CN1551483A - Motor drive device and air conditioning device - Google Patents
Motor drive device and air conditioning device Download PDFInfo
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- CN1551483A CN1551483A CNA2004100420818A CN200410042081A CN1551483A CN 1551483 A CN1551483 A CN 1551483A CN A2004100420818 A CNA2004100420818 A CN A2004100420818A CN 200410042081 A CN200410042081 A CN 200410042081A CN 1551483 A CN1551483 A CN 1551483A
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- switch element
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- stator winding
- voltage
- revolution
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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
- H02P6/085—Arrangements for controlling the speed or torque of a single motor in a bridge configuration
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
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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
- H02P6/06—Arrangements for speed regulation of a single motor wherein the motor speed is measured and compared with a given physical value so as to adjust the motor speed
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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
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Provided is a motor-driving device and air-conditioning equipment, wherein the production of noise due to an inverter circuit and leakage current can be reduced. The motor driving device comprises an inverter circuit 60, that has a plurality of switching elements and is connected with the stator winding in each phase of a brushless DC motor 16A. The phase voltage applied to the stator winding in each phase is controlled during conducting period, during which the stator winding in each phase is energized, and the number of revolutions of a rotor 27 is thereby controlled to the targeted number of revolutions. The motor-driving device further comprises an inverter circuit control unit 41b that, during conducting periods for stator windings 26u, 26v, and 26w in the respective phases, keeps the corresponding switching elements on; a number-of-revolutions detecting unit 41d that detects the number of revolutions of the rotor 27; a comparison unit 41e, that compares the number of revolutions of the rotor 27 with the target number of revolutions; and a voltage-raising/lowering inverter unit 54 that regulates the direct-current voltage to be applied to the inverter circuit 60, based on the result of the comparison by the comparing unit 41e.
Description
Technical field
The present invention relates to have the motor driver and the aircondition of inverter circuit.
Background technology
Usually, known comprise with alternating electromotive force be transformed into direct current power rectification circuit, have a plurality of switch elements and be connected to inverter circuit on each phase stator winding of brushless DC motor, the phase voltage that applies on each phase stator winding of inner control during the energising of in each phase stator winding, switching on, the revolution of rotor is controlled to be the motor driver (for example, with reference to patent documentation 1) of target revolution.
In this motor driver, during the energising of each stator winding in, the switch element of inverter circuit correspondence is controlled with the drive signal of pulse-width modulation, making the phase voltage that is applied on the stator winding is pulse type.
In addition, usually, known off-premises station with compressor and outdoor heat converter and the aircondition of comprising with indoor set of indoor heat converter.As this compressor, have to comprise the brushless DC motor that drives by above-mentioned motor driver.
[patent documentation 1] spy opens 2001-37278 communique (Japan)
But, in above-mentioned motor driver,, have the big problem of noise level of inverter circuit generation owing in the switch element of inverter circuit is during switching on, control with the drive signal of pulse-width modulation.
Invade other devices that are connected to this power supply by power supply in order to prevent this noise, two capacitors that are connected in series between the input terminal of rectification circuit are arranged, and with the game method of these two capacitor groundings, if but the noise level that inverter circuit produces is big, exist by the big problem of leakage current of capacitor leakage to ground.
And above-mentioned compressor generally need be with compressor container ground connection on Security Countermeasures.Usually, flow into the compressor container from stator winding by cold-producing medium in the compressor container and oil, be leaked to ground as leakage current from the noise of inverter circuit.And if noise level increases, then leakage current also increases.Particularly this leakage current is more remarkable when having realized the Low ESR of stator winding.And if the switching frequency of the switch element of inverter circuit raises, then high-frequency noise increases, and leakage current can increase.
Summary of the invention
Therefore, consider above-mentioned situation, the object of the present invention is to provide and to reduce the noise that inverter circuit produces and the motor driver and the aircondition of leakage current.
Scheme 3 described inventions are characterised in that, in scheme 1 described motor driver, described voltage adjustment part also can comprise having step-down with switch element and the buck translation circuit with switch element of boosting, and controls described step-down and ends with switch element and described conducting of boosting with switch element and adjust described direct voltage.
Scheme 4 described inventions provide a kind of aircondition, comprise off-premises station with compressor and outdoor heat converter and indoor set with outdoor heat converter, described compressor comprises brushless DC motor, on each phase stator winding of this brushless DC motor, connect inverter circuit with a plurality of switch elements, the phase voltage that applies on described each the phase stator winding of inner control during the energising of in described each phase stator winding, switching on, the revolution of rotor is controlled to be the target revolution, it is characterized in that, this aircondition comprises: maintaining part, in during the energising of the stator winding of described each phase, the described switch element of correspondence is remained conducting state; And the voltage adjustment part, detect the revolution of described rotor, adjust the direct voltage that applies on the described inverter circuit, so that the revolution of described rotor is the target revolution.
Scheme 5 described inventions are characterised in that, in scheme 4 described airconditions, described voltage adjustment part also can comprise having step-down with the decompression converter circuit of switch element, controls described step-down and ends with the conducting of switch element and adjust described direct voltage.
Scheme 6 described inventions are characterised in that, in scheme 4 described airconditions, described voltage adjustment part also can comprise having step-down with switch element and the buck translation circuit with switch element of boosting, and controls described step-down and ends with switch element and described conducting of boosting with switch element and adjust described direct voltage.
According to the present invention, can reduce noise and leakage current that inverter circuit produces.
Description of drawings
Fig. 1 is the refrigerant loop figure of the aircondition of expression an embodiment of the present invention.
Fig. 2 is the circuit diagram of the compressor drive apparatus that adopts in the aircondition of expression.
Fig. 3 is the primary structure block diagram partly of the compressor drive apparatus of presentation graphs 2.
Fig. 4 is the sequential chart of expression to the phase voltage of the drive signal of inverter circuit and stator winding.
Embodiment
Below, with reference to accompanying drawing embodiments of the present invention are described.
As shown in Figure 1, aircondition 10 has off-premises station 11 and indoor set 12, and the outdoor refrigerant pipe arrangement 14 of off-premises station 11 is connected with 25 by connecting pipings 24 with the indoor refrigerant piping 15 of indoor set 12.
Off-premises station 11 is configured in outdoor.In outdoor refrigerant pipe arrangement 14, configuration compressor 16 is simultaneously at the suction side of this compressor 16 configuration accumulator 17, at the discharge side configuration cross valve 18 of compressor 16, in these cross valve 18 sides disposed chamber's outer heat-exchanger 19 and electrodynamic type expansion valve 22 successively.Compressor 16 is driven by brushless DC motor 16A.In outdoor heat converter 19, will be from outdoor fan 20 disposed adjacent of outdoor heat converter 19 to outdoor air-supply.This outdoor fan 20 is driven by outdoor fan motor 20A.
In aircondition 10, comprise being arranged on the outdoor control device 41 on the off-premises station 11 and being arranged on Indoor Control Device 42 on the indoor set 12.
In the not shown remote controller of indoor set 12 sides, can be set at cooling operation or heat one of them operation mode of running.
Connect this outdoor control device 41 and Indoor Control Device 42 by communication line.And outdoor control device 41 is indicated the revolution of indoor fan motor 23A by this communication line and is sent to Indoor Control Device 42.And Indoor Control Device 42 sends to outdoor control device 41 with the control information of the information of the operation mode information of indoor air-conditioning load information, setting, expression indoor fan 23A revolution etc.Outdoor control device 41 is controlled brushless DC motor 16A, outdoor fan motor 20A, cross valve 18 and electrodynamic type expansion valve 22 according to the control information that receives.
Under the situation that is set to the operation mode that carries out cooling operation, cross valve 18 is switched to the refrigeration side, and cold-producing medium is mobile as the solid line arrow.And, the cold-producing medium of discharging from compressor 16 by the running of compressor 16 arrives outdoor heat converter 19 through cross valve 18, in this outdoor heat converter 19, be condensed, after electrodynamic type expansion valve 22 decompression, evaporation in the indoor heat converter 21 of indoor set 12 and freezing to indoor.Flow into off-premises station 11 sides from the cold-producing medium of indoor heat converter 21, return compressor 16 through the cross valve 18 and the accumulator 17 of this off-premises station 11.
And under the situation that is set to the operation mode that heats running, cross valve 18 is switched to and heats side, and cold-producing medium is mobile as dotted arrow.And the cold-producing medium that the running by compressor 16 is discharged from compressor 16 arrives the indoor heat converter 21 of indoor sets 12 through cross valve 18, is condensed in this indoor heat converter 21 and heats indoor.The cold-producing medium that is condensed in indoor heat converter 21 is reduced pressure by the electrodynamic type expansion valve 22 of off-premises station 11, after the evaporation, returns compressor 16 through cross valve 18 and accumulator 17 in outdoor heat converter 19.
Fig. 2 is the circuit diagram of the compressor drive apparatus that adopts in the aircondition in the expression present embodiment.
Noise filter circuit 52 comprises capacitor 52a, 52b and co-mode coil 52c between the circuit that makes common-mode noise decay, and makes capacitor 52d, 52e between the circuit of mode standard noise attentuation and ground connection.
Between circuit and ground connection between capacitor 52d and circuit and ground connection capacitor 52e be connected in series.And, with the tie point ground connection of capacitor 52e between capacitor 52d and circuit and ground connection between circuit and ground connection.
Rectification circuit 53 is transformed to alternating electromotive force with direct current power.This rectification circuit 53 is diode to be carried out electric bridge connect the circuit that carries out full-wave rectification.
Buck-boost converter circuit 59 comprise step-down with switch element (for example, IGBT) 59a, boost with switch element that (for example, IGBT) 59b, the 1st prevents that reverse current diode 59c, reactor 59d and the 2nd from preventing reverse current diode 59e.
If specifically describe the annexation of the element of buck-boost converter circuit 59, then step-down is connected to an end of the output of rectification circuit 53 with the end (collector terminal) of switch element 59a.Step-down is connected to the 1st with the other end (emitter terminal) of switch element 59a and prevents the end (cathode terminal) of reverse current diode 59c and the end of reactor 59d.The other end of reactor 59d is connected to boost and prevents the end (anode terminal) of reverse current diode 59e with the end (collector terminal) and the 2nd of switch element 59b.The 2nd prevents that the other end (cathode terminal) of reverse current diode 59e is connected to an end of smmothing capacitor 55.The 1st prevents the other end (anode terminal) of reverse current diode 59c and the other end (emitter terminal) with switch element 59b of boosting is connected to the other end of output of rectification circuit 53 and the other end of smmothing capacitor 55.
In this buck-boost converter circuit 59, step-down prevents that with switch element 59a, the 1st reverse current diode 59c and reactor 59d have the function as decompression converter circuit, boosts to prevent that with switch element 59b, reactor 59d and the 2nd reverse current diode 59e has the function of boost converter circuit.
As shown in Figure 2, inverter circuit 60 comprises a plurality of (6) switch element that three-phase bridge connects (for example, IGBT) 60u, 60v, 60w, 60x, 60y, 60z.And in pairs, tie point separately is connected respectively to stator winding 26u, 26v, the 26w of the brushless DC motor 16A of Y-connection respectively for switch element 60u and 60x, switch element 60v and 60y, switch element 60w and 60z.
Then, phase voltage Vu, Vv, the Vw of three-phase is applied on stator winding 26u, 26v, the 26w of brushless DC motor 16A.Here, Vu represents the U phase voltage, and Vv represents the V phase voltage, and Vw represents the W phase voltage.
In the present embodiment, the inverter part 56 of motor driver 30 drives brushless DC motor 16A in 120 degree energising rectangular wave drive modes.Therefore, on stator winding 26u, the 26v of brushless DC motor 16A, 26w, apply phase voltage Vu, Vv, Vw in, have during the energising of 120 ° of electric angles and the no power of 60 ° of electric angles during.And, during this no power in, the rotation by rotor 27 produces induced voltage.
On the outlet side of inverter circuit 60, connect the end of voltage detecting line 43u, 43v, 43w.
As shown in Figure 3, outdoor control device 41 also comprises the 41c of rotor position detection portion, revolution test section 41d, comparing section 41e, the target revolution generating unit 41f of the other end that connects voltage detecting line 43u, 43v, 43w except above-mentioned buck-boost converter circuit control part 41a and inverter circuit control part 41b.
The voltage of the 41c of rotor position detection portion monitor voltage detection line 43u, 43v, 43w according to the middle induced voltage that produces during the no power of each voltage detecting line 43u, 43v, 43w, detects the position of rotor 27 (Fig. 2).
Target revolution generating unit 41f generates the target revolution of rotor 27 according to air-conditioning load (for example, indoor temperature etc.).
More detected revolution of comparing section 41e and target revolution send to buck-boost converter circuit control part 41a with this comparative result.Specifically, from the target revolution, deduct detected revolution and calculation deviation, this deviation is sent to buck-boost converter circuit control part 41a.
In buck-boost converter circuit control part 41a, be provided with step-down with switch element 59a and the not shown buck switch element driver circuit that boosts and drive with switch element 59b.
Buck-boost converter circuit control part 41a adjusts the direct voltage that applies on the input of inverter circuit 60, so that the revolution of rotor 27 reaches the target revolution.
That is, buck-boost converter circuit control part 41a controls buck-boost converter circuit 59 according to the comparative result of the comparing section 41e that receives.
If specifically describe, then buck-boost converter circuit control part 41a makes the control of the DC voltage rising that applies on the inverter circuit 60 when the deviation that receives from comparing section 41e is positive value.That is, buck-boost converter circuit control part 41a makes the DC voltage rising that applies on the inverter circuit 60, makes the control of the revolution rising of rotor 27.And buck-boost converter circuit control part 41a makes the control of the direct voltage decline that applies when the deviation that receives from comparing section 41e is the value of bearing.That is, buck-boost converter circuit control part 41a descends the direct voltage that applies on the inverter circuit 60, makes the control of the revolution decline of rotor 27.
Here, when the direct voltage that buck-boost converter circuit control part 41a applies carries out step-down, pulse-width signal is outputed to the gate terminal of step-down with switch element 59a on the input to buck-boost converter circuit 59, its conducting is ended switch.At this moment, buck-boost converter circuit control part 41a makes that to boost with switch element 59b be the control of cut-off state.
And the direct voltage that buck-boost converter circuit control part 41a applies on the input to buck-boost converter circuit 59 outputs to each gate terminal that boosts with switch element 59b with pulse-width signal when boosting, to its conducting by switching.At this moment, to make step-down be the control of conducting state with switch element 59a to buck-boost converter circuit control part 41a.
These buck inverter part 54, revolution test section 41d, comparing section 41e, target revolution generating unit 41f have the function as the voltage adjustment part of adjusting the direct voltage that applies on the inverter circuit 60.
More than, adjust the direct voltage that applies on the inverter circuit 60 by the buck-boost converter circuit 59 under the buck-boost converter circuit control part 41a control, so do not need to carry out switch control by inverter circuit as in the past, thereby adjust the size of the phase voltage that applies on stator winding 26u, 26v, the 26w.
In addition, as main noise source, only there is step-down to use two elements of switch element 59b with boosting, so can reduce noise with switch element 59a.
Below, the action based on the inverter part 56 of inverter circuit control part 41b is described.
Inverter circuit control part 41b is provided with the not shown switch element driver circuit that switch element 60u, 60v, 60w, 60x, 60y, 60z are driven.
Shown in the sequential chart of Fig. 4, inverter circuit control part 41b outputs to drive signal u1, v1, w1, u2, v2, w2 respectively each gate terminal of switch element 60u, 60v, 60w, 60x, 60y, 60z.
Drive signal u1, v1, w1, u2, v2, w2 periodically repeat the low level signal (hereinafter referred to as ' L level signal ') of 240 ° of the high level signal (hereinafter referred to as ' H level signal ') of 120 ° of electric angles and electric angles.
And, the H level signal that outputs to the drive signal v1 of switch element 60u, 60v, 60w postpones 120 ° of outputs than the H level signal of drive signal u1, output H level signal after the H level signal of drive signal w1 postpones 120 ° than the H level signal of drive signal u1.
In addition, the H level signal that outputs to the drive signal v2 of switch element 60x, 60y, 60z postpones 120 ° of outputs than the H level signal of drive signal u2, output H level signal after the H level signal of drive signal w2 postpones 120 ° than the H level signal of drive signal u2.
Then, the H level signal of the H level signal of drive signal u1 and drive signal u2 is staggered 60 ° of electric angles are exported.Equally, the H level signal of the H level signal of drive signal v1 and drive signal v2 is staggered 60 ° of electric angles are exported.And, the H level signal of the H level signal of drive signal w1 and the drive signal w2 60 ° of electric angles that stagger are exported.
Below, the action of switch element 60u, 60x is described.Here, owing to switch element 60v, 60w, 60y, 60z and switch element 60u, 60x similarly move, so omit the action of explanation switch element 60v, 60w, 60y, 60z.
Then, during phase voltage Vu repeats to become the energising of 120 ° of electric angles of positive voltage, during the no power of 60 ° of electric angles, become the energising of 120 ° of electric angles of negative voltage during, during the no power of 60 ° of electric angles.In addition, each phase voltage Vu, Vv, the Vw 120 ° of phase places that stagger mutually.
Like this, in inverter 56, set the size of phase voltage by the drive signal of pulse-width modulation in during switching on not resembling in the past, but during switching on, phase voltage is applied on stator winding 26u, 26v, the 26w continuously.That is, the inverter circuit control part 41b of inversion portion 56 during the energising of stator winding 26u, 26v, 26w in, inverter circuit 60 is controlled, so that corresponding switch element is a conducting state.
Thus, because the switch element that reduces inverter circuit 60 carries out the action that conducting ends, so can reduce the heating that this inverter circuit 60 causes.In addition, because the switch element that reduces inverter circuit 60 carries out the action that conducting ends, so can reduce the noise that inverter circuit 60 produces.
And, because in during switching on, to apply switch element 60u, 60v, the 60w of positive voltage on stator winding 26u, 26v, the 26w and switch element 60x, 60y, the 60z that has applied negative voltage on stator winding 26u, 26v, the 26w kept conducting state, so can reduce heating effectively, can reduce generating noise effectively.
In addition, owing to suppressed the noise that inverter circuit 60 produces, be leaked to the leakage current on ground and the leakage current minimizing that is leaked to ground by capacitor 52d, 52e between circuit and ground connection by compressor 16.Therefore, can realize the Low ESR of stator winding 26u, 26v, 26w.
And, in inverter circuit 60,,, can more effectively reduce leakage current so can suppress high-frequency noise owing to do not change in during switching on.
In addition, when the starting of compressor 16, low-voltage is applied on stator winding 26u, 26v, the 26w, rather than as in the past the high voltage of pulse type is applied on the stator winding.Therefore, can avoid being applied to the excessive insertion electric current that produces on the stator winding to the switch element of inverter circuit 60 because of voltage with pulse type.Thus, can realize protection with respect to the inverter circuit 60 that inserts electric current.
Have again, in buck-boost converter circuit 59, have as boosting of boost converter circuit function and prevent that with switch element 59b, reactor 59d and the 2nd reverse current diode 59e can have the function as the high harmonic inhibition circuit.And, when suppressing high order harmonic component, also can control with pulse-width signal with switch element 59b boosting.
More than, according to present embodiment, inverter circuit control part 41b during the energising of stator winding 26u, the 26v of each phase, 26w in, the switch element of the correspondence of inverter circuit 60 is kept conducting state, so can reduce noise and leakage current that inverter circuit 60 produces.
More than, according to above-mentioned execution mode the present invention has been described, but has the invention is not restricted to this.
For example, in the above-described embodiment, the situation that compressor drive apparatus 30 is applied to aircondition 10 has been described, but has been not limited thereto, for example, be applied to the situation of refrigerator, showcase, washing machine etc. in addition.
In addition, in the above-described embodiment, the situation of not using Hall element and coming the detection rotor position according to induced voltage has been described, but the position that also can use the direct detection rotor of Hall element.
In addition, in the above-described embodiment, illustrated that motor driver comprises the situation of buck-boost converter circuit, had step-down replaces this buck-boost converter circuit with the decompression converter circuit of switch element situation but also there is motor driver to comprise.And, under the situation that needs boost, also can voltage-multiplying circuit be set at the output of rectification circuit, boost in advance with this voltage-multiplying circuit, carry out step-down with decompression converter circuit and adjust the direct voltage that applies on the inverter circuit.
Claims (6)
1. motor driver, comprise the inverter circuit on the stator winding of each phase that has a plurality of switch elements and be connected to brushless DC motor, the phase voltage that applies on the stator winding of inner control to described each phase during the energising of in the stator winding of described each phase, switching on, the revolution of rotor is controlled to be the target revolution, it is characterized in that described motor driver comprises:
Maintaining part, during the energising of the stator winding of described each phase in, the described switch element of correspondence is remained conducting state; And
The revolution of described rotor is detected in the voltage adjustment part, adjusts the direct voltage that applies on the described inverter circuit, so that the revolution of described rotor is the target revolution.
2. motor driver as claimed in claim 1 is characterized in that:
Described voltage adjustment part comprises having step-down with the decompression converter circuit of switch element, controls described step-down and ends with the conducting of switch element and adjust described direct voltage.
3. motor driver as claimed in claim 1 is characterized in that:
Described voltage adjustment part comprises having step-down with switch element and the buck translation circuit with switch element of boosting, and controls described step-down and ends with switch element and described conducting of boosting with switch element and adjust described direct voltage.
4. aircondition, comprise off-premises station with compressor and outdoor heat converter and indoor set with outdoor heat converter, described compressor comprises brushless DC motor, on each phase stator winding of this brushless DC motor, connect the inverter circuit with a plurality of switch elements, the phase voltage that applies on described each the phase stator winding of inner control during the energising of switching in described each phase stator winding is controlled to be the target revolution with the revolution of rotor, it is characterized in that this aircondition comprises:
Maintaining part, during the energising of the stator winding of described each phase in, the described switch element of correspondence is remained conducting state; And
The revolution of described rotor is detected in the voltage adjustment part, adjusts the direct voltage that applies on the described inverter circuit, so that the revolution of described rotor is the target revolution.
5. aircondition as claimed in claim 4 is characterized in that:
Described voltage adjustment part comprises having step-down with the decompression converter circuit of switch element, controls described step-down and ends with the conducting of switch element and adjust described direct voltage.
6. aircondition as claimed in claim 4 is characterized in that:
Described voltage adjustment part comprises having step-down with switch element and the buck translation circuit with switch element of boosting, and controls described step-down and ends with switch element and described conducting of boosting with switch element and adjust described direct voltage.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003131311 | 2003-05-09 | ||
| JP131311/2003 | 2003-05-09 | ||
| JP131311/03 | 2003-05-09 | ||
| JP102378/04 | 2004-03-31 | ||
| JP2004102378A JP2004364492A (en) | 2003-05-09 | 2004-03-31 | Motor-driving device and air-conditioning equipment |
| JP102378/2004 | 2004-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1551483A true CN1551483A (en) | 2004-12-01 |
| CN1303751C CN1303751C (en) | 2007-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100420818A Expired - Fee Related CN1303751C (en) | 2003-05-09 | 2004-04-30 | Motor drive device and air conditioning device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2004364492A (en) |
| KR (1) | KR100610729B1 (en) |
| CN (1) | CN1303751C (en) |
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| CN101675303B (en) * | 2006-02-16 | 2012-06-27 | Lg电子株式会社 | Air conditioner |
| CN106469991A (en) * | 2015-08-10 | 2017-03-01 | Lg电子株式会社 | Power conversion device and the air conditioner including it |
| CN106487247A (en) * | 2015-08-27 | 2017-03-08 | Lg电子株式会社 | Power conversion device and the air conditioner including it |
| CN112640294A (en) * | 2018-08-28 | 2021-04-09 | 株式会社电装 | Control device |
| CN112955706A (en) * | 2018-10-30 | 2021-06-11 | 夏普株式会社 | Refrigerator with a door |
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| JP5443999B2 (en) * | 2007-10-31 | 2014-03-19 | ジョンソン コントロールズ テクノロジー カンパニー | Common mode and differential mode filters for variable speed drives |
| KR101036163B1 (en) * | 2009-09-03 | 2011-05-23 | 성균관대학교산학협력단 | Three-phase motor driving apparatus |
| JP2013070555A (en) * | 2011-09-26 | 2013-04-18 | Panasonic Corp | Motor drive |
| KR102350484B1 (en) | 2014-12-01 | 2022-01-17 | 삼성전자주식회사 | Moter driving apparatus, airconditioner having the same and control method thereof |
| US10148212B2 (en) * | 2017-01-06 | 2018-12-04 | Thermo King Corporation | DC to DC converter sourcing variable DC link voltage |
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|---|---|---|---|---|
| JPS57177292A (en) * | 1981-04-22 | 1982-10-30 | Hitachi Ltd | Dc brushless motor |
| CN1070657C (en) * | 1995-10-06 | 2001-09-05 | 株式会社日立制作所 | Motor controller |
| US6075328A (en) * | 1996-10-18 | 2000-06-13 | Hitachi, Ltd. | PWM/PAM control mode switching type motor control apparatus, and motor drive and air-conditioner using the same |
| JPH1169882A (en) * | 1997-08-27 | 1999-03-09 | Mitsubishi Electric Corp | Motor driver for air conditioner |
| JPH11113276A (en) | 1997-10-02 | 1999-04-23 | Nippon Electric Ind Co Ltd | Driving method of sr motor |
| JP2001037278A (en) | 1999-07-21 | 2001-02-09 | Japan Servo Co Ltd | Driving circuit for brushless cd motor |
| JP2002112570A (en) * | 2000-09-29 | 2002-04-12 | Sanyo Denki Co Ltd | Drive for brushless fan motor and control method therefor |
| JP2002142484A (en) * | 2000-11-06 | 2002-05-17 | Toshiba Corp | Driver of water pump |
| JP2003003990A (en) | 2001-06-25 | 2003-01-08 | Minebea Co Ltd | Speed controller for brushless direct current fan motor |
-
2004
- 2004-03-31 JP JP2004102378A patent/JP2004364492A/en active Pending
- 2004-04-30 CN CNB2004100420818A patent/CN1303751C/en not_active Expired - Fee Related
- 2004-05-06 KR KR1020040031577A patent/KR100610729B1/en not_active IP Right Cessation
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101675303B (en) * | 2006-02-16 | 2012-06-27 | Lg电子株式会社 | Air conditioner |
| CN106469991A (en) * | 2015-08-10 | 2017-03-01 | Lg电子株式会社 | Power conversion device and the air conditioner including it |
| CN106469991B (en) * | 2015-08-10 | 2018-11-20 | Lg电子株式会社 | Power conversion device and air conditioner including it |
| US10267526B2 (en) | 2015-08-10 | 2019-04-23 | Lg Electronics Inc. | Power conversion apparatus and air conditioner including the same |
| CN106487247A (en) * | 2015-08-27 | 2017-03-08 | Lg电子株式会社 | Power conversion device and the air conditioner including it |
| CN106487247B (en) * | 2015-08-27 | 2019-04-09 | Lg电子株式会社 | Power conversion device and air conditioner including it |
| CN112640294A (en) * | 2018-08-28 | 2021-04-09 | 株式会社电装 | Control device |
| CN112640294B (en) * | 2018-08-28 | 2023-08-11 | 株式会社电装 | Control device |
| CN112955706A (en) * | 2018-10-30 | 2021-06-11 | 夏普株式会社 | Refrigerator with a door |
| CN112955706B (en) * | 2018-10-30 | 2023-05-02 | 夏普株式会社 | Refrigerator with a refrigerator body |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100610729B1 (en) | 2006-08-09 |
| KR20040096766A (en) | 2004-11-17 |
| CN1303751C (en) | 2007-03-07 |
| JP2004364492A (en) | 2004-12-24 |
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