CN104113262B - A kind of convertible frequency air-conditioner and its electric machine control system based on Z source converters - Google Patents
A kind of convertible frequency air-conditioner and its electric machine control system based on Z source converters Download PDFInfo
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Abstract
The invention belongs to convertible frequency air-conditioner technical field, there is provided a kind of convertible frequency air-conditioner and its electric machine control system based on Z source converters.The present invention provide be based on Z source converters electric machine control system suppressed by the soft starting circuit surge produced on startup to convertible frequency air-conditioner with prevent rectification circuit and Z source converters cause because of temporary over-current power switch trip and device overcurrent damage, by Z source converters, the circuit topology that switching tube and filter circuit are constituted can improve boost capability when ensureing that the conducting dutycycle of switching tube is less than 0.5, operated by inverter AC motor simultaneously, and wide scope Regulation Control and Power Factor Correction Control are realized to Z source converters by control unit control inverter, so as to straight-through phenomenon occurs in the upper and lower bridge arm switching tube for allowing inverter, improve the job security of inverter, eliminate influence of the dead band time setting to inverter output current harmonic wave, and reduce motor torque fluctuation and reduce motor noise.
Description
Technical field
The invention belongs to convertible frequency air-conditioner technical field, more particularly to a kind of convertible frequency air-conditioner and its electricity based on Z source converters
Machine control system.
Background technology
In traditional convertible frequency air-conditioner, the PFC for being used（Power Factor Correction, PFC）
Circuit realizes that, when PFC is realized, the switching tube in BOOST circuits has conduction loss using BOOST circuit topological structures
And switching loss, and then reduce conversion efficiency, at the same the switching tube in BOOST circuits also there is excessively stream and excess temperature is damaged can
Energy property, so as to cause the functional reliability of convertible frequency air-conditioner poor；Furthermore, by the motor or direct current wind of the compressor of inverter control
The motor of machine is the critical piece of convertible frequency air-conditioner, and inverter can cause on its inside because of reasons such as control error or electromagnetic interferences
The switching tube of lower bridge arm occurs straight-through and is damaged, and then causes frequency-conversion air-conditioning system to be damaged.
For the switching tube for avoiding inverter internal occurs to lead directly to, prior art is controlled by the way of Dead Time is set
Lower bridge arm switching device is not turned in the same time.But, Dead Time is set to the upper and lower bridge arm switching device in inverter
The quality of output current wave can be influenceed again, deteriorated so as to the output current harmonics for causing inverter distort, the torque ripple of motor
Dynamic big and noise is big, and the further job stability and reliability of influence convertible frequency air-conditioner.
The content of the invention
It is an object of the invention to provide a kind of electric machine control system based on Z source converters, it is intended to solve prior art
The existing problem that torque ripple is big and noise is big for causing inverter output current harmonics distortion, motor occur.
The present invention is achieved in that a kind of electric machine control system based on Z source converters, with motor connection, including control
Unit processed, described control unit is connected with the indoor set of convertible frequency air-conditioner；
The electric machine control system also includes：
Soft starting circuit, rectification circuit, Z source converters, switching tube, filter circuit and inverter；
The input and output end of the soft starting circuit are connecting the zero line and the rectification circuit of power network just respectively
Input, the first control end of the soft starting circuit and the second control end connection described control unit, the rectification circuit
Negative input end connects the zero line side of the power network, and the positive output end of the rectification circuit connects the positive input of the Z source converters
End, the negative output terminal of the rectification circuit is connected with the negative input end of the Z source converters, the positive output of the Z source converters
End connects the input of the switching tube and the input of the filter circuit, the positive output end connection of the filter circuit simultaneously
The positive input terminal of the inverter, the negative output terminal of the Z source converters connects the output end of the switching tube, the filter simultaneously
The multiple of the negative input end of the negative output terminal of wave circuit and the inverter, the control end of the switching tube and the inverter
Control end is connected with described control unit, and the connection of the U phase output terminals of the inverter, V phase output terminals and W phase output terminals is described
Motor, the inverter includes bridge arm switching tube and lower bridge arm switching tube.
Another object of the present invention also resides in a kind of convertible frequency air-conditioner of offer, the convertible frequency air-conditioner include indoor set, motor with
And the above-mentioned electric machine control system based on Z source converters.
The present invention is by using including soft starting circuit, rectification circuit, Z source converters, switching tube, filter circuit and inverse
Become the electric machine control system based on Z source converters of device, by the soft starting circuit surge produced on startup to convertible frequency air-conditioner
Suppressed with prevent rectification circuit and Z source converters cause because of temporary over-current power switch trip and device overcurrent damage,
The job security of system is ensure that, the circuit topology being made up of Z source converters, switching tube and filter circuit ensures switching tube
Conducting dutycycle can improve boost capability when being less than 0.5, and the deadline of switching tube is long, be conducive to radiating, while passing through
Inverter AC motor is operated, and realizes wide scope Regulation Control and power to Z source converters by control unit control inverter
Factor correcting is controlled, so as to allow the upper and lower bridge arm switching tube of inverter straight-through phenomenon occur, improves the work peace of inverter
Quan Xing, eliminates the influence of the setting of Dead Time to the output current harmonics of inverter, and reduce the torque ripple of motor
With the noise for reducing motor.
Brief description of the drawings
Fig. 1 is the function structure chart of the electric machine control system based on Z source converters that the embodiment of the present invention is provided；
Fig. 2 is the exemplary circuit structure chart of the frequency-conversion air-conditioning system based on Z source converters that one embodiment of the invention is provided；
Fig. 3 is the exemplary circuit structure of the frequency-conversion air-conditioning system based on Z source converters that another embodiment of the present invention is provided
Figure；
Fig. 4 is the Z source converters involved by the electric machine control system based on Z source converters that the embodiment of the present invention is provided
The circuit structure diagram of derivative circuit.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Below to the motor control based on Z source converters provided in an embodiment of the present invention by taking the application in convertible frequency air-conditioner as an example
System processed is described in detail：
Convertible frequency air-conditioner includes indoor set, motor and the electric machine control system based on Z source converters, wherein, motor can be with
It is the compressor electric motor or DC fan motor in outdoor unit.
Fig. 1 shows the modular structure of the electric machine control system based on Z source converters that the embodiment of the present invention is provided, and is
It is easy to explanation, illustrate only part related to the present invention, details are as follows：
The electric machine control system 100 based on Z source converters that the embodiment of the present invention is provided is connected with motor 200, motor
Control system 100 includes control unit 107, and control unit 107 is connected with the indoor set of convertible frequency air-conditioner, and it is internal including room
Interior master controller, outdoor governor circuit and outdoor drive circuit.
Electric machine control system 100 also includes soft starting circuit 101, rectification circuit 102, Z source converters 103, switching tube
104th, filter circuit 105 and inverter 106.
The input and output end of soft starting circuit 101 connect respectively power network zero line L and rectification circuit 102 it is just defeated
Enter end, the first control end of soft starting circuit 101 and the second control end connection control unit 107, the negative input of rectification circuit 102
The zero line side N of end connection power network, the positive input terminal of the positive output end connection Z source converters 103 of rectification circuit 102, rectification circuit
102 negative output terminal is connected with the negative input end of Z source converters 103, and the positive output end of Z source converters 103 is while connecting valve
The input of pipe 104 and the input of filter circuit 105, the positive output end of filter circuit 105 connect the positive input of inverter 106
End, the negative output terminal of Z source converters 103 simultaneously the output end of connecting valve pipe 104, the negative output terminal of filter circuit 105 and
The negative input end of inverter 106, the control end of switching tube 104 and multiple control ends of inverter 106 connect with control unit 107
Connect, the U phase output terminals of inverter 106, V phase output terminals and W phase output terminals connection motor 200, inverter 106 include bridge arm
Switching tube and lower bridge arm switching tube.
Fig. 2 shows the exemplary circuit structure of the electric machine control system based on Z source converters provided in an embodiment of the present invention,
For convenience of description, part related to the present invention is illustrate only, details are as follows：
Used as one embodiment of the invention, soft starting circuit 101 includes relay RL and positive temperature coefficient resistor PTC, relay
The first control contact 1 and second control contact 2 of device RL is respectively the first control end and second control of soft starting circuit 101
The common contact of end, the switch contact 3 of relay RL and the first end of positive temperature coefficient resistor PTC is used as soft starting circuit 101
The common contact at input, the normally opened contact 4 of relay RL and second end of positive temperature coefficient resistor PTC is used as soft starting circuit
101 output end.
Used as one embodiment of the invention, rectification circuit 102 includes rectifier bridge BD and the first electrochemical capacitor C, rectifier bridge BD's
Positive input terminal 1 and negative input end 2 are respectively the positive input terminal and negative input end of rectification circuit 102, the output end 3 of rectifier bridge BD with
The common contact of the positive pole of the first electrochemical capacitor C as rectification circuit 102 positive output end, the earth terminal 4 and first of rectifier bridge BD
The common contact of the negative pole of electrochemical capacitor C as rectification circuit 102 negative output terminal.
Used as one embodiment of the invention, Z source converters 103 include：
Diode D1, the first inductance L1, the first storage capacitor C1, the second storage capacitor C2 and the second inductance L2；
The anode of diode D1 is the positive input terminal of Z source converters 103, the negative electrode of diode D1 and the first storage capacitor C1
Positive pole be connected to the first end of the first inductance L1 altogether, second end of the first inductance L1 connects altogether with the positive pole of the second storage capacitor C4
Point as Z source converters 103 positive output end, the common contact of the first end of the negative pole of the second storage capacitor C2 and the second inductance L2
Used as the negative input end of Z source converters 103, the common contact at second end of the negative pole of the first storage capacitor C1 and the second inductance L2 is made
It is the negative output terminal of Z source converters 103.
Used as one embodiment of the invention, switching tube 104 can be IGBT（Isolated Gate Bipolar
Transistor, insulated gate bipolar IGCT）, metal-oxide-semiconductor or other possess the all-controlled semiconductor device of switching characteristic.At this
In inventive embodiments, switching tube 104 is preferably IGBT, as shown in Fig. 2 the grid of IGBT, collector and emitter are respectively out
Close control end, input and the output end of pipe 104；When switching tube 104 possesses the all-controlled semiconductor device of switching characteristic for other
When, each end pole of selected all-controlled semiconductor device and the control of switching tube 104 are determined for the purpose of realizing switching characteristic
End, the corresponding relation between input and output end.
Used as one embodiment of the invention, filter circuit 105 includes the 3rd inductance L3 and the second electrochemical capacitor C3, the 3rd inductance
The first end of L3 is the input of filter circuit 105, and second end of the 3rd inductance L3 is total to the positive pole of the second electrochemical capacitor C3
Contact as filter circuit 105 positive output end, the negative pole of the second electrochemical capacitor C3 is the negative output terminal of filter circuit 105.
Used as one embodiment of the invention, inverter 106 includes：
First switch pipe 1061, second switch pipe 1062, the 3rd switching tube 1063, the 4th switching tube the 1064, the 5th are switched
The switching tube 1066 of pipe 1065 and the 6th；
The input of the input of first switch pipe 1061 and the input of second switch pipe 1062 and the 3rd switching tube 1063
The common contact at end as inverter 106 positive input terminal, the output end of first switch pipe 1061 is defeated with the 4th switching tube 1064
Enter the common contact at end as the U phase output terminals of inverter 106, the output end of second switch pipe 1062 and the 5th switching tube 1065
The common contact of input as inverter 106 V phase output terminals, the output end of the 3rd switching tube 1063 and the 6th switching tube 1066
Input common contact as inverter 106 W phase output terminals, the output end of the 4th switching tube 1064 and the 5th switching tube
The common contact of the output end of 1065 output end and the 6th switching tube 1066 as inverter 106 negative input end, first switch
The control end of pipe 1061, the control end of second switch pipe 1062, the control end of the 3rd switching tube 1063, the 4th switching tube 1064
The control end of control end, the control end of the 5th switching tube 1075 and the 6th switching tube 1066 is respectively the first of inverter 106
Control end, the second control end, the 3rd control end, the 4th control end, the 5th control end and the 6th control end, and and control unit
107 connections.
Wherein, first switch pipe 1061, the switching tube 1063 of second switch pipe 1062 and the 3rd are the upper bridge arm of inverter 106
Switching tube, the 4th switching tube 1064, the 5th switching tube 1065 and the 6th switching tube 1066 are switched for the lower bridge arm of inverter 106
Pipe；First switch pipe 1061, second switch pipe 1062, the 3rd switching tube 1063, the 4th switching tube 1064, the 5th switching tube 1065
And the 6th switching tube 1066 can simultaneously using triode, metal-oxide-semiconductor, IGBT or other possess the semiconductor device of switching characteristic
Part, and preferably it is in embodiments of the present invention IGBT（As shown in Figure 2）, the grid of IGBT, collector and emitter are respectively
The control end of switching tube, input and output end.
In an alternative embodiment of the invention, as shown in figure 3, inverter 106 can also be SPM（IPM,
Intelligent Power Module）, the high voltage end P and earth terminal N of SPM are respectively as inverter 106
Positive input terminal and negative input end, end W1 points of U phase electricity outputs end U1, V phase electricity output end V1 and W phase electricity output of SPM
Wei not the U phase output terminals of inverter 106, V phase output terminals and W phase output terminals, and the upper bridge arm switching tube in SPM
It is connected with control unit 200 with lower bridge arm switching tube.
The above-mentioned electric machine control system 100 based on Z source converters is described further below in conjunction with operation principle：
When convertible frequency air-conditioner is not actuated, electric machine control system 100 is also not actuated, now, the relay in soft starting circuit 101
The normally opened contact 4 of device RL is not closed；When convertible frequency air-conditioner starts, electric machine control system 100 also starts therewith, and civil power is first passed around
Positive temperature coefficient resistor PTC and rectifier bridge BD is to the first inductance L1 in the first storage capacitor C and Z source converter 103, the first storage
Energy electric capacity C1, the second storage capacitor C2 and the second inductance L2 are charged with suppressing surge produced during startup, Ran Houyou
The normally opened contact 4 of control relay RL after Preset Time is postponed of control unit 107 is closed, with to positive temperature coefficient resistor PTC
Short circuit is realized, then convertible frequency air-conditioner enters normal operating conditions, and motor 200 runs well.It follows that being become to Z sources by above-mentioned
Parallel operation 103 realizes soft start, can reduce the transient state excessively stream of rectification circuit 102, prevents device failure, it is to avoid because of voltage and current
It is excessive and cause Z source converters safely and reliably to work, and then improve the reliability and security of convertible frequency air-conditioner.
When above-mentioned electric machine control system 100 works, by the voltage after the rectification of rectification circuit 102 by Z source converters
103rd, the Z source converters that switching tube 104 and filter circuit 105 are constituted derive circuit（As shown in Figure 4）Sent after carrying out multiplication of voltage treatment
To inverter 106, in the process, it is assumed that the first inductance L1 is identical with the inductance value of the second inductance L2 and is
Lx, the first storage capacitor C1 is identical with the capacitance of the second storage capacitor C2 and is Cx, i.e. L1=L2=Lx, C1=C2=Cx, then
The voltage U of the first storage capacitor C1C1With the voltage U of the second storage capacitor C2C2It is equal, UC1=UC2=UCx, the electricity of the first inductance L1
Pressure UL1With the voltage U of the second inductance L2L2It is equal, UL1=UL2=ULx.When switching tube 104 is turned on, diode D1 is reverse-biased, then rectification
The voltage of the output of circuit 102 cannot deliver to rear class by diode D1, and the power supply of successive load is supplied by the first storage capacitor C1
There is provided with the second storage capacitor C2, the output current of filter circuit 105 can reduce, it is assumed that the first storage capacitor C1 and the second energy storage
The current reference direction of electric capacity C2 is upward（I.e. from the negative pole of electric capacity toward positive extreme direction）, then：
ULx=UCx（1）
The voltage U of diode D1 negative electrodesd=2UCx, the voltage U between the input and output end of switching tube 104QIt is 0, electricity
Inducing current ILxEqual to capacitance current ICx, and the 3rd inductance L3 voltage UL3With the output voltage U that Z source converters derive circuitOIt
Be 0, i.e.,：
UL3=-UO（2）
When switching tube 104 is turned off, diode D1 forward conductions, the first inductance L1 and the second inductance L2 assists diode D1
Input power power for successive load, the output current of filter circuit 105 can increase, due to the output electricity of diode D1 negative electrodes
Pressure UdEqual to the input voltage Ui of its anode, then now the voltage of the first inductance L1 and the second inductance L2 by Ui and UCxAccording to the following formula
It is determined that：
ULx=Ui-UCx（3）
And the voltage U of the 3rd inductance L3L3By UCx、ULxAnd UODetermine according to the following formula：
UL3=UCx- ULx- UO（4）
According to above-mentioned relation formula（3）With（4）, can obtain relationship below：
UL3=2UCx- Ui-UO（5）
Assuming that the switch periods of switching tube 104 are T, dutycycle is D, then the ON time of switching tube 104 is DT, during shut-off
Between be (1-D) T.From stable state inductive magnetic flux conservation, the first inductance L1, the both end voltage of the second inductance L2 and the 3rd inductance L3
Average value be 0, so during the whole switch periods of switching tube 104, according to relational expression（1）With（3）, ULxAverage valueIt is shown below：
By above formula（6）Can obtain：
In addition, according to relational expression（2）With（5）, the voltage U of the 3rd inductance L3L3Average valueIt is shown below：
By above formula（8）Can obtain：
Therefore, from relational expression（7）With（9）U can be obtainedO=UCx, then by Z source converters 103, switching tube 104 and filter circuit
105 constitute Z source converters derive circuits sensitizing factor beAnd from relational expression（9）Understand, switching tube 104 is accounted for
Sky is necessarily less than 0.5 than D, cannot otherwise realize the purpose of boosting, so Z source converters derive circuit and can break through tradition
The limitation of BOOST circuit topologies, can export DC voltage higher, D in the case where the dutycycle of switching tube 104 is less than 0.5
The current inner loop in double -loop control is caused less than 0.5 without slope compensation, and switching tube 104 turn-off time more than conducting when
Between, be conducive to the radiating of switching tube 104.
Additionally, the filter circuit 105 of the 3rd inductance L3 and the second electrochemical capacitor C3 compositions can derive electricity to Z source converters
The output voltage on road plays a part of filtering process.
In sum, the embodiment of the present invention includes soft starting circuit, rectification circuit, Z source converters, switch by using
The electric machine control system based on Z source converters of pipe, filter circuit and inverter, is being opened convertible frequency air-conditioner by soft starting circuit
Produced surge is suppressed to prevent the rectification circuit and Z source converters from causing power switch to trip because of temporary over-current when dynamic
With device overcurrent damage, it is ensured that the job security of system.
Furthermore, the Z source converters being made up of Z source converters, switching tube and filter circuit derive circuit and ensure switching tube
Conducting dutycycle can improve boost capability when being less than 0.5, and the deadline of switching tube is long, be conducive to radiating, while passing through
Inverter AC motor is operated, and realizes wide scope Regulation Control and power to Z source converters by control unit control inverter
Factor correcting is controlled, so as to allow the upper and lower bridge arm switching tube of inverter straight-through phenomenon occur, improves the work peace of inverter
Quan Xing, eliminates the influence of the setting of Dead Time to the output current harmonics of inverter, and reduce the torque ripple of motor
With the noise for reducing motor.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, it is all in essence of the invention
Any modification, equivalent and improvement made within god and principle etc., should be included within the scope of the present invention.
Claims (9)
1. a kind of electric machine control system based on Z source converters, and motor connection, including control unit, described control unit with
The indoor set connection of convertible frequency air-conditioner；Characterized in that, the electric machine control system also includes：
Soft starting circuit, rectification circuit, Z source converters, switching tube, filter circuit and inverter；
The input and output end of the soft starting circuit connect the zero line of power network and the positive input of the rectification circuit respectively
End, the first control end of the soft starting circuit and the second control end connection described control unit, the rectification circuit it is negative defeated
Enter the zero line side of the end connection power network, the positive output end of the rectification circuit connects the positive input terminal of the Z source converters, institute
The negative output terminal for stating rectification circuit is connected with the negative input end of the Z source converters, and the positive output end of the Z source converters is simultaneously
The input of the switching tube and the input of the filter circuit are connected, the positive output end connection of the filter circuit is described inverse
Become the positive input terminal of device, the negative output terminal of the Z source converters connects the output end of the switching tube, the filter circuit simultaneously
Negative output terminal and the inverter negative input end, multiple control ends of the control end of the switching tube and the inverter
It is connected with described control unit, the U phase output terminals of the inverter, V phase output terminals and W phase output terminals connect the motor,
The inverter includes bridge arm switching tube and lower bridge arm switching tube；
The soft starting circuit includes relay and positive temperature coefficient resistor, the first control contact of the relay and the second control
Contact processed is respectively first control end and the second control end of the soft starting circuit, the switch contact of the relay with it is described
The common contact of the first end of positive temperature coefficient resistor as the soft starting circuit input, the normally opened contact of the relay
With the common contact at the second end of the positive temperature coefficient resistor as the soft starting circuit output end.
2. electric machine control system as claimed in claim 1, it is characterised in that the rectification circuit includes rectifier bridge and the first electricity
Solution electric capacity C, the positive input terminal and negative input end of the rectifier bridge are respectively the positive input terminal and negative input end of the rectification circuit,
The common contact of the output end of the rectifier bridge and the positive pole of the first electrochemical capacitor C as the rectification circuit positive output
End, the common contact of the earth terminal of the rectifier bridge and the negative pole of the first electrochemical capacitor C is used as the negative defeated of the rectification circuit
Go out end.
3. electric machine control system as claimed in claim 1, it is characterised in that the Z source converters include：
Diode D1, the first inductance L1, the first storage capacitor C1, the second storage capacitor C2 and the second inductance L2；
The anode of the diode D1 is the positive input terminal of the Z source converters, the negative electrode of the diode D1 and described first
The positive pole of storage capacitor C1 is connected to the first end of the first inductance L1, second end and described second of the first inductance L1 altogether
The common contact of the positive pole of storage capacitor C4 as the Z source converters positive output end, the negative pole of the second storage capacitor C2
With the common contact of the first end of the second inductance L2 as the Z source converters negative input end, first storage capacitor
The common contact at the negative pole of C1 and second end of the second inductance L2 as the Z source converters negative output terminal.
4. electric machine control system as claimed in claim 1, it is characterised in that the switching tube is IGBT or metal-oxide-semiconductor.
5. electric machine control system as claimed in claim 4, it is characterised in that the switching tube is IGBT, the grid of the IGBT
Pole, collector and emitter are respectively control end, input and the output end of the switching tube.
6. electric machine control system as claimed in claim 1, it is characterised in that the filter circuit includes the 3rd inductance L3 and the
The first end of two electrochemical capacitor C3, the 3rd inductance L3 is the input of the filter circuit, the of the 3rd inductance L3
The common contact of two ends and the positive pole of the second electrochemical capacitor C3 as the filter circuit positive output end, second electrolysis
The negative pole of electric capacity C3 is the negative output terminal of the filter circuit.
7. electric machine control system as claimed in claim 1, it is characterised in that the inverter includes：
First switch pipe, second switch pipe, the 3rd switching tube, the 4th switching tube, the 5th switching tube and the 6th switching tube；
The input of the input of the first switch pipe and the second switch pipe and the input of the 3rd switching tube
Altogether contact as the inverter positive input terminal, the input of the output end of the first switch pipe and the 4th switching tube
Common contact as the inverter U phase output terminals, the output end of the second switch pipe is defeated with the 5th switching tube
Enter the common contact at end as the V phase output terminals of the inverter, output end and the 6th switching tube of the 3rd switching tube
Input common contact as the inverter W phase output terminals, the output end of the 4th switching tube opens with the described 5th
Close pipe output end and the 6th switching tube output end common contact as the inverter negative input end, described first
The control end of switching tube, the control end of the second switch pipe, the control end of the 3rd switching tube, the 4th switching tube
The control end of control end, the control end of the 5th switching tube and the 6th switching tube is respectively the first of the inverter
Control end, the second control end, the 3rd control end, the 4th control end, the 5th control end and the 6th control end, and it is single with the control
Unit's connection；
Wherein, the first switch pipe, the second switch pipe and the upper bridge arm that the 3rd switching tube is the inverter are opened
Guan Guan, the 4th switching tube, the 5th switching tube and the lower bridge arm switching tube that the 6th switching tube is the inverter.
8. electric machine control system as claimed in claim 1, it is characterised in that the inverter is SPM, described
The high voltage end and earth terminal of SPM respectively as the inverter positive input terminal and negative input end, the intelligence
The U phase electricity outputs end of power model, V phase electricity output ends and W phase electricity outputs end are respectively the U phase output terminals of the inverter, V phases
Output end and W phase output terminals, and the upper bridge arm switching tube of the SPM and lower bridge arm switching tube with the control
Unit is connected.
9. a kind of convertible frequency air-conditioner, including indoor set and motor, it is characterised in that the convertible frequency air-conditioner also includes such as claim 1
The electric machine control system based on Z source converters described in 8 any one.
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105162339B (en) * | 2015-07-24 | 2017-11-03 | 哈尔滨工业大学 | Z source matrixes rectifier and its vector modulation method |
| CN105743370B (en) * | 2016-03-29 | 2019-05-03 | 中国科学院电工研究所 | A kind of superconducting energy storage current transformer and its modulation system |
| CN106856369A (en) * | 2017-01-13 | 2017-06-16 | 西京学院 | A kind of quasi- Z source converters of capacitance network type |
| CN107634669B (en) * | 2017-11-15 | 2023-09-19 | 福建万润新能源科技有限公司 | Power supply circuit of permanent magnet synchronous motor without position sensor and control method thereof |
| CN107748301A (en) * | 2017-11-24 | 2018-03-02 | 南方电网科学研究院有限责任公司 | A kind of high voltage direct current filter capacitor noise testing loaded circuit |
| GB201809400D0 (en) * | 2018-06-07 | 2018-07-25 | Trw Ltd | Control for electric power steering |
| WO2020107956A1 (en) * | 2018-11-30 | 2020-06-04 | 广东美的制冷设备有限公司 | Operation control method and system, and compressor, air conditioner and readable storage medium |
| CN109617413B (en) * | 2019-01-30 | 2024-03-01 | 上海艾为电子技术股份有限公司 | Boost chip and mode switching circuit thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755859Y (en) * | 2004-12-31 | 2006-02-01 | 海尔集团公司 | Power factor compensator of frequency-variable air conditioner |
| CN101110543A (en) * | 2006-07-17 | 2008-01-23 | 上海日立电器有限公司 | Compressor and its control method |
| CN203554355U (en) * | 2013-10-16 | 2014-04-16 | 广东美的制冷设备有限公司 | A variable frequency air-conditioner and a motor control system based on a Z source converter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7872441B2 (en) * | 2007-06-29 | 2011-01-18 | GM Global Technology Operations LLC | Systems and methods for operating Z-source inverter inductors in a continuous current mode |
-
2013
- 2013-10-16 CN CN201310485032.0A patent/CN104113262B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2755859Y (en) * | 2004-12-31 | 2006-02-01 | 海尔集团公司 | Power factor compensator of frequency-variable air conditioner |
| CN101110543A (en) * | 2006-07-17 | 2008-01-23 | 上海日立电器有限公司 | Compressor and its control method |
| CN203554355U (en) * | 2013-10-16 | 2014-04-16 | 广东美的制冷设备有限公司 | A variable frequency air-conditioner and a motor control system based on a Z source converter |
Non-Patent Citations (1)
| Title |
|---|
| 基于Z源变换器的直流无刷电机驱动系统研究;袁啸林;《中国优秀硕士学位论文全文数据库（工程科技Ⅱ辑）》;20130615(第6期);第三章、第四章 * |
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