CN208173450U - One kind being used for disconnecting link opening and closing location calibration device and position correction disconnecting link system - Google Patents

Abstract

The utility model discloses one kind to be used for disconnecting link opening and closing location calibration device and position correction disconnecting link system, wherein this is used for disconnecting link opening and closing location calibration device and includes：Position sensor and wireless receiver, the position sensor and wireless receiver communication connection transmitting-receiving disconnecting link opening and closing position data, while wireless receiver is also used to be communicatively coupled with external data cable and sends disconnecting link opening and closing position data.Using having the beneficial effect that for this programme：Pass through position sensor and wireless receiver communication connection transmitting-receiving disconnecting link opening and closing position data, wireless receiver, which is also used to be communicatively coupled with external data cable, simultaneously sends disconnecting link opening and closing position data, the accurate accurate location for informing operator's disconnecting link opening and closing avoids the drawback of the error manually estimated in the past and auxiliary switch detection inaccuracy.

Description

One kind being used for disconnecting link opening and closing location calibration device and position correction disconnecting link system

Technical field

The utility model relates to technical field of electric power, in particular to a kind of to be used for disconnecting link opening and closing location calibration device and position Sizing tool brake system.

Background technique

Switch mechanism role in substation operation is to establish reliable clearance for insulation, makes equipment or route and power supply shape At obvious cut-off point, to guarantee equipment and personal safety.The open isolating switch (abbreviation disconnecting link) of substation 35kV or more It is mainly used for " isolated power supply, grid switching operation, to be connected to and cut off low current circuit ", belongs to the switching device of no arc extinguishing.Every Leave to close has the insulation distance for meeting prescribed requirement and apparent disconnect to indicate in open position, between contact；When coincidence is set, Electric current under normal loop condition and the at the appointed time switchgear of the electric current under exceptional condition (such as short circuit) can be carried.

The open isolating switch (abbreviation disconnecting link) of substation 35kV or more, the prior art is for disconnecting link opening and closing gate position Confirmation, mainly pass through two means：One is whether in place artificial range estimation judges disconnecting link opening and closing lock, and this method generally passes through Instruction device observation, but with the aging of switch mechanism, corrosion etc., which can have mechanism clamping stagnation, causes direction board position to tilt, this is just Disconnecting link primary fault can occur, common type is that switching on and off is not in place, can only carry out power failure processing to this kind of failure, by knife Lock switchs to inspecting state, this relates to route, bus etc., and system operation mode just must be taken into consideration.Primary fault can be divided into again General defect and significant deficiency.General defect is for example, the closing position of disconnecting link is equipped with deviation, but can be had no effect on normal with separating brake Operation.In such a case, it is possible to carry out application power failure according to normal blackout procedures.But significant deficiency such as disconnecting link is stuck, has Accident may be caused, this requires immediately treat.So judging the division gate position of disconnecting link by manually estimating there are error, i.e., Make the error of very little, it is also possible to the failure for causing disconnecting link to generate heat.

The other is auxiliary switch contact is switched on or switched off in mechanism case after turning to division gate position by disconnecting link, lead to Secondary circuit is crossed to issue disconnecting link opening and closing lock signal confirms that disconnecting link is in the position of divide-shut brake, the secondary circuit of general disconnecting link in place It can be divided into：Locked loop, control loop, electric motor loop.Locked loop mainly realizes disconnecting link and earthing knife-switch, disconnecting link and switch, knife Anti-misoperation locking between lock and disconnecting link；Control loop realizes the division control of disconnecting link, signal output；Electric motor loop is by control loop The division of disconnecting link is realized in control by the positive and negative rotation of motor.This method can encounter the failure of disconnecting link secondary circuit, and failure Search get up it is often relatively difficult, this is higher to relay protection service personnel's skill requirement.And for secondary circuit failure to be improved Treatment effeciency, need relay protection service personnel to have very high disconnecting link secondary circuit stock of knowledge, according to phenomenon of the failure combination drawing It analyzes, judge range, the failure cause of fault point, list by possibility size, then check one by one, then handle one by one, this The step of kind method, is many and diverse, if operator's violation operation, it may occur however that accident, and by the method for switch contact due to logical It crosses secondary circuit and issues signal, need maintenance personnel that maintenance is repeated several times, maintenance cost is higher, simultaneously because secondary circuit problem Or the mechanical problems such as disconnecting link transmission mechanism, the physical location of disconnecting link and signal in place are not quite identical.

The closing position confirmation that the open isolating switch of namely substation 35kV of the prior art or more uses Completely in place whether means can not accurately reflect disconnecting link opening and closing lock.

Utility model content

In view of the above problems, the utility model provides a kind of for disconnecting link opening and closing location calibration device and position correction knife Brake system overcomes the above-mentioned deficiency of the prior art.

To achieve the goals above, the utility model adopts the following technical scheme：

The utility model provides one kind for disconnecting link opening and closing location calibration device, including：Disconnecting link, position sensor and nothing The division position data of the disconnecting link is received and dispatched in line receiver, the position sensor and wireless receiver communication connection, together Shi Suoshu wireless receiver, which is also used to be communicatively coupled with external data cable, sends the disconnecting link opening and closing position data.

In one embodiment, the position sensor, including wireless transmitter module, accelerometer measurement module and power supply mould Block, the position sensor measures the 3D motion track of the position sensor by the accelerometer measurement module, thus really The fixed position sensor transmits the disconnecting link opening and closing position data in space present position, and to the wireless transmitter module.

In one embodiment, the position sensor is installed on the conductive arm of the disconnecting link closest to the position of dynamic/static contact It sets.

In one embodiment, the power module is for providing working power, power supply to the position sensor for a long time Mode is using at least one of battery power supply, solar powered mode.

In one embodiment, the wireless receiver includes wireless receiving module and position correction module, the position Calibration module is for editing the position sensor in the location of space and the separating brake and closing position of the disconnecting link, institute Wireless receiving module is stated for receiving the disconnecting link opening and closing position data of the position sensor output, and passes through wired or nothing The mode of line transmits the disconnecting link opening and closing position data to outside.

In one embodiment, the wireless receiver is installed on the pedestal of the disconnecting link.

In one embodiment, the position sensor and the wireless receiver are that one-to-one correspondence mode is arranged.

It in one embodiment, further include gyroscope in the accelerometer measurement module.

The utility model embodiment additionally provides a kind of position correction disconnecting link system, and the position correction disconnecting link system includes Any of the above-described kind of device for disconnecting link opening and closing position correction.

In the utility model embodiment, pass through position sensor and wireless receiver communication connection transmitting-receiving disconnecting link opening and closing position Data, while wireless receiver is also used to be communicatively coupled with external data cable and sends disconnecting link opening and closing position data, accurately The accurate location for informing operator's disconnecting link opening and closing, avoids the error manually estimated in the past and auxiliary switch detects inaccuracy Drawback solves the technology for determining position correction switch mechanism division disconnecting link position inaccuracy by estimating in the prior art Problem.

To enable the above objects, features, and advantages of the utility model to be clearer and more comprehensible, preferred embodiment is cited below particularly, and Cooperate appended attached drawing, is described in detail below.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to the scope of the utility model as.In the accompanying drawings：

Fig. 1 is a kind of structural representation for disconnecting link opening and closing location calibration device that the embodiments of the present invention provide Figure；

Fig. 2 is the structural schematic diagram for the accelerometer measurement module that the embodiments of the present invention provide.

Appended drawing reference：

11- position sensor；111- accelerometer measurement module；1111- gyroscope；112- wireless transmitter module；113- electricity Source module；

12- wireless receiver；121- position correction module；122- wireless receiving module.

Specific embodiment

Below in conjunction with attached drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear Chu is fully described by, it is clear that described embodiment is only the section Example of the utility model, rather than whole realities Apply example.The embodiments of the present invention component being usually described and illustrated herein in the accompanying drawings can be come with a variety of different configurations Arrangement and design.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below The range of claimed invention, but it is merely representative of the selected embodiment of the utility model.Based on the utility model Embodiment, those skilled in the art's every other embodiment obtained without making creative work, all Belong to the range of the utility model protection.

It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the present invention, it should be noted that term " in ", "upper", "lower", "left", "right", "inner", The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings or the utility model product The orientation or positional relationship usually put when use, is merely for convenience of describing the present invention and simplifying the description, without referring to Show or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot manage Solution is limitations of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage Solution is indication or suggestion relative importance.

In addition, the terms such as term "horizontal", "vertical", " pendency " are not offered as requiring component abswolute level or pendency, and It is that can be slightly tilted.It is not to indicate the structure if "horizontal" only refers to that its direction is more horizontal with respect to for "vertical" It has to fully horizontally, but can be slightly tilted.

In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition Solve the concrete meaning of above-mentioned term in the present invention.

In addition, the terms such as " input ", " output ", " feedback ", " formation " are understood as describing a kind of optics, electricity variation Or optics, electricity processing.As " formation " only refers to optical signal or electric signal by having occurred after the element, instrument or device Variation optically or electrically so that the optical signal or the electric signal are processed, and then obtain and implements technical solution Or solve signal required for technical problem.

In the attached drawing of specific embodiment of the utility model, for more preferable, clearer description, this is used for disconnecting link opening and closing The working principle of each element in location calibration device and position correction disconnecting link system, the connection of each section in the described device of performance Relationship has only obviously distinguished the relative positional relationship between each element, can not constitute and pass to the signal in element or structure The restriction in defeated direction, the order of connection and Each part size, size, shape.

Embodiment

When it is implemented, one kind provided by the utility model is used for disconnecting link opening and closing location calibration device as shown in Figure 1, packet It includes：Disconnecting link (not shown), position sensor 11 and wireless receiver 12, the position sensor 11 and the wireless receiving The disconnecting link opening and closing position data is received and dispatched in the communication connection of device 12, while wireless receiver 12 is also used to carry out with external data cable Communication connection sends disconnecting link opening and closing position data.The position sensor 11, including accelerometer measurement module 111, wireless transmission Module 112, power module 113, the position sensor 11 measure 111 pieces of the mould measurement position sensors 11 by accelerometer 3D motion track, so that it is determined that the position sensor 11 is in space present position, and passed to the wireless transmitter module 112 Defeated disconnecting link opening and closing position data.The position sensor 11 is installed on the disconnecting link conductive arm closest to dynamic/static contact position.Institute Power module 113 is stated for providing working power to the position sensor 11 for a long time, power supply mode is using battery power supply, the sun At least one of energy power supply mode.

Preferably, the wireless receiver 12 and the equal internal processor of the wireless transmitter module 112, such as single-chip microcontroller, DSP handles chip etc..

More specifically, the wireless transmitter module 112 uses radio receiving transmitting module JF24D module, the JF24D module The function of high frequency keying (GFSK) transmission circuit is incorporated, the transmission rate of JF24D is 1M, and there are 81 channels can arbitrarily be arranged And it does not interfere with each other.Reliable and stable short range data transmission can be reached in crowded ISM band.Work is in global open ISM band exempts from licensing use.

Specifically, in the utility model embodiment, the wireless receiver 12 provided, as shown in Figure 1, the wireless receiving Device 12 includes position correction module 121 and wireless receiving module 122, and the working power of the wireless receiver 12 passes through outside Cabling provides, and is transmitted with external data transmission using cable transmission or other wireless communication modes.For example, working as terminal distance Within 3 kilometers of equipment under test, using the wireless data terminal DTD433 of 433MHz frequency range, when terminal is more than 3 apart from equipment under test Other than kilometer, GPRS data transparent transmission terminal D TP_S09F is selected.

When it is implemented, position correction module 121, is mainly used for editing position of the position sensor 11 locating for space It sets, with the separating brake and closing position of disconnecting link, respectively as origin corresponding with the position sensor 11 and terminal.It is described wireless Receiving module 122 is mainly used for receiving the wirelessly or non-wirelessly position data that the position sensor 11 is sent out, and by wired Or wirelessly to the external division position data for transmitting the disconnecting link.

When it is implemented, being each used for the wireless receiver 12 and the position in disconnecting link opening and closing location calibration device Sensor 11 is that one-to-one correspondence mode is arranged.The wireless receiver 12 is installed on the switch base, and working power is by power transformation Field terminal box cabling provides.

When it is implemented, the position sensor 11 is installed on the conductive arm of the disconnecting link closest to dynamic/static contact position. When installation, disconnecting link is operated respectively to separating brake and closing position first, by the position correction module by the position sensing Spatial position locating for device is set to origin and terminal respectively.

By taking disconnecting link closing operation as an example, specific works are crossed referred to as：When disconnecting link starts to close a floodgate, the accelerometer measurement module 111 measure the position sensor 11 moves from origin to terminal, when the position sensor 11 reaches home and stops, The accelerometer measurement module 111 reports disconnecting link closed position information to the wireless transmitter module 112, then by the wireless hair It penetrates module 112 and sends the data that the position sensor 11 reaches closing position to the wireless receiver 12.It is described wirelessly to connect After receipts device 12 receives data, the data of closing position are reached in relation to disconnecting link described in equipment report to outside by wired mode.

By taking disconnecting link sub-switching operation as an example, when disconnecting link sub-switching operation, the accelerometer measurement module 111 measures institute's rheme It is mobile from terminal to origin to set sensor 11, the position sensor 11 is mobile from terminal to origin position, corresponding knife Lock is rotated from closing position to open position, when the position sensor 11 reaches origin position and stops, the accelerometer Measurement module 111 reports disconnecting link disconnected position information to the wireless transmitter module 112, then by the wireless transmitter module 112 The data that position is opened a sluice gate in the arrival of position sensor 11 are sent to the wireless receiver 12.The wireless receiver 12 receives After data, position is opened a sluice gate to disconnecting link arrival described in external related equipment report by wired mode.

Preferably, the wireless receiver 12 is installed on switch base.

Preferably, for the position sensor 11 and the wireless receiver 12 in disconnecting link opening and closing location calibration device It is arranged for one-to-one correspondence mode.

Specifically, in the utility model embodiment, the accelerometer measurement module 111 provided, as shown in Fig. 2, plus It further include gyroscope 1111 in speed meter measurement module 111.

For example, high-precision gyroscope 1111, accelerometer, geomagnetic field sensors are integrated using JY-901 series module, Using high performance microprocessor and dynamics resolve with Kalman's dynamic filter algorithm, can rapid solving to go out module current Real time kinematics position.

More specifically, filtering uses digital filtering technique, more specifically judges digital filtering algorithm, root using program According to micro-judgment, the maximum deflection difference value (being set as A) that double sampling allows, judgement when detecting new value every time are determined：If this The difference of value and upper sub-value<=A, then this sub-value is effective, if the difference of this sub-value and upper sub-value>A, then this sub-value is invalid, abandons this Sub-value replaces this sub-value with sub-value, and this algorithm can reduce the impulse disturbances error due to caused by accidentalia.

More specifically, when the smoothness requirements of filtering are high, digital averaging filtering method, this method can be used：Continuously take N A sampled value carries out arithmetic average operation, when N value is larger：Signal smoothing degree is higher, but sensitivity is lower；When N value is smaller：Signal Smoothness is lower, but sensitivity is higher.The selection of N value：General flow, N=12；Pressure：N=4.This for power station have with When the signal of machine interference is filtered, error can be a little bit smaller, because being to have an average value the characteristics of such signal, signal is at certain The fluctuation up and down nearby of one numberical range.

More specifically, for the environment close to the magnetic field of high-voltage electricity, high-precision top is integrated using JY-901 series module When spiral shell instrument 1111, accelerometer, geomagnetic field sensors, the digital filtering algorithm used (also known as slides for recurrence average filter method Average filter method).This method：Continuously taking N number of sampled value to regard a queue as, the length of queue is fixed as N, samples every time One new data is put into tail of the queue, and throws away a data (first in first out) of original head of the queue.N number of data in queue into Row arithmetic average operation, so that it may obtain new filter result.The selection of N value：Flow, N=12；Pressure：N=4；Liquid level, N=4 ~12；Temperature, N=1~4.It is this to filter the substation for being readily applicable to alternating current, it can be reduced using this algorithm due to the period Error caused by property magnetic interference.

More specifically, it is slowly tested to need to acquire variation in order to improve tested precision for the disconnecting link system of the utility model Parameter needs to tremble digital filtering algorithm using disappearing in this way, this method：One filtering counter is set, by each sampled value with The currently active value compares：If sampled value=the currently active value, counter O reset.If sampled value, which is more than or less than, currently to be had Valid value, then counter+1, and whether judge counter>=upper limit N (spilling) replaces this sub-value if counter overflow The currently active value, and clear counter.

In this way when measuring disconnecting link opening and closing position data, measured parameter slow for disconnecting link opening and closing change in process has preferably Filter effect, can avoid near the critical value numerical value shake on the repeated on/off bounce of controller or display.

More specifically, inside modules are integrated with attitude algorithm device, cooperate Dynamic Kalman Filtering algorithm, such disconnecting link is dynamic The current pose of accurate output module under state environment.

More specifically, Voltage stabilizing module is carried inside the JY-901 series module of use, two kinds of numbers of serial ports and I2C is supported to connect Mouthful, have GPS concatenation ability.

When it is implemented, the accelerometer measurement module 111 provided can also use in the utility model embodiment The inclinator of profession when the axis in matrix rotate toward a direction, counts and increases, and when rotation direction changes, counts reduction.It counts It is related with the initial position of inclinator.When initializing inclinator, its count value is arranged to 0.By the angle for calculating rotation Degree, can easily measure position and speed.

When it is implemented, inclinator measuring system sensor, inclinator can also be used in the utility model embodiment Measuring system sensor is to install weight in the rotary shaft of encoder using 13 absolute type encoders.Due to gravity, No matter how encoder rotates, and always vertically downward, when testee, which rotates, generates angle displacement, synchronous drive encodes weight Device rotation generates differential seat angle with weight.The differential seat angle that encoder generates exports gray code signal to conversion circuit through photoelectric conversion, Conversion circuit is filtered amplification decoding to input signal, finally obtains an inclined absolute angle.

When it is implemented, in specific implementation can also be (used using the integration IMU of fusion accelerometer and gyroscope 1111 Property measuring unit) equipment.

The utility model embodiment additionally provides a kind of position correction disconnecting link system, and the position correction disconnecting link system solves The technical problem of position correction switch mechanism division disconnecting link position inaccuracy is determined by estimating in the prior art.The knife Brake system includes：Above-mentioned is used for disconnecting link opening and closing location calibration device.

When it is implemented, in the present embodiment, a kind of position correction disconnecting link system is additionally provided, to solve in the prior art The technical problem of position correction switch mechanism division disconnecting link position inaccuracy is determined by estimating.The position correction disconnecting link system System includes above-mentioned for disconnecting link opening and closing location calibration device.

More specifically, described device can measure respectively each phase point of every group of disconnecting link in substation by largely installing Combined floodgate situation constitutes a set of all disconnecting link opening and closing gate position on-line real-time measuremen position calibration systems.

In the utility model embodiment, pass through position sensor and wireless receiver communication connection transmitting-receiving disconnecting link opening and closing position Data are set, while wireless receiver is also used to be communicatively coupled with external data cable and sends disconnecting link opening and closing position data, it is quasi- The accurate location for really informing operator's disconnecting link opening and closing avoids the error manually estimated in the past and auxiliary switch detection inaccuracy The drawbacks of.

Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model is answered described with power Subject to the protection scope that benefit requires.

Claims (10)

1. one kind is used for disconnecting link opening and closing location calibration device, which is characterized in that including：

Disconnecting link, position sensor and wireless receiver, the position sensor and wireless receiver communication connection transmitting-receiving institute The division position data of disconnecting link is stated, while the wireless receiver is also used to be communicatively coupled with external data cable and sends institute State disconnecting link opening and closing position data.

2. being used for disconnecting link opening and closing location calibration device according to claim 1, which is characterized in that the position sensor includes Wireless transmitter module, accelerometer measurement module and power module, the position sensor are surveyed by the accelerometer measurement module The 3D motion track of the position sensor is measured, so that it is determined that the position sensor is in space present position, and to the nothing Line transmitting module transmits the disconnecting link opening and closing position data.

3. being used for disconnecting link opening and closing location calibration device according to claim 2, which is characterized in that the position sensor installation In the disconnecting link conductive arm closest to dynamic/static contact position.

4. being used for disconnecting link opening and closing location calibration device according to claim 2, which is characterized in that the power module is for growing Phase provides working power to the position sensor.

5. being used for disconnecting link opening and closing location calibration device according to claim 4, which is characterized in that the power supply of the power module Mode is using at least one of battery power supply, solar powered mode.

6. being used for disconnecting link opening and closing location calibration device according to claim 1, which is characterized in that the wireless receiver, packet Include position correction module and wireless receiving module, the position correction module is for editing the position sensor locating for the space Position and the disconnecting link separating brake and closing position, the wireless receiving module is for receiving position sensor output The disconnecting link opening and closing position data, and the disconnecting link opening and closing position data is transmitted to outside by wired or wireless mode.

7. being used for disconnecting link opening and closing location calibration device according to claim 1, which is characterized in that the wireless receiver installation In the pedestal of the disconnecting link.

8. being used for disconnecting link opening and closing location calibration device according to claim 1, which is characterized in that the position sensor and institute Stating wireless receiver is that one-to-one correspondence mode is arranged.

9. being used for disconnecting link opening and closing location calibration device according to claim 2, which is characterized in that the accelerometer measurement module It inside further include gyroscope.

10. a kind of position correction disconnecting link system, which is characterized in that including：Knife is used for described in any one of claims 1 to 9 Lock division location calibration device.