CN207124573U - A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost - Google Patents
A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost Download PDFInfo
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- CN207124573U CN207124573U CN201721049382.2U CN201721049382U CN207124573U CN 207124573 U CN207124573 U CN 207124573U CN 201721049382 U CN201721049382 U CN 201721049382U CN 207124573 U CN207124573 U CN 207124573U
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- power supply
- accessory power
- circuit
- pressure accessory
- permanent magnet
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Abstract
The utility model proposes a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost; high pressure accessory power supply with the power taking from dc bus and the low pressure accessory power supply from outer low pressure power supply; also include the modules such as control system, drive circuit, hardware protection circuit, the power supply of drive circuit is simultaneously from high pressure accessory power supply and low pressure accessory power supply.
Description
Technical field
The present invention relates to a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost.
Background technology
In recent years, the application with interpolation type motor in electric automobile field is more and more extensive, and interpolation type motor belt motor is come
The problem of also increasingly paid attention to by everybody.Interpolation type motor has that working range is wide, the more low advantage of cost, but its also band
The problems such as depth weak magnetic causes reverse induction potential higher is carried out.Plan is protected according to traditional passive type such as power system is closed
Slightly, when motor speed is higher, reverse induction potential will directly rush to bus, cause bus overvoltage, burn the various devices on bus
Part.Therefore, in electric automobile, frequently with active fault control, by motor three-phase terminal short circuit, bus will not thus be caused
Overvoltage.
The content of the invention
1）The technical problem of solution
The embodiment of active fault control is mainly realized by the conducting of lower three pipe or the conducting of upper three pipe of three phase full bridge.
On（Under or）The conducting of three pipes needs to drive its open-minded by drive circuit.The work of drive circuit is again relied on as drive circuit
The accessory power supply of power supply.And the work of accessory power supply again relies on its power supply.Drive circuit also needs to control system and sent
On（Under or）The drive signal of three pipes conducting.This, which is resulted in, implements all many conditions of active fault control needs, lacks any one
The failure of active short-circuit protection can be caused.And such case will be avoided strongly on automobile, and at present to control in industry
The redundancy research of system processed is more, and the redundancy research to other parts is less.Technical scheme proposed by the present invention solves above-mentioned
Problem, the reliability of system is improved with relatively low cost.
2）Technical scheme
The present invention proposes a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost, and its main thought is for reality
Now active short-circuit protection, each necessary links carry out double copies Redundancy Design.As accessory power supply uses the height from high voltage bus power taking
Press accessory power supply and the low pressure accessory power supply from low pressure power taking；Outside control system, increase in addition by the only of accessory power supply power supply
Vertical hardware protection circuit is used for output driving protection signal.And for control cost, it is not necessary to link can not use it is double
Redundancy backup., can be only by low such as the power supply of control system（It is or high）Pressure system is powered；As three phase full bridge upper tube drives
Accessory power supply is only with height（It is or low）Press accessory power supply.
3）Beneficial effect
The double copies redundancy of each link of active short-circuit protection is realized using relatively low cost.
Brief description of the drawings
Annexation in Fig. 1 between high pressure accessory power supply and low pressure accessory power supply and other each modules.
Embodiment
A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost, it is characterised in that have from dc bus
The high pressure accessory power supply of power taking and the low pressure accessory power supply from outer low pressure power supply, in addition to control system, drive circuit, hardware
The modules such as protection circuit.
The power supply of drive circuit passes through confession simultaneously from high pressure accessory power supply and low pressure accessory power supply, high pressure accessory power supply
Electrical circuit is powered for driving, and low pressure accessory power supply is drive circuitry also by current supply circuit.
The power supply of hardware protection circuit is led to simultaneously from high pressure accessory power supply and low pressure accessory power supply, high pressure accessory power supply
Cross current supply circuit to power for hardware protection circuit, low pressure accessory power supply is powered also by current supply circuit for hardware protection circuit.
The power supply of control system is simultaneously from high pressure accessory power supply and low pressure accessory power supply, and high pressure accessory power supply is with controlling
There is current supply circuit between system, low pressure accessory power supply also has current supply circuit between control system.
There is protection signal link between hardware protection circuit and drive circuit, there is the preferential electricity of protection inside drive circuit
Road ensures to receive the pwm signal that protection signal carries out protection act and ignores control system transmission.
To reduce cost, low pressure accessory power supply exports low side driving power all the way, does not export flash driving power.
Low pressure accessory power supply provides power supply needed for active short-circuit protection only when high pressure accessory power supply fails, thus power compared with
Small, the driving power power of low pressure accessory power supply output is less than the 30% of high pressure accessory power supply.
Hardware protection circuit has the comparator circuit for comparing busbar voltage and setting value, when voltage is higher than setting value,
Comparator acts.
Hardware protection circuit has latch cicuit, after comparator action, can maintain fault-signal, and maintains to arrive down
Electricity.
There is hardware protection circuit power supply under-voltage to detect circuit, when powering under-voltage, not export error protection letter
Number.
Claims (10)
1. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost, it is characterised in that have and taken from dc bus
The high pressure accessory power supply of electricity and the low pressure accessory power supply from outer low pressure power supply, in addition to control system, drive circuit, hardware package
Protection circuit module.
2. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that drive
The power supply of dynamic circuit is drive by current supply circuit simultaneously from high pressure accessory power supply and low pressure accessory power supply, high pressure accessory power supply
Dynamic power supply, low pressure accessory power supply is drive circuitry also by current supply circuit.
3. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that hard
The power supply of part protection circuit passes through current supply circuit simultaneously from high pressure accessory power supply and low pressure accessory power supply, high pressure accessory power supply
Powered for hardware protection circuit, low pressure accessory power supply is powered also by current supply circuit for hardware protection circuit.
A kind of 4. highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that control
The power supply of system processed has simultaneously from high pressure accessory power supply and low pressure accessory power supply between high pressure accessory power supply and control system
Current supply circuit, low pressure accessory power supply also have current supply circuit between control system.
5. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that hard
There is protection signal link between part protection circuit and drive circuit, there is protection priority circuit to ensure to receive inside drive circuit
Protection act is carried out to protection signal and ignores the pwm signal of control system transmission.
6. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that low
Accessory power supply output low side driving power all the way is pressed, does not export flash driving power.
7. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that low
The driving power power of accessory power supply output is pressed to be less than the 25% of high pressure accessory power supply.
8. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that hard
Part protection circuit has the comparator circuit for comparing busbar voltage and setting value, when voltage is higher than setting value, comparator action.
9. a kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that hard
Part protection circuit has latch cicuit, after comparator action, can maintain fault-signal, and maintains to arrive lower electricity.
A kind of 10. highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost as claimed in claim 1, it is characterised in that
There is hardware protection circuit power supply under-voltage to detect circuit, when powering under-voltage, not export error protection signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049382.2U CN207124573U (en) | 2017-08-22 | 2017-08-22 | A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721049382.2U CN207124573U (en) | 2017-08-22 | 2017-08-22 | A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207124573U true CN207124573U (en) | 2018-03-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721049382.2U Active CN207124573U (en) | 2017-08-22 | 2017-08-22 | A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207124573U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108493904A (en) * | 2018-05-08 | 2018-09-04 | 上海金脉电子科技有限公司 | IGBT Safety Shutdown Systems and method for automobile motor shutdown |
| CN109660152A (en) * | 2017-08-22 | 2019-04-19 | 南京顿恩电气有限公司 | A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost |
-
2017
- 2017-08-22 CN CN201721049382.2U patent/CN207124573U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109660152A (en) * | 2017-08-22 | 2019-04-19 | 南京顿恩电气有限公司 | A kind of highly reliable interpolation type Permanent Magnet Synchronous Motor Controller of low cost |
| CN108493904A (en) * | 2018-05-08 | 2018-09-04 | 上海金脉电子科技有限公司 | IGBT Safety Shutdown Systems and method for automobile motor shutdown |
| CN108493904B (en) * | 2018-05-08 | 2019-12-17 | 上海金脉电子科技有限公司 | IGBT safety turn-off system and method for turning off vehicle motor |
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