CN102148529B

CN102148529B - Control device and control method thereof for intelligently supplying power to circuit breaker control unit

Info

Publication number: CN102148529B
Application number: CN 201110093319
Authority: CN
Inventors: 江红; 张佳; 柴爱军; 徐泽亮
Original assignee: Noark Electrics Shanghai Co Ltd
Current assignee: Noark Electrics Shanghai Co Ltd
Priority date: 2011-04-14
Filing date: 2011-04-14
Publication date: 2013-06-05
Anticipated expiration: 2031-04-14
Also published as: CN102148529A

Abstract

The invention discloses a control device for intelligently supplying power to a circuit breaker control unit, which comprises a current transformer and an auxiliary power supply, wherein the current transformer and the auxiliary power supply provide electrical energy for an electronic controller by a power supply. The electronic controller processes a current signal detected by a signal acquirer, and an information processing unit transmits a control instruction by an execution driving unit according to a fault current signal to drive the tripping operation of a circuit breaker. The power supply comprises a main loop current detection circuit and an auxiliary power supply detection circuit which are connected with the transformer and the auxiliary power supply respectively. The output ends of the main loop current detection circuit and the auxiliary power supply detection circuit are connected with the signal input end of the information processing unit respectively. After being powered on, the power supply provides the electrical energy required by a basic protection function for the electronic controller, and provides the electrical energy required by an auxiliary protection function for the electronic controller in stages according to a current detection signal of a self-generating power supply and a detection signal indicating whether the auxiliary power supply is switched on or not, so that the electronic controller can automatically realize switching between a low-power consumption operating mode and a high-power consumption operating mode.

Description

Control device and control method thereof to the circuit breaker control unit intelligent power supply

Technical field

The present invention relates to the control device that a kind of electric power of the circuit breaker for distribution line is controlled, especially for control device and the control method thereof of low-power consumption and quick starting power supply are provided for the controller that obtains the intelligent circuit breaker of power supply from current transformer.

Background technology

Along with the national economy develop rapidly, the user is to the demand of electric power also rapid growth, and is more and more higher to grid stability and reliability requirement.Intelligent switch electrical equipment, it is the important devices that realizes the Intelligent Low Voltage Distribution System terminal, satisfy the growth requirement of intelligent grid distribution system, can be widely used in place and the isolation power consumption equipment higher to electrical safety, reliability requirement such as important office building, department store, dwelling house.Intelligent circuit breaker is a kind of limit switch electrical equipment in Intelligent Low Voltage Distribution System, is characterized in having adopted the intelligent electrical apparatus release take microprocessor or single-chip microcomputer as core.Along with the fast development of the demands such as the selective protection of intelligent grid distribution system, information system management, it is more and more that function is controlled in the protection of intelligent circuit breaker, controls in function in numerous protections, comprises basic defencive function and miscellaneous function two large divisions.The most basic necessary defencive function that basic defencive function need to just must possess after in a single day circuit breaker enters operating state all the time, these functions are as the dropout defencive functions such as overload, short circuit, monitoring, diagnosing function etc.Miscellaneous function allows not necessarily to possess all the time after circuit breaker enters operating state, and even some function can also be given tacit consent to vacancy, and these functions are as Information functions such as each electrical parameters in communication or time display circuit etc.Along with increasing of function controlled in the variation protection, more and more higher for the requirement of the control device that power supply is provided for breaker controller (general designation of each signal and protection control circuit).At first be that requirement provides the loop apparatus of power supply to have low-power consumption, to satisfy the requirement of Intelligent switch electric appliance energy-saving; Next is the start-up time that the control device that power supply is provided is shortened in requirement, refer to the settling time of the required power supply of circuit breaker realization protection control function start-up time, controller is started working as early as possible, and can start the protection control function of circuit breaker under the very low condition of main circuit current; The 3rd is that requirement provides the control device of power supply to have high reliability, and in a single day circuit breaker enters operating state just must guarantee all the time low-power consumption power supply to the controller of circuit breaker.The controller of Intelligent switch electrical equipment is the basis of realizing the demands such as the protection of intelligent grid distribution system full selectivity, informationization; the reliability of controller has determined the reliability of Intelligent switch electrical equipment to a great extent, and the reliability of breaker controller depends on the reliability that the control device of power supply is provided for it.

Common breaker controller only has overload, short-circuit protection function; and along with the fast development of the intelligent demand of circuit breaker; require circuit breaker on the basis that keeps original basic defencive function; expand more new function; be miscellaneous function, these miscellaneous functions mainly comprise advanced security defencive function and intelligentized management function.Wherein the advanced security defencive function is as: the inefficacy of information process unit (MCU crashes and program fleet) safeguard protection, signal picker (6a; 6b, 6c) inefficacy (secondary winding output open circuit) and the fail safe protection of the fail safe protection of signal conditioning circuit, magnetictrip and Execution driven unit etc.Wherein intelligentized management function is as auxiliary communication function, ancillary control function, indicating alarm function etc.These miscellaneous functions that realize by electronic circuit all need power supply that electric energy is provided, so miscellaneous function needs the power of power supply larger more at most.The power supply that existing breaker controller is used adopts authigenic power supply usually, namely obtain power supply from current transformer, need the requirement of long-time power supply with the controller that satisfies circuit breaker, the operation principle of authigenic power supply is well-known, because it is to draw electric power by the current transformer that is arranged on the circuit breaker input side from major loop, so when the electric current that flow through the circuit breaker main circuit hour, the electric power that authigenic power supply draws seldom, the normal operation of controller can not be guaranteed, the requirement of quick startup can not be satisfied.

In order to address this problem, one of solution of traditional circuit breaker is to rely on the authigenic power supply power supply, and in conjunction with the scheme of the low performance microprocessor that adopts low-power consumption as the microprocessor of controller, to satisfy the requirement of fast powering-up, but low in energy consumption due to microprocessor, performance is low, this existing program can't adapt to intelligent grid to multi-functional, the multitask requirement of breaker controller.Another kind of solution is the microprocessor that adopts than possessing in the past more function and stronger disposal ability; to satisfy the demand of intelligent grid; but the power consumption of the controller of employing Multifunctional microprocessor is also higher; therefore authigenic power supply might occur not mating because of power consumption the phenomenon that causes controller to work, and even causes losing defencive function as the intelligent breaker of electric prospection and control appliance.Also having a kind of Typical Representative such as publication number of solution is the Chinese utility model patent of CN201185350Y, adopt storage battery as power supply, current transformer first is filled with storage battery from the electric power that main circuit draws, the circuit control device that jointly is made of the storage battery summation current transformer is again powered to the controller of circuit breaker, when the electric current that flows through circuit breaker is larger by current transformer power supply, when the electric current that flows through circuit breaker hour by storage battery power supply.But capacity and the volume of storage battery are larger, do not meet the Miniaturization Design requirement of product.Publication number is that the patent of invention of CN101562354A has also adopted battery powered method, for reducing power consumption and extending battery life, for keypad and other non-essential functional units, only just keypad and other functional units is powered when having button to trigger.But all there is the high problem of power consumption in above-mentioned way, and the useful life of storage battery or battery is limited, thus can improve the use cost of circuit breaker, and may pollute environment.

Summary of the invention

the object of the invention is to overcome the defective of above-mentioned prior art, a kind of control device to the circuit breaker control unit intelligent power supply and control method thereof are provided, detection by the circuit operational factor, adopt the intelligent circuit breaker of control device of the present invention and control method can automatically to select whether and when to access accessory power supply except authigenic power supply, significantly shorten the basic defencive function of controller required start-up time, the mode that drives by classification, make in the situation that main circuit current is less also can protect system comprehensively, low in energy consumption, start fast, reliability is high.

For achieving the above object, the present invention has adopted following technical scheme.

accessory power supply beyond current transformer 2 and described current transformer 2 is used for providing electric energy through power device 3 to electronic controller 4 respectively, signal picker 6a, 6b, 6c is arranged on the major loop A of distribution line 1, and B on C, is used for the major loop A that will detect, B, the phase current signal of C is transported to electronic controller 4, electronic controller 4, current signal by 6 inputs of 7 pairs of signal pickers of signal conditioning circuit is processed, and 9 sending control command according to the fault current signal through the Execution driven unit by information process unit 8, the actuator 10 that drives breaker body 11 is carried out the tripping operation action, and power device 3 comprises main circuit current testing circuit 6, accessory power supply testing circuit 14 and two are power supply 1 and power supply 2 independently, the input S+ of main circuit current testing circuit 6, S-and signal picker 6a, 6b, the output of the output of 6c or current transformer 2 connects, the input P+ of accessory power supply testing circuit 14, P-is connected with accessory power supply input interface 5, the output 601 of main circuit current testing circuit 6, the output 145 of accessory power supply testing circuit 14 respectively with the signal input part 131 of the information process unit 8 of electronic controller 4, 132 connect, the power on signal of described power device 3 response main circuit current testing circuits 6, provide basic defencive function required electric energy by power supply 1 to electronic controller 4, and when the input signal of the input signal of main circuit current testing circuit 6 or accessory power supply testing circuit 14 surpasses the threshold value of setting, described power device 3 provides assistant protection function required electric energy by power supply 2 from trend electronic controller 4, make described electronic controller 4 automatically realize conversion between low-power consumption and two kinds of mode of operations of high power consumption.

The information process unit 8 of described electronic controller 4 includes the low-power consumption information process unit 19 of first little processing CPU1 and contains the full speed information process unit 20 of the second microprocessor CPU 2, described power device 3 power supplys 1 comprise that the first power supply output module 31, power supply 2 comprise second source output module 17, and power device 3 also comprises the Power Entry Module 30 that contains accessory power supply input interface 5; Wherein the output V1 of the first power supply output module 31 is connected with the power input 130 of low-power consumption information process unit 19 and first microprocessor CPU1 thereof, the first control output end 133 of first microprocessor CPU1 is connected with the control input end EN of second source output module 17, and the output V2 of second source output module 17 is connected with the power input 150 of full speed information process unit 20 and the second microprocessor CPU 2 thereof; The signal input part of described low-power consumption information process unit 19 is connected with the output of signal conditioning circuit 7, and the output of the output of low-power consumption information process unit 19 and the information process unit of being connected 20 is connected with the input of Execution driven unit 9 respectively.

Described accessory power supply testing circuit 14 comprises the first resistance 141, optocoupler 142, the second resistance 143.The positive pole of the input of optocoupler 142 is connected with an end of the first resistance 141, and the other end P+ of the first resistance 141 is the input P+ of accessory power supply testing circuit 14, the positive pole of P-, and it is connected with the positive pole of accessory power supply input interface 5; The negative pole P-of the input of optocoupler 142 is the input P+ of accessory power supply testing circuit 14, the negative pole of P-, and it is connected with the negative pole of accessory power supply input interface 5; The minus earth of the output of optocoupler 142, one end of the positive pole of the output of optocoupler 142 and the second resistance 143, the secondary signal input 132 of first microprocessor CPU1 are connected in parallel, and the other end of the second resistance 143 is connected with the anodal V1 of the first power supply output module 31; Input P+ when auxiliary detection circuit (14), the signal of P-input is during greater than the threshold value set, accessory power supply testing circuit 14 is by the secondary signal input 132 output control signals of output 145 to first little processing CPU1, first microprocessor CPU1 is by the control input end EN input high level signal of the first control output end 133 to second source output module 17, and the output V2 of second source output module 17 is to the second microprocessor CPU 2 output services voltages.

Described main circuit current testing circuit 6 comprises at least one acquisition module 60 and an ADC modular converter 63; Input S+ when main circuit current testing circuit 6, the signal of S-input is during greater than the threshold value set, main circuit current testing circuit 6 is by the first signal input 131 output control signals of output 601 to first microprocessor CPU1, first microprocessor CPU1 is by the control end EN input high level signal of the first control output end 133 to second source output module 17, and the output V2 of second source output module 17 is to the second microprocessor CPU 2 output services voltages.

described Power Entry Module 30 comprises accessory power supply input interface 5, accessory power supply rectification circuit 32 and authigenic power supply rectification circuit 33, wherein the input of accessory power supply rectification circuit 32 is connected with accessory power supply input interface 5, the minus earth of the output of accessory power supply rectification circuit 32, the input Q+ of authigenic power supply rectification circuit 33, Q-is connected with the output of current transformer 2, the minus earth of the output of authigenic power supply rectification circuit 33, the positive pole of the output of the positive pole of the output of accessory power supply rectification circuit 32 and authigenic power supply rectification circuit 33 is connected in parallel and forms the cathode output end V of Power Entry Module 30.

Described low-power consumption information process unit 19 comprises first microprocessor CPU1 and working state indicating circuit 18, operating state indicating module 18 is connected with the second control output end 134 of first microprocessor CPU1, is used for type or the operating state of the fault of demonstration low-power consumption information process unit 19; Described full speed information process unit 20 comprises second microprocessor CPU 2 and at least one miscellaneous function module 16, and each miscellaneous function module is connected with the second microprocessor CPU 2 respectively, and works under the control of the second microprocessor CPU 2.

Described the first power supply output module 31 is constant voltage output circuit, so that the first power supply output module 31 output services voltage all the time; Perhaps, the first power supply output module 31 is for realizing the circuit of voltage transformation, at second source output module 17 not during output services voltage, the first power supply output module 31 keeps output services voltage, when second source output module 17 output services voltage, the first power supply output module 31 is converted to not output services voltage.

Described second source output module 17 is for realizing the circuit of voltage transformation; When the control input end of second source output module 17 EN was high level, second source output module 17 was the voltage that is fit to and exports from voltage output end OUT the voltage transitions of voltage input end IN; When its control input end EN is low level, voltage output end OUT Non voltage output.

Comprise the power supply modulate circuit that the voltage V that makes its output equals the input voltage of electronic controller 4 in single CPU situation in Power Entry Module 30; Perhaps in the first power supply output module 31 and/or second source output module 17, the voltage control modulate circuit is set.

A data channel setting is used for starting and controls and exchanges data use between described first microprocessor CPU1 and the second microprocessor CPU 2.

The information process unit 8 of described electronic controller 4 comprises a microprocessor CPU, and this microprocessor CPU has low power mode of operation and two kinds of running statuses of full speed operation pattern; Described power device 3 also comprises the Power Entry Module 30 that contains accessory power supply input interface 5, and the output V of Power Entry Module 30 is connected with the power input of information process unit 8 and CPU thereof; The output of accessory power supply testing circuit 14 is connected with the 4th signal input part of information process unit 8, whether there is accessory power supply normally to access for detection of accessory power supply interface 5, if have, accessory power supply testing circuit 14 indication information processing units 8 and CPU thereof are transformed into the running status of full speed operation pattern; The output of main circuit current testing circuit 6 is connected with the 5th signal input part of information process unit 8, for detection of the size of current in major loop A, B, C, if the electric current in major loop A, B, C is greater than the threshold value of setting, main circuit current testing circuit 6 indication information processing units 8 are transformed into the running status of full speed operation pattern.The 3rd signal input part of information process unit 8 is connected with the output of signal conditioning circuit 7, and the output of information process unit 8 is connected with the input of Execution driven unit 9.

Described accessory power supply testing circuit 14 comprises the first resistance 141, optocoupler 142, the second resistance 143; The positive pole of the input of optocoupler 142 is connected with an end of the first resistance 141, the other end P+ of the first resistance 141 is the input P+ of accessory power supply testing circuit 14, the positive pole of P-, it is connected with the positive pole of accessory power supply input interface 5, the negative pole P-of the input of optocoupler 142 is the input P+ of accessory power supply testing circuit 14, the negative pole of P-, it is connected with the negative pole of accessory power supply input interface 5; The minus earth of the output of optocoupler 142, an end of the positive pole of the output of optocoupler 142 and the second resistance 143, the 4th signal input part of information process unit 8 are connected in parallel, and the other end of the second resistance 143 is connected with the positive pole of the power output end of power device 3.Described main circuit current testing circuit 6 comprises at least one acquisition module 60 and is connected an output 601 of the described ADC modular converter 63 of ADC modular converter 63 and is connected with the 5th signal input part of information process unit 8.

The control method of a kind of control device to the circuit breaker control unit intelligent power supply of the present invention comprises following control step:

(1) beginning---breaker body 11 closes a floodgate or accessory power supply is connected;

(2) system power-up---current transformer 2 is responded to generation current from major loop A, B, C, and this electric current is input to power device 3; Or the accessory power supply input current is to power device 3;

(3) power supply 1 is ready---and the first power supply output module 31 is to low-power consumption information process unit 19 output services voltage V1;

(4) CPU1 starts---and the first microprocessor CPU1 of low-power consumption information process unit 19 starts working;

(5) CPU1 full speed operation---first microprocessor CPU1 and signal conditioning circuit 7, Execution driven unit 9, accessory power supply testing circuit 14, main circuit current testing circuit 6 enter operating state;

(6) is accessory power supply normal?---accessory power supply testing circuit 14 judgement accessory power supply input interfaces 5 have or not the normal voltage input, if having be transferred to step 8, if nothing forwards next step 7 to;

(7) main circuit current＞set point?---main circuit current testing circuit 6 judges electric current in major loop A, B, C whether greater than the threshold value of setting, if be less than or equal to go back to previous step 6, if greater than would forward next step 8 to;

(8) starting power supply 2---first microprocessor CPU1 controls second source output module 17 to full speed information process unit 20 output services voltage V2;

(9) starting CPU2---the second microprocessor CPU 2 of information process unit 20 enters operating state at full speed;

(10) start all the other miscellaneous functions---the second microprocessor CPU 2 and at full speed under information process unit 20 each miscellaneous function module all start and enter operating state, signal conditioning circuit 7, Execution driven unit 9 and first microprocessor CPU1 still keep operating state or low-power consumption information process unit 19 state that quits work.

(3) power supply is ready---and power device 3 is to information process unit 8 output services voltage V;

(4) CPU starts---and the microprocessor CPU of information process unit 8 is started working;

(5) the CPU low power mode of operation---microprocessor CPU enters low power mode of operation, and signal adjustment circuit 7, Execution driven unit 9, accessory power supply testing circuit 14, main circuit current testing circuit 6 enter operating state;

(6) is accessory power supply normal?---accessory power supply testing circuit 14 judgement accessory power supply input interfaces 5 have or not the normal voltage input, if having be transferred to step 8, if without would forward next step 7 to;

(8) CPU enters the high speed operation pattern---and microprocessor CPU enters the full speed operation mode operation conditions;

(9) starting all the other miscellaneous functions---each miscellaneous function modules under information process unit 8 all start and enter operating state.

Control device and control method thereof to the circuit breaker control unit intelligent power supply of the present invention both can enter low-power consumption mode automatically when the authigenic power supply power supply descends, can start fast basic defencive function with the controller of guaranteeing circuit breaker with very little power consumption; Also can automatically enter the general protection pattern when authigenic power supply is sufficient; normally move with basic defencive function and the comprehensive of each miscellaneous function who guarantees controller; can also intellectuality realize authigenic power supply and accessory power supply simultaneously or select a power supply; not only avoided the unmatched hidden danger of power consumption; and when controller adopts the authigenic power supply power supply; relatively decrease the present required condition of work of product; can start under the very low condition of main circuit current, thereby play more timely, more fully protective effect.More intense or when having adopted accessory power supply when the power supply capacity of authigenic power supply, by the intelligent grading control to microprocessor, guarantee that the controller of circuit breaker operates at full capacity, to satisfy the demand of intelligent grid, have advantages of start fast, power is strong and the double insurance reliability is high.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the control device to the circuit breaker control unit intelligent power supply of the present invention.

Fig. 2 is circuit and the annexation schematic diagram thereof of the information process unit 8 in power device 3 and electronic controller 4 in the control device of the present invention of Fig. 1, and the information process unit 8 in figure adopts the first embodiment of dual micro processor structures.

Fig. 3 is the accessory power supply testing circuit 14 of power device 3 in the control device of the present invention of Fig. 2 and the circuit diagram of main circuit current testing circuit 6, and the information process unit 8 that connects in figure is the first embodiment of dual micro processor.

Fig. 4 is the circuit diagram of the Power Entry Module 30 of power device 3 in the control device of the present invention of Fig. 2, and the Power Entry Module in figure is applicable to information process unit 8 and is the first embodiment of dual micro processor.

Fig. 5 is the control method block diagram of the control device to the circuit breaker control unit intelligent power supply of the present invention, is that flow process is carried out in the control of the first embodiment of dual micro processor corresponding to information process unit 8.

Fig. 6 is the control method block diagram of the control device to the circuit breaker control unit intelligent power supply of the present invention, is that flow process is carried out in the control of the second embodiment of single microprocessor corresponding to information process unit 8.

Embodiment

Below in conjunction with embodiment shown in the drawings, further describe the present invention to the control device of circuit breaker control unit intelligent power supply and the embodiment of control method thereof, embodiments of the present invention are not limited to following examples.

Fig. 1 is the exemplary enforcement overall structure schematic diagram of the control device to the circuit breaker control unit intelligent power supply of the present invention.As shown in Figure 1, the breaker body 11 that is arranged in distribution line 1 comprises actuator 10, current transformer 2, is used for induction generation current from major loop (A, B, C), and this electric current is input to power device 3; Power device 3 is used for the current conversion of current transformer 2 inputs is become direct current, and this direct current is supplied with electronic controller 4 as the power supply of electronic controller 4, is included as Execution driven unit 9 power supply is provided.Signal picker (6a, 6b, 6c) is used for gathering the phase current signal in major loop (A, B, C), and this circuit operating parameter signal is sent to electronic controller 4; Electronic controller 4 is used for analyzing and processing by the current signal of signal picker (6a, 6b, 6c) input, and sends control command through Execution driven unit 9 to actuator 10; Actuator 10 is used for the mechanical part execution tripping operation action according to the order-driven breaker body 11 of electronic controller 4.When signal picker (6a, 6b, 6c) collected the fault current signal from major loop (A, B, C), electronic controller 4 sent trip command to actuator 10, and actuator 10 is controlled breaker body 11 according to trip command and carried out the tripping operation action.As shown in Figure 1, electronic controller 4 also comprises a display unit 12, the input of display unit 12 is connected with an output interface of information process unit 8, to show the operation conditions of information process unit 8, even can show the overall operation situation of the controller of circuit breaker.

Fig. 2 is circuit and the annexation schematic diagram thereof of the information process unit 8 in power device 3 and electronic controller 4 in the control device of the present invention of Fig. 1, information process unit 8 in figure adopts the first embodiment of dual micro processor structure, and this scheme has low power mode of operation and two kinds of running statuses of full speed operation pattern.The first embodiment of information process unit 8 has two information process units, one of them information process unit that contains first microprocessor CPU1 is the low-power consumption information process unit, and another information process unit that contains the second microprocessor CPU 2 is high power consumption information process unit at full speed.Correspondingly, the information process unit 8 in Fig. 1 can adopt the second embodiment of single microprocessor CPU, and the single microprocessor CPU of this scheme has low power mode of operation and two kinds of running statuses of full speed operation pattern.For the CPU that possesses simultaneously low power mode of operation and high power consumption high speed operation pattern, can realize the second embodiment of the present invention with single CPU, that is to say, realize the function of CPU1 with the low power mode of operation of this CPU, realize the function of CPU2 with the high power consumption mode of operation of CPU.

Authigenic power supply is comprised of the current transformer 2 in Fig. 1 and power device 3, current transformer 2 with major loop (A, B, C) as a winding, its secondary winding connects the input of power device 3, and when having electric current to flow through in major loop (A, B, C), secondary winding produces induced current.Common power device generally has rectification function and voltage-regulation function, convert direct current to the alternating current with the secondary winding in current transformer input, be electronic controller 4 power supplies after again direct current being adjusted to suitable voltage, this power supply that only has rectification and voltage-regulation function is referred to as the power supply modulate circuit usually, and the power device of the present invention 3 shown in Fig. 1,2 has not only comprised the function of existing power supply modulate circuit, but also has comprised intelligentized power supply test function and power supply output control function.Described power supply test function is realized by accessory power supply testing circuit 14 and main circuit current testing circuit 6, and the power supply output control function is realized by the first power supply output module 31 (being called for short power supply 1) and second source output module 17 (being called for short power supply 2).By intelligentized power supply test function and power supply output control function, solved well the problem that the electric current of prior art in major loop (A, B, C) can not start than hour electronic controller 4.Although and eliminated prior art with accessory power supply (as battery, storage battery etc.) but the potential safety hazard that do not have monitoring function to bring due to the inefficacy to accessory power supply.Be at major loop (A, B, C) for the controller that overcomes existing circuit breaker and can not start under little current conditions or the defective of cisco unity malfunction, the electronic controller 4 of apparatus of the present invention provides two kinds of execution modes.In Fig. 1, the information process unit 8 of electronic controller 4 comprises the first embodiment that adopts dual micro processor and the second embodiment that adopts single microprocessor CPU, the first embodiment is as shown in Fig. 2-4, its electronic controller 4 comprises 2 information process units, one of them information process unit 19 is operated in low power mode of operation, only realizes basic defencive function; Another information process unit 20 is operated in high power consumption full speed operation pattern, not only has basic defencive function, but also has various miscellaneous functions.The electronic controller 4 of the second embodiment includes only an information process unit 8; information process unit 8 has low power mode of operation and two kinds of running statuses of full speed operation pattern; low power mode of operation includes only basic defencive function; and the full speed operation pattern not only comprises basic defencive function, but also comprises various miscellaneous functions.

The below 1 to 4 illustrates control device of the present invention and operation principle thereof by reference to the accompanying drawings take the electronic controller 4 of the first embodiment as example.Electronic controller 4 comprises signal conditioning circuit 7, contain the low-power consumption information process unit 19 of first little processing CPU1, the full speed information process unit 20 that contains the second microprocessor CPU 2 and Execution driven unit 9.The power device 3 that matches with the electronic controller 4 of the first embodiment in Fig. 2 comprises the first power supply output module 31, second source output module 17, contains the Power Entry Module 30 (seeing Fig. 4) of accessory power supply input interface 5, accessory power supply testing circuit 14 and main circuit current testing circuit 6 (seeing Fig. 3).The input of signal conditioning circuit 7 and signal picker (6a, 6b, output 6c) connects, the output of signal conditioning circuit 7 is connected with the signal input part of low-power consumption information process unit 19, the output of the output of low-power consumption information process unit 19 and the information process unit of being connected 20 is connected with the input of Execution driven unit 9 respectively, and the output of Execution driven unit 9 is connected with the input of actuator 10; The output V1 of the first power supply output module 31 is connected with the power input 130 of low-power consumption information process unit 19 and first microprocessor CPU1 thereof, the first control output end 133 of first microprocessor CPU1 is connected with the control input end EN of second source output module 17, and the output V2 of second source output module 17 is connected with the power input 150 of full speed information process unit 20 and the second microprocessor CPU 2; The output 601 of main circuit current testing circuit 6 is connected with the first signal input 131 of first microprocessor CPU1, input (the S+ of main circuit current testing circuit 6, S-) connect with the output of signal picker (6a, 6b, 6c) or the output of current transformer 2.Power supply V1 of the present invention and power supply V2 are two relatively independent power supplys, and power supply V1 provides basic defencive function required electric energy for Execution driven unit 9, and power supply V1 must open after system power-up, and power supply V2 satisfies condition just to open.Authigenic power supply and accessory power supply all can be power supply V1, power supply V2 provides electric energy after being converted to suitable level.When only having authigenic power supply, authigenic power supply can be simultaneously provides input for power supply V1 and power supply V2; If when only having accessory power supply, accessory power supply can provide for power supply V1 and power supply V2 the electric energy of input; When authigenic power supply and accessory power supply exist simultaneously, can select one of them or two to provide electric energy for power supply V1 and power supply V2.Specifically, input (S+ when main circuit current testing circuit 6, when S-) signal of input is greater than the threshold value set, first microprocessor CPU1 is according to the signal of first signal input 131, by the first control output end (133) the control end EN input high level signal to second source output module 17, the output V2 of second source output module 17 is to the second microprocessor CPU 2 output services voltages.The output 145 of accessory power supply testing circuit 14 is connected with the secondary signal input 132 of first microprocessor CPU1, and the input (P+, P-) of auxiliary detection circuit 14 is connected with accessory power supply input interface 5; As input (P+, when P-) signal of input is greater than the threshold value set, accessory power supply testing circuit 14 is by the secondary signal input 132 output control signals of output 145 to first little processing CPU1, first microprocessor CPU1 is by the control input end EN input high level signal of the first control output end 133 to second source output module 17, and the output V2 of second source output module 17 is to the second microprocessor CPU 2 output services voltages.

The electronic controller 4 of the second embodiment of control device of the present invention comprises signal conditioning circuit shown in Figure 17, information process unit 8 and Execution driven unit 9, the input of signal conditioning circuit 7 and signal picker (6a, 6b, output 6c) connects, the output of signal conditioning circuit 7 is connected with the 3rd signal input part of information process unit 8, and the output of information process unit 8 is connected with the input of Execution driven unit 9.Information process unit 8 comprises a microprocessor CPU, and this microprocessor has low power mode of operation and two kinds of running statuses of full speed operation pattern.The power device 3 that matches with the electronic controller 4 of the second embodiment comprises accessory power supply input interface 5, Power Entry Module 30, accessory power supply testing circuit 14 and main circuit current testing circuit 6.The output V of Power Entry Module 30 is connected with the power input of information process unit 8; The output of accessory power supply testing circuit 14 is connected with the 4th signal input part (not shown) of information process unit 8, input (the P+ of accessory power supply testing circuit 14, P-) be connected with accessory power supply input interface 5, whether have accessory power supply normally to access for detection of accessory power supply interface 5.If have, accessory power supply testing circuit 14 indication information processing units 8 are transformed into the running status of full speed operation pattern.The output of main circuit current testing circuit 6 is connected with the 5th signal input part of information process unit 8, input (the S+ of main circuit current testing circuit 6, S-) with signal picker (6a, 6b, output 6c) connects, for detection of the size of current in major loop (A, B, C), if the electric current in major loop (A, B, C) is less than or equal to the threshold value of setting, main circuit current testing circuit 6 indication information processing units 8 are operated in the running status of low power mode of operation.If the electric current in major loop (A, B, C) is greater than the threshold value of setting, main circuit current testing circuit 6 indication information processing units 8 are transformed into the running status of full speed operation pattern.

The first embodiment and the second embodiment that compare the electronic controller 4 of apparatus of the present invention, there are following 3 main distinctions between them, at first, the information process unit 8 of the electronic controller 4 of the first embodiment has comprised two sub-processing units, be low-power consumption information process unit 19 and full speed information process unit 20, these two sub-information process units respectively adopt 1 microprocessor (first microprocessor CPU1 and the second microprocessor CPU 2), so information process unit 8 belongs to the information process unit of dual micro processor.And the information process unit 8 of the electronic controller 4 of the second embodiment has comprised 1 the information process unit (not shown) that adopts 1 microprocessor CPU, so information process unit 8 is information process units of single microprocessor.The second difference is: power device 3 comprises two power supply output modules: the first power supply output module 31 and second source output module 17, these two power supply output modules are respectively to two microprocessor power supplies in the first embodiment, namely the first power supply output module 31 is powered to first microprocessor CPU1, second source output module 17 is to the second microprocessor CPU 2 power supplies, and this power supply relation is as shown in Fig. 2-4; And in the second embodiment, power device 3 is directly to information process unit 8 power supplies by the output V of Power Entry Module 30.The 3rd difference is: although two embodiments are all to control respectively first microprocessor CPU1 by main circuit current testing circuit 6 and accessory power supply testing circuit 14, controlled again the Voltage-output of second source output module 17 by first microprocessor CPU1, but the first embodiment is the control by this Voltage-output, realize the switching of information process unit 20 between two kinds of running statuses of start and stop at full speed, this control relation is as shown in Fig. 2-4; And owing to there is no CPU2, the second embodiment is the Voltage-output by direct control the first power supply output module 31, second source output module 17, control single microprocessor CPU 1 and realize that low power mode of operation is to the switching between high power consumption mode of operation running status, and 17 of second source output modules provide electric energy for miscellaneous function.from the compartment analysis of above two kinds of embodiments as seen, there is following significant advantage in the first embodiment than the second embodiment: because the first embodiment adopts dual micro processor, not only guarantee to start basic defencive function with very little power consumption, and can realize the dual fail-safe of basic defencive function, namely when full speed information process unit 20 is in running status, low-power consumption information process unit 19 still is in readiness, no matter crashing appears in which microprocessor (CPU1 or CPU2) in central location 20 or low-power consumption central location 19 at full speed, the faults such as program fleet, always have a microprocessor (CPU1 or CPU2) and also keep normal running status, thereby can not cause the forfeiture of basic function, greatly improved the safe class of circuit breaker.Certainly, the second embodiment is simpler than the first embodiment circuit structure, low cost of manufacture.

Fig. 3 is the accessory power supply testing circuit 14 of power device 3 in the control device of the present invention of Fig. 2 and the circuit diagram of main circuit current testing circuit 6, and the information process unit 8 that connects in figure is the first embodiment of dual micro processor.As shown in Figure 3, the accessory power supply testing circuit 14 of the power device 3 of electric power loop control device of the present invention comprises the first resistance 141, optocoupler 142 and the second resistance 143.The positive pole of the input of optocoupler 142 is connected with an end of the first resistance 141, and the other end P+ of the first resistance 141 is connected with the positive pole of accessory power supply input interface 5, and the negative pole P-of the input of optocoupler 142 is connected with the negative pole of accessory power supply input interface 5; The minus earth of the output of optocoupler 142, one end of the positive pole 145 of the output of optocoupler 142 and the second resistance 143, the secondary signal input 132 of first microprocessor CPU1 are connected in parallel, and the other end of the second resistance 143 is connected with the anodal V1 of the first power supply output module 31.The positive pole 145 of accessory power supply testing circuit 14 outputs shown in Figure 3 is to be connected with the secondary signal input 132 of first microprocessor CPU1, and this is a kind of connection under the first embodiment.And under the second embodiment of single CPU, the positive pole 145 of the output of accessory power supply testing circuit 14 is connected with the 4th signal input part (not shown) of single microprocessor CPU (not shown), namely an end of the positive pole 145 of the output of optocoupler 142 and the second resistance 143, the 4th signal input part of information process unit 8 are connected in parallel, and the other end of the second resistance 143 is connected with the positive pole of the power output end of power device 3.In addition, the circuit structure of the accessory power supply testing circuit 14 that adopts of the first embodiment and the second embodiment is identical.as shown in Figure 3, the main circuit current testing circuit 6 of the power device 3 of apparatus of the present invention comprises three acquisition modules 60 and an ADC modular converter 63, each acquisition module 60 comprises the 3rd resistance 61 and an electric capacity 62, one end of the 3rd resistance 61 of each acquisition module 60, an input of one end of electric capacity 62 and ADC modular converter 63 is connected in parallel, the other end of the 3rd resistance 61 of each acquisition module 60 is as the input (S+ of main circuit current testing circuit 6, S-) a utmost point S+, with signal picker (6a, 6b, 6c), a secondary winding output connects, the other end ground connection of the electric capacity 62 of each acquisition module 60, and as the input (S+ of main circuit current testing circuit 6, S-) a utmost point S-, signal picker (6a, 6b, another output of each secondary winding 6c) is ground connection respectively, the output 601 of ADC modular converter 63 is connected with the first signal input (131) of first microprocessor CPU1.The output 601 of main circuit current testing circuit 6 shown in Figure 3 is to be connected with the first signal input 131 of first microprocessor CPU1, and this is a kind of connection under the first embodiment.And under the second embodiment, the output 601 of main circuit current testing circuit 6 is connected with the 5th signal input part (not shown) of single microprocessor CPU (not shown), namely the output 601 of ADC modular converter 63 is connected with the 5th signal input part (not shown) of information process unit 8 (see figure 1), in addition, the first embodiment is identical with the circuit structure of the main circuit current testing circuit 6 of the second embodiment.In addition in actual applications, the input of main circuit current testing circuit 6, namely the input (S+, S-) of each acquisition module 60 has following two schemes with the connection of front-end circuit.A kind of scheme is the scheme shown in Fig. 3 embodiment, input (S+, S-) and signal picker (6a, 6b, 6c) output connect, the advantage of this scheme is signal picker (6a, 6b, 6c) output is signal, and the adaptive input of the input (S+, S-) of acquisition module 60 is also signal, institute is so that signal picker (6a, 6b, 6c) very simple with Signal Matching between the input (S+, S-) of each acquisition module 60.Another kind of scheme is the input (S+ with each acquisition module 60, S-) be connected with the output (being the output of secondary winding) of current transformer 2, the electric current of exporting due to the output of current transformer 2 is larger, so need to increase the circuit (not shown) that matched signal is used, but the advantage of this scheme is to be output currents of the secondary winding of direct-detection current transformer 2 due to main circuit current testing circuit 6, so got rid of its undetected hidden danger, thereby can improve the security reliability grade of product.

As shown in Figures 2 and 3, the low-power consumption information process unit 19 of the electronic controller 4 of the first embodiment comprises a working state indicating circuit 18, working state indicating circuit 18 is connected with the second control output end 134 of first microprocessor CPU1, and shows the various operating states of low-power consumption information process unit 19.Information process unit 20 comprises second microprocessor CPU 2 and at least one miscellaneous function module 16 at full speed, and each miscellaneous function module is connected with the second microprocessor CPU 2 respectively, and works under the control of the second microprocessor CPU 2.Fig. 3 shows the embodiment of a circuit structure of working state indicating circuit 18, and the difference of the flicker frequency that this embodiment can be by light-emitting diode 181 shows that electronic controller 4 is to be in low-power consumption operating state or full speed operation state.

Fig. 4 is the circuit diagram of the Power Entry Module 30 of power device 3 in the control device of the present invention of Fig. 2, and the Power Entry Module in figure is applicable to information process unit 8 and is the first embodiment of dual micro processor.As shown in Figure 4, Power Entry Module 30 comprises accessory power supply input interface 5, accessory power supply rectification circuit 32 and authigenic power supply rectification circuit 33.Wherein the input of accessory power supply rectification circuit 32 is connected with accessory power supply input interface 5, input (the Q+ of authigenic power supply rectification circuit (33), Q-) output with current transformer 2 is connected, the equal ground connection of the negative pole of the output of the output of accessory power supply rectification circuit 32 and authigenic power supply rectification circuit 33, the positive pole of the output of the positive pole of the output of accessory power supply rectification circuit 32 and authigenic power supply rectification circuit 33 are connected in parallel and form the cathode output end V of Power Entry Module 30.The output of the cathode output end V of the Power Entry Module 30 shown in Fig. 4 is that the first embodiment by two CPU connects, and namely the input of V and the first power supply output module 31 and second source output module 17 is connected in parallel.For example authigenic power supply is through being converted to 20V voltage, external accessory power supply also through being converted to 20V voltage, and two groups of 20V voltage signals all pass through after diode provides input for the first power supply output module 31 and second source output module 17.In the situation that the second embodiment of single CPU, the cathode output end V of Power Entry Module 30 is connected with the input of single information process unit 8.In actual use; power device 3 of the present invention is actual have three outputs (referring to the V in Fig. 4, V1, V2) can for the information process unit 8 of different mode, realize basic defencive function various circuit units (as signal conditioning circuit 7, Execution driven unit 9 etc.), realize that the circuit unit of miscellaneous function selects to connect, connect by selection and satisfy different purposes.In the situation that two CPU, Power Entry Module 30 is interior can comprise the power supply modulate circuit, equal the input voltage of electronic controller 4 in single CPU situation for the voltage V that makes its output, certainly, if 3 output end voltage V, V1 of power device 3, V2 are all identical, need not at the interior increase power supply of Power Entry Module 30 modulate circuit.In addition, when the input terminal voltage V1 of low-power consumption information process unit 19 is not equal to power device 3 output end voltage V, should namely in the first power supply output module 31, the voltage control modulate circuit be set at power supply 1, in like manner, when the input terminal voltage V2 of full speed information process unit 20 is not equal to power device 3 output end voltage V, should be that the voltage control modulate circuit is set in second source output module 17 at power supply 2.Because the Power Entry Module 30 of embodiment shown in Figure 4 has comprised accessory power supply rectification circuit 32, so the accessory power supply input interface 5 of this embodiment can incoming transport power supply or DC power supply.When the DC power supply such as 5 permission access batteries of accessory power supply input interface or storage battery, can save the accessory power supply rectification circuit 32 of Fig. 4.

Referring to Fig. 4, under the first embodiment of two CPU, the circuit structure of the first power supply output module 31 of power device 3 can be selected in following dual mode: first kind of way is that the first power supply output module 31 is for making the first power supply output module 31 constant voltage output circuit of output services voltage all the time.So-called constant voltage output circuit refers to as long as the input (being the cathode output end V of Power Entry Module 30) of the first power supply output module 31 has the voltage input, so the synchronous output voltage of the output V1 of the first power supply output module 31.This shows, under the prerequisite that need not to nurse one's health, overvoltage protection etc. requires, the simplest constant voltage output circuit is a wire, namely is connected by wire between the input V of the first power supply output module 31 and output V1.The second way of the circuit structure of the first power supply output module 31 of power device 3 is that the first power supply output module 31 is voltage conversion circuit, at second source output module 17 not during output services voltage, the first power supply output module 31 keeps output services voltage, when second source output module 17 output services voltage, the first power supply output module 31 is converted to not output services voltage.So-called voltage conversion circuit, refer to: in the situation that the input V of the first power supply output module 31 has the voltage input, the Voltage-output of its output V1 is controlled and conversion, and namely the output voltage of output V1 can be subjected to being controlled at of first microprocessor CPU1 or without Transforms.Voltage conversion circuit can adopt discrete component to realize, also can adopt the existing TPS793XX product as TI company in market, it comprises voltage input end IN, voltage output end OUT, control input end EN.Voltage conversion circuit is in the situation that voltage input end IN has the voltage input: if control input end EN input high level is exported for the output voltage that is fit to the voltage transitions of voltage input end IN input from voltage output end OUT; If control input end EN input low level, voltage output end OUT Non voltage output.In common situation, preferred the first power supply output module 31 is the first kind of way of constant voltage output circuit; simple in structure, low cost of manufacture not only; but also the dual fail-safe that is applicable to foregoing basic defencive function moves; namely when full speed information process unit 20 was in running status, low-power consumption information process unit 19 still was in the preparation running status and does not shut down.If realize the shutdown of selectable low-power consumption information process unit 19 under full speed information process unit 20 running statuses, the first power supply output module 31 needs to adopt voltage conversion circuit.Under the first execution mode, the second source output module 17 of power device 3 of the present invention must adopt the circuit of realizing voltage transformation, can adopt discrete component to realize, the TPS793XX product that also can adopt foregoing TI for example company to produce, the second source output module 17 of power device 3 has following control relationship characteristic: when control input end EN is high level, with the voltage transitions of voltage input end IN for the voltage that is fit to and export from voltage output end OUT; When control end EN is low level, voltage output end OUT Non voltage output; Wherein voltage input end IN is connected with the cathode output end V of Power Entry Module 30, and voltage output end OUT is exactly the output V2 of second source output module 17.

Referring to Fig. 2,3, in the situation that adopt the first embodiment of of the present invention couple of CPU, be provided with the passage that startup control (Reset) and exchanges data are used between first microprocessor CPU1 and the second microprocessor CPU 2, the exchanges data of this passage is two-way, it comprises at least one communications cable, is connected on standard interface on first microprocessor CPU1 and the second microprocessor CPU 2 according to purposes.

Fig. 5 is the control method block diagram of the control device to the circuit breaker control unit intelligent power supply of the present invention, is that flow process is carried out in the control of the first embodiment of dual micro processor corresponding to information process unit 8.At first make low-power consumption information process unit 19 be introduced into operating state than full speed information process unit 20, and whether enter operating state by the first microprocessor CPU1 control full speed information process unit 20 of low-power consumption information process unit 19.After full speed information process unit 20 entered operating state, low-power consumption information process unit 19 still kept operating state, and perhaps after information process unit 20 entered operating state at full speed, low-power consumption information process unit 19 entered the state of quitting work.This control method comprises following control step:

(2) system power-up---current transformer 2 is responded to generation current from major loop (A, B, C), and this electric current is input to power device 3; Or the accessory power supply input current is to power device 3;

(6) judge whether accessory power supply normal---accessory power supply testing circuit 14 judgement accessory power supply input interfaces 5 have or not the normal voltage input, control step (8) if having be transferred to, if without would forward to and control step (7);

(7) judging that whether main circuit current is greater than set point---main circuit current testing circuit 6 judges that electric current in major loop (A, B, C) is whether greater than the threshold value of setting, control step (6) if be less than or equal to go back to one, if greater than would forward next to and control step (8);

(10) start all the other miscellaneous functions---the second microprocessor CPU 2 and at full speed under information process unit 20 each functional module all start and enter operating state, signal conditioning circuit 7, Execution driven unit 9, first microprocessor CPU1 still keep operating state or low-power consumption information process unit (19) state that quits work.

Low-power consumption information process unit (19) is introduced into operating state than full speed information process unit (20), and whether information process unit (20) enters operating state by the first microprocessor CPU1 control of low-power consumption information process unit (19) at full speed.After full speed information process unit (20) enters operating state, low-power consumption information process unit (19) still keeps operating state, perhaps low-power consumption information process unit (19) state that quits work after full speed information process unit (20) enters operating state.

Fig. 6 is the control method block diagram of the control device to the circuit breaker control unit intelligent power supply of the present invention, is that flow process is carried out in the control of the second embodiment of single microprocessor corresponding to information process unit 8.Comprise following control step:

(3) power supply is ready---and power device 3 is to information process unit 8 output services voltages;

(5) the CPU low power mode of operation---microprocessor CPU enters low power mode of operation, and signal conditioning circuit 7, Execution driven unit 9, accessory power supply testing circuit 14, main circuit current testing circuit 6 enter operating state;

(9) starting all the other miscellaneous functions---each functional modules under information process unit 8 all start and enter operating state.

Below in conjunction with the operation principle of Fig. 6 brief description at information process unit 8 not or when having accessory power supply, this moment, information process unit 8 was made of single microprocessor CPU1.

In the situation that accessory power supply is arranged, after system powers on, the initialization state of CPU1 is low power mode of operation, the secondary signal input end signal 132 that CPU1 detects CPU1 is during for low level, think that accessory power supply is normal at this moment, CPU1 allows the startup of second source output module 17 by controlling the level of the first control output end signal 133, CPU1 switches to the high speed operation pattern subsequently, and opens miscellaneous function.Because information process unit 8 is uniprocessor, 17 of the second source output modules of power device 3 are required to be miscellaneous function provides electric energy.

In the situation that there is no accessory power supply, after system powers on, the initialization state of CPU1 is low power mode of operation, when CPU1 detects current signal in power circuit greater than setting threshold, CPU1 is by controlling the level of the first control output end signal 133, allow the startup of second source output module 17, CPU1 switches to the high speed operation pattern subsequently, and opens miscellaneous function.

Claims

1. control device to the circuit breaker control unit intelligent power supply comprises:

Current transformer (2) and described current transformer (2) accessory power supply in addition are used for providing electric energy through power device (3) to electronic controller (4) respectively;

Signal picker (6a, 6b, 6c) is arranged on the major loop (A, B, C) of distribution line (1), and the phase current signal that is used for the major loop (A, B, C) that will detect is transported to electronic controller (4);

Electronic controller (4), by signal conditioning circuit (7), the current signal of signal picker (6) input is processed, and sending control command according to the fault current signal through Execution driven unit (9) by information process unit (8), the actuator (10) that drives breaker body (11) is carried out the tripping operation action; And

power device (3) comprises main circuit current testing circuit (6), accessory power supply testing circuit (14) and two are power supply 1 and power supply 2 independently, input (the S+ of main circuit current testing circuit (6), S-) with signal picker (6a, 6b, the output of output 6c) or current transformer (2) connects, input (the P+ of accessory power supply testing circuit (14), P-) be connected with accessory power supply input interface (5), the output (601) of main circuit current testing circuit (6), the output (145) of accessory power supply testing circuit (14) respectively with the signal input part (131 of the information process unit (8) of electronic controller (4), 132) connect, the power on signal of described power device (3) response main circuit current testing circuit (6), provide basic defencive function required electric energy by power supply 1 to electronic controller (4), and when the input signal of the input signal of main circuit current testing circuit (6) or accessory power supply testing circuit (14) surpasses the threshold value of setting, described power device (3) provides assistant protection function required electric energy by power supply 2 from trend electronic controller (4), make described electronic controller (4) automatically realize conversion between low-power consumption and two kinds of mode of operations of high power consumption.

2. the control device to the circuit breaker control unit intelligent power supply according to claim 1 is characterized in that:

The information process unit (8) of described electronic controller (4) comprises the low-power consumption information process unit (19) that contains first microprocessor CPU1 and the full speed information process unit (20) that contains the second microprocessor CPU 2,

Described power device (3) power supply 1 comprises that the first power supply output module (31), power supply 2 comprise second source output module (17), and power device (3) also comprises the Power Entry Module (30) that contains accessory power supply input interface (5); Wherein the output V1 of the first power supply output module (31) is connected with the power input (130) of low-power consumption information process unit (19) and first microprocessor CPU1 thereof, the first control output end (133) of first microprocessor CPU1 is connected with the control input end EN of second source output module (17), and the output V2 of second source output module (17) is connected with the power input (150) of full speed information process unit (20) and the second microprocessor CPU 2 thereof;

The signal input part of described low-power consumption information process unit (19) is connected with the output of signal conditioning circuit (7), and the output of the output of low-power consumption information process unit (19) and the information process unit of being connected (20) is connected with the input of Execution driven unit (9) respectively.

3. the control device to the circuit breaker control unit intelligent power supply according to claim 2 is characterized in that:

Described accessory power supply testing circuit (14) comprises the first resistance (141), optocoupler (142), the second resistance (143);

The positive pole of the input of optocoupler (142) is connected with an end of the first resistance (141), the other end P+ of the first resistance (141) is the input (P+ of accessory power supply testing circuit (14), P-) positive pole, it is connected with the positive pole of accessory power supply input interface (5); The negative pole P-of the input of optocoupler (142) is the negative pole of the input (P+, P-) of accessory power supply testing circuit (14), and it is connected with the negative pole of accessory power supply input interface (5);

The minus earth of the output of optocoupler (142), the secondary signal input (132) of one end of the positive pole of the output of optocoupler (142) and the second resistance (143), first microprocessor CPU1 is connected in parallel, and the other end of the second resistance (143) is connected with the anodal V1 of the first power supply output module (31);

Input (P+ when accessory power supply testing circuit (14), when P-) signal of input is greater than the threshold value set, accessory power supply testing circuit (14) is by secondary signal input (132) the output control signal of output (145) to first microprocessor CPU1, first microprocessor CPU1 is by the control input end EN input high level signal of the first control output end (133) to second source output module (17), and the output V2 of second source output module (17) is to the second microprocessor CPU 2 output services voltages.

4. the control device to the circuit breaker control unit intelligent power supply according to claim 2 is characterized in that:

Described main circuit current testing circuit (6) comprises at least one acquisition module (60) and an ADC modular converter (63);

Input (S+ when main circuit current testing circuit (6), when S-) signal of input is greater than the threshold value set, main circuit current testing circuit (6) is by first signal input (131) the output control signal of output (601) to first microprocessor CPU1, first microprocessor CPU1 is by the control input end EN input high level signal of the first control output end (133) to second source output module (17), and the output V2 of second source output module (17) is to the second microprocessor CPU 2 output services voltages.

5. the control device to the circuit breaker control unit intelligent power supply according to claim 2 is characterized in that:

described Power Entry Module (30) comprises accessory power supply input interface (5), accessory power supply rectification circuit (32) and authigenic power supply rectification circuit (33), wherein the input of accessory power supply rectification circuit (32) is connected with accessory power supply input interface (5), the minus earth of the output of accessory power supply rectification circuit (32), input (the Q+ of authigenic power supply rectification circuit (33), Q-) output with current transformer (2) is connected, the minus earth of the output of authigenic power supply rectification circuit (33), the positive pole of the output of the positive pole of the output of accessory power supply rectification circuit (32) and authigenic power supply rectification circuit (33) is connected in parallel and forms the cathode output end V of Power Entry Module (30).

6. the control device to the circuit breaker control unit intelligent power supply according to claim 2 is characterized in that:

Described low-power consumption information process unit (19) comprises first microprocessor CPU1 and working state indicating circuit (18), working state indicating circuit (18) is connected with the second control output end (134) of first microprocessor CPU1, is used for type or the operating state of the fault of demonstration low-power consumption information process unit (19);

Described full speed information process unit (20) comprises second microprocessor CPU 2 and at least one miscellaneous function module (16), and each miscellaneous function module is connected with the second microprocessor CPU 2 respectively, and works under the control of the second microprocessor CPU 2.

7. the control device to the circuit breaker control unit intelligent power supply according to claim 2 is characterized in that:

Described the first power supply output module (31) is constant voltage output circuit, so that the first power supply output module (31) output services voltage all the time;

Perhaps, the first power supply output module (31) is for realizing the circuit of voltage transformation, at second source output module (17) not during output services voltage, the first power supply output module (31) keeps output services voltage, when second source output module (17) output services voltage, the first power supply output module (31) is converted to not output services voltage.

8. the control device to the circuit breaker control unit intelligent power supply according to claim 2 is characterized in that:

Described second source output module (17) is for realizing the circuit of voltage transformation;

When the control input end EN of second source output module (17) is high level, second source output module (17) with the voltage transitions of voltage input end IN for the voltage that is fit to and from the output V2 output of second source output module (17);

When its control input end EN is low level, the output V2 Non voltage output of second source output module (17).

9. the control device to the circuit breaker control unit intelligent power supply according to claim 2, is characterized in that: comprise the power supply modulate circuit that the voltage V that makes its output equals the input voltage of electronic controller (4) in single CPU situation in Power Entry Module (30); Perhaps in the first power supply output module (31) and/or second source output module (17), the voltage control modulate circuit is set.

10. the control device to the circuit breaker control unit intelligent power supply according to claim 2 is characterized in that: a data channel setting is used for starting and controls and exchanges data use between described first microprocessor CPU1 and the second microprocessor CPU 2.

11. the control device to the circuit breaker control unit intelligent power supply according to claim 1 is characterized in that:

The information process unit (8) of described electronic controller (4) comprises a microprocessor CPU, and this microprocessor CPU has low power mode of operation and two kinds of running statuses of full speed operation pattern;

Described power device (3) also comprises the Power Entry Module (30) that contains accessory power supply input interface (5), and the output V of Power Entry Module (30) is connected with the power input of information process unit (8) and CPU thereof;

The output of accessory power supply testing circuit (14) is connected with the 4th signal input part of information process unit (8), whether there is accessory power supply normally to access for detection of accessory power supply interface (5), if have, accessory power supply testing circuit (14) indication information processing unit (8) and CPU thereof are transformed into the running status of full speed operation pattern;

The output of main circuit current testing circuit (6) is connected with the 5th signal input part of information process unit (8), for detection of the size of current in major loop (A, B, C), if the electric current in major loop (A, B, C) is greater than the threshold value of setting, main circuit current testing circuit (6) indication information processing unit (8) is transformed into the running status of full speed operation pattern;

The 3rd signal input part of information process unit (8) is connected with the output of signal conditioning circuit (7), and the output of information process unit (8) is connected with the input of Execution driven unit (9).

12. the control device to the circuit breaker control unit intelligent power supply according to claim 11 is characterized in that:

The positive pole of the input of optocoupler (142) is connected with an end of the first resistance (141), the other end P+ of the first resistance (141) is the input (P+ of accessory power supply testing circuit (14), P-) positive pole, it is connected with the positive pole of accessory power supply input interface (5), the negative pole P-of the input of optocoupler (142) is the input (P+ of accessory power supply testing circuit (14), P-) negative pole, it is connected with the negative pole of accessory power supply input interface (5);

The minus earth of the output of optocoupler (142), the 4th signal input part of one end of the positive pole of the output of optocoupler (142) and the second resistance (143), information process unit (8) is connected in parallel, and the other end of the second resistance (143) is connected with the positive pole of the power output end of power device (3).

13. the control device to the circuit breaker control unit intelligent power supply according to claim 11 is characterized in that: described main circuit current testing circuit (6) comprises at least one acquisition module (60) and is connected the output (601) of a described ADC modular converter of ADC modular converter (63) (63) and is connected with the 5th signal input part of information process unit (8).

14. the control method to the control device of circuit breaker control unit intelligent power supply that is applicable to claim 2 to 10, it comprises following control step:

(1) beginning---breaker body (11) closes a floodgate or accessory power supply is connected;

(2) system power-up---current transformer (2) is responded to generation current from major loop (A, B, C), and this electric current is input to power device (3); Or the accessory power supply input current is to power device 3;

(3) power supply 1 is ready---and the first power supply output module (31) is to low-power consumption information process unit (19) output services voltage;

(4) CPU1 starts---and the first microprocessor CPU1 of low-power consumption information process unit (19) starts working;

(5) CPU1 full speed operation---first microprocessor CPU1 and signal conditioning circuit (7), Execution driven unit (9), accessory power supply testing circuit (14), main circuit current testing circuit (6) enter operating state;

(6) is accessory power supply normal?---accessory power supply testing circuit (14) judgement accessory power supply input interface (5) has or not the normal voltage input, if having be transferred to step (8), if nothing forwards next step (7) to;

(7) main circuit current＞set point?---main circuit current testing circuit (6) judges that electric current in major loop (A, B, C) is whether greater than the threshold value of setting, if be less than or equal to go back to previous step (6), if greater than would forward next step (8) to;

(8) starting power supply 2---first microprocessor CPU1 controls second source output module (17) to full speed information process unit (20) output services voltage;

(9) starting CPU2---the second microprocessor CPU 2 of information process unit (20) enters operating state at full speed;

(10) start all the other miscellaneous functions---the second microprocessor CPU 2 and at full speed under information process unit (20) each miscellaneous function module all start and enter operating state, signal conditioning circuit (7), Execution driven unit (9) and first microprocessor CPU1 still keep operating state or low-power consumption information process unit (19) state that quits work.

15. the control method to the control device of circuit breaker control unit intelligent power supply that is applicable to claim 11 to 13 comprises following control step:

(2) system power-up---current transformer (2) is responded to generation current from major loop (A, B, C), and this electric current is input to power device (3); Or the accessory power supply input current is to power device (3);

(3) power supply is ready---and power device (3) is to information process unit (8) output services voltage V;

(4) CPU starts---and the microprocessor CPU of information process unit (8) is started working;

(5) the CPU low power mode of operation---microprocessor CPU enters low power mode of operation, and signal conditioning circuit (7), Execution driven unit (9), accessory power supply testing circuit (14), main circuit current testing circuit (6) enter operating state;

(6) is accessory power supply normal?---accessory power supply testing circuit (14) judgement accessory power supply input interface (5) has or not the normal voltage input, if having be transferred to step (8), if without would forward next step (7) to;

(9) starting all the other miscellaneous functions---each miscellaneous function module under information process unit (8) all starts and enters operating state.