CN1255716A - Device and method for controlling open/close of electrical switching device - Google Patents
Device and method for controlling open/close of electrical switching device Download PDFInfo
- Publication number
- CN1255716A CN1255716A CN99125878A CN99125878A CN1255716A CN 1255716 A CN1255716 A CN 1255716A CN 99125878 A CN99125878 A CN 99125878A CN 99125878 A CN99125878 A CN 99125878A CN 1255716 A CN1255716 A CN 1255716A
- Authority
- CN
- China
- Prior art keywords
- signal
- control device
- control
- starter
- motion rule
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/0062—Testing or measuring non-electrical properties of switches, e.g. contact velocity
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
- H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
- H01H9/563—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle for multipolar switches, e.g. different timing for different phases, selecting phase with first zero-crossing
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Keying Circuit Devices (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
Control device for the opening/closing of electrical switchgear such as circuit-breakers, isolators, reclosers and the like, in an electricity distribution and/or transmission network is disclosed.
Description
The present invention relates to a kind of electric switchgear that is used for controlling distribution and the power transmission network for example control device and the method for the open and close of circuit breaker, isolating switch, automatic switch etc.
More particularly, the present invention relates to a kind ofly can regulate the Control Parameter that inputs to starter in real time, thus the control device that the moving component of the switching device that is started by starter can be moved according to required motion rule.
As well-known; the operation of switching device is and for example carries out by control board or by the control signal that the protection logic is sent relevantly; specifically, this signal is sent to starter, and described starter is carried out the switching device that links to each other with it and opened accordingly or closed operation.
At the starter that is generally mechanical type of the prior art that is used for this purpose, can not control starter according to the operation of nonadjustable motion rule and be applied to power on the switching device.Therefore, the behavior of starter is defined as " binary system ", the power that promptly applies or 0, or maximum.This makes starter and oversize for the energy storage system of its energy supply usually, so that during the operation lifetime of switching device, tackle various possible service conditions: in this way, in most of the cases, switching device is provided for the energy more energy more required than its practical operation, this energy efficiency to system has adverse effect, and the high mechanical stress that is added on the switching device owing to the bump when the EO makes the energy that dissipates increase, and has reduced the whole reliability of system.In addition, utilize these starters, in case be activated, just the operation that can not stop having begun, this obstruction improves the co-operation of the circuit-breaker in the electrical network: for example, for the circuit-breaker that starts its operation, if detecting the downstream circuit breaker that is used to fix a breakdown trips, the described circuit-breaker that has started its operation can not be cancelled the operation that it has begun, this will stop its disconnection or cut off the power supply of the fault-free part of electric power system, and interdict the load that links to each other with it without reason.A noticeable aspect is, use this starter with nonadjustable motion rule, disconnection that is obtained or closed procedure (simultaneously for all three-phases) are general to be asynchronous to the phase place in the electrical quantity, and promptly they and electrical network are without any time relationship.This in most of the cases produces transition owing to making in the pre-arcing phenomenon of period of contact with in the electric discharge phenomena repeatedly of off period in electrical network.Specifically, type according to the load in the electrical network, the operation of carrying out in non-the best time can cause the HFO with amplitude higher than the rated value of the electrical quantity in the electrical network, for example, and current value even can increase amplitude than the high several magnitude of load current value.These transitions obviously make electrical network be subjected to huge stress, and may reduce the life expectancy of the equipment that links to each other with electrical network.In addition, under any circumstance, all will cause the bigger wearing and tearing of the contact of switching device itself, thereby reduce its useful life.
In the prior art, in order to make switching device and to use the synchronized of this switching device to operate,, some solutions have been proposed so that limit above-mentioned problem.Should emphasize, disconnect and to think synchronous under the following conditions: with respect to the type of load and itself and electrical network ways of connecting with closed procedure, a desirable tripping operation is set constantly with respect to loadtype and its connected mode in electrical network, be no-voltage for example for capacitive load, for resistance load is the moment that crest voltage occurs, and the moment of EO is dropped near desirable lock in time constantly within the window.At this moment, the transition of acquisition is quite low.
One of solution that is proposed illustrated in United States Patent (USP) 5119260, this patent at problem just disconnect inductive load synchronously about predetermined instant at the electric current natural zero-crossing, avoid overvoltage in this way.In described patent, the moment that is used to operate is provided, this is to measure in one or several previous operation constantly, so that opening operation is remained in window lock in time.In order to consider that the operating time is not constant but according to ambient temperature with disconnect the temperature of coil and change this fact, uses right sensors that these temperature are offered controller.Specifically, controller be equipped with one can the calculating operation time for the system of the variation characteristic of measured temperature.In addition, in order to consider that the operating time for elapsed time between twice consecutive operation at interval and contingent variation, controller also receives the measured value in this time interval, and uses this measured value to utilize a specific predefined function to proofread and correct the operating time of estimating.Then, the behavior of observing according to formerly operating period and think influential parameter, for example temperature and between twice consecutive operation elapsed time, calculating is expected to be for 0 control time.
Therefore, the electric and mechanical behavior of described device for above-mentioned variable accurately known in this solution supposition.These behaviors are to be obtained by the feature measurement that carries out in the test mutually of the sample device that is believed to represent similar switch product.
The major limitation of this solution is the precision of the behavior of the particular electrical circuit circuit breaker that can access.Specifically, consider the difference of the stress that institute may stand during operation lifetime, thereby consideration influences machinery and the electric wearing and tearing of operating time, the precision of these behaviors that obtain is restricted.
In addition, use and to calculate the processor of practical operation time in real time,, only when operation itself finishes, just can calculate the error of appearance about scheduled operating time, thus its term of execution, can not carry out any type of correction.Because the correction that is provided is with respect to previous operational computations, can not guarantee when next operation, also to satisfy synchronous condition.
At last, the fact that emphasize is that the inventor of described device does not have the opening operation of consideration under failure condition, thereby does not have the opening operation of consideration between the transient period of short circuit current.Another kind of solution has been proposed in United States Patent (USP) 5361184, its at problem and circuit breaker or xegregating unit disconnect relevant with the control under the closure state, wherein getting 0 voltage for closure and be the best time constantly, is the best time for disconnecting the moment of then getting 0 electric current.Specifically, in described device, in each operating period used practical operation time of record.In addition, this device is equipped with the device that is used to detect transition, so that estimate whether operation is synchronous.If asynchronous, this of device generation is used to proofread and correct the signal of scheduled operating time and is used for next operation and obtains simultaneous operation.In addition, a kind of suitable ambient compensation system makes and can further proofread and correct, wherein considered the influence to scheduled operating time of temperature and atmospheric pressure.
Therefore the major limitation of above-mentioned solution is, described device depends on circuit-breaker and the isolating switch known case for the behavior that environmental factor produced.In addition, follow the result of previous operation and the adaptively correcting of operating time of carrying out may cause vibration, and can not guarantee to reach synchronous.At last, get 0 voltage when closure, get 0 electric current as the Best Times of operating when disconnecting, this has limited the application of described device, and for example, this is not suitable for the connection inductive load fully.
Utilize this solution, may cause further error by selected and method of synchronization power network signal, described signal or working voltage benchmark, and determine current reference from the phase angle measurement that is considered to constant, perhaps determine moment by no-voltage by one-shot measurement, wherein suppose electrical network be symmetry thereby operating delay 120 degree electrical degrees.The method of (0) is owing to exist under the situation of transient part constantly for this detection reference, and more generally, owing to have the electrical network parameter of harmonic wave or asymmetric component, therefore the voltage of distortion and that system is become is invalid be not suitable for synchronous open failure.
Therefore reach a conclusion, though above-mentioned solution can partly be dealt with problems under specific circumstances, but, can not guarantee on the real time, to reach synchronous, even employing adaptive control, can not work to the operation that is in the progress, and just introduce the correction that next operation is had the calculating of certain effect, this can not fully be controlled.Therefore, they are the control system of open loop basically, wherein use feedback to make control ring form closed loop, and the single operation of its time response ratio is much longer, makes that it is invalid fully.
Main task of the present invention provides a kind of control device that is used for the cut-off/close electric switchgear, it can regulate the parameter that inputs to starter in real time, so that control the power that it applies in each operation constantly, this makes observes required motion rule by the moving component of the switching device of starter startup.Part as this task, one object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device, it can make starter act on of three-phase system and extremely go up, thereby for electric power system generally speaking, can operate in the mode of the best, under the situation of fault, start a starter, thereby only operate an out of order phase, and do not continue to operate trouble-free phase, thereby guarantee the continuity and the reliability of powering.
Another object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device, and it can guarantee the repeatability of the operation that will be carried out, and guarantees that for its operation of carrying out of dissimilar blocking technology of selecting be best.
Another object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device, it can reduce the energy of use in operation, thereby can optimize the size of starter and the size of energy storage system, bring economic interests therefrom.
Another object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device, it can be in the motion of initial conditions and end-state control starter, make and for example can interdict switching device, the energy that minimizing dissipates when bump, perhaps coordinate the operation of a circuit-breaker and other downstream circuit breaker, cancel the operation that has started that no longer needs, guarantee the continuity of powering.
Another object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device; it can control the operating time of the moving component of described switching device; and according to the state of the electrical quantity of electrical network; each is carried out simultaneous operation mutually, and no matter from control flow or the instruction of sending of protection logic constantly.
Another object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device, its simple remodeling can make the synchronous waveform of operation and electrical network under dissimilar electrical networks and loading condition, this device has big flexibility in the use, especially during disengagement failure, can realize synchronously, thereby reduce electric wearing and tearing greatly.
Another object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device, by controlling the motion rule of starter-switching device in real time, can eliminate the voltage and current transition in the electrical network, perhaps at least farthest limit these transitions, thereby ABNORMAL STRESS and electronic stress and thermal stress on the insulation system of minimizing electric component.
Another object of the present invention is to provide a kind of and is used to disconnect and the control device of Closing Switch device, it makes it possible to obtain the operation with the waveform synchronised of electrical network, making increases the reliability of electrical network, increases the electric and mechanical endurance of the switching device in the electrical network simultaneously.
Of the present invention another but be not that last purpose is to provide a kind of and is used to disconnect and the control device of Closing Switch device, it has high reliability, and makes simple, with low cost.
This task, together with above-mentioned with other after the purpose that will be more readily apparent from be the electric switchgear that is used for cut-off/close distribution and power transmission network by a kind of, for example the control device of circuit-breaker, isolating switch, automatic switch etc. is realized, it is characterized in that described control device comprises:
Starter with adjustable motion rule;
Processing and control element (PCE), it receives operational order, and transmits control signal to starter, and described control signal is processed with respect to following factors:
-predetermined normal behaviour;
-about the direct or indirect information of position, speed and the acceleration of the moving component of described switching device;
-with respect to normal behaviour, about the information of the variation of the system of whole starter-kinematic chain-switching device control;
So that realize the required motion rule of described moving component.
Above-mentioned task, together with above-mentioned purpose with other also by a kind of electric switchgear that is used for cut-off/close distribution and power transmission network, for example the control method of circuit-breaker, isolating switch, automatic switch etc. realizes, it is characterized in that described control method may further comprise the steps:
A) send control signal to a starter with adjustable motion rule;
B) directly or indirectly obtain about by the motion of the moving component of the described switch of adjustable starter operation or the information of speed or acceleration, and processing control signals;
C) energy that puts on starter according to described control signal modulation by this way flows, and makes the adjustment starter put on the power on kinematic chain-switchgear system, and obtains the required motion rule of described moving component.
Other features and advantages of the present invention will be seen clearlyer by the explanation of the preferred embodiment that carries out below in conjunction with accompanying drawing, and these embodiment are not construed as limiting the invention only as an example, wherein:
Fig. 1 is the overall calcspar of control device of the present invention;
Fig. 2 is the detailed block diagram of an embodiment of control device of the present invention;
Fig. 3 is the detailed block diagram that is used for the control device and the converting means of device of the present invention;
Fig. 4 is the detailed block diagram of the preferred embodiment of device of the present invention;
Fig. 5 be under normal operating condition voltage-phase to the curve of time;
Fig. 6 is at the curve of the phase place that has electric current under the situation of transition to the time;
Referring to Fig. 1 and Fig. 2, according to the processing and control element (PCE) that the inventive system comprises by label 100 expressions, it receives the operational order of being imported by control board or protection logic 1 at input, and sends control signal 3 at output to starter 2.In an embodiment of device of the present invention, employed starter is advantageously operated according to adjustable motion rule, in this way, can regulate by the power that the kinematic chain 5 that links to each other with it is applied on the switching device 4 by starter, and the method that below using, will describe in detail, can be with respect to different application requirements, the starter-kinematic chain-switchgear system 200 that provides a kind of quilt accurately to control.
Specifically, the starter that relates to is an electromagnetic starter, is that application number is the theme of the european patent application of EP97203501.8-2302, is to be understood that its explanation, and is included in the present patent application as a reference.With reference to described starter only is in order to illustrate, can to use any starter with adjustable motion rule in device of the present invention, for example air starter.
As described as shown in FIG, control device comprises feedback device 6, is used for according to direct or indirect measurement, calculates the position of the motion parts of the switching device that links to each other with starter.Specifically, these devices 6 can comprise position detector, be used to detect the motion of any point of controlled system 200, and send corresponding signal 7, this signal is to the control device 10 of processing and control element (PCE) 100 position of the moving contact of indicator cock device in real time; In addition, can operating speed or acceleration detector, be used for the speed or the acceleration of any point of detection system 200, and send about the speed of moving component or the corresponding information 7 of acceleration to device 10.This detector, no matter it is a position detector, or speed or acceleration detector, can be set at any point of kinematic chain 5 or switching device 4, so that be applicable to special-purpose and needs.
In another embodiment, information about the position of moving component can be used the Mathematical Modeling of controlled system 200 and not use detector (sensorless system) to be provided for control device 10, this model constitutes the part of unit 100, at the signal of its input reception as the function of the Control Parameter of starter, in this case, Control Parameter is supply voltage and the electric current that puts on coil, and the signal of calculating location of the moving contact of indicator cock device is provided in real time to control device 10.If the starter that uses is an air-driven type, Control Parameter can be the pressure and the volume of used compressible fluid.
Specifically, in the of the present invention this device of Fig. 3 explanation, control device 10 comprises calculation element 11, it is in input received signal 7, and by means of suitable integration/differentiate, and send the signal 14 of the motion rule that is illustrated in that moving contact constantly at the control device 13 of the control device 12 of its output divided ring and closed loop.Thereby signal 14 movable member that constitutes switching devices from the initial time of motion to measure constantly the information of motion mode.Open ring control device 11 is relatively represented the signal 14 and the predetermined motion rule of the actual motion rule of moving contact, and sends corresponding reference signal 16 at output to closed-loop control device 13 and comparator device 15.Specifically, this predetermined motion rule is corresponding to the predetermined normal characteristic of whole starter-kinematic chain-switching system.
Closed-loop control device 13 is relatively represented the signal 14 and the reference signal 16 of actual motion rule, and sends corresponding correction signal 18 at output to comparison means 15.Comparison means 15 sends the control signal 19 relevant with the correction signal 18 that receives at its input and reference signal 16 at its output to conversion equipment 20.
In described embodiment, conversion equipment 20 comprises the supply unit 21 that is used for starter, and it can be battery or capacitor; In addition, starter be not electromagnetic type but still be that for example air starter can use compressible fluid plenum that this energy storage device is provided under the controlled situation.
In addition, conversion equipment 20 also comprises modulating device 22, is used to modulate the energy stream that is offered starter by supply unit 21; These modulating devices are offered starter by source current and supply voltage adjustment according to control signal 19 modulation starters itself by device 21 energy stream.Thereby the starter that the electric energy of modulation is converted to mechanical energy is applied to continuously adjustable power on the motion ring that links to each other with it, makes the movable member of switching device move according to required motion rule.
Thereby the device that is provided comprises the open-loop control system according to the normal behaviour of system, opens and/closed procedure according to required mode so that realize.This open-loop control system and closed-loop system are arranged side by side, and described closed-loop system is used to proofread and correct any possible variation with respect to normal behavior, thereby guarantee to realize any required motion rule.Specifically, suppose during operation and control in real time, device of the present invention is by changing its behavior with respect to predetermined normal behaviour, make it possible to accurately to consider to be added on all interference that can influence its response on the control system, i.e. the quantity of the electric and mechanical wear of the influence of environmental parameter, switching device, aging, the operation carried out of institute's elapsed time, control appliance between operation and type etc.
The motion rule can be selected (for example making the required energy minimum of motion) by means of the performance of optimizing starter.Specifically motion rule can be produced by finding the solution " optimization " problem, wherein considers required specific " target " function of constraint calculating.
Closed-loop control system can also for example use general automatic setting program to be optimized, and this program can reduce the sensitiveness to the variation of physical parameter.
The sports rule that can control power that is applied by starter thereby the movable member that can adjust switching device makes and can carry out the current operation that can not carry out of one type of prior art syringe, for example, under the situation of three-phase circuit circuit breaker, the feasible optimum operation that can obtain one pole of control device of the present invention, though remaining other two-phase, this two-phase is not subjected to fault effects in operation, in addition, by adjusting the power that applies by starter, the operation that can stop having begun when the operation that has begun recedes into the background makes described operation reverse even at least in certain time window.This makes can for example carry out the new protection logic with improved harmony between such circuit-breaker; these circuit-breakers in a single day operation begin; just can detect the operation of the downstream circuit breaker of eliminating fault; and cancel described operation; thereby stop circuit-breaker to disconnect without reason and the fault-free of cutting off electrical network power supply partly, needn't have a mind to insert any delay for selection and just can accomplish this point.In a like fashion, when requiring to operate because of transition, controlled circuit-breaker can be after transition in the past destruction operation, thereby do not interdict power supply by the load of this circuit breaker power supply.
Another obvious advantage of the present invention is, the power that device of the present invention is applied by starter by the dissimilar adjustment according to interrupting system can be optimized the motion rule of moving component, thereby follow the track of optimization constantly, in addition, in this way, be delivered to the energy of starter, thereby also be the energy that passes to switching device, can be adjusted well, this not only makes size and its power-supply system can optimize starter, and owing to be added on lower stress on the switching device and lower contact wear, can reduce the energy that dissipates in the bump when EO, therefore, improved the reliability of whole electrical network.
As shown in Figure 4, in the preferred embodiment according to device of the present invention, processing and control element (PCE) 100 also comprises synchronizer 33, its can be provided for synchronized open or the information of Closing Switch device.These synchronizers, the device of phase place that is used for the voltage and current of detection of grid by use, for example current transformer 30 and voltage transformer 31, receive the information 32 of the electrical quantity of following the tracks of electrical network, about this information, synchronizer is by suitable calculating, prediction and the phase place that the detects electric current in succession and 0 value and the moment that maximum occurs of the phase place of voltage, a variation, harmonic component of considering frequency simultaneously and a transient part mutually.In addition, they also calculate null value detection and that calculate and the time between the maximum.
In addition, synchronizer also comprises meter apparatus 34, and it contains the predetermined information of the type of state, load and electrical network relevant for center line, and sends the signal 35 of expression with respect to the ideal operation concluding time of described predetermined information to timing unit 36.In this embodiment, and as illustrated in Figures 5 and 6, operational order 1 is sent to timing unit 36, and this instruction generally is an instruction asynchronous with electric power system.Timing unit 33 sends a corresponding synchronous start-up operation instruction 37 and the signal 35 of expression ideal operation concluding time with respect to this operational order 1 to control unit 10, this synchronic command 37 is delayed the time interval of a time 50 with respect to asynchronous instruction 1, it is normal working time of being scheduled to 51 and expression ideal operation concluding time and the predicted null value in succession or the function of peaked described signal 35, so that first in succession constantly desirable that identification is used to realize simultaneous operation.The required desirable moment 35 obviously is the Best Times that is used to eliminate the operation transition relevant with type, load and the electrical network of this generic operation, as shown in Figure 6, this is constantly not necessarily consistent with null value or maximum, as long as can guarantee described operating in the synchronous window.Thereby control device 10 receives the signal 37 of expression for the Collaborative Control strategy of three-phase, so as to finish for the simultaneous operation of each phase and with the aforesaid operations similar operation.
Another advantage of the present invention is, under the simultaneous operation situation and under the situation according to the motion rule of above-mentioned adjustment movement parts, because the corrective action of above-mentioned device 13, control device 10 is guaranteed executable operations normal time according to expectation; But, if become big in departing from during operation of any point and normal behaviour, thereby make closed-loop control need enough big instruction, then this device can be with the normal characteristic of the mode corrective system of self-organizing.In this case, the normal working time that is suitable for being monitored during operation is redefined with respect to new reference value, and under the situation of simultaneous operation, this new reference time obviously is to become that to can be timing unit 36 available by installing 10.This self-organizing method also uses in the test phase place of device, thereby makes control system proofread and correct normal characteristic with respect to the agenda of particular switch device, makes the actual initial normal characteristic of definition become possibility.
In fact have been noted that, device of the present invention is how to finish its whole invention task and goal of the invention, it makes that regulating the power that is used to movable member is moved that is applied by starter in real time becomes possibility, thereby make moving component according to required motion rule motion, thereby can obtain above-mentioned advantage.
In addition, in above-mentioned preferred embodiment, device of the present invention makes under all kinds of electrical networks and loading condition, even under fault condition, can obtain the simultaneous operation with electrical network.Therefore, according to this device application flexibility, and according to the transition of eliminating or significantly reduce at least the voltage and current of electrical network, and according to limited electronic and thermal stress as can be seen the present invention have other main advantages, insulation system for element that uses in the electric power system and switching device has very big benefit, can improve its useful life and reliability greatly.
Should emphasize that at last device of the present invention is when providing above-mentioned advantage, its manufacture method is at economic aspect also very attractive, and its manufacturing cost can be compared with the circuit-breaker of routine, and is significantly less than conventional method for synchronous.She Ji device has many changes and remodeling in this way, and these are all in design of the present invention.In addition, all details of the present invention can be replaced by other element in the technical elements equivalence.
In fact, material and size can be changed by any way, so that satisfy necessary requirement and state of the art.
Claims (23)
1 one kinds of electric switchgears that are used for cut-off/close distribution and power transmission network, the control device of circuit-breaker, isolating switch, automatic switch etc. for example is characterized in that described control device comprises:
-have a starter of adjustable motion rule;
-processing and control element (PCE), it receives operational order, and transmits control signal to starter, and described control signal is processed with respect to following factors:
-predetermined normal behaviour;
-about the direct or indirect information of position, speed and the acceleration of the moving component of described switching device;
-with respect to normal behaviour, about the information of the variation of the system of whole starter-kinematic chain-switching device control;
So that realize the required motion rule of described moving component.
2 control device as claimed in claim 1 is characterized in that, described starter with adjustable motion rule is an electromagnetic starter.
3 as the described control device of one or several claim of front, it is characterized in that, it comprises position detector, or speed detector, or acceleration detector, these detectors are applicable to motion or speed or the acceleration that detects described controlled system, and send the position of the moving contact of representing switching device or the corresponding signal of speed or acceleration in real time to handling with control unit.
4 control device as claimed in claim 1, it is characterized in that, it comprises a Mathematical Modeling of controlled system, the input of Mathematical Modeling receives the signal as the function of the measured value of the Control Parameter of starter, and in real time to handling the signal of calculating location that sends the moving component of an expression switching device with control unit.
5 as the described control device of one or several claim of front, it is characterized in that, described processing and control unit comprise control device, described control device receives the position of the moving contact of representing switching device in real time directly or indirectly or the operational order and the signal of speed or acceleration at input, and sends control signal corresponding at its output to converter apparatus.
6 control device as claimed in claim 5, it is characterized in that, described control device comprises calculation element, described calculation element receives the position of the moving contact of representing switching device or the signal of speed or acceleration at input, and sends the signal of the actual motion rule of expression motion parts to open ring control device and closed-loop control device at its output.
7 control device as claimed in claim 6, it is characterized in that, described open ring control device is relatively represented the signal and the predetermined motion rule of the actual motion rule of moving contact, and sends corresponding reference signal at output to described closed-loop control device and comparator device.
8 control device as claimed in claim 7 is characterized in that, described closed-loop control device is relatively represented the described signal and the described reference signal of actual motion rule, sends corresponding correction signal at its output to comparator device.
9 control device as claimed in claim 8 is characterized in that, described comparison means compares correction signal and the reference signal that receives at input, and send described control signal at output.
10 as the described control device of one or several claim of front, it is characterized in that described converter apparatus comprises:
-be used for the supply unit of starter; And
-device of the energy stream that provides to starter by supply unit according to the described control signal modulation that receives at input is provided.
11 as the described control device of one or several claim of front, it is characterized in that, also comprises synchronizer, is used for disconnecting or the information of Closing Switch device to handling to provide in the mode with synchronized with control unit.
12 control device as claimed in claim 11 is characterized in that, described synchronizer comprises:
-be used for the device of phase place of the voltage and current of detection of grid;
-be used to predict and the electric current that detects and the zero phase and maximum phase electric current and the zero phase of voltage and the device of maximum phase in succession of voltage;
-be used to calculate at the zero phase that detects and the zero phase and the device in the time interval between the maximum phase of maximum phase and prediction.
13 as one or several the described control device among the claim 11-12, it is characterized in that, described synchronizer comprises meter apparatus, the predetermined information that it contains the type of state, load and electrical network relevant for center line is applicable to timing unit and sends the signal of expression with respect to the ideal operation concluding time of described predetermined information.
14 as one or several the described control device among the claim 11-13, it is characterized in that described synchronizer comprises timing unit, receives at its input:
-be asynchronous operational order with respect to electric power system;
The signal of-expression ideal operation concluding time;
-expression is the null value or the peaked signal of prediction in succession;
And send the corresponding synchronous start-up operation to control device and instruct, this instruction is delayed a time interval with respect to asynchronous instruction, and the described time interval is the normal working time of being scheduled to, the signal of expression ideal operation concluding time and the null value or the peaked function of prediction in succession.
15 1 kinds of distribution and power transmission network, comprise a plurality of circuit-breakers of installing by cascaded structure, it is characterized in that, in described a plurality of circuit-breaker at least one is equipped with the described control device of one or several claim of front, and the disconnection of described at least one circuit-breaker and closed carry out in phase by this way with other circuit-breaker with its upstream or downstream makes and interrupts or oppositely disconnect or closed procedure.
16 1 kinds of electric switchgears that are used for distribution and power transmission network, it is characterized in that, it comprises one or several the described control device as claim 1-14, and the quantity of the power of paying during disconnection and closed procedure is the function of the remainder stroke of moving contact constantly.
17 electric switchgears as claimed in claim 16 is characterized in that, described adjustable starter applies an adjustable power to moving component constantly, thereby can make the energy minimum that dissipates in the bump of closed procedure.
18 1 kinds of electric switchgears that are used for cut-off/close distribution and power transmission network, the control method of circuit-breaker, isolating switch, automatic switch etc. for example is characterized in that described control method may further comprise the steps:
A) send control signal to a starter with adjustable motion rule;
B) directly or indirectly obtain about by the motion of the moving component of the described switching device of adjustable starter operation or the information of speed or acceleration, and processing control signals;
C) energy that puts on starter according to described control signal modulation by this way flows, and makes the adjustment starter put on the power on kinematic chain-switchgear system, and obtains the required motion rule of described moving component.
19 control methods as claimed in claim 18 is characterized in that, comprise being used for obtaining about the motion of moving component or the step b) of speed or acceleration:
-directly or indirectly detect motion or the speed or the acceleration of moving component;
-handle the signal of the actual motion rule of expression moving component according to described detection.
20 control methods as claimed in claim 19 is characterized in that, comprise in the step b) of processing control signals:
The described signal and the signal of representing predetermined motion rule of relatively representing the actual motion rule of moving component, and according to described comparison,
Control signal of-processing.
21 control methods as claimed in claim 19 is characterized in that, comprise in the step b) of processing control signals:
The described signal and the signal of representing predetermined motion rule of relatively representing the actual motion rule of moving component, and according to described comparison,
-handle one to control reference signal;
The signal of-benchmark signal and expression actual motion rule, and according to described comparison,
Correction signal of-processing;
-compare correction signal and reference signal, and according to described comparison,
Control signal of-processing.
22 control methods described in one or several of claim 18-21 is characterized in that described step a) comprises;
The phase place of the voltage and current of-detection of grid;
-prediction and phase place null value or the maximum in succession that detects;
Time between the maximum of the null value of one calculating prediction and the null value of maximum and detection;
-handle by this way and send operational order to starter, make and synchronized ground is operated.
23 control methods as claimed in claim 22, the step that it is characterized in that described processing and send described operational order comprises:
-obtaining the expression signal of desirable EO time, described signal is the function of the predetermined information of state, electrical network and loadtype about center line;
-send the simultaneous operation instruction to starter, described simultaneous operation instruction is delayed a time interval with respect to the asynchronous operation instruction that receives, and the described time interval is normal working time and the signal of expression ideal operation concluding time and the null value in succession or the peaked function of being scheduled to of prediction.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP98204083.4 | 1998-12-03 | ||
| EP98204083A EP1006537B1 (en) | 1998-12-03 | 1998-12-03 | Device for controlling the opening/closing of electrical switchgear and related procedure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1255716A true CN1255716A (en) | 2000-06-07 |
| CN1263056C CN1263056C (en) | 2006-07-05 |
Family
ID=8234422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB991258789A Expired - Lifetime CN1263056C (en) | 1998-12-03 | 1999-12-02 | Device and method for controlling open/close of electrical switching device |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1006537B1 (en) |
| KR (1) | KR20000047875A (en) |
| CN (1) | CN1263056C (en) |
| AT (1) | ATE289449T1 (en) |
| DE (1) | DE69829057T2 (en) |
| ES (1) | ES2237823T3 (en) |
| TW (1) | TW501155B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296760A (en) * | 2013-06-04 | 2013-09-11 | 国家电网公司 | Online monitoring system for high-voltage isolator |
| CN103545133A (en) * | 2013-09-27 | 2014-01-29 | 国家电网公司 | High-voltage alternating-current phased circuit breaker and control method of switching on/off phase selection |
| CN103558777A (en) * | 2013-10-29 | 2014-02-05 | 郭辉 | Coal mine power supply control device capable of being stopped when not used |
| CN106328406A (en) * | 2016-08-26 | 2017-01-11 | 孟玲 | High-voltage alternating current circuit breaker on-off controller |
| CN109256288A (en) * | 2017-07-13 | 2019-01-22 | 施耐德电器工业公司 | Electrical switchgear and method for detecting associated wear |
| CN111816496A (en) * | 2019-04-12 | 2020-10-23 | Abb瑞士股份有限公司 | Synchronous disconnection of circuit breaker |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19963256C1 (en) * | 1999-12-17 | 2001-05-23 | Siemens Ag | HV load switch has drive for second movable contact supplied with release signal when first driven contact reaches given position |
| KR100390547B1 (en) * | 2001-03-31 | 2003-07-07 | 한국전기연구원 | Method for controlling closing of circuit breaker for transmission lines |
| JP5355187B2 (en) * | 2009-04-03 | 2013-11-27 | 株式会社東芝 | Circuit breaker switching control system |
| EP2244094B1 (en) * | 2009-04-22 | 2011-11-09 | Omicron electronics GmbH | Device and method for checking a switching process of an electrical switch |
| US9837229B2 (en) | 2011-06-24 | 2017-12-05 | Tavrida Electric Holding Ag | Method and apparatus for controlling circuit breaker operation |
| KR101580282B1 (en) * | 2015-06-22 | 2016-01-04 | (주)부영이엔지 | Diagnosis method for circuit breaker of power utilities |
| ES2929744T3 (en) | 2017-06-08 | 2022-12-01 | Abb Schweiz Ag | Monitoring device for switching systems |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2601799A1 (en) * | 1976-01-20 | 1977-07-21 | Licentia Gmbh | Switch for electromagnetic contact actuation - has sensor in contactor electromagnetic range whose signals affect electronic switching element |
| US5644463A (en) * | 1992-10-20 | 1997-07-01 | University Of Washington | Adaptive sequential controller with minimum switching energy |
| DE69619367T3 (en) * | 1995-05-15 | 2006-02-02 | Cooper Industries, Inc., Houston | CONTROL PROCESS AND DEVICE FOR SWITCH DRIVE |
-
1998
- 1998-12-03 DE DE69829057T patent/DE69829057T2/en not_active Expired - Lifetime
- 1998-12-03 EP EP98204083A patent/EP1006537B1/en not_active Expired - Lifetime
- 1998-12-03 ES ES98204083T patent/ES2237823T3/en not_active Expired - Lifetime
- 1998-12-03 AT AT98204083T patent/ATE289449T1/en not_active IP Right Cessation
-
1999
- 1999-11-11 TW TW088118962A patent/TW501155B/en not_active IP Right Cessation
- 1999-12-02 CN CNB991258789A patent/CN1263056C/en not_active Expired - Lifetime
- 1999-12-03 KR KR1019990054628A patent/KR20000047875A/en not_active Application Discontinuation
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296760A (en) * | 2013-06-04 | 2013-09-11 | 国家电网公司 | Online monitoring system for high-voltage isolator |
| CN103545133A (en) * | 2013-09-27 | 2014-01-29 | 国家电网公司 | High-voltage alternating-current phased circuit breaker and control method of switching on/off phase selection |
| CN103558777A (en) * | 2013-10-29 | 2014-02-05 | 郭辉 | Coal mine power supply control device capable of being stopped when not used |
| CN103558777B (en) * | 2013-10-29 | 2016-06-08 | 郭辉 | Namely the non-use in colliery have a power failure source control device |
| CN106328406A (en) * | 2016-08-26 | 2017-01-11 | 孟玲 | High-voltage alternating current circuit breaker on-off controller |
| CN109256288A (en) * | 2017-07-13 | 2019-01-22 | 施耐德电器工业公司 | Electrical switchgear and method for detecting associated wear |
| CN111816496A (en) * | 2019-04-12 | 2020-10-23 | Abb瑞士股份有限公司 | Synchronous disconnection of circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1006537B1 (en) | 2005-02-16 |
| EP1006537A1 (en) | 2000-06-07 |
| ATE289449T1 (en) | 2005-03-15 |
| KR20000047875A (en) | 2000-07-25 |
| ES2237823T3 (en) | 2005-08-01 |
| DE69829057T2 (en) | 2005-12-29 |
| TW501155B (en) | 2002-09-01 |
| CN1263056C (en) | 2006-07-05 |
| DE69829057D1 (en) | 2005-03-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1263056C (en) | Device and method for controlling open/close of electrical switching device | |
| US10866284B2 (en) | Temperature-based electromagnetic switching | |
| CN1096094C (en) | Electrical switchgear with synchronous control system and actuator | |
| CN105591502B (en) | Modular switching device | |
| US10074497B2 (en) | Operator coil parameter based electromagnetic switching | |
| CA2378120C (en) | Electrical switchgear with synchronous control system and actuator | |
| US9806641B2 (en) | Detection of electric motor short circuits | |
| US10141143B2 (en) | Wear-balanced electromagnetic motor control switching | |
| RU2563970C2 (en) | Circuit breaker control device and control methods | |
| KR101197576B1 (en) | Online Intelligent Special Protection Scheme using PMUPhasor Measurement Units Data in Power Systems | |
| CA2612821C (en) | Controlled switching device | |
| CN1197104C (en) | Actuation and control device for electric switchgear | |
| US20160134206A1 (en) | 5-pole based wye-delta motor starting system and method | |
| CN101521407A (en) | Three-segment out-of-step self-adaptive disconnecting method | |
| US10033194B2 (en) | Intelligent electrical power network device | |
| CA2211907A1 (en) | Dynamic mechanically switched damping system and method for damping power oscillations using the same | |
| CN110556267A (en) | Self-adaptive synchronous control method of parallel three-phase alternating current contactor | |
| CN111261454B (en) | Method for reducing opening and closing time dispersion of phase-controlled circuit breaker with electromagnetic operating mechanism | |
| Zeni et al. | Control of VSC-HVDC in offshore AC islands with wind power plants: Comparison of two alternatives | |
| EP1006539B1 (en) | Control and monitoring device for the opening/closing of operating elements | |
| US20200379046A1 (en) | Diagnostic solutions for medium voltage switching apparatuses | |
| US11830693B2 (en) | Predicting zero-crossings for point-on-wave (POW) switching techniques | |
| Tobias et al. | Impact of operating mechanism type on MV vacuum circuit-breaker reliability | |
| AU2018362620A1 (en) | Switch system and method for switching a switch | |
| Junghahn | Power quality and system availability and reliability maximized by using high-speed transfer systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20060705 |
|
| CX01 | Expiry of patent term |