A kind of oil filter wireless control system
Technical field
The utility model belongs to the automatic control technology field, especially relates to a kind of oil filter wireless control system.
Background technology
In the transformer station of power system, existing a large amount of is the transformer of insulation and heat eliminating medium with oil, because the continuous variation of load, its load ratio bridging switch needs constantly to regulate no-load voltage ratio satisfy the requirement of voltage output accuracy to guarantee terminal voltage.But when load ratio bridging switch switched at on-load fast, insulating oil very easily decomposed under the effect of electric arc, wears out and produces a large amount of free carbons and metal fragment etc., caused the insulating oil breakdown voltage to reduce the dielectric properties variation.For solving the above problem that on-load voltage regulating switch exists, use special-purpose on-load tap-changer on-line oil filtering machine can not be implemented in and be used for requirement under the power-off condition insulating oil filtration, purifying and satisfy use to reach.This equipment can be under the situation of the normal operation of transformer; Switch instances automatic on-line oil strain according to tap changer; Effectively remove free carbon, moisture, cracking impurity and acid in the oil, recover the dielectric strength and the performance of shunting switch oil, improve security, the reliability of load ratio bridging switch operation; Significantly reduce the transformer frequency of power cut, improve power supply reliability.
Oil filter of the prior art is through the composition closed circuit circulatory system that is connected with the on-load tap changers of transformers oil circuit; Be used for shunting switch insulating oil circulating filtration under running status; Impurity such as the graphite in the removal oil, metal microparticle, little water, the dielectric strength and the performance of recovery shunting switch insulating oil.The core controller of its control system adopts programmable logic controller (PLC); Can adopt as required regularly or with have the tune switch interlock mode of carrying to purify switch wet goods mode to control; Adopt the wire cable ways of connecting with the watch-dog in the control room; Need pre-buried circuit and other auxiliary equipment when installing at the scene; Also need operating personnel to operate during control, when removing circuitous or upgrading, can increase hardware, expend man-hour and prolong the duration, exist defective and deficiencies such as remote cabling inconvenience, inconvenient operation, manpower and materials are wasteful, inefficiency because of the change of pre-buried circuit to the scene.
The utility model content
The utility model technical problem to be solved is to above-mentioned deficiency of the prior art a kind of oil filter wireless control system to be provided, and it is simple in structure; Reasonable in design, it is convenient to realize, complete function; Intelligent degree is high, and high efficiency uses manpower and material resources sparingly; Security and reliability are high, and application value is high.
For solving the problems of the technologies described above; The technical scheme that the utility model adopts is: a kind of oil filter wireless control system; It is characterized in that: comprise respectively corresponding be installed on many oil filters a plurality of oil filter field controllers and through wireless communication system and the wireless connections of a plurality of oil filter field controller and the long-range main control device of communicating by letter, said wireless communication system comprises a plurality of on-site wireless transceiver modules that correspondence and a plurality of oil filter field controllers respectively join and the master control radio receiving transmitting module that is connected with long-range main control device and also communicates by letter with the wireless connections of a plurality of on-site wireless transceiver module.
Above-mentioned a kind of oil filter wireless control system; It is characterized in that: said master control radio receiving transmitting module is also communicated by letter with the wireless connections of a plurality of on-site wireless transceiver module through a plurality of wireless receiving and dispatching via node modules, and a wireless receiving and dispatching via node module is also communicated by letter with the wireless connections of a plurality of on-site wireless transceiver module.
Above-mentioned a kind of oil filter wireless control system is characterized in that: said master control radio receiving transmitting module and a plurality of said on-site wireless transceiver module are the Zigbee radio receiving transmitting module.
Above-mentioned a kind of oil filter wireless control system is characterized in that: said master control radio receiving transmitting module, a plurality of said wireless receiving and dispatching via node module and a plurality of said on-site wireless transceiver module are the Zigbee radio receiving transmitting module.
Above-mentioned a kind of oil filter wireless control system; It is characterized in that: said long-range main control device comprises micro controller module, be connected on the control parameter setting circuit module of micro controller module input and be connected on the LCDs of micro controller module output, and said master control radio receiving transmitting module and micro controller module join.
Above-mentioned a kind of oil filter wireless control system is characterized in that: said long-range main control device comprises the audible-visual annunciator that is connected on the micro controller module output.
Above-mentioned a kind of oil filter wireless control system; It is characterized in that: said oil filter field controller comprises the sensor groups that is used for the working condition to oil filter and detects in real time, join with sensor groups and the signal that is used for sensor groups is exported carries out the signal conditioning circuit module of amplification filtering and analog-to-digital conversion process and join with the signal conditioning circuit module and be used for the signal that the signal conditioning circuit module is exported is carried out the microprocessor module of analyzing and processing; The output of said microprocessor module joins with the control valve group that is used to control oil filter work and according to the signal that sensor groups is exported the control valve group is controlled, and said on-site wireless transceiver module and microprocessor module join.
Above-mentioned a kind of oil filter wireless control system, it is characterized in that: said micro controller module and microprocessor module are single-chip microcomputer.
Above-mentioned a kind of oil filter wireless control system is characterized in that: said control parameter setting circuit module is the keyboard circuit module.
Above-mentioned a kind of oil filter wireless control system, it is characterized in that: said sensor groups comprises temperature sensor, flow sensor and differential pressure pickup.
The utility model compared with prior art has the following advantages:
1, the utility model adopts modularization, integrated design, and simple in structure, reasonable in design, it is convenient to realize.
2, the complete function of the utility model; Intelligent degree is high; Make oil filter on the basis that possesses original each item function, can realize wireless remote control, promptly operating personnel directly make oil filter in the control room; Monitor the oil filter duty simultaneously, operating personnel need not the scene and operate.Simultaneously, do not need pre-buried circuit when installing at the scene, and other auxiliary equipment, cost and man-hour shortened.
3, the utility model can improve the service efficiency of electric energy and reduce because of personnel, high cost investment that material brought and the unnecessary time consumption that hand labor caused, and has also satisfied the interactive basic demand of exchange of electric power.
4, adopt the Zigbee radio receiving transmitting module to carry out radio communication in the utility model, it is reliable and stable to communicate by letter, and is difficult for being interfered, and also is difficult for disturbing peripheral power equipment, and the reliability of work is high.
5, the utility model has reduced the daily inspection work and the installation cost of transformer station, has improved operating efficiency, has guaranteed Electrical Safety.
6, the utility model will realize that a people controls a plurality of equipment simultaneously, and this has not only improved operating efficiency and security, and realize the preliminary dream that intelligent grid is built, and popularization should be worth height.
In sum, the utility model is simple in structure, and is reasonable in design; It is convenient to realize, complete function, and intelligent degree is high; High efficiency uses manpower and material resources sparingly, and security and reliability are high; Solved defective and deficiencies such as existing in prior technology remote cabling inconvenience, inconvenient operation, manpower and materials are wasteful, inefficiency, application value is high.
Through accompanying drawing and embodiment, the technical scheme of the utility model is done further detailed description below.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model embodiment 1.
Fig. 2 is the schematic block circuit diagram of the utility model embodiment 2.
Fig. 3 is the schematic block circuit diagram of the long-range main control device of the utility model.
Fig. 4 is the schematic block circuit diagram of the utility model oil filter field controller.
Description of reference numerals:
The long-range main control device of 1-; The 1-1-micro controller module;
1-2-control parameter setting circuit module; The 1-3-LCDs;
The 1-4-audible-visual annunciator; 2-on-site wireless transceiver module; 3-oil filter field controller;
The 3-1-sensor groups; The 3-11-temperature sensor; The 3-12-flow sensor;
The 3-13-differential pressure pickup; 3-2-signal conditioning circuit module;
The 3-3-microprocessor module; 3-4-control valve group; 4-master control radio receiving transmitting module;
5-wireless receiving and dispatching via node module.
The specific embodiment
Embodiment 1
As shown in Figure 1; The utility model comprise respectively corresponding be installed on many oil filters a plurality of oil filter field controllers 3 and through wireless communication system and a plurality of oil filter field controller 3 wireless connections and the long-range main control device 1 of communicating by letter, said wireless communication system comprises a plurality of on-site wireless transceiver modules 2 that correspondence and a plurality of oil filter field controllers 3 respectively join and the master control radio receiving transmitting module 4 that is connected with long-range main control device 1 and also communicates by letter with the wireless connections of a plurality of on-site wireless transceiver module.
In the present embodiment, said master control radio receiving transmitting module 4 is the Zigbee radio receiving transmitting module with a plurality of said on-site wireless transceiver modules 2.
In conjunction with Fig. 3; In the present embodiment; Said long-range main control device 1 comprises micro controller module 1-1, be connected on the control parameter setting circuit module 1-2 of micro controller module 1-1 input and be connected on the LCDs 1-3 of micro controller module 1-1 output, and said master control radio receiving transmitting module 4 joins with micro controller module 1-1.Said long-range main control device 1 also comprises the audible-visual annunciator 1-4 that is connected on micro controller module 1-1 output.
In conjunction with Fig. 4; In the present embodiment; Said oil filter field controller 3 comprises the sensor groups 3-1 that is used for the working condition to oil filter and detects in real time, joins with sensor groups 3-1 and is used for the signal that sensor groups 3-1 is exported is carried out the signal conditioning circuit module 3-2 of amplification filtering and analog-to-digital conversion process and joins with signal conditioning circuit module 3-2 and be used for the signal that signal conditioning circuit module 3-2 is exported is carried out the microprocessor module 3-3 of analyzing and processing; The output of said microprocessor module 3-3 joins with the control valve group 3-4 that is used to control oil filter work and according to the signal that sensor groups 3-1 is exported control valve group 3-4 is controlled, and said on-site wireless transceiver module 2 joins with microprocessor module 3-3.
In the present embodiment, said micro controller module 1-1 and microprocessor module 3-3 are single-chip microcomputer.Said control parameter setting circuit module 1-2 is the keyboard circuit module.Said sensor groups 3-1 comprises temperature sensor 3-11, flow sensor 3-12 and differential pressure pickup 3-13.
Embodiment 2
In conjunction with Fig. 2; What present embodiment and embodiment 1 were different is: with a plurality of on-site wireless transceiver module 2 wireless connections and communicate by letter, also communicate by letter with a plurality of on-site wireless transceiver module 2 wireless connections by a wireless receiving and dispatching via node module 5 through a plurality of wireless receiving and dispatching via node modules 5 for said master control radio receiving transmitting module 4.Said master control radio receiving transmitting module 4, a plurality of said wireless receiving and dispatching via node module 5 and a plurality of said on-site wireless transceiver module 2 are the Zigbee radio receiving transmitting module.All the other structures are all identical with embodiment 1.
The operation principle and the course of work of the utility model are: the information that oil filter field controller 3 is sent through wireless communication system receiving remote main control device 1; Work according to the commands for controlling oil filter of long-range main control device 1; Oil filter field controller 3 detects the duty (like working time, work number of times, operating temperature, insulating oil flow etc.) of oil filter in real time and detected oil filter duty is real-time transmitted to long-range main control device 1 through wireless communication system through sensor groups 3-1 simultaneously; Micro controller module 1-1 in the long-range main control device 1 receives information and controls LCDs 1-3 and shows; When oil filter work is broken down; Micro controller module 1-1 guide sound light crossing-signal 1-4 sends alarm signal, reminds the staff to take corresponding measure.Operating personnel can be provided with and handle oil filter through parameter setting circuit module 1-2 on long-range main control device 1, the scene of need not arriving is handled.
The utility model makes oil filter on the basis that possesses original each item function, can realize wireless remote control, and promptly operating personnel directly make oil filter in the control room, monitor the oil filter duty simultaneously, and operating personnel need not the scene and operate.Simultaneously, do not need pre-buried circuit when installing at the scene, and other auxiliary equipment, cost and man-hour shortened.The utility model can improve the service efficiency of electric energy and reduce because of personnel, high cost investment that material brought and the unnecessary time consumption that hand labor caused, and has also satisfied the interactive basic demand of exchange of electric power.To realize that also a people controls a plurality of equipment simultaneously, this has not only improved operating efficiency and security, and has realized the preliminary dream that intelligent grid is built.
The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any restriction; Everyly any simple modification that above embodiment did, change and equivalent structure are changed, all still belong in the protection domain of the utility model technical scheme according to the utility model technical spirit.