and safe operation. The present invention uses a temperature and humidity detector to monitor the entire range of key areas, and can control the operation dynamics of important power equipment in real time; through real-time monitoring of the peak circuit of the power equipment, the surge situation can be found in time, and the cause can be found to avoid Surge damage of power equipment; the secondary wireless inspection station and N groups of on-site monitoring devices are connected by topology or star architecture to ensure the stability of the information transmission channel; the ground central inspection station and several secondary wireless inspection stations Connection, the ground central inspection station plays the role of dispatching center in the system, summarizes, analyzes, monitors and stores the information collected by the secondary wireless inspection station, and then feeds it back to the power department.

Description of drawings

Fig. 1 is a schematic diagram of the overall operation structure of a real-time monitoring system for outdoor power equipment according to the present invention.

Fig. 2 is a structural schematic diagram of an on-site monitoring device in the present invention.

detailed description

The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

Please refer to Figures 1-2, a real-time monitoring system for outdoor power equipment, including N groups of mutually independent on-site monitoring devices and a secondary wireless inspection station connected to the N groups of on-site monitoring devices and connected to the secondary wireless inspection station The ground center inspection station, N groups of on-site monitoring devices are set independently of each other and any two groups of on-site monitoring devices are in a parallel structure relationship; the on-site monitoring devices include ultraviolet detector monitors, temperature and humidity detectors, peak measurement circuits The signal output ends of the ultraviolet detector monitor, the temperature and humidity detector and the peak measurement circuit are jointly connected to a signal conditioning circuit, and the ultraviolet detector monitor, the temperature and humidity detector and the peak measurement circuit cooperate with the signal conditioning circuit to form a real-time monitoring unit. The real-time monitoring unit is connected with a UPS power supply and a first-class wireless transceiver; the first-class wireless transceiver adopts a wireless communicator based on a wireless Zigbee network architecture, which is characterized by low power consumption of the device, stable signal in a local area, and The interference ability is strong, and it can work for 3 to 5 years only with batteries.

In the present invention, the ultraviolet detector monitor monitors the ultraviolet signal radiated when high-voltage partial discharge occurs inside the power equipment, and after being amplified and filtered by the internal circuit, it is output through AD conversion.

In the present invention, the temperature and humidity detector is equipped with several groups of temperature sensors and humidity sensors distributed in a star structure, and through the full-range monitoring of key areas, the operation dynamics of important power equipment can be controlled in real time.

In the present invention, the peak measurement circuit includes a surge detection circuit and a signal output circuit connected to the surge detection circuit. Through real-time monitoring of the peak circuit of the power equipment, the surge situation can be found in time, and the cause can be found to avoid the surge of the power equipment. surge damage.

In the present invention, the secondary wireless inspection station includes a signal receiver based on the Zigbee network architecture, an information processor, an early warning device, an information memory, and an optical cable bus transmission unit; the secondary wireless inspection station and N groups of on-site monitoring devices adopt a topology architecture Or star architecture connection to ensure the stability of the information transmission channel. The secondary wireless inspection station mainly plays the role of information collection, preliminary real-time storage, preliminary early warning and information transfer during the operation of the system.

In the present invention, the ground central inspection station is connected with several secondary wireless inspection stations through the optical cable bus, and the ground central inspection station plays the role of a dispatching center in the system, and the information collected by the secondary wireless inspection station is processed. Summarize, analyze, monitor and store; form a complete feedback mechanism.

The preferred implementation of this patent has been described in detail above, but this patent is not limited to the above-mentioned implementation. Within the scope of knowledge possessed by those of ordinary skill in the art, various modifications can be made without departing from the purpose of this patent. kind of change.

Claims (5)

1. A real-time monitoring system for outdoor power equipment, characterized in that it includes N groups of mutually independent on-site monitoring devices and a secondary wireless inspection station connected with these N groups of on-site monitoring devices and a secondary wireless inspection station connected Ground center inspection station, N groups of on-site monitoring devices are set independently of each other and any two groups of on-site monitoring devices are in a parallel structure relationship; on-site monitoring devices include ultraviolet detector monitors, temperature and humidity detectors, peak measurement circuits, ultraviolet The signal output terminals of the detector monitor, the temperature and humidity detector and the peak measurement circuit are jointly connected to a signal conditioning circuit, and the ultraviolet detector monitor, the temperature and humidity detector and the peak measurement circuit cooperate with the signal conditioning circuit to form a real-time monitoring unit. The monitoring unit is connected with a UPS power supply and a first-class wireless transceiver. 2. The real-time monitoring system for outdoor power equipment according to claim 1, wherein the primary wireless transceiver adopts a wireless communicator based on a wireless Zigbee network architecture. 3. A real-time monitoring system for outdoor power equipment according to claim 1, wherein the peak measurement circuit comprises a surge detection circuit and a signal output circuit connected to the surge detection circuit. 4. A real-time monitoring system for outdoor power equipment according to claim 1, wherein the ground central inspection station is connected to several secondary wireless inspection stations through an optical cable bus. 5. A kind of outdoor power equipment real-time monitoring system according to claim 1, it is characterized in that, the secondary wireless inspection station includes signal receiver based on Zigbee network architecture, information processor, early warning device, information memory and optical cable bus Transmission unit; the secondary wireless inspection station is connected with N groups of on-site monitoring devices using topology or star architecture.