CN105572495B - High direct voltage high-current circuit open-circuit fault dynamic analog electronic device - Google Patents
High direct voltage high-current circuit open-circuit fault dynamic analog electronic device Download PDFInfo
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- CN105572495B CN105572495B CN201510757419.6A CN201510757419A CN105572495B CN 105572495 B CN105572495 B CN 105572495B CN 201510757419 A CN201510757419 A CN 201510757419A CN 105572495 B CN105572495 B CN 105572495B
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Abstract
The present invention provides a kind of high direct voltage high-current circuit open-circuit fault dynamic analog electronic devices, including high voltage direct current relay etc.；Wherein, high voltage direct current relay and pincers pressure bypass member are connected in DC circuit after being connected in parallel by its first connecting pin and second connection end, open-circuit fault and normal connected state of the high voltage direct current relay for analog DC high-voltage great-current circuit, pincers pressure bypass member be used for simulate open-circuit fault and by high voltage direct current relay disconnect during for high voltage direct current relay provide one in short-term shunt and automatically by the voltage drop clamper of the input and output side of high voltage direct current relay be avoided that high voltage direct current relay contact damage in the range of to avoid the damage to high voltage direct current relay.The present invention can be with the open-circuit fault of dynamic analog high direct voltage high-current circuit, and can lossless repeatedly flexible simulation.
Description
Technical field
The present invention relates to a kind of electronic devices, and in particular, to a kind of high direct voltage high-current circuit open-circuit fault dynamic
Simulation electronic device.
Background technique
High direct voltage high-current circuit is widely used, such as the driving motor power supply circuit and various electric power direct currents of electric car
Transmission circuit etc..High direct voltage high-current circuit not only will affect the safety in operation of electrical equipment if there is open-circuit fault,
And since the presence of inductive loads various in circuit and circuit distributed inductance etc. will also cause the damage of electrical equipment.Therefore,
Electricity system performance when researching DC high-voltage great-current open circuit failure occurs is highly important.Its premise is exactly
It need to realize high direct voltage high-current circuit open-circuit fault dynamic analog, but similar research there is no to report at present.
Summary of the invention
For the defects in the prior art, the object of the present invention is to provide a kind of high direct voltage high-current circuit open-circuit faults
Dynamic analog electronic device, can be with the open-circuit fault of dynamic analog high direct voltage high-current circuit, and can lossless kobold repeatedly
Simulation living.
According to an aspect of the present invention, a kind of high direct voltage high-current circuit open-circuit fault dynamic analog electronics dress is provided
It sets, which is characterized in that including high voltage direct current relay, pincers pressure bypass member, control module, the first current sensor and the second electricity
Flow sensor；Wherein, high voltage direct current relay and pincers pressure bypass member are connected after being connected in parallel by its first connecting pin and second
It connects end to be connected in DC circuit, high voltage direct current relay is for the open-circuit fault of analog DC high-voltage great-current circuit and normal
Connected state, pincers pressure bypass member are used to during simulating open-circuit fault and disconnect high voltage direct current relay be high straightening
Current relay provides one and shunts in short-term and automatically by the voltage drop clamper of the input and output side of high voltage direct current relay in energy
To avoid the damage to high voltage direct current relay, control module and height in the range of avoiding the contact of high voltage direct current relay from damaging
Straightening current relay, pincers pressure bypass member circuitry phase connection are come with the on-off for controlling high voltage direct current relay and pincers pressure bypass member
Realize that the dynamic analog of open-circuit fault, the first current sensor are used to measure the electric current of high direct voltage high-current circuit, the second electricity
Flow sensor is used to measure the electric current by high voltage direct current relay, and control module passes the first current sensor and the second electric current
The current signal of sensor output and the voltage of high direct voltage high-current circuit are sampled.
Preferably, the pincers pressure bypass member is that conduction voltage drop is disconnected less than the high voltage direct current relay long-life band load
Voltage drop, load capacity is allowed to meet the bidirectional power electronic switch appropriate of the DC high-voltage circuit requirement.
Preferably, the control module is to the output signal of first current sensor and the second current sensor, straight
The each point voltage of stream high-voltage great-current circuit synchronizes sampling by its synchronized sampling circuit, and to simulate open-circuit fault and
Instruction disconnects the pincers pressure bypass member and high voltage direct current relay starts to automatically speed up sampling and is cached to high-speed memory electricity
Lu Zhong.
Preferably, the control module, which has, powers on defencive function to the high voltage direct current relay: in control module
After powering on, the pincers pressure bypass member is first instructed to connect and judge that it has been turned on according to the output signal of the first current sensor
Afterwards, then the high voltage direct current relay is instructed to connect.
Preferably, the control module has open-circuit fault simulation control function and the lower electricity to the high voltage direct current relay
Defencive function: in electricity under simulation open-circuit fault or control module need, first judge whether the pincers pressure bypass member is in connection
State instructs its connection if it is in an off state, and then instructs the high voltage direct current relay to disconnect again and according to the
After the output signal of two current sensors judges that it has been disconnected, then instructing is in an off state the pincers pressure bypass member, and
The output signal of first current sensor and the voltage of high direct voltage high-current circuit are also sampled in the process.
Preferably, it is also received by its MCU microprocessor, CAN bus communication interface in the control module, storage needs mould
Quasi- open-circuit fault information, is also sent to other equipment for the electric current of sampling, voltage.
Preferably, the control module is also connect with an open-circuit fault simulation setter, open-circuit fault simulation setting
Device is for setting the open-circuit fault that need to be simulated.
Compared with prior art, the present invention is with following the utility model has the advantages that the present invention provides a kind of big electricity of high direct voltage
Current circuit open-circuit fault dynamic analog electronic device occurs to study this kind of open circuit failure to the circuit and its use being related to
Electric equipment, system etc. influence and how research predicts whether this kind of circuit can occur open-circuit fault etc. and provide important technology
Support, has effectively filled up the blank of the prior art, can dynamic analog high direct voltage high-current circuit at any time open-circuit fault, and can
Lossless repeatedly flexible simulation.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon:
Fig. 1 is the functional block diagram for implementing high direct voltage high-current circuit open-circuit fault dynamic analog electronic device of the present invention.
Specific embodiment
The present invention is described in detail combined with specific embodiments below.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill of this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection scope.
As shown in Figure 1, high direct voltage high-current circuit open-circuit fault dynamic analog electronic device of the present invention includes high straightening
Current relay 1, pincers pressure bypass member 2, control module 3, the first current sensor 4 and the second current sensor 5；Wherein, high pressure
DC relay 1 and pincers pressure bypass member 2 pass through its first connecting pin 6 after being connected in parallel and second connection end 7 is connected on direct current
In circuit, open-circuit fault and normal connected state of the high voltage direct current relay 1 for analog DC high-voltage great-current circuit, pincers pressure
Bypass member 2 is used to mention during simulating open-circuit fault and disconnect high voltage direct current relay 1 for high voltage direct current relay 1
It is shunted in short-term for one and the voltage drop clamper of the input and output side of high voltage direct current relay 1 is being avoided that high straightening automatically
To avoid the damage to high voltage direct current relay 1, control module 3 and high voltage direct current in the range of the contact damage of current relay 1
Relay 1, pincers press the connection of 2 circuitry phase of bypass member to control the on-off of high voltage direct current relay 1 and pincers pressure bypass member 2 and come in fact
The dynamic analog of existing open-circuit fault, the first current sensor 4 are used to measure the electric current of high direct voltage high-current circuit, the second electric current
Sensor 5 is used to measure the electric current by high voltage direct current relay, and control module 3 is to the first current sensor 4 and the second electric current
The voltage of current signal and high direct voltage high-current circuit that sensor 5 exports is sampled.
The pincers pressure bypass member 2 is less than the high voltage direct current relay long-life band load for conduction voltage drop and disconnects permission electricity
Pressure drop, load capacity meet the bidirectional power electronic switch appropriate of the DC high-voltage circuit requirement, and such as two inside collect
Common emitter differential concatenation is used at the first intelligent power module 201 for having freewheeling diode and the second intelligent power module 202
The bidirectional power electronic switch of connection or the connection of common collector differential concatenation, and driven by the control module by its command synchronization
Dynamic circuit synchronizes the drive control of on-off.
The control module 3 is high to the output signal of first current sensor 4 and the second current sensor 5, direct current
The each point voltage of pressure high-current circuit synchronizes sampling by its synchronized sampling circuit 301, and to simulate open-circuit fault and
Instruction disconnects the pincers pressure bypass member 2 and high voltage direct current relay 1 starts to automatically speed up sampling and is cached to high-speed memory
In circuit 305, to guarantee to run ginseng based on the high direct voltage high-current circuit before and after these signal data open-circuit direct fault locations
The reliability of several analysis results.
The control module 3, which has, powers on defencive function to the high voltage direct current relay 1: powering in control module 3
Afterwards, after first instructing the pincers pressure bypass member 2 to connect and judge that it has been turned on according to the output signal of the first current sensor 4,
The high voltage direct current relay 1 is instructed to connect again.In the process, since the conduction voltage drop of the pincers pressure bypass member 2 is less than
The pressure drop for causing the contact of high voltage direct current relay 1 to be damaged, pincers pressure bypass member 2 are also connected in the high voltage direct current relay 1
Bypass of the process to electric current in high direct voltage high-current circuit, therefore no matter during the high voltage direct current relay 1 is connected
The electric current of the high direct voltage high-current circuit has that much, voltage is how high, will not cause the high voltage direct current relay 1
Damage.
The control module 3 has open-circuit fault simulation control function and protects to the lower electricity of the high voltage direct current relay 1
Protective function: in electricity under simulation open-circuit fault or control module 3 need, first judge the pincers pressure bypass member 2 whether in connection
State instructs its connection if it is in an off state, and then instructs the high voltage direct current relay 1 to disconnect again and according to the
After the output signal of two current sensors 5 judges that it has been disconnected, then instructing is in an off state the pincers pressure bypass member 2,
And the output signal of first current sensor 4 and the voltage (packet of high direct voltage high-current circuit are also sampled in the process
Include the voltage between pressure drop, its both ends and the DC power supply at 1 both ends of high voltage direct current relay between positive or negative pole).It crosses herein
Cheng Zhong, since the conduction voltage drop of the pincers pressure bypass member 2 is less than the pressure drop for causing the contact of high voltage direct current relay 1 to be damaged,
Pincers pressure bypass member 2 is in 1 disconnection process of high voltage direct current relay automatically to the electric current by the high voltage direct current relay 1
Bypassed, thus no matter the electric current of the high direct voltage high-current circuit described in 1 disconnection process of high voltage direct current relay
Have that much, voltage is how high, the damage of the high voltage direct current relay will not be caused.To realize the dynamic of open-circuit failure
Morphotype is quasi-, and can lossless repeatedly flexible simulation.
It is also received by its MCU microprocessor 303, CAN bus communication interface 304 in the control module 3, storage needs mould
The signals such as the electric current of sampling, voltage are also sent to other equipment by quasi- open-circuit fault information.
The control module 3 is also connect with an open-circuit fault simulation setter 8, which simulates setter 8 and use
In the open-circuit fault that setting need to simulate.
A kind of high direct voltage high-current circuit open-circuit fault dynamic analog electronic device is present embodiments provided, to study this
Class open circuit failure occurs to influence the circuit and its electrical equipment being related to, system etc. and studies how to predict this kind of electricity
Whether road, which can occur open-circuit fault etc., provides important technical support, has effectively filled up the blank of the prior art, can move at any time
Morphotype intends the open-circuit fault of high direct voltage high-current circuit, and can lossless repeatedly flexible simulation.
Specific embodiments of the present invention are described above.It is to be appreciated that the invention is not limited to above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring substantive content of the invention.
Claims (6)
1. a kind of high direct voltage high-current circuit open-circuit fault dynamic analog electronic device, which is characterized in that including high voltage direct current
Relay, pincers pressure bypass member, control module, the first current sensor and the second current sensor；Wherein, high voltage direct current relay
Device and pincers pressure bypass member are connected in DC circuit after being connected in parallel by its first connecting pin and second connection end, high straightening
Open-circuit fault and normal connected state of the current relay for analog DC high-voltage great-current circuit, pincers pressure bypass member are used for
It simulates open-circuit fault and is shunted providing one during the disconnection of high voltage direct current relay for high voltage direct current relay in short-term simultaneously
Automatically the voltage drop clamper of the input and output side of high voltage direct current relay is damaged in the contact for being avoided that high voltage direct current relay
To avoid the damage to high voltage direct current relay, control module and high voltage direct current relay, pincers pressure bypass member in the range of wound
Circuitry phase connection realizes the dynamic analog of open-circuit fault to control the on-off of high voltage direct current relay and pincers pressure bypass member, the
One current sensor is used to measure the electric current of high direct voltage high-current circuit, and the second current sensor passes through high straightening for measuring
The electric current of current relay, the current signal and direct current that control module exports the first current sensor and the second current sensor
The voltage of high-voltage great-current circuit is sampled；
Pincers pressure bypass member be conduction voltage drop be less than the high voltage direct current relay long-life band carry disconnect allow voltage drop,
Load capacity meets the bidirectional power electronic switch appropriate of the DC high-voltage circuit requirement.
2. high direct voltage high-current circuit open-circuit fault dynamic analog electronic device according to claim 1, feature exist
In output signal, high direct voltage high current of the control module to first current sensor and the second current sensor
The each point voltage of circuit synchronizes sampling by its synchronized sampling circuit, and instructs described in disconnection from for simulation open-circuit fault
Pincers pressure bypass member and high voltage direct current relay, which start to automatically speed up, to be sampled and is cached in high speed memory circuit.
3. high direct voltage high-current circuit open-circuit fault dynamic analog electronic device according to claim 1, feature exist
In the control module, which has, powers on defencive function to the high voltage direct current relay: after control module powers on, first instructing
After the pincers pressure bypass member is connected and judges that it has been turned on according to the output signal of the first current sensor, then instruct the height
Straightening current relay is connected.
4. high direct voltage high-current circuit open-circuit fault dynamic analog electronic device according to claim 1, feature exist
In the control module has open-circuit fault simulation control function and the lower electric protection function to the high voltage direct current relay:
When simulation open-circuit fault or control module need to descend electricity, whether in an ON state the pincers pressure bypass member is first judged, if its
It is in an off state, instructs its connection, the high voltage direct current relay is then instructed to disconnect and according to the second current sensor again
Output signal judge that it has been disconnected after, then instructing is in an off state pincers pressure bypass member, and in the process also
Sample the output signal of first current sensor and the voltage of high direct voltage high-current circuit.
5. high direct voltage high-current circuit open-circuit fault dynamic analog electronic device according to claim 1, feature exist
In the open-circuit fault that need to be also simulated by its MCU microprocessor, the reception of CAN bus communication interface, storage in the control module
The electric current of sampling, voltage are also sent to other equipment by information.
6. high direct voltage high-current circuit open-circuit fault dynamic analog electronic device according to claim 1, feature exist
In the control module is also connect with an open-circuit fault simulation setter, which simulates setter and need for setting
The open-circuit fault of simulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757419.6A CN105572495B (en) | 2015-11-09 | 2015-11-09 | High direct voltage high-current circuit open-circuit fault dynamic analog electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510757419.6A CN105572495B (en) | 2015-11-09 | 2015-11-09 | High direct voltage high-current circuit open-circuit fault dynamic analog electronic device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105572495A CN105572495A (en) | 2016-05-11 |
| CN105572495B true CN105572495B (en) | 2019-08-23 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827249A2 (en) * | 1996-08-26 | 1998-03-04 | Delco Electronics Corporation | Safety ground detector |
| CN1374727A (en) * | 2001-03-02 | 2002-10-16 | 株式会社东芝 | Protective relay device |
| CN101419266A (en) * | 2008-12-01 | 2009-04-29 | 中国电力科学研究院 | Dynamic analog method for extra-high voltage transformer |
| CN202058647U (en) * | 2011-03-21 | 2011-11-30 | 南京民盛电子仪器有限公司 | Protective circuit for high-voltage relay |
| CN102684137A (en) * | 2012-05-09 | 2012-09-19 | 潍柴动力股份有限公司 | System and method for safely powering on/off high-voltage circuits |
| EP1464973B1 (en) * | 2003-03-31 | 2015-07-01 | Megger Sweden AB | Methods and apparatus for analyzing high voltage circuit breakers |
-
2015
- 2015-11-09 CN CN201510757419.6A patent/CN105572495B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827249A2 (en) * | 1996-08-26 | 1998-03-04 | Delco Electronics Corporation | Safety ground detector |
| CN1374727A (en) * | 2001-03-02 | 2002-10-16 | 株式会社东芝 | Protective relay device |
| EP1464973B1 (en) * | 2003-03-31 | 2015-07-01 | Megger Sweden AB | Methods and apparatus for analyzing high voltage circuit breakers |
| CN101419266A (en) * | 2008-12-01 | 2009-04-29 | 中国电力科学研究院 | Dynamic analog method for extra-high voltage transformer |
| CN202058647U (en) * | 2011-03-21 | 2011-11-30 | 南京民盛电子仪器有限公司 | Protective circuit for high-voltage relay |
| CN102684137A (en) * | 2012-05-09 | 2012-09-19 | 潍柴动力股份有限公司 | System and method for safely powering on/off high-voltage circuits |
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| CN105572495A (en) | 2016-05-11 |
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