CN109245629A - The FOC control system of no electrolytic capacitor magneto - Google Patents
The FOC control system of no electrolytic capacitor magneto Download PDFInfo
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- CN109245629A CN109245629A CN201811173740.XA CN201811173740A CN109245629A CN 109245629 A CN109245629 A CN 109245629A CN 201811173740 A CN201811173740 A CN 201811173740A CN 109245629 A CN109245629 A CN 109245629A
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- electrolytic capacitor
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/08—Arrangements for controlling the speed or torque of a single motor
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
The invention discloses a kind of magneto FOC control systems of no electrolytic capacitor, on the basis of traditional FOC control program, increase function of voltage module Rate, in addition have modified MTPA module.Row normalization is carried out as function of voltage to input voltage to be multiplied with speed ring output Is, then carries out Id and Iq decoupling again.The present invention is on the basis of traditional FOC control, only needing to increase seldom operand can be realized the thin-film capacitor that the big electrolytic capacitor in traditional topological circuit is substituted for very little, higher power factor can also be obtained simultaneously, and the parameter of the speed ring and electric current loop in control system remains unchanged, it realizes and ideal control effect is obtained with the smallest cost, avoid and make dramatically changing for control system because of the cost declining of application.
Description
Technical field
The present invention relates to motor-drive technique fields, control more particularly to a kind of FOC of no electrolytic capacitor magneto
System.
Background technique
Currently, magneto driving mainstream is all using topology shown in Fig. 1, i.e. power supply passes through inductance L, using rectification
Then bridge is filtered pressure stabilizing by electrolytic capacitor C, finally exported by each bridge arm.Generally for system is operated normally, it is electrolysed
Generally all value is bigger for capacitor, and the cost of manufacture of such system is relatively high, and the topology greatest drawback is system
Power factor is low in operational process, does not meet requirement of the power grid to power factor.
To cope with above two reason, occur in recent years using big in small 1 topology of thin-film capacitor alternate figures
Electrolytic capacitor makes the motor driven side power moment be equal to mains input side power by using power balance theory, and meets
Constant ideal conditions, that is, source side power factor is 1.The hardware cost for greatly reducing system in this way simplifies Fig. 1 topology
Auxiliary circuit.But it is this change so that control operation complexity be significantly increased, increase the debugging difficulty of system.
Summary of the invention
In view of the existing technical defect, this invention address that providing a kind of FOC control of no electrolytic capacitor magneto
System processed reduces the complexity of control operation when big electrolytic capacitor is substituted for thin-film capacitor.
To achieve the goals above, the technical solution adopted by the present invention is as follows.
A kind of magneto FOC control system of no electrolytic capacitor, including speed ring module, function of voltage module and MTPA
Module,
Function of voltage module includes peak value module, amplification module and normalization module, and input signal is alternating voltage, exchange
Voltage passes through peak value module all the way and obtains alternating voltage peak, carries out the amplification of 2 12 powers times by amplification module all the way,
Module is normalized by amplified alternating voltage divided by alternating voltage peak, obtains the function of voltage no more than 1；
MTPA module includes multiplier module and decoupling module, and the reference current Is of speed ring ASR module output inputs multiplication
Module, function of voltage also input multiplier module, and the reference current changed with voltage peak is obtained after the multiplication of multiplier module
Is, with the reference current Is output valve decoupling module that voltage peak changes, decoupling module exports the reference current of dq axis.
The present invention has the characteristics that certain regulating power using speed ring PI, and ASR link output bandwidth is relatively low
Usually in 15rad/sec, thus ASR link export Is on the basis of multiplied by function of voltage module Rate output, obtain with
The Is reference current of voltage change, Is are decoupled to obtain system dq axis reference current by MTPA, remaining controlling unit with
Traditional FOC control is consistent.The present invention is on the basis of traditional FOC control, it is only necessary to increase seldom operand can be realized by
Big electrolytic capacitor in traditional topological circuit is substituted for the thin-film capacitor of very little, while can also obtain higher power factor,
And the parameter of the speed ring and electric current loop in control system remains unchanged, and realizes and obtains ideal control with the smallest cost
Effect avoids and makes dramatically changing for control system because of the cost declining of application.
Detailed description of the invention
Fig. 1 is the topological structure schematic diagram of traditional magneto driving circuit；
Fig. 2 is the schematic diagram of magneto FOC control circuit；
Fig. 3 is the schematic diagram of function of voltage module；
Fig. 4 is the schematic diagram of MTPA module；
Fig. 5 is using the solution of the present invention to the tracing figure of magneto speed；
Fig. 6 is the speed tracing figure for the no electrolytic capacitor magneto realized using power balance theory；
Fig. 7 is using the solution of the present invention to the tracing figure of magneto dq shaft current；
Fig. 8 is the tracing figure for the no electrolytic capacitor magneto dq shaft current realized using power balance theory；
Fig. 9 is using the solution of the present invention to the tracing figure of magneto source current；
Figure 10 is the tracing figure for the no electrolytic capacitor magneto source current realized using power balance theory.
Specific embodiment
The embodiment of the present invention is illustrated with reference to the accompanying drawing.
It mainly include speed ring ASR module, electric current loop if the controlling unit of Fig. 2 system follows traditional FOC controlling unit
ACR module, position estimation, transform part TRANS, MTPA module, weak magnetic module WKFLX and SPWM module, and sampling
Module.The design increases function of voltage module Rate, in addition has modified MTPA module.
The present invention mainly on the basis of traditional FOC control algolithm, increases the operation of function of voltage, about voltage letter
Number is mainly the desire to obtain the function that an output is not more than 1, and the function and voltage ratio reduce.It therefore is to seek this
Function, we must acquire the peak value of voltage, seek about peak value, it is intended that it can follow the variation of voltage peak in due course and
Variation, while it is too fast also to wish that it will not change, thus we will also be filtered when tentatively obtaining voltage peak, thus
The smooth transition of realization system.The function is also suitable when input is three phase mains.
1, the realization of function of voltage:
As shown in figure 3, being divided into two-way after voltage Vac input, wherein peaking is used for all the way, in addition all the way in amplification 2
It removes after 12 powers times in the output of peak value module, to obtain the function of voltage that maximum value is no more than 1.
2, the MPTA module after changing
As shown in figure 4, when tradition FOC is controlled, IsRef be directly inputted to the seeking of rear end MTPA angle, IdRef and
The calculating of IqRef, the link being multiplied without IsRef with function of voltage output Rate.
Realize effect:
1, using tracking situation such as Fig. 5 of simple no electrolytic capacitor scheme speed, the nothing realized using power balance theory
The velocity tracking scenario of electrolytic capacitor scheme such as Fig. 6.The speed tracing effect that two methods obtain is almost the same, introducing
100Hz vibration amplitude is also almost the same.
2, using tracking situation such as Fig. 7 of simple no electrolytic capacitor control program Id and Iq, power balance theory reality is used
Tracking situation such as Fig. 8 of existing no electrolytic capacitor scheme Id and Iq are more preferable than easy scheme tracking.
3, simple no electrolytic capacitor scheme source current such as Fig. 9 slightly has some distortion from bottom recovery process in voltage,
But power factor also can be relatively high.Power balance theory realize no electrolytic capacitor scheme source current such as Figure 10, have than
The slightly higher power factor of simple no electrolytic capacitor scheme.
In summary some, the FOC control program of the easy no electrolytic capacitor magneto of the present invention is put down with according to power
The no electrolytic capacitor control program that the principle that weighs is realized there is no difference both on speed tracing；But Id's and Iq
Tracking is slightly almost than the latter；And in the power factor of power supply, the latter is slightly strong.But answering in some inexpensive low-costs
Have the development cycle short with the simple control program of occasion, verifying cost is low, and the feature that software upgrading is easy.
The control of no electrolytic capacitor magneto, this system may be implemented using the present invention under single phase poaer supply application scenarios
With scalability, the occasion using three phase power application can extend to, the present invention is used under three phase power application scene
The control of no electrolytic capacitor magneto may be implemented.
Embodiments of the present invention above described embodiment only expresses, the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (2)
1. a kind of magneto FOC control system of no electrolytic capacitor, which is characterized in that
Including speed ring module, function of voltage module and MTPA module,
Function of voltage module includes peak value module, amplification module and normalization module, and input signal is alternating voltage, alternating voltage
Alternating voltage peak is obtained by peak value module all the way, carries out the amplification of 2 12 powers times, normalization by amplification module all the way
Amplified alternating voltage divided by alternating voltage peak, is obtained the function of voltage no more than 1 by module；
MTPA module includes multiplier module and decoupling module, and the reference current Is of speed ring ASR module output inputs multiplier module,
Function of voltage also inputs multiplier module, and the reference current Is changed with voltage peak is obtained after the multiplication of multiplier module, with
The reference current Is output valve decoupling module of voltage peak variation, decoupling module export the reference current of dq axis.
2. the magneto FOC control system of no electrolytic capacitor according to claim 1, which is characterized in that
The alternating voltage of function of voltage module input can be single-phase voltage or three-phase voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173740.XA CN109245629A (en) | 2018-10-09 | 2018-10-09 | The FOC control system of no electrolytic capacitor magneto |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811173740.XA CN109245629A (en) | 2018-10-09 | 2018-10-09 | The FOC control system of no electrolytic capacitor magneto |
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| CN201811173740.XA Pending CN109245629A (en) | 2018-10-09 | 2018-10-09 | The FOC control system of no electrolytic capacitor magneto |
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Citations (5)
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|---|---|---|---|---|
| KR20140064433A (en) * | 2012-11-20 | 2014-05-28 | 삼성전기주식회사 | Eletrolysis capacitorless inverter driving apparatus |
| EP2804311A1 (en) * | 2012-01-12 | 2014-11-19 | Panasonic Corporation | Inverter control device |
| CN105119536A (en) * | 2015-08-25 | 2015-12-02 | 上海交通大学 | Low-cost motor drive topology and control method thereof |
| CN106655947A (en) * | 2016-10-24 | 2017-05-10 | 东南大学 | Permanent magnet synchronous motor control algorithm for improving transient stability of small capacity dc bus capacitor voltage |
| CN106982022A (en) * | 2017-04-27 | 2017-07-25 | 广东工业大学 | A kind of starting method of no electrolytic capacitor inverter permagnetic synchronous motor |
-
2018
- 2018-10-09 CN CN201811173740.XA patent/CN109245629A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2804311A1 (en) * | 2012-01-12 | 2014-11-19 | Panasonic Corporation | Inverter control device |
| KR20140064433A (en) * | 2012-11-20 | 2014-05-28 | 삼성전기주식회사 | Eletrolysis capacitorless inverter driving apparatus |
| CN105119536A (en) * | 2015-08-25 | 2015-12-02 | 上海交通大学 | Low-cost motor drive topology and control method thereof |
| CN106655947A (en) * | 2016-10-24 | 2017-05-10 | 东南大学 | Permanent magnet synchronous motor control algorithm for improving transient stability of small capacity dc bus capacitor voltage |
| CN106982022A (en) * | 2017-04-27 | 2017-07-25 | 广东工业大学 | A kind of starting method of no electrolytic capacitor inverter permagnetic synchronous motor |
Non-Patent Citations (2)
| Title |
|---|
| 周星野: "无电解电容逆变器驱动下的永磁同步电机的应用研究", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
| 王琨: "用于永磁同步电机的新型无电解电容功率变换器研究与设计", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
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Application publication date: 20190118 |