CN100466441C - Air-conditioner controller - Google Patents
Air-conditioner controller Download PDFInfo
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- CN100466441C CN100466441C CNB2004800027808A CN200480002780A CN100466441C CN 100466441 C CN100466441 C CN 100466441C CN B2004800027808 A CNB2004800027808 A CN B2004800027808A CN 200480002780 A CN200480002780 A CN 200480002780A CN 100466441 C CN100466441 C CN 100466441C
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Abstract
This air-conditioning control device includes a transformer 32 for outputting three-phase AC voltage different in phase by a prescribed angle from input three-phase AC voltage by inputting the three-phase AC voltage of a three-phase AC power source, when controlling an inverter main circuit so that an input current of a rectifying circuit does not exceeds a current preset value, when driving a compressor motor 2 by converting an obtained direct current into an alternating current of a variable frequency via the inverter main circuit 25 by rectifying the three-phase AC voltage by the rectifying circuit 23, and auxiliary rectifying circuits 33 and 34 for rectifying and supplying the three-phase AC voltage outputted from this transformer to the output side of the rectifying circuit, and is provided with a parameter changing means 28A connectable with the multi-pulse rectifier 30 additionally connectable to the rectifying circuit, and changing a control parameter of an inverter control means so that the current preset value is reduced by a prescribed value when the multi-pulse rectifier is connected to the rectifying circuit.
Description
Technical field
The present invention relates to air conditioning control device, relate in particular to by DC-to-AC converter being supplied with in three-phase alternating voltage rectification and the alternating voltage that is transformed into changeable frequency, being made the compressor controlled air conditioning control device on ability that forms freeze cycle.
The present invention relates to again by being transformed into the alternating voltage supply DC-to-AC converter of changeable frequency to the commutating voltage that the three-phase alternating voltage rectifier gets, and makes the compressor of formation freeze cycle and air blast be able to the air conditioner of variable-ratio ground driving and the multiple-pulse rectifier of use in refrigeration system.
Background technology
The air conditioning control device that has on the ability DC-to-AC converter of control compressor is structurally made three-phase alternating voltage is transformed into direct voltage, and this dc voltage conversion become the alternating voltage of changeable frequency, supply with the motor (compressor electric motor hereinafter referred to as) that drives the compressor that forms freeze cycle.
Figure 20 is the circuit diagram that the composition of this existing air conditioning control device is shown.Among this figure, air conditioning control device 10 has power end daughter board 11 and DC-to-AC converter 12.The part that DC-to-AC converter 12 comprises is rectification circuit 13, smmothing capacitor 14, converter main circuit 15, microcomputer 16 and current transformer CT.Here, the ac input end of rectification circuit 13 connects the load end of power end daughter board 11, and connects three-phase alternating-current supply 1 at the power end of this power end daughter board 11.The dc output end of rectification circuit 13 connects smmothing capacitor 14, also connects the direct-flow input end of converter main circuit 15 simultaneously.The ac output end of this converter main circuit 15 connects compressor 2.And, make the current transformer CT that on the path that rectification circuit 13 is connected to power end daughter board 11, is provided as current sensor on the structure, and make the detected value of microcomputer 16 according to the temperature sensor shown in omitting among the current detection value of this current transformer CT and the figure, by the drive circuit control inverter main circuit 15 shown in omitting among the figure.
According to above-mentioned composition, in addition full-wave rectification of the three-phase alternating voltage that rectification circuit 13 will be accepted from three-phase alternating-current supply 1, and after smmothing capacitor 14 makes the direct current (pulsating current) of these rectification circuit 13 outputs level and smooth, be added to converter main circuit 15.Converter main circuit 15 connects into the three-phase bridge circuit with switch elements such as IDBT, the break-make of these switch elements of sequential control in accordance with regulations, thereby the three-phase alternating voltage of output PWM, and this three-phase alternating voltage supplied with compressor 2.
At this moment, break-make frequency as the switch element of the microcomputer 16 control inverter main circuits 15 of inverter control unit, make compressor 2 performances adapt to the air-conditioning ability of air-conditioning load, also control the break-make frequency simultaneously, so that do not form overcurrent condition or be no more than the predetermined electric current limiting value according to the detected value of current transformer CT.
In the case, when rectification circuit 13 will exchange rectification in addition and be transformed into direct current, produce big current ripple in dc terminal, this ripple becomes high order harmonic component commercial three-phase alternating-current supply 1 side, causes various faults.As reducing the measure that this high order harmonic component is used, common channel setting active filter at three phase mains.
As other measure that reduces high order harmonic component, proposed to be called the rectifier (for example with reference to 2002-No. 10646 communiques of Japan's patent disclosure) of " multiple-pulse rectifier (18 pulse processors or 12 pulse rectifiers) ", this rectifier have 1 output to the transformer of the three-phase alternating voltage of the phase place of three-phase alternating voltage deviation predetermined angular and 2 with the output of this transformer in addition full-wave rectification and be transformed into direct current after supply with the auxiliary rectifier circuit of the rectification circuit output channel of main circuit.
Above-mentioned active filter is effective to reducing high order harmonic component, but the cost height of device own, thereby become the reason that the air conditioning control device price raises.
Otherwise the multiple-pulse rectifier is more inexpensive than active filter, but has the difficult problem that is used for common air conditioner.Promptly, for the power consumption with converter main circuit 15 is suppressed to below the limit value, current transformer CT detects the electric current of the interchange input channel of rectification circuit, and microcomputer 16 is controlled, make this interchange input current be no more than predefined current setting value, but existing air conditioning control device is walked around current transformer CT when adding the component units of multiple-pulse rectifier, three-phase alternating current is transformed into direct current, supplies with converter main circuit 15.
Therefore, the input current that microcomputer 16 is ignored air conditioner surpasses set point, and the current detection value of current transformer CT is controlled to is no more than current limit value, thus can not the limiting AC input current, might can not protect converter main circuit 15.
According to the capacity of the power consumption equipment of article in the house that air conditioner is set and the ratio that accounts for the air conditioner power consumption of this power consumption equipment capacity determine this air conditioner whether needs tackle the measure of high order harmonic component, so in fact same air conditioner also produces the situation of the measure that need tackle high order harmonic component with the article that are provided with and does not need the situation of this measure.Therefore, as the air conditioning control device of air conditioner, wish air conditioning control device with the versatility that can both tackle under arbitrary situation.
Have generally to make on the air conditioner structure of DC-to-AC converter of variable-ratio ground Driven Compressor and air blast three-phase alternating voltage is transformed into direct voltage, and after this dc voltage conversion being become the alternating voltage of changeable frequency, supply with drive motor.
At this moment, use the full-wave rectifier that diode is connected into bridge circuit that exchange conversion is become direct current, then dc terminal produces big current ripple, and this ripple becomes the high order harmonic component of commercial three-phase alternating current source side.When this high order harmonic component causes various fault, need be at three phase mains channel setting active filter for example, reducing high order harmonic component, but, do not need to reduce high order harmonic component sometimes according to the situation of power consumption equipment.
That is, whether need to reduce high order harmonic component, depend on the capacity of air conditioner and the ratio of the power supply capacity of the whole power consumption equipments that comprise this air conditioner.For example, drive in the equipment power consumption equipment how of alternating current machine with certain speed with exchanging former state without rectifier, even air conditioner is set, as entire equipment, the ratio of high order harmonic component is also low, thereby needn't limit high order harmonic component.Otherwise,, just need reduce high order harmonic component if use the ratio or the capacity of air conditioner of the inverter contain rectifier big.
As the measure that reduces high order harmonic component, the cost height of above-mentioned active filter own is so become the reason that the air conditioner price raises.Therefore, as the cheap measure that reduces high order harmonic component, proposition is called the rectifier (for example with reference to 2002-No. 10646 communiques of Japan's patent disclosure) of " multiple-pulse rectifier (18 pulse processors or 12 pulse rectifiers) ", and this rectifier has the three-phase alternating voltage rectification circuit of rectification in addition in statu quo, 1 output is to the transformer of the three-phase alternating voltage of the phase place of this three-phase alternating voltage deviation predetermined angular, and 2 with the output of this transformer in addition full-wave rectification and be transformed into direct current after supply with the three-phase alternating voltage auxiliary rectifier circuit of the rectification circuit output channel of rectification in addition in statu quo.
Can be by earlier above-mentioned multiple-pulse rectifier being packed into as the air conditioner DC power supply, constitute inexpensive and can reduce the air conditioner of high order harmonic component.Yet, as indicated above, do not need to make the air conditioner that adopts DC-to-AC converter all to have the function that suppresses high order harmonic component, need only when being a problem, high order harmonic component reduce the measure of high order harmonic component by the relation of the capacity of the capacity of the air conditioner that is provided with and power consumption equipment.
The multiple-pulse rectifier is owing to the big electric current of circulation, and its weight arrives several kilograms to tens kilograms degree greatly.So there is the big problem of weight in the air conditioner that the multiple-pulse rectifier is housed.Therefore, consider it is not that whole air conditioners are all adorned the multiple-pulse rectifier, but prepare the machine that the air conditioner of multiple-pulse rectifier is set and the air conditioner of this rectifier is not set respectively, according to need reduce high order harmonic component the time and when not required situation selection machine separately.Yet according to the viewpoint of producing and selling, the machine increase causes workloads such as logistics, sale, production management to increase, thereby the air conditioner of doing one's utmost to seek to have versatility.
Summary of the invention
The present invention considers above-mentioned condition and finishes that its 1st purpose is: a kind of air conditioning control device with versatility is provided, can use the high price device of active filter and so on, even connect also limiting AC input current reliably of multiple-pulse rectifier.
The 2nd purpose of the present invention is: a kind of air conditioner with versatility is provided, can only when high order harmonic component is a problem, connects the multiple-pulse rectifier according to the situation that is provided with of power consumption equipment.
The 3rd purpose of the present invention is: the most suitable this multiple-pulse rectifier with air conditioner of versatility is provided.
The 4th purpose of the present invention is: a kind of air conditioner that also can fully guarantee safety in utilization under the situation that does not need the multiple-pulse rectifier is provided.
The present invention the 1st aspect provides a kind of air conditioning control device, has the rectification circuit that the three-phase alternating voltage of accepting from three-phase alternating-current supply is carried out rectification, become the alternating voltage of changeable frequency to supply with the converter main circuit of the motor that drives the compressor that forms freeze cycle the output transform of rectification circuit, detect the current sensor of the input current of rectification circuit, and converter main circuit is controlled to changing the inverter control unit that the current value that in the ability of compressor described current sensor senses is gone out is no more than setting according to the air-conditioning load, it is characterized by: have the parameter change unit, but so that adjunction multiple-pulse rectifier, after the three-phase alternating voltage of input three-phase alternating-current supply and output exported in addition rectification to the three-phase alternating voltage of the transformer of the three-phase alternating voltage of the phase place of this three-phase alternating voltage deviation predetermined angular, supply with the output of rectification circuit, and when rectification circuit connects the multiple-pulse rectifier, the Control Parameter of change inverter control unit makes current setting value reduce setting.
The present invention the 5th aspect provides a kind of air conditioning control device, has the rectification circuit that the three-phase alternating voltage of accepting from three-phase alternating-current supply is carried out rectification, become the alternating voltage of changeable frequency to supply with the converter main circuit of the motor that drives the compressor that forms freeze cycle the output transform of rectification circuit, detect the current sensor of the input current of rectification circuit, and converter main circuit is controlled to the inverter control unit that the current value that when load changes the ability of described compressor according to air-conditioning current sensor senses is gone out is no more than setting, it is characterized by: have the parameter change unit, but so that adjunction multiple-pulse rectifier, after the three-phase alternating voltage of input three-phase alternating-current supply and output exported in addition rectification to each three-phase alternating voltage of the transformer of the 2nd three-phase alternating voltage of the phase place of the 1st three-phase alternating voltage of the phase place of the leading predetermined angular of this three-phase alternating voltage and the predetermined angular that lags, supply with the output of rectification circuit, and when rectification circuit connects the multiple-pulse rectifier, the Control Parameter of change inverter control unit makes current setting value reduce setting.
Description of drawings
Fig. 1 is the circuit diagram that the composition of execution mode 1 is shown.
Fig. 2 is the transformer polar plot that the loop construction of transformer of the pulse rectifier of explanation pie graph 1 is used.
Fig. 3 is a coil structure of making the transformer 32 that satisfies transformer polar plot shown in Figure 2 on the structure.
Fig. 4 illustrates three-phase alternating current input waveform analog result so that the oscillogram that the air conditioning control device that do not have pulse rectifier and execution mode 1 are compared.
Fig. 5 illustrates the measurement result of the DC voltage waveform of supplying with converter main circuit so that the oscillogram that the air conditioning control device that do not have pulse rectifier and execution mode 1 are compared.
Fig. 6 illustrates the figure of the change state of the threshold value of distinguishing restricted zone and conventional running district with the running of explanation execution mode 1.
Fig. 7 (a) and (b) are partial perspective views of outdoor shell of installment state that the master unit of execution mode 1 is shown.
Fig. 8 is the circuit diagram that the composition of embodiment of the present invention 2 is shown.
Fig. 9 is the circuit diagram that the composition of embodiment of the present invention 3 is shown.
Figure 10 is the circuit diagram that the composition of embodiment of the present invention 4 is shown.
Figure 11 is the circuit diagram that the composition example when using the multiple-pulse rectifier in the execution mode shown in Figure 10 4 is shown.
Figure 12 is the vertical view that the composition of multiple-pulse rectifier is shown.
Figure 13 illustrates to point out that to connect the portion of terminal that the multiple-pulse rectifier uses be the figure of the unit of conduction state.
Figure 14 be illustrate point out connect portion of terminal that the multiple-pulse rectifier uses be conduction state the unit another form the figure of example.
Figure 15 illustrates that to connect portion of terminal that the multiple-pulse rectifier uses be the figure that the unit of conduction state makes the composition example that fail safe improves with pointing out.
Figure 16 (a) is the summary composition diagram of embodiment of the present invention 5, and Figure 16 (b) is the vertical view that the summary composition of the multiple-pulse rectifier that adds in addition as optional part is shown.
Figure 17 (a) is the circuit diagram that the inside composition of the DC-to-AC converter that constitutes embodiment of the present invention 6 is shown, Figure 17 (b) is the stereogram that the master unit installment state of this DC-to-AC converter is shown, and Figure 17 (c) is the vertical view of the multiple-pulse rectifier of this DC-to-AC converter connection.
Figure 18 is vertical view that the detailed composition of the multiple-pulse rectifier that constitutes embodiment of the present invention 7 is shown is connected the connection status of this multiple-pulse rectifier with air conditioning control device a circuit diagram.
Figure 19 (a) and (b) are stereograms that the conversion example execution mode of master unit shown in Figure 17 is shown.
Figure 20 is the circuit diagram that the composition of existing air conditioning control device is shown.
Embodiment
Below, the detailed description of the preferred embodiment the present invention shown in reference to the accompanying drawings.
(air conditioning control device)
Fig. 1 is the circuit diagram that the composition of embodiment of the present invention 1 is shown, specifically: make air conditioning control device 20A have pulse rectifier 30 as 18 pulse rectifier component units in addition.
Among Fig. 1, air conditioning control device 20A has the DC-to-AC converter 22A that connects power end daughter board 21 and direct-flow input end daughter board 29 respectively.The part of DC-to-AC converter 22A comprises rectification circuit 23, smmothing capacitor 24, converter main circuit 25, microcomputer 26A, electric current device 27 and EEPROM28A.
Here, the ac input end of rectification circuit 23 connects power end daughter board 21 load sides, and the power supply side of this power end daughter board 21 connects three-phase alternating-current supply 1.The connection smmothing capacitor 24 of the direct current of rectification circuit 23 output also connects the direct-flow input end of converter main circuit 25 simultaneously.The ac output end of this converter main circuit 25 connects compressor electric motor 2.
On the path of power end daughter board 21 connection rectification circuits 23, be provided as the current transformer 27 of current sensor, and make microcomputer 26A on the structure according to the current detection value of this current transformer 27 and the control inverter main circuits 25 such as detected value of unshowned temperature sensor.The load side that in the output channel of rectification circuit 23, connects direct-flow input end daughter board 29.
On the other hand, the part of pulse rectifier 30 comprises the power end daughter board 31 that connects three-phase alternating-current supply 1 usefulness by power end daughter board 21, by this power end daughter board 31 input three-phase alternating voltages and export transformer 32 respectively to the three-phase alternating voltage of the three-phase alternating voltage of leading about 40 degree phase places on this three-phase alternating voltage vector and about 40 degree phase places that lag, the auxiliary rectifier circuit 33 that the leading three-phase alternating voltage of phase place that this transformer 32 is exported carries out rectification, the auxiliary rectifier circuit 34 that the three-phase alternating voltage of the phase lag of this transformer 32 outputs is carried out rectification, and with these auxiliary rectifier circuits 33, be connected to the dc output end daughter board 35 that the power supply side of described direct-flow input end daughter board 29 uses after each dc output end parallel connection of 34.
Fig. 2 is the transformer polar plot of the concrete loop construction of the expression transformer 32 that constitutes 18 pulse rectifiers.Among Fig. 2, represent the three-phase alternating voltage of power supply with equilateral triangle R1, S1, T1.Is that the center is drawn as 2 points that the circular arc that connects remaining 2 summit S1, T1 gets and is taken as T3, R2 respectively with 3 five equilibriums with the summit R1 of this equilateral triangle.Be that the center is drawn as 2 points that the circular arc that connects remaining 2 summit R1, S1 gets and is taken as R3, S2 respectively with 3 five equilibriums with the summit T1 of this equilateral triangle again.
Then, the intersection point of the straight line that will be parallel to opposed one side by the summit R1 of equilateral triangle and straight line by 2 some T3, R2 on the circular arc and the straight line by 2 some R3, S2 on the circular arc is taken as R4, R5 respectively.The intersection point of the straight line that will be parallel to opposed one side by the summit S1 of equilateral triangle and straight line by 2 some R3, S2 on the circular arc and the straight line by 2 some S3, P2 on the circular arc is taken as S4, S5 respectively.Again, the intersection point of the straight line that will be parallel to opposed one side by the summit T1 of equilateral triangle and straight line by 2 some S3, T2 on the circular arc and the straight line by 2 some T3, R2 on the circular arc is taken as T4, T5 respectively.
Like this, form the hexagon transformer polar plot of tie point R4-R5-S4-S5-T4-T5-R4.Its middle conductor R4-R5 is corresponding to R phase the 1st coil 322, line segment S4-T4 is corresponding to R phase the 2nd coil 323, and line segment S4-S5 is corresponding to S phase the 1st coil 325, and line segment T5-R4 is corresponding to S phase the 2nd coil 326, line segment T4-T5 is corresponding to T phase the 1st coil 328, and line segment R5-S4 is corresponding to T phase the 2nd coil 329.The length of line segment is equivalent to the wire circle to the iron core of R, S, each phase of V, and " " expression polarity that is added on an end of each line segment for example is " just ".
Fig. 3 is the coil structure that satisfies the transformer 32 of transformer polar plot shown in Figure 2, is respective coil terminal or tap with the Along ent among Fig. 2 and the symbolic representation of intersection point are shown.Among this Fig. 3, at R phase iron core 321 coiling R the 1st coil 322 and R the 2nd coil 323 mutually mutually, wherein R mutually the 1st coil 322 centre tap R1 is set, at R phase the 2nd coil 323 centre tap T2, S3 are set.At S phase iron core 324 coiling S the 1st coil 325 and S the 2nd coil 326 mutually mutually, wherein S mutually the 1st coil 325 centre tap S1 is set, at S phase the 2nd coil 326 centre tap R2, T3 are set.Again, at T phase iron core 327 coiling T the 1st coil 328 and T the 2nd coil 329 mutually mutually, wherein T mutually the 1st coil 328 centre tap T1 is set, at T phase the 2nd coil 329 centre tap S2, R3 are set.
A R end R4 of the 1st coil 322 mutually connects a S end R4 of the 2nd coil 326 mutually, and a S end S4 of the 1st coil 325 mutually connects a T end S4 of the 2nd coil 329 mutually, and a T end T4 of the 1st coil 328 mutually connects a R end T4 of the 2nd coil 323 mutually; The R other end R5 of the 1st coil 322 mutually connects the T other end R5 of the 2nd coil 329 mutually, and the S other end S5 of the 1st coil 325 mutually connects the R other end S5 of the 2nd coil 323 mutually, and the T other end T5 of the 1st coil 328 mutually connects the S other end T5 of the 2nd coil 326 mutually.Draw lead from middle tap R1, S1, T1, form input terminal R1, S1, the T1 of three-phase alternating current, draw lead from middle tap R2, S2, T2, form input terminal R2, S2, the T2 of three-phase alternating current, and draw lead from middle tap R3, S3, T3, form input terminal R3, S3, the T3 of three-phase alternating current.
The following describes the running of above-mentioned such execution mode that constitutes 1.
The three-phase alternating voltage of three-phase alternating-current supply 1 is by rectification circuit (hereinafter referred to as main rectification circuit, so that with the difference of other rectification circuit) 23 in addition full-wave rectifications, and after smmothing capacitor 24 makes the direct current (pulsating current) of output level and smooth, supply with converter main circuit 25.Here, microcomputer 26A control inverter main circuit 25, make its output frequency three-phase alternating voltage corresponding, also carry out the control of restriction output frequency simultaneously, make the current detection value of current transformer 27 be no more than the current setting value that writes among the EEPROM28A with the air-conditioning load.Thus, control compressor electric motor 2 on ability makes it adapt to the air-conditioning load.
As everyone knows, the output frequency of converter main circuit 25 is high more, and the ripple of the direct current of supply converter main circuit 25 is big more, and three-phase alternating-current supply 1 side's higher harmonic components is also big.The transformer 32 output sizes that constitute pulse rectifier 30 equal three-phase alternating voltage and the three-phase alternating voltage of leading about 40 degree of phase place and the three-phase alternating voltage of about 40 degree of phase lag of its input.
In these outputs, from the leading three-phase alternating voltage of the phase place of the 2nd three-phase alternating current lead-out terminal R3 of transformer 32, S3, T3 output by in addition full-wave rectification of auxiliary rectifier circuit 33, from the three-phase alternating voltage of the phase lag of the 1st three-phase alternating current lead-out terminal R2 of transformer 32, S2, T2 output by in addition full-wave rectification of auxiliary rectifier circuit 34.Because each lead-out terminal of auxiliary rectifier circuit 33 and 34 is by parallel connection, make up 2 DC component (pulsating current component), and supply with the DC current path that is connected converter main circuit 25 on the main rectification circuit 23 with direct-flow input end daughter board 29 by dc output end daughter board 35.
Thus, the paddy of the ripple voltage that main rectification circuit 23 is exported is filled out and is not had.In other words, auxiliary rectifier circuit 33 and 34 conductings are filled out no paddy of the ripple voltage of main rectification circuit 23 outputs.As a result, the direct voltage ripple of supplying with converter main circuit 25 reduces, and the higher harmonic components that power supply side occurs also reduces.
The composition of execution mode 1 adds pulse rectifier 30 at the air conditioning control device 20A with direct-flow input end daughter board 29, even thereby do not use the high price active filter, only, also can reduce to supply with the direct voltage ripple of converter main circuit 25 and the higher harmonic components of alternating current source side by adding pulse rectifier 30.
Fig. 4 (a) is the input current waveform analog result of three-phase alternating current with air conditioning control device 20A of pulse rectifier 30, and Fig. 4 (b) is the input current waveform analog result of three-phase alternating current of adding the air conditioning control device 20A of pulse rectifier 30.The voltage waveform P of Fig. 5 is the DC voltage waveform measurement result with air conditioning control device 20A of pulse rectifier 30, and voltage waveform Q is the DC voltage waveform measurement result when adding pulse rectifier 30.
From these analog results and measurement result as can be known, by only adding pulse rectifier 30, the ripple of the direct voltage of supplying with converter main circuit 25 and the higher harmonic components of alternating current source side are reduced.
In the execution mode 1 shown in Figure 1, when pulse rectifier not being set, supply with the electric power of Driven Compressor motor 2 fully by main rectification circuit 23.Otherwise, when adding pulse rectifier 30, except that main rectification circuit 23, also supply with the driving electric of compressor electric motor 2, thereby the detection electric current of current transformer 27 diminishes from auxiliary rectifier circuit 33 and 34.
So, when adding pulse rectifier 30, must change current setting value, the detection current value that is used to be controlled to the current transformer 27 that the power supply side of main rectification circuit 23 is provided with is no more than limit value.
Therefore, present embodiment is structurally made: when pulse rectifier 30 is housed, make the EEPROM28A that writes the Control Parameter that comprises current limit value interchangeable, and this EEPROM28A of the big Control Parameter of write current set point is installed when not connecting pulse rectifier 30, and uses the EEPROM28A of the little Control Parameter of write current set point when connecting pulse rectifier.
Fig. 6 illustrates the threshold value of distinguishing restricted zone and conventional running district, before connecting pulse rectifier 30, when electric current is ascendant trend set point A is taken as limit value, when electric current is downward trend with set point B (＜A) be taken as limit value, and after connecting pulse rectifier, when electric current is ascendant trend with set point A ' (＜A) be taken as limit value, when electric current is downward trend with set point B ' (＜B) be taken as limit value.
So, connect pulse rectifier 30 before, the EEPROM28A that set point A and set point B are write as Control Parameter is installed; After connecting pulse rectifier 30, change the EEPROM28A that set point A ' and set point B ' are write as Control Parameter into.
Present embodiment has illustrated the composition of microcomputer 26A according to the Control Parameter control inverter main circuit 25 of the EEPROM28A that can exchange from peripheral operation, but this composition also can be: ROM that makes microcomputer 26A itself etc. has when comprising above-mentioned set point A, B and A ', B ', when promptly using the microcomputer of function with EEPROM28A, as shown in Figure 1, be arranged on the switch 28B of the front and back conversion on off operating mode that connects pulse rectifier 30, and switch above-mentioned set point according to the state of switch 28B.
Fig. 7 (a) is the stereogram of crucial portion that the off-premises station 40 of the air conditioning control device 20A when receiving dress and inserting pulse rectifier is shown, and Fig. 7 (b) is the stereogram that the installment state of terminal behind the front panel of inverter case 50 of inside that removal is contained in off-premises station 40 and cable etc. is shown.Among these figure, inverter case 50 and pulse rectifier case 60 are housed, and cover by side panel 41 in an end of off-premises station 40.
Side (lower end, right side of accompanying drawing) in side panel 41 lower ends installs line layout plate 41A, import three phase mains cable 42 and ground wire 43 by this plate 41A, be connected to inverter case 50, and then connect this inverter case 50 and pulse rectifier case 60 by DC power supply cable 45.The printed circuit board (PCB) 51 of the unit that constitutes DC-to-AC converter 22A shown in Figure 1 is housed in the inside of inverter case 50, power end daughter board 21, switch 28B and dc terminal daughter board 29 etc. also are installed in its underpart simultaneously.
At this moment, the power supply side of the power end daughter board of adorning at the rear board of inverter case 50 21 connects described three phase mains cable 42 and 44, and by three-phase internal wiring 46 the load side of this power end daughter board 21 is connected to printed circuit board (PCB) 51.With screw 53 ground wire 43 is fixed near the power end daughter board 21 the rear board with rib-loop.
Direct-flow input end daughter board 29 and switch 28A are installed in side at power end daughter board 21, and wherein the power supply side of direct-flow input end daughter board 29 connects DC power supply cable 45, and its load side is connected to printed circuit board (PCB) 51 by unshowned connecting line.
Make described three phase mains cable 42, ground wire 43, three phase mains cable 44 and DC power supply cable 45 by inverter case 50 side panel 54 and draw, three phase mains cable 42 is received unshowned three-phase alternating-current supply, ground wire 43 ground connection, three phase mains cable 44 and DC power supply cable 45 are received pulse rectifier case 60.
The switch 28B that is contained in the bottom of DC power supply cable 45 is not in " routine " position when establishing pulse rectifier 30, switch to the position of " 18P " when adding pulse rectifier 30.
Like this,, can provide air conditioning control device with versatility according to execution mode 1, can be without the high price device of active filter and so on, and connect also limiting AC input current reliably of multiple-pulse rectifier.
In the execution mode 1, also available wire jumper is handled, to replace being used to carry out the switch 28B of the action identical with exchanging EEPROM28A.The memories such as ROM that data are disappeared replace EEPROM, also can obtain effect same as described above.
Fig. 8 is the circuit diagram that the composition of embodiment of the present invention 2 is shown, among the figure with Fig. 1 that execution mode 1 is shown in the identical symbol of identical unit mark, omit its explanation.The DC-to-AC converter 22B of the formation air conditioning control device 20B here, its difference of forming with execution mode 1 is: remove EEPROM28A and switch 28B among Fig. 1, replace and be equipped with the voltage detecting function that comprises the output voltage that detects main rectification circuit 23, detect the connection detecting function that connects pulse rectifier 30 and the microcomputer 26B of above-mentioned parameter change function according to the detected value of this voltage detecting function and according to for example difference of the voltage waveform of Fig. 5.
By such composition, microcomputer 26B automatically surveys main rectification circuit 23 and connects pulse rectifiers 30, and uses the Control Parameter that current setting value A, B are transformed into current setting value A ', B ' to carry out the control identical with execution mode 1.Therefore, only needing does not need other manual operation at DC-to-AC converter 22B adjunction pulse rectifier, not only saves the advantage that labour but also parts are convenient to manage so obtain.
Like this,, can provide air conditioning control device with versatility according to execution mode 2, can be without the high price device of active filter and so on, and connect also limiting AC input current reliably of multiple-pulse rectifier.
Fig. 9 is the circuit diagram that the composition of embodiment of the present invention 3 is shown, among the figure with Fig. 1 that execution mode 1 is shown in the identical symbol of identical unit mark, omit its explanation.
The air conditioning control device here with 2 compressor electric motor 2A, 2B parallel connection, and is provided with 2 air conditioning control device 20A in freeze cycle, to drive these compressor electric motors 2A, 2B respectively.These two air conditioning control device 20A connect three-phase alternating-current supply 1 jointly, but the pulse rectifier 30 that direct-flow input end daughter board 29 is supplied with direct current power only is 1.
Consisting of of this pulse rectifier 30: have make to the leading three-phase alternating voltage of phase place carry out rectification auxiliary rectifier circuit 33 output and the output that the three-phase alternating voltage of phase lag carries out the auxiliary rectifier circuit 34 of rectification is exported independently of each other 4 road dc output end 36 of usefulness, with the air conditioning control device 20A of direct current output supply Driven Compressor motor 2A, the air conditioning control device 20A of Driven Compressor motor 2B is then supplied with in another direct current output.
Here, if compressor electric motor 2A and 2B driven in synchronism roughly, then compare with execution mode 1 shown in Figure 1, the current ripple of supplying with converter main circuit 25 slightly becomes greatly, but the higher harmonic components of AC power 1 side generation and execution mode 1 shown in Figure 1 are about equally.
According to inventor's etc. analog result as can be known, even the side of compressor electric motor 2A and 2B is turned round with high ability, the opposing party also can obtain and be similar to the characteristic that air conditioning control device 20A is provided with the composition of pulse rectifier 30 respectively with low ability running.
Like this,, can provide a kind of air conditioning control device according to execution mode 3, even if having the air conditioner of 2 air conditioning control device 20A, also can be without the high price device of active filter and so on, and can make use convenient.
(air conditioner)
Figure 10 is the circuit diagram that the composition of embodiment of the present invention 4 is shown.Among this figure, three-phase alternating-current supply 1 connects the air conditioning control device 10 of air conditioner, and this air conditioning control device 10 connects the motor (compressor electric motor hereinafter referred to as) 2 that drives the compressor that constitutes the air conditioner freeze cycle.The alternating voltage that air conditioning control device 10 has the power end daughter board 11 that connects three-phase alternating-current supply 1 usefulness, be transformed into changeable frequency with three-phase alternating voltage is supplied with the DC-to-AC converter 12 of compressor electric motor 2 and from the direct-flow input end daughter board 17 of the direct voltage of outside input multiple-pulse rectifier.
Wherein, the part of DC-to-AC converter 12 comprises the rectification circuit (hereinafter referred to as main rectification circuit, so that with the difference of other rectification circuit) 13 that a plurality of rectifier cells is connected into the three-phase bridge circuit and its input is connected to the load side of power end daughter board 11, connect the output of rectification circuit 13 respectively and make the level and smooth smmothing capacitor of pulsating current 14, DC converting after level and smooth is become the converter main circuit 15 of the interchange of changeable frequency, and constitute the switch element break-make of converter main circuit 15 to obtain the microcomputer 16 of regulation air-conditioning ability according to the controls such as each detected value of abridged current sensor and temperature sensor among the voltage of the output side of rectification circuit 13 and the figure.And, the load side of direct-flow input end daughter board 17 is connected to just (+) DC line and negative (-) DC line that connects rectification circuit 13 and converter main circuit 15.
The following describes the running of above-mentioned such execution mode that constitutes 4.Connect three-phase alternating-current supply 1 by power supply side, rectification circuit 13 is applied three-phase alternating voltage at power end daughter board 11.Rectification circuit 13 is with in addition full-wave rectification of three-phase alternating voltage, and output direct current (pulsating current), after the smoothed capacitor of this direct current 14 is level and smooth, supplies with converter main circuit 15.Microcomputer 16 is according to each detected value of abridged current sensor and temperature sensor among the voltage of the output side of rectification circuit 13, the figure etc., and control constitutes the break-make of the switch element of converter main circuit 15, to obtain regulation air-conditioning ability.Dc terminal daughter board 17 connects the multiple-pulse rectifier of hereinafter setting forth in its power supply side, and only connects the multiple-pulse rectifier when high order harmonic component is a problem, and is used to reduce current ripple and suppresses high order harmonic component.That is, when needs reduced high order harmonic component, air conditioning control device 10 itself does not add transformation just can connect the multiple-pulse rectifier.
Figure 11 is the circuit diagram that the composition example when using the multiple-pulse rectifier in the execution mode shown in Figure 10 4 is shown, and unit identical with Fig. 1 among the figure marks identical symbol, omits its explanation.Here, the part of multiple-pulse rectifier 30 comprises the power end daughter board 31 that the power supply side of the power end daughter board 11 that connects air conditioning control device 10 uses, by this power end daughter board 31 input three-phase alternating voltages and export respectively to the three-phase alternating voltages of leading about 40 degree of this three-phase alternating voltage phase place and phase lag about 40 the transformer 32 of three-phase alternating voltage, the three-phase alternating voltage that the phase place of this transformer 32 outputs is leading is the auxiliary rectifier circuit 33 of rectification in addition, with the three-phase alternating voltage of the phase lag of this transformer 32 outputs auxiliary rectifier circuit 34 of rectification in addition, and the dc output end daughter board 35 used of the power supply side that receives described direct-flow input end daughter board 17 after each the dc output end parallel connection with these auxiliary rectifier circuits 33 and 34.
The following describes the running of this multiple-pulse rectifier 30.As everyone knows, the output frequency of converter main circuit 15 is high more, and the ripple of the direct current of supply converter main circuit 15 is big more, and three-phase alternating-current supply 1 side's higher harmonic components is also big.The transformer 32 output sizes that constitute pulse rectifier 30 equal three-phase alternating voltage and the three-phase alternating voltage of leading about 40 degree of phase place and the three-phase alternating voltage of about 40 degree of phase lag of its input.
In these outputs, the leading three-phase alternating voltage of phase place is by in addition full-wave rectification of auxiliary rectifier circuit 33, and the three-phase alternating voltage of phase lag is by in addition full-wave rectification of auxiliary rectifier circuit 34.Because each lead-out terminal of auxiliary rectifier circuit 33 and 34 is by parallel connection, make up 2 DC component (pulsating current component), and supply with the DC current path that is connected converter main circuit 15 on the main rectification circuit 13 with direct-flow input end daughter board 17 by dc output end daughter board 35.Thus, the paddy of the ripple voltage that main rectification circuit 13 is exported is filled out and is not had.
In other words, auxiliary rectifier circuit 33 and 34 conductings are filled out no paddy of the ripple voltage of main rectification circuit 13 outputs.As a result, the direct voltage ripple of supplying with converter main circuit 15 reduces, and the higher harmonic components that power supply side occurs also reduces.
Figure 12 is the vertical view that the composition of multiple-pulse rectifier 39 is shown, and transformer 32 is the core type transformers with 3 pin iron cores, and the top yoke is equipped with the terminal board 36 of insulation.Terminal board 36 forms elongated along yoke, its two ends have the flat shape that bloats from the side end face of transformer 32.Installing power end daughter board 31 and dc output end daughter board 35 at vertical central portion of terminal board 36 is 5 extreme daughter boards of one comprehensively, connect three phase mains cable 44 on power supply square end corresponding, connect DC power supply cable 45 on load square end corresponding with dc output end daughter board 35 with power end daughter board 31.Auxiliary rectifier circuit 33 is installed in an end at terminal board 36, and auxiliary rectifier circuit 34 is installed in another end.
This auxiliary rectifier circuit 33 and 34 has 3 AC input terminals and 2 dc output end at top separately, the AC input terminal of auxiliary rectifier circuit 33 connects the leading three-phase alternating voltage coil of phase place, and the AC input terminal of auxiliary rectifier circuit 34 connects the three-phase alternating voltage coil of phase lag.Dc output end of auxiliary rectifier circuit 33 and 34 is connected in parallel on the power supply side of dc output end daughter board 35.Thus, constitute the multiple-pulse rectifier 30 that illustrates with Fig. 4.This multiple-pulse rectifier 30 is contained in the impulse commutation case 50 among Fig. 7.
Like this, in the time of need reducing high order harmonic component, the multiple-pulse rectifier of being made up of transformer and auxiliary rectifier only is installed on the outside terminal of air conditioner is got final product, can make air conditioner itself have versatility.
The rectification circuit that the main rectification circuit of common multiple-pulse rectifier adopts air conditioner itself to be provided with, thereby multiple-pulse rectification circuit side does not need main rectification circuit, the parts that can effectively utilize air conditioner to have originally.
On the other hand,, do not need three-phase alternating-current supply voltage former state is rectified into the main rectification circuit of direct current, can reduce component count as the multiple-pulse rectifier of use in refrigeration system.
In the execution mode 4 shown in Figure 10, the state that connects three-phase alternating-current supply 1 with connecting line applies high direct voltage continuously to each terminal that is in the direct-flow input end daughter board 17 under the state that is arranged on rear board that walks abreast like that shown in Fig. 7 (b), no matter whether multiple-pulse rectifier 30 is set.Exist the maintenance personal still ignorant and the danger of getting an electric shock takes place when running into because of carelessness.
As its countermeasure, Figure 13 pastes the attention language board 91 that is printed on " note high pressure, may get an electric shock, do not bump during energising " on the surface of direct-flow input end daughter board 17.Like this, pointing out terminal board by expression is "on" position, can prevent the electric shock state of affairs in possible trouble.
Figure 14 points out another composition example that portion of terminal is in the dangerous usefulness of "on" position, load side at direct-flow input end daughter board 17 connects DC wiring, power supply side is not laid under the state of wiring, connect energising alarm lamp 92 between the positive and negative terminal of power supply side, also paste the attention language board 91 that is printed on " note high pressure, switch on during lamp is bright " simultaneously at the lower region A of the power supply side of direct-flow input end daughter board 17 17a.Like this, can prevent the electric shock state of affairs in possible trouble.
Figure 15 is a composition example of actively eliminating Danger Electric shock risk, cover the terminal exposure of direct-flow input end daughter board 17 with safety guard 94, and paste and to be printed on the attention language board 91 of " noting high pressure; when connecting the equipment of selecting, do not dismantle safety guard " at the lower region A of the power supply side of direct-flow input end daughter board 17 17a.Thus, can get rid of the danger of electric shock substantially perfectly.
Like this, utilize above-mentioned execution mode 4, can obtain to have the air conditioner of versatility,, can only when high order harmonic component is a problem, connect the multiple-pulse rectifier according to the situation that is provided with of power consumption equipment.And, under the situation that does not need the multiple-pulse rectifier, also can fully guarantee its safety in utilization.
Figure 16 (a) is the summary composition diagram of embodiment of the present invention 5, and Figure 16 (b) is the vertical view that the summary composition of the multiple-pulse rectifier 20 that adds as optional part in this air conditioner is shown.Among these figure, the unit mark identical symbol identical with Fig. 6 with Fig. 1 that execution mode 1 is shown omits its explanation.Use connector, to replace constituting the direct-flow input end daughter board 17 of execution mode 1.At this moment, the docking point of female element 18A that constitutes a side of connector is connected to the DC channel that connects main rectification circuit 13 and converter main circuit 15, also it is included in the inside of the inverter case 50 (with reference to figure 7) of receiving dress DC-to-AC converter 12 simultaneously.
Also form on the structure on the docking point of the opposing party's who constitutes connector male element 18B and connect the DC power supply cable 45 of drawing from multiple-pulse rectifier 30, and when connecting multiple-pulse rectifier 30, the opposing party's male element 18B is imported the inside of air conditioning control device 10 (being inverter case 45), engage with a side female element 18A.
Form according to this, because a side's of connector member is contained in the inside of inverter case 50, compare when using direct-flow input end daughter board 17, not should be noted that the language board, seeking to form the easy while, fail safe can also further be provided.
Be taken as cloudy type owing to will become side's member of connector of the DC current path outside terminal of main rectification circuit 13 again, carry out connector when connecting operation, the operator is run into because of carelessness and get an electric shock, can carry out safe connection operation.
Like this, utilize above-mentioned execution mode 5, also can obtain to have the air conditioner of versatility,, can only when high order harmonic component is a problem, connect the multiple-pulse rectifier according to the situation that is provided with of power consumption equipment.And, under the situation that does not need the multiple-pulse rectifier, also can fully guarantee its safety in utilization.
Figure 17 is the summary composition diagram of embodiment of the present invention 6, wherein Figure 17 (a) is the circuit diagram that the inside composition of DC-to-AC converter 12 is shown, Figure 17 (b) is the stereogram of installment state that the master unit of the multiple-pulse rectifier that constitutes this DC-to-AC converter 12 is shown, and Figure 17 (c) is the vertical view of the multiple-pulse rectifier 30 that connects of DC-to-AC converter 12.
Among these figure, the various unit that constitute DC-to-AC converter 12 are contained on the printed circuit board (PCB) 60.And, erect oedoeagus 19p, the 19n that the shape setting tightens up terminal in an end of printed circuit board (PCB) 60, carry out printed circuit board wiring in the DC current path that connects main rectification circuit 13 and converter main circuit 15.
On the other hand, make the moon end 29P, the 29N that tightens up terminal in DC power supply cable 45 connections of drawing on the structure again from multiple-pulse rectifier 30.And when connecting multiple-pulse rectifier 30, the inside with the moon end 29P, the 29N that tightens up terminal imports air conditioning control device 10 (being inverter case 50) engages with the oedoeagus 19p, the 19n that tighten up terminal.
According to this structure, owing to tighten up the inside that oedoeagus 19p, the 19n of terminal are in inverter case 50, compare during with use direct-flow input end daughter board 17, not should be noted that the language board, when seeking to form simplification, can further improve fail safe.
Like this, utilize above-mentioned execution mode 6, also can obtain to have the air conditioner of versatility,, can only when high order harmonic component is a problem, connect the multiple-pulse rectifier according to the situation that is provided with of power consumption equipment.And, under the situation that does not need the multiple-pulse rectifier, also can fully guarantee its safety in utilization.
Described above the example tighten up terminal is set on printed circuit board (PCB), but also available connection and be fixed on screw terminal 19g on the printed circuit board (PCB) 60, as shown in figure 18.At this moment, the terminal of DC power supply cable 45 sides' leading section is circular terminal 29g, and this circular terminal 29g utilizes the screw 30g by its hole to be fixed among the screw terminal 19g with screw thread.
Figure 19 is the summary composition diagram of embodiment of the present invention 7, and wherein Figure 19 (a) is the vertical view that the detailed composition of multiple-pulse rectifier 30A is shown, and Figure 19 (b) illustrates the circuit diagram that the multiple-pulse rectifier is connected to the connection status of air conditioning control device 10.Unit identical with Fig. 6 with Fig. 1 that execution mode 1 is shown among the figure marks identical symbol, omits its explanation.
The multiple-pulse rectifier 30A of this execution mode is for the multiple-pulse rectifier 30 that constitutes the respective embodiments described above, the terminal board 36A that makes on the structure longitudinal extension is contained on the transformer 32, and power end daughter board 31A is installed in the end of its extension, the load end that connects power end daughter board 31 in the power supply side of terminal board 36A, at the load end of the power supply side link daughter board 36A of the power end daughter board 11 of air conditioning control device 10, and the power supply side of power end daughter board 31 is directly connected to three-phase alternating-current supply 1.
According to this structure, the internal wiring number of multiple-pulse rectifier 30A increases, get final product but the feed cable of three-phase alternating current connects a line on a terminal, thereby obtain multiple-pulse rectifier 30A interpolation, remove operation than the easy advantage of above-mentioned execution mode.Connecting line in this execution mode can adopt any method that illustrates in the above-mentioned execution mode to the connected mode of air conditioning control device 10.
Like this, utilize above-mentioned execution mode 7, also can obtain to have the air conditioner of versatility,, can only when high order harmonic component is a problem, connect the multiple-pulse rectifier according to the situation that is provided with of power consumption equipment.And, under the situation that does not need the multiple-pulse rectifier, also can fully guarantee its safety in utilization.
Above-mentioned execution mode 4 to 7 has illustrated the air conditioning control device of Driven Compressor motor.Yet, under the situation of large-size air conditioning machine, the motor that outdoor side's air blast actual air volume is big, power consumption is big.And, in order to make this air blast energy-conservation, utilize DC-to-AC converter to drive in recent years always.
Therefore, in this air conditioner, the also available certainly air conditioning control device that drives the motor of this air blast by DC-to-AC converter variable-ratio ground.
From above explanation as can be known,, can provide a kind of air conditioning control device with versatility according to the present invention, can be without the high price device of active filter and so on, and connect the multiple-pulse rectifier, also limiting AC input current reliably.
Utilize the present invention, a kind of air conditioner with versatility can be provided, can only when high order harmonic component is a problem, connect the multiple-pulse rectifier.And, the use in refrigeration system multiple-pulse rectifier of suitable this air conditioner can be provided.
Claims (8)
1, a kind of air conditioning control device comprises
To the three-phase alternating voltage of accepting from three-phase alternating-current supply carry out rectification rectification circuit,
With the output transform of described rectification circuit become the alternating voltage of changeable frequency supply with the converter main circuit of the motor that drives the compressor that forms freeze cycle,
Detect described rectification circuit input current current sensor and
Described converter main circuit is controlled to the inverter control unit that the current value that when load changes the ability of described compressor according to air-conditioning described current sensor senses is gone out is no more than setting, it is characterized in that,
Has the parameter change unit, but so that adjunction multiple-pulse rectifier, after the three-phase alternating voltage of the described three-phase alternating-current supply of input and output exported in addition rectification to the three-phase alternating voltage of the transformer of the three-phase alternating voltage of the phase place of this three-phase alternating voltage deviation predetermined angular, supply with the output of described rectification circuit, and when described rectification circuit connects described multiple-pulse rectifier, change the Control Parameter of described inverter control unit, make described current setting value reduce setting.
2, air conditioning control device as claimed in claim 1 is characterized in that,
Described inverter control unit has
Comprise the output voltage that detects described rectification circuit voltage detection unit,
According to the detected value of described voltage detection unit detect described rectification circuit connect described multiple-pulse rectifier the connection probe unit and
The microcomputer of described parameter change unit,
Described microcomputer detects described rectification circuit automatically and connects described multiple-pulse rectifier, and the change Control Parameter corresponding with described current setting value.
3, air conditioning control device as claimed in claim 1 is characterized in that,
Described parameter change unit can be formed from the nonvolatile memory that peripheral operation is exchanged by the storage Control Parameter corresponding with described current setting value and when described rectification circuit connects described multiple-pulse rectifier,
Described inverter control unit is made up of the microcomputer of controlling described converter main circuit according to the Control Parameter of described nonvolatile memory.
4, air conditioning control device as claimed in claim 1 is characterized in that,
Have described rectification circuit and can switch the switch element of on off operating mode or form the wire jumper of conducting state by peripheral operation when connecting described multiple-pulse rectifier,
Described inverter control unit goes out by comprising state detection according to described switch element or wire jumper that described rectification circuit connects the connection probe unit of described multiple-pulse rectifier and the microcomputer of described parameter change unit is formed.
5, a kind of air conditioning control device comprises
To the three-phase alternating voltage of accepting from three-phase alternating-current supply carry out rectification rectification circuit,
With the output transform of described rectification circuit become the alternating voltage of changeable frequency supply with the converter main circuit of the motor that drives the compressor that forms freeze cycle,
Detect described rectification circuit input current current sensor and
Described converter main circuit is controlled to the inverter control unit that the current value that when load changes the ability of described compressor according to air-conditioning described current sensor senses is gone out is no more than setting, it is characterized in that,
Has the parameter change unit, but so that adjunction multiple-pulse rectifier, after the three-phase alternating voltage of the described three-phase alternating-current supply of input and output exported in addition rectification to each three-phase alternating voltage of the transformer of the 2nd three-phase alternating voltage of the phase place of the 1st three-phase alternating voltage of the phase place of the leading predetermined angular of this three-phase alternating voltage and the predetermined angular that lags, supply with the output of described rectification circuit
And when described rectification circuit connects described multiple-pulse rectifier, change the Control Parameter of described inverter control unit, make described current setting value reduce setting.
6, air conditioning control device as claimed in claim 5 is characterized in that,
Described inverter control unit has
Comprise the output voltage that detects described rectification circuit voltage detection unit,
According to the detected value of described voltage detection unit detect described rectification circuit connect described multiple-pulse rectifier the connection probe unit and
The microcomputer of described parameter change unit,
Described microcomputer detects described rectification circuit automatically and connects described multiple-pulse rectifier, and the change Control Parameter corresponding with described current setting value.
7, air conditioning control device as claimed in claim 5 is characterized in that,
Described parameter change unit can be formed from the nonvolatile memory that peripheral operation is exchanged by the storage Control Parameter corresponding with described current setting value and when described rectification circuit connects described multiple-pulse rectifier,
Described inverter control unit is made up of the microcomputer of controlling described converter main circuit according to the Control Parameter of described nonvolatile memory.
8, air conditioning control device as claimed in claim 5 is characterized in that,
Have described rectification circuit and can switch the switch element of on off operating mode or form the wire jumper of conducting state by peripheral operation when connecting described multiple-pulse rectifier,
Described inverter control unit goes out by comprising state detection according to described switch element or wire jumper that described rectification circuit connects the connection probe unit of described multiple-pulse rectifier and the microcomputer of described parameter change unit is formed.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP018289/2003 | 2003-01-28 | ||
| JP2003018289A JP4330347B2 (en) | 2003-01-28 | 2003-01-28 | Air conditioning controller |
| JP032620/2003 | 2003-02-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1742425A CN1742425A (en) | 2006-03-01 |
| CN100466441C true CN100466441C (en) | 2009-03-04 |
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ID=33111962
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800027808A Expired - Fee Related CN100466441C (en) | 2003-01-28 | 2004-01-27 | Air-conditioner controller |
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| Country | Link |
|---|---|
| JP (1) | JP4330347B2 (en) |
| CN (1) | CN100466441C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010110056A (en) * | 2008-10-28 | 2010-05-13 | Panasonic Electric Works Co Ltd | Power distribution system |
| EP3462591A1 (en) * | 2017-09-29 | 2019-04-03 | Siemens Aktiengesellschaft | Modular converter and modular converter system |
| CN113680530B (en) * | 2020-05-18 | 2024-04-26 | 广东美的制冷设备有限公司 | Air purification device, air purification control method, power supply device, and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05172373A (en) * | 1991-12-24 | 1993-07-09 | Toshiba Corp | Printed wiring board for air conditioner |
| JPH08285331A (en) * | 1995-04-11 | 1996-11-01 | Daikin Ind Ltd | Structure of wiring |
| JPH09140151A (en) * | 1995-11-16 | 1997-05-27 | Sanyo Electric Co Ltd | Inverter controller |
| JPH09261962A (en) * | 1996-03-26 | 1997-10-03 | Yaskawa Electric Corp | Six-phase/twelve-phase rectifier-type inverter device |
| JP2002010646A (en) * | 2000-06-15 | 2002-01-11 | Toshiba Corp | Rectifier and transformer |
-
2003
- 2003-01-28 JP JP2003018289A patent/JP4330347B2/en not_active Expired - Fee Related
-
2004
- 2004-01-27 CN CNB2004800027808A patent/CN100466441C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05172373A (en) * | 1991-12-24 | 1993-07-09 | Toshiba Corp | Printed wiring board for air conditioner |
| JPH08285331A (en) * | 1995-04-11 | 1996-11-01 | Daikin Ind Ltd | Structure of wiring |
| JPH09140151A (en) * | 1995-11-16 | 1997-05-27 | Sanyo Electric Co Ltd | Inverter controller |
| JPH09261962A (en) * | 1996-03-26 | 1997-10-03 | Yaskawa Electric Corp | Six-phase/twelve-phase rectifier-type inverter device |
| JP2002010646A (en) * | 2000-06-15 | 2002-01-11 | Toshiba Corp | Rectifier and transformer |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4330347B2 (en) | 2009-09-16 |
| JP2004263882A (en) | 2004-09-24 |
| CN1742425A (en) | 2006-03-01 |
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