WO2007102423A1 - 負荷駆動装置及び空気調和機の室外機並びに負荷の駆動方法 - Google Patents
負荷駆動装置及び空気調和機の室外機並びに負荷の駆動方法 Download PDFInfo
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- WO2007102423A1 WO2007102423A1 PCT/JP2007/054022 JP2007054022W WO2007102423A1 WO 2007102423 A1 WO2007102423 A1 WO 2007102423A1 JP 2007054022 W JP2007054022 W JP 2007054022W WO 2007102423 A1 WO2007102423 A1 WO 2007102423A1
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- power
- control circuit
- load
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- circuit
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Classifications
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/025—Motor control arrangements
-
- 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
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
- H02P27/06—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using dc to ac converters or inverters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/07—Details of compressors or related parts
- F25B2400/075—Details of compressors or related parts with parallel compressors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/11—Fan speed control
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Definitions
- the present invention relates to a load driving device, an air conditioner outdoor unit, and a load driving method.
- the present invention relates to a technique for driving a load, and can be applied to a technique for driving a compressor of an outdoor unit of an air conditioner, for example.
- Patent Document 1 Japanese Patent Application Laid-Open No. 11 211253
- Patent Document 2 Japanese Patent Laid-Open No. 11-311436
- Patent Document 3 Japanese Patent Laid-Open No. 2000-205627
- Patent Document 4 Japanese Patent Laid-Open No. 2000-333365
- Patent Document 5 Japanese Unexamined Patent Publication No. 2000-346425
- FIG. 6 is a circuit diagram showing a technique for driving the compressor.
- Compressors 308 and 309 and fan 310 are driven by motors 321, 322 and 323, respectively. In Fig. 6, such driving is indicated by a broken line.
- R-phase, S-phase, and T-phase power lines are connected to the three-phase power source 41, and a power switch 301 is interposed between these three power lines.
- the power switch 301 has an input side connected to the three-phase power source 41 and an output side.
- the motor 321 is connected to the output side of the power switch 301 via the control switch 302.
- the motor 322 is connected to the output side of the power switch 301 via a compressor driver 31a.
- the compressor driver 3 la has an inverter circuit including a diode bridge 312 and a switching circuit 314. It also has a filter 313 interposed between them. Daio The DC voltage obtained by the bridge 312 (with some! / And further by the filter 313) is supplied to the switching circuit 314. The switching circuit 314 switches the DC voltage and supplies it to the motor 322.
- the compressor driver 31a is generally called an inverter, but here, it will be described as a driver in order to distinguish it from the above-mentioned inverter circuit, which is more narrowly defined.
- the fan driver 31b has a switching circuit 306 that switches the DC voltage and supplies it to the motor 323.
- the compressors 308 and 309 compress the refrigerant.
- An air conditioner that performs air conditioning by using the refrigerant includes an indoor unit 5. Fan 310 cools these compressors.
- the three-phase power supply 41 is further connected to a power supply line at a neutral point N, and is connected to the compressor driver 31a together with the R-phase, S-phase, and T-phase power supply lines. It is desirable to provide a noise filter 33 between the output side of the power switch 301 and the compressor driver 31a to avoid the influence of noise on the inverter circuit.
- the R-phase, S-phase, and T-phase power lines are connected to the compressor driver 3 la as the power line group L1, and the R-phase and neutral point N power lines are connected as the power line group L2.
- the power input 311 is connected to the power line group L2 and receives the operating power of the compressor driver 31a.
- the power supply line group L3 is indirectly connected to the power supply line group L2 via the compressor driver 31a, and supplies the operating power of the fan driver 31b to the fan driver 31b.
- R-phase and T-phase power lines are also connected to the control board 307 on the output side of the power switch 301, and a power line at the neutral point N is also connected, and operating power is supplied from the three-phase power supply 41.
- the control board 307 generates switching control commands CNTL1 and CNTL2, which control switching of the switching circuits 314 and 306, respectively.
- the switching control command CNTL2 is given to the fan driver 31b together with the switching control command CNTL1 and via the compressor driver 31a, it can be seen that the switching control command CNTL2 is given to the fan driver 31b from the compressor driver 31a. It can also be seen that it is given from the control board 307 to the compressor driver 31a. Alternatively, the switching control command CNTL2 may be given directly to the fan driver 31b without going through the compressor driver 31a.
- the compressors 308 and 309 detect pressure abnormality of the refrigerant to be compressed, the compressors 308 and 309 give pressure abnormality information S HPl and SHP 2 to the control board 307. These signals may take the form of signals, but are generally recognized by the control board 307 as switch conduction Z non-conduction.
- the control board 307 generates and outputs a pressure abnormality signal HPS based on the pressure abnormality information SHP1 and SHP2. Specifically, when at least one of the pressure abnormality information SHP1 and SHP2 indicates a pressure abnormality, the output pressure abnormality signal HPS is activated.
- the pressure abnormality signal HPS controls conduction Z non-conduction of the control switches 302 and 303.
- the lever control is also indicated by a broken line. Since the pressure abnormality signal HPS is normally inactive, the control switches 302 and 303 are conducting.
- FIG. 7 is a flowchart showing the operation of reducing standby power, and mainly shows the operation of the control board 307.
- a block connected to a block indicating a step by a broken line indicates a component that is controlled by the step or that stops the supply of power Z.
- step S11 before the operation of the control board 307, the power switch 301 is turned on to turn on the power. As a result, operating power is supplied to the control board 307, the compressor driver 31a, and the motor 321. Also, operating power is supplied to the fan driver 31b via the diode bridge 312 and the filter 313.
- step S12 communication is performed between the control board 307 and the indoor unit 5 (the white arrow in FIG. 6), and it is determined whether or not the indoor unit 5 is being operated in step S12. . If the indoor unit 5 is not operated, the determination in step S12 is repeated by the route R1. When the operation of the indoor unit 5 is performed, the process proceeds to step S13 along the route R2, and the operation of the compressor driver 31a and the fan driver 31b is commanded. Specifically, control commands CNTL1 and CNTL2 are also given to the compressor driver 3 la and the fan driver 3 lb, respectively, and specific instructions for the operation of the compressor driver 3 la and the fan driver 3 lb are given.
- step S14 it is determined whether or not the indoor unit 5 has stopped. This can also be determined by the control board 307 through communication between the control board 307 and the indoor unit 5. If it is determined that the indoor unit 5 has stopped, the process proceeds to step S15. From control board 307, control commands CNTL1 and CNTL2 command stop operation to compressor driver 3 la and fan driver 3 lb, respectively. As a result, when the indoor unit 5 is stopped, the operation of the compressor 309 and the fan 310 is stopped, and standby power is reduced.
- step S16 determines whether the power supply should be shut off.
- step S17 the power supply is shut off (power switch 301 is not conducting), and it is determined that the power supply should be shut off.
- steps S12 to S15 are repeatedly executed.
- step S12 Even if the operation of the compressor 309 and the fan 310 is stopped when the indoor unit 5 is stopped while being pressed, if the operation of the indoor unit 5 is confirmed in step S12, the operation is stopped. Need to restart at step S13. Therefore, it is desirable to omit step S16 in the technique illustrated in FIGS. 6 and 7 and to simply cut off the power supply to the compressor driver 31a and the fan driver 31b in step S17.
- the present invention has been made in view of the above trade-off, and an object thereof is to save power of the second control circuit when the second control circuit drives a load under the control of the first control circuit.
- a first aspect of the load drive device includes a power switch (301) having an input side connected to a power source (41) and an output side, and connected to the output side of the power switch.
- the first control switch (304, 305) that is non-conductive Z and the conduction of both the power switch and the first control switch are supplied with electric power, and the first control circuit from the first control circuit
- a second aspect of the load driving device is the first aspect, wherein the first aspect
- the two control circuit (3 la) includes inverter circuits (312, 313, 314) that generate electric power to be supplied to the load (322, 309) from electric power supplied from the power source (41).
- a second control switch that is inserted between the power switch (301) and the inverter circuit (312, 313, 314) and that conducts according to normal Z abnormality of the load (322, 309). (30 3) is further provided.
- a third aspect of the load driving device is the first aspect, in which the second control circuit (3 la) is configured to convert the load from electric power supplied from the power source (41).
- the first control switch includes a switch (305) that cuts off supply Z of electric power to the inverter control circuit.
- the first control switch includes a switch (304) that performs Z cutoff of power supply to the inverter circuit (312, 313, 314).
- a fourth aspect of the load driving device is the second aspect or the third aspect thereof, wherein the load is supplied with electric power from the inverter circuit (312, 313, 314).
- the first control circuit (307) generates a second switching command (HPS) for making the second control switch non-conductive when a pressure abnormality of the first compressor occurs.
- HPS second switching command
- a fifth aspect of the load driving apparatus is the fourth aspect thereof, wherein the inverter circuit (312, 313, 314) includes a diode bridge (312) and the diode bridge. Includes a first switching circuit (314) that switches the DC voltage output from and outputs the DC voltage to the first motor (322). And a second switching circuit (306) that switches the DC voltage and outputs the second voltage to the second motor.
- the operating power is supplied from the second control circuit, and the first control circuit or the second control circuit is provided.
- An outdoor unit of an air conditioner according to the present invention includes a fourth aspect or a fifth aspect of the load driving device according to the present invention, the first motor (322), and the first compressor (309).
- said A third motor (321) connected to the output side of the power switch (301) and supplied with operating power by conduction of the power switch, and a second compressor driven by the third motor and compressing the refrigerant (308).
- a first aspect of the load driving method includes (a) a step of supplying operating power to the first control circuit (307) (Sl la), and (b) the step (a). (Sl lb) that starts supplying power to the second control circuit (31a) that drives the load (322, 309) after execution of (c), and (c) after execution of step (b), (S222) and (d) after the execution of step (b), the step of cutting off the supply of power to the second control circuit under the condition that (S220, S221, S223) is satisfied.
- a second aspect of the load driving method is the first aspect thereof, wherein the second control circuit (31a) is configured to perform the operation under the first control command (CNTL1).
- Inverter circuits (312, 313, 314) for generating electric power to be supplied to the loads (322, 309) are provided.
- the load includes a motor (322) to which electric power is supplied from the inverter circuit (312, 313, 314), and a compressor (309) that is driven by the first motor and compresses the refrigerant.
- the indoor unit (5) of the air conditioner that performs air conditioning using the refrigerant is not operating (S220), and the execution force of the step (b) is also the time until the first time elapses. If the air conditioning is selected to have a predetermined setting throughout the period (S221), it is determined that the predetermined condition is satisfied.
- a third aspect of the load driving method according to the present invention is the second aspect thereof, and the predetermined setting includes that the air conditioning is a blowing operation.
- a fourth aspect of the load driving method according to the present invention is the second aspect or the third aspect, wherein the predetermined temperature is set such that the environmental temperature to be air-conditioned is the first. 1 Including cooling operation under conditions below the temperature.
- a fifth aspect of the load driving method according to the present invention is any one of the second aspect to the fourth aspect, wherein the predetermined setting is an environment subject to the air conditioning. Including heating operation under conditions where the temperature is higher than the second temperature.
- a sixth aspect of the load driving method according to the present invention is any one of the second to fifth aspects, in which the indoor unit (5) is not operating (S220). ), And when the second time longer than the first time has passed (S223), it is determined that the predetermined condition is satisfied.
- a seventh aspect of the load driving method is the first aspect thereof, wherein the second control circuit (31a) is configured to perform the above operation under the first control command (CNTL1).
- An inverter circuit (312, 313, 314) that generates power to be supplied to the load (322, 309) and an inverter control circuit (316) that controls the operation of the inverter circuit are provided.
- the load includes a motor (322) to which electric power is supplied from the inverter circuit (312, 313, 314), and a compressor (309) that is driven by the first motor and compresses the refrigerant.
- step (c) power to the inverter circuit is determined.
- the supply of power to the inverter control circuit is cut off while maintaining the supply of power.
- An eighth aspect of the load driving method is any one of the second to seventh aspects, wherein (e) after the execution of step (d), When the operation of the machine (5) stops (S14), the method further includes a step (S15) of stopping the driving of the load by the second control circuit. Then, after the execution of the step (e), both the supply of the operating power to the first control circuit (307) and the supply of the operating power to the second control circuit (31a) are stopped (S16, S17) Except for the case, step (c) or step (d) is executed again.
- the supply of operating power to the second control circuit is interrupted by the conduction Z non-conduction of the first control switch, so that the first control Power can be saved while operating power is supplied to the circuit.
- the power supply to the inverter circuit is cut off in response to an abnormal situation regardless of whether power is saved or not, in response to the abnormal situation.
- the supply of operating power to the inverter control circuit is interrupted by the conduction Z non-conduction of the first control switch, so the first control circuit However, it is possible to achieve power saving while supplying operating power.
- the power supply to the inverter circuit is interrupted to cope with the abnormal pressure of the refrigerant.
- the third control circuit contributes to power saving by cutting off the operating power, similarly to the second control circuit.
- the second compressor can compress the refrigerant to some extent. It becomes.
- the supply of operating power to the second control circuit is interrupted separately from the supply of operating power to the first control circuit. Therefore, power saving can be realized.
- the third aspect of the load driving method of the present invention even if the indoor unit operates, if the air conditioning is air blowing, the refrigerant is not required to be compressed. Power consumption is reduced by cutting off the operating power to the second control circuit by executing c).
- the refrigerant when the environmental temperature is low and the cooling is selected in the situation, the refrigerant is compressed in advance before the operation of the indoor unit. Since the necessity is low, power consumption is reduced by cutting off the operating power to the second control circuit by executing step (c).
- step (c) when the situation in which the indoor unit has not been operating continues for a long time, step (c) is executed to operate power to the second control circuit. By cutting off, power consumption is reduced.
- step (c) is executed. Power consumption is reduced by shutting off the operating power to the inverter control circuit.
- the predetermined condition is determined again and the power saving flow is executed.
- FIG. 1 is a circuit diagram illustrating a configuration that is useful in an embodiment of the present invention.
- FIG. 2 is a flowchart showing an operation that works on this embodiment.
- FIG. 3 is a circuit diagram exemplifying a configuration that is useful for deformation of the present embodiment.
- FIG. 4 is a flowchart showing an operation that works for deformation of the present embodiment.
- FIG. 5 is a circuit diagram exemplifying a configuration that works for deformation of the present embodiment.
- FIG. 6 is a circuit diagram showing a technique for driving a compressor.
- FIG. 7 is a flowchart showing an operation for reducing standby power.
- FIG. 1 is a circuit diagram illustrating a configuration useful for an embodiment of the present invention.
- the same components are denoted by the same reference numerals.
- control switch 305 is interposed between the noise filter 33 and the power input 311 in the compressor driver 31a, and performs power supply Z cutoff to the compressor driver 31a.
- neutral point N and S-phase power lines are adopted as power line group L2 connected to power input 311 in compressor driver 31a, and power line group L2
- Control switch 305 conducts conduction of Z-phase power line Z and non-conduction.
- the power line of the R phase and the neutral point N may be adopted as the power line group L2.
- a control switch 304 which conducts under the switching command WP and does not conduct Z, is provided to be inserted into the S-phase power line.
- the control switches 304 and 305 are both interposed in the S-phase power line between the three-phase power supply 41 and the compressor dryer 31a, and both are turned on and off in the same manner by the switching command WP. Therefore, it is possible to combine them as one control switch closer to the three-phase power supply 41 than branching to the power supply line groups LI and L2.
- the operating power of the compressor driver 3 la obtained from the power input 311 is shown in more detail.
- the power input 311 energizes the microprocessor 316, and the microprocessor 316 generates a switching command T based on the switching control command CNTL1.
- the microprocessor 316 functions as an inverter control circuit that gives a switching command T to the switching circuit 314 to control the switching and controls an inverter circuit including the switching circuit 314.
- the switching control command CNTL2 passes through the compressor driver 31a but is substantially passed.
- the microprocessor 316 represents the rectifier circuit and constant voltage circuit necessary for its operation!
- FIG. 2 is a flowchart showing the operation for reducing standby power in the present embodiment.
- Step S11 is separated into steps Sl la and Sl lb in the flowchart of FIG. It has a structure substituted with 22A.
- step SIla first, the power switch 301 is turned on. At this point, control switches 304 and 305 are still non-conductive, and power is supplied to compressor driver 3 la and fan driver 3 lb.
- step SI la When step SI la is executed, operating power is supplied to control board 307, and control board 307 communicates with indoor unit 5 (open arrow in FIG. 1). Thereafter, the process proceeds to step Sl lb, and power is turned on to compressor driver 3 la and fan driver 3 lb.
- the control switches 304 and 305 transition from the non-conducting state to the conducting state by the activation signal of the control signal WP.
- the control switch 305 is turned on, the operating power of the compressor driver 31a is supplied from the power line group L2 to the power input 311.
- the power supply Operating power of 3 lb fan driver is supplied from line group L3.
- the control switch 303 is turned on, and together with the control switch 304, the R, S, and T phase power is supplied to the compressor driver 3la by the power line group L1. Thereafter, the process proceeds to step S22A.
- Step S22A includes steps S220 to S225.
- step S220 it is determined whether or not the indoor unit 5 is operating as in step S12. If the indoor unit 5 is in operation, it is determined in step S224 whether or not the operating power to the compressor driver 31a and thus to the fan driver 3 lb is cut off. If it is shut off, the operating power is supplied by step S225 (conduction of control switches 304 and 305 by activation of control signal WP).
- step S220 determines whether the operating power is cut off. If the operating power is cut off, for example, if the determination in step S220 is made immediately after execution of step Sl lb, step S225 is not executed, and the process proceeds from step S224 to step S13. Proceed to The processing of steps S13 to S16 is already described.
- step SI lb After the execution of step SI lb, the predetermined condition is satisfied! Under the condition that the control signal WP is inactive, the control switches 304 and 305 are turned off and the motor 322 is turned off. The driving power, the operating power of the compressor driver 31a itself, and consequently the operating power of the fan driver 31b are cut off (step S222). In other words, in a situation where the predetermined condition is not satisfied, the process proceeds to step S13, and the compressor driver 31a and the fan driver 31b change the motors 322 and 323 based on the control commands CNTL1 and CNTL2. As a result, the compressor 309 and the fan 310 are driven.
- step Sl lb is also the first time (for example, 10 minutes).
- the predetermined setting include G) to (iiO) below.
- the ambient temperature subject to GO air conditioning must be lower than the first temperature (eg 30 ° C) and the cooling operation should be performed under circumstances:
- step S22 1 force step S223.
- step S223 it is determined whether the second time (for example, 20 minutes) has elapsed for the execution power of step SI lb. If the second time has not elapsed, the process returns to step S220. However, if the second time has elapsed, the process proceeds to step S222, and the power for driving the motor 322, the operating power for the compressor driver 31a itself, and the operating power for the fan driver 31b are cut off.
- the second time for example, 20 minutes
- the second time is preferably longer than the first time. If the 2nd time is less than the 1st time, even if the air conditioning setting is selected in step S221! / GXiO (iii), it is This is because it is not determined whether it will last for an hour.
- step S222 when the power for driving the motor 322, the operating power for the compressor driver 31a itself, and the operating power for the fan driver 31b are cut off in step S222, the processing returns to step S220. Then, it is determined again whether or not the indoor unit 5 is in operation. [0077] Then, when it is determined that the indoor unit 5 that has been stopped is being operated, the process proceeds to step S225 via step S224, and the electric power for driving the motor 322 and the compressor driver are driven. The operating power of 31a itself and the operating power of fan driver 31b are supplied. If it is determined that the indoor unit 5 is not in operation, the power saving steps S221 to S23 are executed again.
- the supply of power Z for driving the motor 322 is interrupted by the conduction Z non-conduction of the control switch 304, and the operation power of the compressor driver 31a itself is reduced by the conduction Z non-conduction of the control switch 305.
- Supply of operating power of driver 31b Z is cut off, respectively. Therefore, it is possible to realize power saving while supplying operating power to the control board 307. Since the operating power is supplied to the control board 307, the switching command WP is activated and the operating power can be supplied again to the compressor driver 31a and the fan driver 31b.
- the operation control of the control switch 305 by the switching command WP is indicated by a broken line in FIG.
- the control switch 304 is a desirable component from the viewpoint of power saving of the power for driving the motor 322, and the control switch 305 is the operating power of the compressor driver 31a itself (required for driving the motor 322). It can be said that this is a desirable component from the viewpoint of power saving.
- the electric power for driving the motor 322 is converted by the inverter circuit in the compressor driver 31a. Therefore, from the viewpoint of saving power supplied to the compressor driver 31a, it is possible to grasp either one of the control switches 304, 305 or both together as a configuration requirement.
- Control switches 302 and 303 are also provided, and these switches become non-conductive when the pressure abnormality signal HPS is activated. With a powerful operation, regardless of whether there is power saving or not, when a pressure abnormality occurs in the compressor 308, 309, the power supply to the inverter circuit is cut off and the abnormal situation is dealt with.
- the operation control of the control switches 302 and 303 by the pressure abnormality signal HPS is indicated by a broken line.
- the control switch 302 when the pressure abnormality signal HPS is activated, the control switch 302 is also turned off, the power to the motor 321 is cut off, and the compressor 308 is stopped. Either the pressure abnormality signal SHP1 from the compressor 308 or the pressure abnormality signal SHP2 from the compressor 309 is active. If this happens, the pressure abnormality signal HPS will be activated. Therefore, even if an abnormality occurs in the compressor 308, not only the control switch 302 but also the control switch 303 becomes non-conductive, and the compressor 309 stops. Of course, the presence of the compressor 308 is not essential in the present invention.
- control switch 303 and the control switches 305 and 304 separately, the configuration of the compressor driver 31a is maintained, and only when the three-phase power source 41 having the neutral point N is adopted.
- present invention can be applied to a case where a three-phase power source having no neutral point is adopted.
- the compressor 308 driven by the motor 321 is provided, even if the control switch 305 that performs power saving becomes non-conductive and the compressor 309 stops, the compressor 308 Thus, a certain amount of refrigerant compression is possible. Therefore, the compressors 308 and 309, the motors 321 and 322 for driving these compressors, the outdoor unit having the control board 307 and the compressor driver 31a are desirable from the viewpoint of operating while saving power. Of course, it is desirable that the fan driver 31b, the motor 323, and the fan 310 are also provided.
- step S222 at least part of the power supply to the compressor driver 3 la may be cut off instead of cutting off all the power supply to the compressor driver 3 la.
- the electric power for driving the motor 322 may not be cut off, and the operating power of the compressor driver 31a itself may be cut off only with the switch 305.
- FIG. 3 is a circuit diagram illustrating a configuration that is effective in such deformation. From the configuration shown in FIG. 1, the control switch 304 is removed by a short circuit, and the wiring group L1 is not cut depending on the switching command WP. Switching command WP controls only opening and closing of control switch 305.
- control switch 305 is provided on the microprocessor 316 side with respect to the power input 311
- a configuration in which the power supply to the microprocessor 316 is cut off by the disconnection of the control switch 305 is illustrated.
- the wiring group L3 is drawn from the side farther than the control switch 305 with respect to the power input 311 and the power supply Z interruption to the wiring group L3 also depends on the opening / closing of the control switch 305 is illustrated.
- the power switch 311 is closer to the control switch 305, the side force also pulls out the wiring group L3, and the supply of power to the wiring group L3 is not dependent on the opening / closing of the control switch 305.
- the compressor driver 31a and the fan driver 31b are mounted on the same board as the control board 307.
- FIG. 4 is a flowchart showing an operation of reducing power in the configuration shown in FIG. 3, and has a configuration in which step S22A is replaced with step S22B in the flowchart shown in FIG. .
- step S221 Adopting a configuration with S 223 removed. Specifically, if it is not determined in step S221 that 10 minutes have elapsed under the predetermined setting, the process returns to step S226.
- step S226 it is determined whether or not it is under the same setting as in step S221. As the predetermined setting in these steps, the setting that the inverter circuit is not controlled is adopted. Therefore, in steps S221 and S226, it is determined whether or not the power is not continuously controlled for 10 minutes or longer. If the determination is affirmative, the process proceeds to step S222. If the determination is negative, the process proceeds to step S224.
- step S222 in FIG. 4 is different from step S222 in FIG. 3 and does not indicate power-off of the fan driver 31b.
- the power supply to the wiring group L3 is cut off, but it is not necessary to cut off the power supply to the wiring group L3 as described above.
- the following case can be considered as the setting for not controlling the inverter circuit.
- FIG. 5 is a circuit diagram illustrating a case where the configuration shown in FIG. 3 is configured using a single-phase power source.
- the three-phase power source 41 is replaced with a single-phase power source 41, and the power switch 301, the control switch 302, and the motor 321 are all replaced with a single-phase power source.
- the wiring group L2 also uses two wires that are not three wires. Thus, it is obvious that the present invention can be applied to a single-phase power source.
- the indoor unit 5 may communicate with the microprocessor 316 via the control board 307. For example, in this case, whether the communication is correct or not is determined appropriately. However, this determination is not performed when the control switch 305 is turned off in step S222 shown in FIG. 2 or FIG. This is because the microprocessor 316 is not operating when power is applied. Therefore, it is desirable that the determination is made after step S225 is executed, and that the communication is restarted from the initial operation, for example, the operation at power-on.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2007800074747A CN101395430B (zh) | 2006-03-08 | 2007-03-02 | 负载驱动装置、空调机的室外机以及负载的驱动方法 |
EP07737670.5A EP1995529B1 (en) | 2006-03-08 | 2007-03-02 | Load driving apparatus for outdoor unit of an air conditioner and load driving method |
ES07737670T ES2715601T3 (es) | 2006-03-08 | 2007-03-02 | Aparato de excitación de carga para unidad exterior de un acondicionador de aire y método para excitar la carga |
AU2007223535A AU2007223535B2 (en) | 2006-03-08 | 2007-03-02 | Load driving device, outdoor unit of air conditioner, and driving method of load |
US12/224,089 US8109103B2 (en) | 2006-03-08 | 2007-03-02 | Load driving device, outdoor unit of air conditioner, and driving method of load |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-062134 | 2006-03-08 | ||
JP2006062134 | 2006-03-08 | ||
JP2006233758A JP4075951B2 (ja) | 2006-03-08 | 2006-08-30 | 負荷駆動装置及び空気調和機の室外機並びに負荷の駆動方法 |
JP2006-233758 | 2006-08-30 |
Publications (1)
Publication Number | Publication Date |
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WO2007102423A1 true WO2007102423A1 (ja) | 2007-09-13 |
Family
ID=38474854
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/054022 WO2007102423A1 (ja) | 2006-03-08 | 2007-03-02 | 負荷駆動装置及び空気調和機の室外機並びに負荷の駆動方法 |
Country Status (8)
Country | Link |
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US (1) | US8109103B2 (ja) |
EP (1) | EP1995529B1 (ja) |
JP (1) | JP4075951B2 (ja) |
KR (1) | KR101027613B1 (ja) |
CN (1) | CN101395430B (ja) |
AU (1) | AU2007223535B2 (ja) |
ES (1) | ES2715601T3 (ja) |
WO (1) | WO2007102423A1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008046040B4 (de) * | 2008-09-05 | 2012-03-15 | Siemens Medical Instruments Pte. Ltd. | Verfahren zum Betrieb einer Hörvorrichtung mit Richtwirkung und zugehörige Hörvorrichtung |
JP5007764B2 (ja) * | 2010-09-22 | 2012-08-22 | ダイキン工業株式会社 | モータ駆動システム及びモータシステム |
BRPI1100270B1 (pt) * | 2011-02-25 | 2019-03-19 | Embraco Indústria De Compressores E Soluções Em Refrigeração Ltda | Sistema e método de controle eletrônico de um compressor de capacidade variável |
FR2976654B1 (fr) * | 2011-06-15 | 2013-07-12 | Voltalis | Dispositif de chauffage, ventilation et/ou climatisation a gestion d'alimentation ciblee. |
JP5454596B2 (ja) * | 2012-02-08 | 2014-03-26 | ダイキン工業株式会社 | 電源制御装置 |
JP5421433B2 (ja) * | 2012-06-25 | 2014-02-19 | ファナック株式会社 | 制御電源の消費電力を停電時に低減するモータ制御装置 |
JP5984732B2 (ja) * | 2013-04-09 | 2016-09-06 | 三菱電機株式会社 | 空気調和機 |
WO2016063677A1 (ja) * | 2014-10-24 | 2016-04-28 | 三菱電機株式会社 | 除湿機の制御装置 |
JP6464903B2 (ja) * | 2015-04-16 | 2019-02-06 | ダイキン工業株式会社 | 空気調和機のインバータ駆動装置 |
JP6393287B2 (ja) * | 2016-01-27 | 2018-09-19 | 日立ジョンソンコントロールズ空調株式会社 | 空気調和機の室外機 |
US11781776B2 (en) * | 2018-04-18 | 2023-10-10 | Mitsubishi Electric Corporation | Control substrate and indoor equipment of air conditioner |
JP7390122B2 (ja) * | 2019-07-18 | 2023-12-01 | 日立ジョンソンコントロールズ空調株式会社 | 空気調和システム及び異常検出システム |
JP7356832B2 (ja) * | 2019-07-18 | 2023-10-05 | 日立ジョンソンコントロールズ空調株式会社 | 空気調和システム及び異常検出システム |
JP7148807B2 (ja) | 2019-07-31 | 2022-10-06 | ダイキン工業株式会社 | 電算機室用空気調和装置 |
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JPH11211253A (ja) | 1998-01-28 | 1999-08-06 | Matsushita Electric Ind Co Ltd | 分離型空気調和機の制御装置 |
JPH11311436A (ja) | 1998-04-28 | 1999-11-09 | Toshiba Corp | 空気調和機 |
JP2000205627A (ja) | 1999-01-07 | 2000-07-28 | Matsushita Electric Ind Co Ltd | 空気調和機の待機運転制御装置 |
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JPH11325545A (ja) | 1998-05-15 | 1999-11-26 | Daikin Ind Ltd | 蓄電式空調システム |
JP3705934B2 (ja) * | 1998-08-26 | 2005-10-12 | 株式会社リコー | モータの駆動装置 |
JP4441247B2 (ja) * | 2003-12-04 | 2010-03-31 | 三菱電機株式会社 | エレベータの制御装置 |
KR20050055452A (ko) | 2003-12-08 | 2005-06-13 | 엘지전자 주식회사 | 대기전력 절감 에어컨 시스템 및 그 동작방법 |
KR100836821B1 (ko) | 2007-02-16 | 2008-06-12 | 삼성전자주식회사 | 대기전력 절감 공기조화기 시스템 및 그 동작방법 |
-
2006
- 2006-08-30 JP JP2006233758A patent/JP4075951B2/ja active Active
-
2007
- 2007-03-02 US US12/224,089 patent/US8109103B2/en active Active
- 2007-03-02 ES ES07737670T patent/ES2715601T3/es active Active
- 2007-03-02 KR KR1020087021717A patent/KR101027613B1/ko active IP Right Grant
- 2007-03-02 AU AU2007223535A patent/AU2007223535B2/en active Active
- 2007-03-02 EP EP07737670.5A patent/EP1995529B1/en active Active
- 2007-03-02 CN CN2007800074747A patent/CN101395430B/zh active Active
- 2007-03-02 WO PCT/JP2007/054022 patent/WO2007102423A1/ja active Application Filing
Patent Citations (5)
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JPH11211253A (ja) | 1998-01-28 | 1999-08-06 | Matsushita Electric Ind Co Ltd | 分離型空気調和機の制御装置 |
JPH11311436A (ja) | 1998-04-28 | 1999-11-09 | Toshiba Corp | 空気調和機 |
JP2000205627A (ja) | 1999-01-07 | 2000-07-28 | Matsushita Electric Ind Co Ltd | 空気調和機の待機運転制御装置 |
JP2000333365A (ja) | 1999-05-19 | 2000-11-30 | Hitachi Ltd | 待機時電力供給システムとこれを用いた空気調和機,冷蔵庫 |
JP2000346425A (ja) | 1999-06-03 | 2000-12-15 | Hitachi Ltd | 空気調和機 |
Non-Patent Citations (1)
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Also Published As
Publication number | Publication date |
---|---|
EP1995529A4 (en) | 2015-01-21 |
AU2007223535A1 (en) | 2007-09-13 |
US8109103B2 (en) | 2012-02-07 |
AU2007223535B2 (en) | 2010-08-19 |
EP1995529A1 (en) | 2008-11-26 |
KR20080100234A (ko) | 2008-11-14 |
JP4075951B2 (ja) | 2008-04-16 |
CN101395430A (zh) | 2009-03-25 |
JP2007271248A (ja) | 2007-10-18 |
EP1995529B1 (en) | 2018-12-19 |
CN101395430B (zh) | 2010-08-11 |
KR101027613B1 (ko) | 2011-04-06 |
US20090007579A1 (en) | 2009-01-08 |
ES2715601T3 (es) | 2019-06-05 |
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