CN105449848A - Fault self-diagnosis and self-recovery power supply system - Google Patents
Fault self-diagnosis and self-recovery power supply system Download PDFInfo
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- CN105449848A CN105449848A CN201410511516.2A CN201410511516A CN105449848A CN 105449848 A CN105449848 A CN 105449848A CN 201410511516 A CN201410511516 A CN 201410511516A CN 105449848 A CN105449848 A CN 105449848A
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Abstract
The present invention provides a fault self-diagnosis and self-recovery power supply system. The fault self-diagnosis and self-recovery power supply system comprises a power control module, an instantaneous voltage collection module, an instantaneous current collection module and a temperature control module. The power control module is connected with the instantaneous voltage collection module, the instantaneous current collection module and the temperature control module. The power control module includes a microprocessor, an insulation supply power, a power tube driving circuit, a voltage sensor and an amplifying circuit thereof, and a current sensor and an amplifying circuit thereof. The microprocessor is connected with the insulation supply power, the power tube driving circuit, the voltage sensor and the amplifying circuit thereof and the current sensor and the amplifying circuit thereof. The fault self-diagnosis and self-recovery power supply system is able to replace disposable insurance consumables, so that the labor maintenance cost may be decreased, the real-time power and the energy consumption index of a power supply terminal may be read at any time, and the data basis and the technical assurance is provided for enterprises to perform energy conservation and emission reduction. Besides, the fault self-diagnosis and self-recovery power supply system is capable of repeated use, therefore the usage cost is reduced.
Description
Technical field
The present invention relates to industrial power distribution control field, particularly relate to the electric power system of a kind of fault self-diagnosis and self-healing recovery.
Background technology
More in current industrial power distribution is mechanical type electromagnetic relay, major vendor has Panasonic, safe section, Omron etc., this kind of relay has maximum service life (MSL), and electromagnetic interference can be produced to outside, high-end has solid-state relay, useful life does not limit substantially, also can not produce electromagnetic interference, but only possesses the basic function of switch.But voltage, electric current often can occur feeder ear, and excessive thing occurs, and causes electrical appliance to damage.In order to avoid this situation occurs, many users in circuit installation insurance silk guarantee the safety of electrical appliance, but fuse is single use instrument, when there is voltage, electric current and being excessive, fuse can rupture, and circuit is disconnected, but fuse is single use instrument, if circuit often a situation arises can cause consume excessive, use cost is too high.
Summary of the invention
According to above technical problem, the invention provides the electric power system of a kind of fault self-diagnosis and self-healing recovery, it is characterized in that comprising power control module, instantaneous voltage acquisition module, transient current acquisition module, temperature control modules, described power control module respectively with instantaneous voltage acquisition module, transient current acquisition module, temperature control modules connects, described power control module comprises microprocessor, insulating power supply, power tube drive circuit, voltage sensor and amplifying circuit, current sensor and amplifying circuit, described microprocessor respectively and insulating power supply, power tube drive circuit, voltage sensor and amplifying circuit, current sensor and amplifying circuit connect, described power tube drive circuit respectively and insulating power supply, voltage sensor and amplifying circuit, current sensor and amplifying circuit connect, described power tube drive circuit respectively with the instantaneous voltage acquisition module in the external world, transient current acquisition module, temperature control modules connects,
Power control module: by gathering the physical quantitys such as electric current, voltage, temperature in conjunction with I
2t curved line arithmetic, controls the break-make of power MOSFET, reaches the effect of power protection, and then realizes the function of fault self-diagnosis and self-healing recovery;
Instantaneous voltage acquisition module: gather instantaneous voltage by voltage transformer, through harmonic, obtains effective voltage value, for overvoltage protection provides basis for estimation;
Transient current acquisition module: by circuit mutual inductance chip, the prosperity of instrument amplifier and current effective value acquisition chip, obtain transient current effective value, for overcurrent protection provides basis for estimation;
Temperature protection module: by temperature sensor, whether the temperature of judge module exceedes the warning value of setting, plays the effect of module protection, and this is a miscellaneous function;
Insulating power supply: for strengthening the antijamming capability of system;
Microcontroller (MCU): for judging the threshold values of voltage, electric current, temperature, the algorithm according to presetting performs corresponding action;
Power tube drive circuit: be the performance element of system; Protection module is the input unit of system, and for the collection of various data, the judgement for microcontroller provides the data of contrast;
I2t curve: this is the core algorithm of power control module, the main damage reason of module or electrical equipment is exactly that overcurrent or overvoltage cause heating and cause damage, I
2t curve reflects process and the state of circuit heat accumulation, in general I
2t is a constant value, exceedes this value supply line or IC may occur fire damage, from formula W=I
2rt can draw, when R is constant, according to the numerical value of the I detected, and the size of adjustment t, and then reach the object of control W, thus realize the protection of terminal appliance equipment; Be exactly that line current is larger, guard time is shorter, and then realizes the protection to terminal equipment, and this threshold values artificially can be arranged by PORT COM.
Beneficial effect of the present invention is: the present invention can judge situations such as power supply terminal overcurrent, overvoltages, and can execution parameter be set, parameter when abnormal electrical power supply according to customization judges, automatic recovery of power supply after fixing a breakdown, possess the function of intelligent power supply, and then reach the object of dynamic energy-saving.The present invention by User Defined power supply parameter, or can be adjusted by default dynamic state of parameters, cuts off the electricity supply rapidly when the overvoltage that can cause in the fault because of terminal equipment or short circuit, avoids the generation of more eventful event, automatic recovery of power supply after Failure elimination.The present invention can substitute disposable insurance consumptive material, and reduce manual maintenance cost, read realtime power and the energy consumption index of power supply terminal at any time, the energy-saving and emission-reduction for enterprise provide data foundation and technique guarantee.The present invention can Reusability, reduces use cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is temperature protection module circuit diagram of the present invention;
Fig. 3 is transient current acquisition module circuit diagram of the present invention;
Fig. 4 is instantaneous voltage acquisition module circuit diagram of the present invention;
Fig. 5 is power control module circuit diagram of the present invention;
Fig. 6 is power control module structural representation of the present invention;
Fig. 7 is I in the present invention
2t curve chart.
Embodiment
According to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, shown in, the present invention is further described:
Embodiment 1
The present invention is the electric power system of a kind of fault self-diagnosis and self-healing recovery, comprise power control module, instantaneous voltage acquisition module, transient current acquisition module, temperature control modules, described power control module respectively with instantaneous voltage acquisition module, transient current acquisition module, temperature control modules connects, described power control module comprises microprocessor, insulating power supply, power tube drive circuit, voltage sensor and amplifying circuit, current sensor and amplifying circuit, described microprocessor respectively and insulating power supply, power tube drive circuit, voltage sensor and amplifying circuit, current sensor and amplifying circuit connect, described power tube drive circuit respectively and insulating power supply, voltage sensor and amplifying circuit, current sensor and amplifying circuit connect, described power tube drive circuit respectively with the instantaneous voltage acquisition module in the external world, transient current acquisition module, temperature control modules connects,
Power control module: by gathering the physical quantitys such as electric current, voltage, temperature in conjunction with I
2t curved line arithmetic, controls the break-make of power MOSFET, reaches the effect of power protection, and then realizes the function of fault self-diagnosis and self-healing recovery;
Instantaneous voltage acquisition module: gather instantaneous voltage by voltage transformer, through harmonic, obtains effective voltage value, for overvoltage protection provides basis for estimation;
Transient current acquisition module: by circuit mutual inductance chip, the prosperity of instrument amplifier and current effective value acquisition chip, obtain transient current effective value, for overcurrent protection provides basis for estimation;
Temperature protection module: by temperature sensor, whether the temperature of judge module exceedes the warning value of setting, plays the effect of module protection, and this is a miscellaneous function;
Insulating power supply: for strengthening the antijamming capability of system;
Microcontroller (MCU): for judging the threshold values of voltage, electric current, temperature, the algorithm according to presetting performs corresponding action;
Power tube drive circuit: be the performance element of system; Protection module is the input unit of system, and for the collection of various data, the judgement for microcontroller provides the data of contrast;
I2t curve: this is the core algorithm of power control module, the main damage reason of module or electrical equipment is exactly that overcurrent or overvoltage cause heating and cause damage, I
2t curve reflects process and the state of circuit heat accumulation, in general I
2t is a constant value, exceedes this value supply line or IC may occur fire damage, from formula W=I
2rt can draw, when R is constant, according to the numerical value of the I detected, and the size of adjustment t, and then reach the object of control W, thus realize the protection of terminal appliance equipment; Be exactly that line current is larger, guard time is shorter, and then realizes the protection to terminal equipment, and this threshold values artificially can be arranged by PORT COM.
Embodiment 2
During normal power supply, electric current and voltage is obtained by transient current acquisition module and instantaneous voltage acquisition module, after the AD unit inspection of MCU, to judge that supply current is interval at minimum and maximum protective current when detecting, system can not issue power tube drive circuit action command; When power supply unit fault, by the real-time detection of instantaneous voltage acquisition module, transient current acquisition module or the output of temperature protection module, MCU judges electric current, voltage or temperature anomaly, by I in program
2the algorithm computing of t draws the time of power tube drive circuit action, thus disengagement failure circuit, play the effect of Fault Isolation and protection; When after fault recovery or isolation, the real-time detection of instantaneous voltage acquisition module, transient current acquisition module and temperature protection module three entirely within the scope of the reasonable value preset, then, after MCU judges, open power tube drive circuit, System recover normal operating conditions.
Claims (1)
1. the electric power system of a fault self-diagnosis and self-healing recovery, it is characterized in that comprising power control module, instantaneous voltage acquisition module, transient current acquisition module, temperature control modules, described power control module respectively with instantaneous voltage acquisition module, transient current acquisition module, temperature control modules connects, described power control module comprises microprocessor, insulating power supply, power tube drive circuit, voltage sensor and amplifying circuit, current sensor and amplifying circuit, described microprocessor respectively and insulating power supply, power tube drive circuit, voltage sensor and amplifying circuit, current sensor and amplifying circuit connect, described power tube drive circuit respectively and insulating power supply, voltage sensor and amplifying circuit, current sensor and amplifying circuit connect, described power tube drive circuit respectively with the instantaneous voltage acquisition module in the external world, transient current acquisition module, temperature control modules connects,
Power control module: by gathering the physical quantitys such as electric current, voltage, temperature in conjunction with I
2t curved line arithmetic, controls the break-make of power MOSFET, reaches the effect of power protection, and then realizes the function of fault self-diagnosis and self-healing recovery;
Instantaneous voltage acquisition module: gather instantaneous voltage by voltage transformer, through harmonic, obtains effective voltage value, for overvoltage protection provides basis for estimation;
Transient current acquisition module: by circuit mutual inductance chip, the prosperity of instrument amplifier and current effective value acquisition chip, obtain transient current effective value, for overcurrent protection provides basis for estimation;
Temperature protection module: by temperature sensor, whether the temperature of judge module exceedes the warning value of setting, plays the effect of module protection, and this is a miscellaneous function;
Insulating power supply: for strengthening the antijamming capability of system;
Microcontroller (MCU): for judging the threshold values of voltage, electric current, temperature, the algorithm according to presetting performs corresponding action;
Power tube drive circuit: be the performance element of system; Protection module is the input unit of system, and for the collection of various data, the judgement for microcontroller provides the data of contrast;
I2t curve: this is the core algorithm of power control module, the main damage reason of module or electrical equipment is exactly that overcurrent or overvoltage cause heating and cause damage, I
2t curve reflects process and the state of circuit heat accumulation, in general I
2t is a constant value, exceedes this value supply line or IC may occur fire damage, from formula W=I
2rt can draw, when R is constant, according to the numerical value of the I detected, and the size of adjustment t, and then reach the object of control W, thus realize the protection of terminal appliance equipment; Be exactly that line current is larger, guard time is shorter, and then realizes the protection to terminal equipment, and this threshold values artificially can be arranged by PORT COM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511516.2A CN105449848A (en) | 2014-09-29 | 2014-09-29 | Fault self-diagnosis and self-recovery power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410511516.2A CN105449848A (en) | 2014-09-29 | 2014-09-29 | Fault self-diagnosis and self-recovery power supply system |
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| CN105449848A true CN105449848A (en) | 2016-03-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410511516.2A Pending CN105449848A (en) | 2014-09-29 | 2014-09-29 | Fault self-diagnosis and self-recovery power supply system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246645A1 (en) * | 2003-06-04 | 2004-12-09 | Bel Fuse Incorporated | Telecom circuit protection apparatus |
| CN1976156B (en) * | 2005-11-10 | 2011-09-07 | 力特保险丝有限公司 | Self-repairing circuit protection apparatus |
| CN203312779U (en) * | 2013-03-11 | 2013-11-27 | 南京因泰莱电器股份有限公司 | Multilevel-area-latching release |
| CN103414150A (en) * | 2013-08-23 | 2013-11-27 | 上海新时达电气股份有限公司 | Inverse time limit protection method |
| CN103683276A (en) * | 2013-09-04 | 2014-03-26 | 华北水利水电大学 | An intelligent static state switch, a control system thereof, and a fault monitoring method |
-
2014
- 2014-09-29 CN CN201410511516.2A patent/CN105449848A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040246645A1 (en) * | 2003-06-04 | 2004-12-09 | Bel Fuse Incorporated | Telecom circuit protection apparatus |
| CN1976156B (en) * | 2005-11-10 | 2011-09-07 | 力特保险丝有限公司 | Self-repairing circuit protection apparatus |
| CN203312779U (en) * | 2013-03-11 | 2013-11-27 | 南京因泰莱电器股份有限公司 | Multilevel-area-latching release |
| CN103414150A (en) * | 2013-08-23 | 2013-11-27 | 上海新时达电气股份有限公司 | Inverse time limit protection method |
| CN103683276A (en) * | 2013-09-04 | 2014-03-26 | 华北水利水电大学 | An intelligent static state switch, a control system thereof, and a fault monitoring method |
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Application publication date: 20160330 |