CN102345915B - Fault operation control method of DC (direct current) convertible frequency air conditioner - Google Patents
Fault operation control method of DC (direct current) convertible frequency air conditioner Download PDFInfo
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- CN102345915B CN102345915B CN2011102191620A CN201110219162A CN102345915B CN 102345915 B CN102345915 B CN 102345915B CN 2011102191620 A CN2011102191620 A CN 2011102191620A CN 201110219162 A CN201110219162 A CN 201110219162A CN 102345915 B CN102345915 B CN 102345915B
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Abstract
The invention discloses a fault operation control method of a DC (direct current) convertible frequency air conditioner, which comprises the following concrete steps of: (1) carrying out classification on a fault and protection of the existing DC convertible frequency air conditioner; and (2) judging whether an air conditioning unit has the fault or not, i.e. starting and operating the air conditioning unit, carrying out fault judgment in the operating process, continuously operating the air conditioning unit if the air conditioning unit has no fault, and carrying out shutdown or entering a corresponding fault operation mode according to the grade of the fault if the air conditioning unit has the fault. In the control method, the air conditioning unit operates with the fault on the premise of no malignant fault and the fault problem is solved after work.
Description
Technical field
The present invention relates to the DC frequency converting air-conditioner technical field, is specifically a kind of failure operation control method of DC frequency converting air-conditioner.
Background technology
DC inverter air-conditioner is in order to guarantee that the air-conditioning unit is normal and to move reliably, particularly air-conditioning system is effectively protected, in the control software of air-conditioning unit, increase many safeguard measures, as: the excessive discharge temperature protection, the too low protection of suction temperature, high voltage protective, low-voltage variation, overcurrent protection, overvoltage/under-voltage protection, module protection, the anti-freeze protection, outdoor coil pipe used temperature protection, the outdoor environment temperature protection, the indoor coil pipe protection, the indoor environment temperature protection, the press machine starts unsuccessfully protection, the driver module abnormal protection, the protection of PFC operation irregularity, the indoor fan abnormal protection, the outdoor fan abnormal protection, etc..For DC frequency converting air-conditioner, round-the-clock running throughout the year, the outdoor working condition of operation changes widely different, changes also more sharply.Adding, the hardware of air-conditioning system, particularly electric components, occur agingly, and functional inefficacy, appear in or other reason.Therefore, to break down be inevitable thing to air-conditioning system.
At present, in order to protect the air-conditioning unit reliability, the protectiveness shutdown often can occur because of the protection factor, during particularly just needing the working of air-conditioning effect, air-conditioning is shut down the working environment that must affect the working period.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of and do not occur operating with failure under pernicious fault prerequisite at the air-conditioning unit, until the failure operation control method of the DC frequency converting air-conditioner of handling failure problem more After Hours.
Technical scheme of the present invention is, a kind of failure operation control method with DC frequency converting air-conditioner of following steps is provided, and comprises following concrete steps:
(1), classification is carried out in the fault and the protection that existing DC frequency converting air-conditioner are occurred;
(2), judge whether the air-conditioning unit has fault:
The operation of air-conditioning unit starting, in running, carry out the fault judgement: if fault-free, the air-conditioning unit continues operation; If the air-conditioning unit breaks down, according to the fault rank, shut down or enter the pattern that operates with failure accordingly;
The failure operation control method of described DC frequency converting air-conditioner is characterized in that: fault and protection that existing DC frequency converting air-conditioner occurs carried out to classification, is set as 1 grade to 22 grades, and totally 22 rank faults, distinguish as follows:
1 grade of fault: driven compressor module fault;
2 grades of faults: compressor operating is abnormal or start unsuccessfully;
3 grades of faults: outside control panel and driven compressor module communication fault;
4 grades of faults: outdoor fan fault;
5 grades of faults: outside control panel and indoor control panel communication failure;
6 grades of faults: indoor set anti-freeze;
7 grades of faults: excessive discharge temperature;
8 grades of faults: overheat of compressor fault;
9 grades of faults: outdoor EEPROM fault;
10 grades of faults: outdoor input current sensor fault;
11 grades of faults: outdoor input ac voltage sensor fault;
12 grades of faults: input side overcurrent protection;
13 grades of faults: input side interchange overvoltage/under-voltage;
14 grades of faults: exhaust gas temperature sensor short circuit/open circuit fault;
15 grades of faults: outdoor environment temperature short circuit sensor/open circuit fault;
16 grades of faults: outdoor coil pipe used temperature sensor short circuit/open circuit fault;
17 grades of faults: outdoor coil pipe used overtemperature;
18 grades of faults: suction temperature sensor fault;
19 grades of faults: the too low fault of suction temperature;
20 grades of faults: indoor environment temperature sensor fault;
21 grades of faults: indoor coil pipe sensor fault;
22 grades of faults: indoor coil overtemperature;
Shutdown described in described step (two) refers to, whether such fault the main core component of grievous injury, or such fault causes the air-conditioning unit to move; If so, and the fault rank is one of them in 1 grade to 5 grades fault, hard stop, and show failure code;
The pattern of operating with failure accordingly that enters described in described step (two) refers to, enters corresponding failure operation pattern according to different fault ranks:
Step (1): if 6 grades of faults, i.e. indoor set anti-freeze,
Indoor coil pipe is carried out to subregion: a-quadrant: indoor coil pipe<-5 ℃;
B zone :-5 ℃≤indoor coil pipe<4 ℃;
C zone: 4 ℃≤indoor coil pipe≤5 ℃;
The D zone: indoor coil pipe is in rising edge, and indoor coil pipe >=8 ℃;
A-quadrant: when indoor coil pipe<-5 ℃, and during lasting 30s, carry out the anti-freeze stoppage protection, now, and compressor shutdown, outdoor fan stops, and indoor fan is running as usual;
The D zone: after anti-freeze protection is shut down, and when indoor coil pipe rise to >=8 ℃ the time, compressor releasing anti-freeze frequency limitation;
B zone: when indoor coil pipe<4 ℃, carry out antifreeze frequency reducing, frequency reducing speed 8Hz/30s; If in the frequency reducing process, still be in the B district, continue frequency reducing, until minimum running frequency 30Hz; Anti-freeze frequency reducing condition subsequent: indoor coil pipe is raised to >=8 ℃ after, remove the anti-freeze frequency reducing;
The C zone: anti-freeze is forbidden the raising frequency state, and compressor maintains current frequency, but frequency reducing, but can not raising frequency;
Anti-freeze is forbidden the raising frequency condition subsequent: behind indoor coil pipe >=8 ℃, remove anti-freeze and forbid the raising frequency state;
Step (2): if 7 grades of faults, i.e. excessive discharge temperature,
Invariable frequency compressor: when invariable frequency compressor delivery temperature >=105 ℃, continue 10s, stop invariable frequency compressor; In the 3min standby, and during invariable frequency compressor delivery temperature≤90 ℃, invariable frequency compressor restarts; Continuous 3 excessive discharge temperature protection in 60min, stopping alarm, and the start that need to again manually power on;
Frequency-changeable compressor:
When 90 ℃<frequency-changeable compressor delivery temperature≤95 ℃, raising frequency at a slow speed, raising frequency speed 1Hz/10s;
When 95 ℃<frequency-changeable compressor delivery temperature≤98 ℃, keep current running frequency;
When 98 ℃<frequency-changeable compressor delivery temperature≤100 ℃, frequency reducing at a slow speed, frequency reducing speed 1Hz/10s;
When 100 ℃<frequency-changeable compressor delivery temperature≤102 ℃, frequency reducing fast, frequency reducing speed 1Hz/s;
When 102 ℃<frequency-changeable compressor delivery temperature<105 ℃, frequency reducing fast, frequency reducing speed 2Hz/s;
When frequency-changeable compressor delivery temperature >=105 ℃, continue 10s, shut down; After the 3min standby, restart continuous 3 excessive discharge temperature protection in 60min, stopping alarm, and the start that need to again manually power on;
Step (3): if 8 grades of faults, i.e. overheat of compressor fault,
When compressor case temperature switch>130 ℃ disconnect, hard stop, and show malfunction;
When compressor case temperature switch<100 ℃, recover, compressor, after the 3min standby, reopens;
Step (4): if 9 grades of faults, i.e. outdoor EEPROM fault,
Take to arrange two kinds of EEPROM, a kind of is the EEPROM be built in chip program, and the setting of air-conditioning unit operational factor is the value of determining after debugging, and parameter by default; Another kind is external EEPROM;
When the air-conditioning unit powers on start, read external EEPROM, if read continuous 3 failures of external EEPROM, proceed to and read built-in EEPROM, the air-conditioning unit operates with failure according to the default parameters in built-in EEPROM, and shows failure code;
Step (5): if 10 grades of faults, i.e. outdoor input current sensor fault, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (6): if 11 grades of faults, i.e. outdoor input ac voltage sensor fault, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (7): if 12 grades of faults, i.e. input side overcurrent protection, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (8): if 13 grades of faults, i.e. input side interchange overvoltage/under-voltage, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (9): if 14 grades of faults, i.e. exhaust gas temperature sensor short circuit/open circuit fault,
If while 8 grades of faults not occurring, DC frequency-changeable compressor starts frequency reducing operation, frequency reducing speed 5Hz/5min;
While if 8 grades of faults occurring, DC frequency-changeable compressor starts the frequency reducing operation, and frequency reducing speed is brought up to 5Hz/2min;
When the DC frequency-changeable compressor running frequency was reduced to the minimum operation frequency, 5min detected 14 grades of faults continuously; If 14 grades of faults exist always, and 8 grades of also existence always of faults, shut down, after 10min, start shooting again, under minimum operation frequency 30Hz, move;
Step (10): if 15 grades of faults, i.e. outdoor environment temperature short circuit sensor/open circuit fault,
The control relevant to outdoor environment temperature is controlled according to the failure operation pattern:
A. the value of the limit value A in the calculating of indoor unit capability demand percentage is 100%;
When B. heating mode moved, the target degree of superheat value that heats main electric expansion valve was 2 ℃;
When C. refrigeration mode moved, subcooler electronic expansion valve controls pattern was controlled according to the delivery temperature control mode;
When D. refrigeration mode moved, the control of outdoor fan motor, controlled according to outdoor coil pipe used temperature, and do not judge outdoor environment temperature;
When E. heating mode moved, the control of outdoor fan motor, controlled according to the defrosting temperature, and do not judge outdoor environment temperature;
When F. refrigeration mode moves, 0 ℃ of indoor target evaporating temperature stuck-at-１;
Step (11): if 16 grades of faults--outdoor coil pipe used temperature sensor short circuit/open circuit fault,
A. heat the start cross valve and ensure that in running, the successful decision condition of cross valve commutation is adjusted into the condition under malfunction, if that is: cross valve power on after Compressor Inlet Temperature deduct outdoor environment temperature and be less than 6 ℃, and the compressor exhaust temperature started all is greater than 30 ℃, and lasting 3s, think that the cross valve commutation puts in place;
B. during the refrigerating operaton pattern, the control mode when the cold control mode of the mistake of subcooler electronic expansion valve opening is adjusted into fault mode, that is:
When the mean temperature of subcooler outlet temperature<indoor coil middle part, subcooler electronic expansion valve opening variable quantity=2 * (subcooler outlet temperature-indoor coil middle part mean temperature);
When subcooler outlet temperature >=indoor coil middle part mean temperature, subcooler electronic expansion valve opening variable quantity=subcooler outlet temperature-indoor coil middle part mean temperature;
When C. refrigeration mode moved, the rotating speed of outdoor fan motor was forced according to 5 grades of operations;
D. in refrigeration mode when operation,, when the frequency-changeable compressor running frequency during lower than specified running frequency 60Hz, by current running frequency operation; During higher than 60Hz, running frequency is down to 60Hz when the frequency-changeable compressor running frequency;
Step (12): if 17 grades of faults, outdoor coil pipe used overtemperature,
During heating mode, outdoor coil pipe used overtemperature prote is invalid, and only when refrigeration mode moved, outdoor coil pipe used overtemperature prote was just effective;
When 56 ℃<outdoor coil pipe used temperature≤58 ℃, the DC frequency-changeable compressor raising frequency, raising frequency speed is 1Hz/10s;
When 58 ℃<outdoor coil pipe used temperature≤59 ℃, DC frequency-changeable compressor keeps current frequency operation;
When 59 ℃<outdoor coil pipe used temperature≤62 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 1Hz/10s;
When 62 ℃<outdoor coil pipe used temperature≤63 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 1Hz/s;
When 63 ℃<outdoor coil pipe used temperature≤65 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 2Hz/s;
When outdoor coil pipe used temperature>65 ℃, while continuing 10s, the air-conditioning unit is directly shut down, after standby in 3 minutes, restart, and continuous 3 outdoor coil pipe used overtemperature protes in 60 minutes, stopping alarm, can cancel after re-powering;
Step (13): if 18 grades of faults, i.e. suction temperature sensor fault,
A. heat the decision condition shielding Rule of judgment relevant to suction temperature that the start cross valve ensures that in running, the cross valve commutation is successful, that is: after cross valve powers on, if outdoor coil pipe used temperature deducts outdoor environment temperature lower than 0 ℃, and the delivery temperature of the compressor started all is greater than 30 ℃, and lasting 3s, think that the cross valve commutation puts in place;
When B. heating mode moved, the control that heats main electronic expansion valve opening was controlled according to indoor unit capability demand percentage:
When indoor unit capability demand percentage<50%, heat main electronic expansion valve opening=150～200 steps;
When 50%≤indoor unit capability demand percentage<75%, heat main electronic expansion valve opening=200～250 steps;
When indoor unit capability demand percentage >=75%, heat main electronic expansion valve opening=250～350 steps;
Step (14): if 19 grades of faults, the i.e. too low fault of suction temperature: in direct-current variable-frequency multi-connection machine normal course of operation, if suction temperature is too low, carry out following protection:
When 3 ℃≤suction temperature<4 ℃, DC frequency-changeable compressor raising frequency, raising frequency speed 1Hz/10s;
When 2 ℃≤suction temperature<3 ℃, DC frequency-changeable compressor keeps current running frequency;
When 0 ℃≤suction temperature<2 ℃, DC frequency-changeable compressor frequency reducing, frequency reducing speed 1Hz/10s;
When-3 ℃≤suction temperature<0 ℃, DC frequency-changeable compressor frequency reducing, frequency reducing speed 1Hz/s;
When suction temperature<-3 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed 2Hz/s, and open the unloading magnetic valve between high and low pressure side, to improve the low-pressure side temperature;
When suction temperature >=4 ℃, the DC frequency-changeable compressor running frequency is recovered normal regulating;
Step (15): if 20 grades of faults, the indoor environment temperature sensor fault
Indoor unit capability demand percentage calculates in the following way: in the front 40min after the start of air-conditioning unit, indoor unit capability demand percentage calculates by 130%; In 20min afterwards, indoor unit capability demand percentage calculates by 100%; After this, in each computing cycle, by the rate reduction indoor unit capability demand percentage of 10%/20min, until be down to 50%, and be maintained to the shutdown maintenance of coming off duty;
Step (16): if 21 grades of faults, the indoor coil pipe sensor fault,
During the refrigeration mode operation, the indoor coil pipe sensor fault does not affect the air-conditioning unit operation;
During the heating mode operation, the electronic expansion valve opening of start indoor set is fixed on 350～450 steps;
During the heating mode operation, the air-conditioning unit is opened in the front 60min of operation, according to the on off control of normal adjusting mode tuning DC frequency-changeable compressor running frequency and invariable frequency compressor;
Heating mode when operation, after air-conditioning unit start operation 60min, if running frequency higher than 60Hz, running frequency reduces, frequency reducing speed is 10Hz/20min, until running frequency is down to 60Hz, and maintains operation; When running frequency during lower than 60Hz, by current frequency operation;
Step (17): if 22 grades of faults, the indoor coil overtemperature,
The indoor coil overtemperature prote is effective when air-conditioning unit heating operation,
After compressor operation, detect indoor coil pipe, when 60 ℃≤indoor coil pipe<65 ℃, and continue 5 seconds, indoor set sends on indoor unit capability demand percentage and is limited to 30% to off-premises station, until indoor coil pipe<56 ℃, and continue to cancel after 3 seconds the restriction of indoor unit capability demand percentage;
When indoor coil pipe >=65 ℃; and continuous 10 seconds; indoor set is 12% to off-premises station transmission indoor unit capability demand percentage; indoor fan and electric expansion valve are by warm shutdown mode, moving; until indoor coil pipe<52 ℃; and continue 3 seconds, return to normal control, indoor fan and electronic expansion valve controls return to the front state of indoor coil overtemperature prote that enters.
After adopting above structure, the present invention compared with prior art, have the following advantages: the fault by DC frequency converting air-conditioner is classified, being the air-conditioning unit operates with failure under pernicious fault (as compressor, control panel, condenser, evaporimeter and throttle part etc.) prerequisite not occurring, until handling failure problem more After Hours, ensure so normal air-conditioning effect during working, avoid affecting the working environment of working period.
The specific embodiment
Below the failure operation control method of DC frequency converting air-conditioner of the present invention is described further.
The failure operation control method of DC frequency converting air-conditioner of the present invention comprises following concrete steps: classification is carried out in (one), fault and protection that existing DC frequency converting air-conditioner is occurred;
(2), judge whether the air-conditioning unit has fault:
The operation of air-conditioning unit starting, in running, carry out the fault judgement: if fault-free, the air-conditioning unit continues operation; If the air-conditioning unit breaks down, according to the fault rank, shut down or enter the pattern that operates with failure accordingly;
The failure operation control method of described DC frequency converting air-conditioner is characterized in that: fault and protection that existing DC frequency converting air-conditioner occurs carried out to classification, is set as 1 grade to 22 grades, and totally 22 rank faults, distinguish as follows:
1 grade of fault: driven compressor module fault;
2 grades of faults: compressor operating is abnormal or start unsuccessfully;
3 grades of faults: outside control panel and driven compressor module communication fault;
4 grades of faults: outdoor fan fault;
5 grades of faults: outside control panel and indoor control panel communication failure;
6 grades of faults: indoor set anti-freeze;
7 grades of faults: excessive discharge temperature;
8 grades of faults: overheat of compressor fault;
9 grades of faults: outdoor EEPROM fault;
10 grades of faults: outdoor input current sensor fault;
11 grades of faults: outdoor input ac voltage sensor fault;
12 grades of faults: input side overcurrent protection;
13 grades of faults: input side interchange overvoltage/under-voltage;
14 grades of faults: exhaust gas temperature sensor short circuit/open circuit fault;
15 grades of faults: outdoor environment temperature short circuit sensor/open circuit fault;
16 grades of faults: outdoor coil pipe used temperature sensor short circuit/open circuit fault;
17 grades of faults: outdoor coil pipe used overtemperature;
18 grades of faults: suction temperature sensor fault;
19 grades of faults: the too low fault of suction temperature;
20 grades of faults: indoor environment temperature sensor fault;
21 grades of faults: indoor coil pipe sensor fault;
22 grades of faults: indoor coil overtemperature;
Shutdown described in described step (two) refers to, whether such fault the main core component of grievous injury, or such fault causes the air-conditioning unit to move; If so, and the fault rank is one of them in 1 grade to 5 grades fault, hard stop, and show failure code;
The pattern of operating with failure accordingly that enters described in described step (two) refers to, enters corresponding failure operation pattern according to different fault ranks:
Step (1): if 6 grades of faults, i.e. indoor set anti-freeze,
Indoor coil pipe is carried out to subregion: a-quadrant: indoor coil pipe<-5 ℃;
B zone :-5 ℃≤indoor coil pipe<4 ℃;
C zone: 4 ℃≤indoor coil pipe≤5 ℃;
The D zone: indoor coil pipe is in rising edge, and indoor coil pipe >=8 ℃;
A-quadrant: when indoor coil pipe<-5 ℃, and during lasting 30s, carry out the anti-freeze stoppage protection, now, and compressor shutdown, outdoor fan stops, and indoor fan is running as usual;
The D zone: after anti-freeze protection is shut down, and when indoor coil pipe rise to >=8 ℃ the time, compressor releasing anti-freeze frequency limitation;
B zone: when indoor coil pipe<4 ℃, carry out antifreeze frequency reducing, frequency reducing speed 8Hz/30s; If in the frequency reducing process, still be in the B district, continue frequency reducing, until minimum running frequency 30Hz; Anti-freeze frequency reducing condition subsequent: indoor coil pipe is raised to >=8 ℃ after, remove the anti-freeze frequency reducing;
The C zone: anti-freeze is forbidden the raising frequency state, and compressor maintains current frequency, but frequency reducing, but can not raising frequency;
Anti-freeze is forbidden the raising frequency condition subsequent: behind indoor coil pipe >=8 ℃, remove anti-freeze and forbid the raising frequency state;
Step (2): if 7 grades of faults, i.e. excessive discharge temperature,
Invariable frequency compressor: when invariable frequency compressor delivery temperature >=105 ℃, continue 10s, stop invariable frequency compressor; In the 3min standby, and during invariable frequency compressor delivery temperature≤90 ℃, invariable frequency compressor restarts; Continuous 3 excessive discharge temperature protection in 60min, stopping alarm, and the start that need to again manually power on;
Frequency-changeable compressor:
When 90 ℃<frequency-changeable compressor delivery temperature≤95 ℃, raising frequency at a slow speed, raising frequency speed 1Hz/10s;
When 95 ℃<frequency-changeable compressor delivery temperature≤98 ℃, keep current running frequency;
When 98 ℃<frequency-changeable compressor delivery temperature≤100 ℃, frequency reducing at a slow speed, frequency reducing speed 1Hz/10s;
When 100 ℃<frequency-changeable compressor delivery temperature≤102 ℃, frequency reducing fast, frequency reducing speed 1Hz/s;
When 102 ℃<frequency-changeable compressor delivery temperature<105 ℃, frequency reducing fast, frequency reducing speed 2Hz/s;
When frequency-changeable compressor delivery temperature >=105 ℃, continue 10s, shut down; After the 3min standby, restart continuous 3 excessive discharge temperature protection in 60min, stopping alarm, and the start that need to again manually power on;
Step (3): if 8 grades of faults, i.e. overheat of compressor fault,
When compressor case temperature switch>130 ℃ disconnect, hard stop, and show malfunction;
When compressor case temperature switch<100 ℃, recover, compressor, after the 3min standby, reopens;
Step (4): if 9 grades of faults, i.e. outdoor EEPROM fault,
Take to arrange two kinds of EEPROM, a kind of is the EEPROM be built in chip program, and the setting of air-conditioning unit operational factor is the value of determining after debugging, and parameter by default; Another kind is external EEPROM;
When the air-conditioning unit powers on start, read external EEPROM, if read continuous 3 failures of external EEPROM, proceed to and read built-in EEPROM, the air-conditioning unit operates with failure according to the default parameters in built-in EEPROM, and shows failure code;
Step (5): if 10 grades of faults, i.e. outdoor input current sensor fault, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (6): if 11 grades of faults, i.e. outdoor input ac voltage sensor fault, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (7): if 12 grades of faults, i.e. input side overcurrent protection, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (8): if 13 grades of faults, i.e. input side interchange overvoltage/under-voltage, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (9): if 14 grades of faults, i.e. exhaust gas temperature sensor short circuit/open circuit fault,
If while 8 grades of faults not occurring, DC frequency-changeable compressor starts frequency reducing operation, frequency reducing speed 5Hz/5min;
While if 8 grades of faults occurring, DC frequency-changeable compressor starts the frequency reducing operation, and frequency reducing speed is brought up to 5Hz/2min;
When the DC frequency-changeable compressor running frequency was reduced to the minimum operation frequency, 5min detected 14 grades of faults continuously; If 14 grades of faults exist always, and 8 grades of also existence always of faults, shut down, after 10min, start shooting again, under minimum operation frequency 30Hz, move;
Step (10): if 15 grades of faults, i.e. outdoor environment temperature short circuit sensor/open circuit fault,
The control relevant to outdoor environment temperature is controlled according to the failure operation pattern:
A. the value of the limit value A in the calculating of indoor unit capability demand percentage is 100%;
When B. heating mode moved, the target degree of superheat value that heats main electric expansion valve was 2 ℃;
When C. refrigeration mode moved, subcooler electronic expansion valve controls pattern was controlled according to the delivery temperature control mode;
When D. refrigeration mode moved, the control of outdoor fan motor, controlled according to outdoor coil pipe used temperature, and do not judge outdoor environment temperature;
When E. heating mode moved, the control of outdoor fan motor, controlled according to the defrosting temperature, and do not judge outdoor environment temperature;
When F. refrigeration mode moves, 0 ℃ of indoor target evaporating temperature stuck-at-１;
Step (11): if 16 grades of faults--outdoor coil pipe used temperature sensor short circuit/open circuit fault,
A. heat the start cross valve and ensure that in running, the successful decision condition of cross valve commutation is adjusted into the condition under malfunction, if that is: cross valve power on after Compressor Inlet Temperature deduct outdoor environment temperature and be less than 6 ℃, and the compressor exhaust temperature started all is greater than 30 ℃, and lasting 3s, think that the cross valve commutation puts in place;
B. during the refrigerating operaton pattern, the control mode when the cold control mode of the mistake of subcooler electronic expansion valve opening is adjusted into fault mode, that is:
When the mean temperature of subcooler outlet temperature<indoor coil middle part, subcooler electronic expansion valve opening variable quantity=2 * (subcooler outlet temperature-indoor coil middle part mean temperature);
When subcooler outlet temperature >=indoor coil middle part mean temperature, subcooler electronic expansion valve opening variable quantity=subcooler outlet temperature-indoor coil middle part mean temperature;
When C. refrigeration mode moved, the rotating speed of outdoor fan motor was forced according to 5 grades of operations;
D. in refrigeration mode when operation,, when the frequency-changeable compressor running frequency during lower than specified running frequency 60Hz, by current running frequency operation; During higher than 60Hz, running frequency is down to 60Hz when the frequency-changeable compressor running frequency;
Step (12): if 17 grades of faults, outdoor coil pipe used overtemperature,
During heating mode, outdoor coil pipe used overtemperature prote is invalid, and only when refrigeration mode moved, outdoor coil pipe used overtemperature prote was just effective;
When 56 ℃<outdoor coil pipe used temperature≤58 ℃, the DC frequency-changeable compressor raising frequency, raising frequency speed is 1Hz/10s;
When 58 ℃<outdoor coil pipe used temperature≤59 ℃, DC frequency-changeable compressor keeps current frequency operation;
When 59 ℃<outdoor coil pipe used temperature≤62 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 1Hz/10s;
When 62 ℃<outdoor coil pipe used temperature≤63 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 1Hz/s;
When 63 ℃<outdoor coil pipe used temperature≤65 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 2Hz/s;
When outdoor coil pipe used temperature>65 ℃, while continuing 10s, the air-conditioning unit is directly shut down, after standby in 3 minutes, restart, and continuous 3 outdoor coil pipe used overtemperature protes in 60 minutes, stopping alarm, can cancel after re-powering;
Step (13): if 18 grades of faults, i.e. suction temperature sensor fault,
A. heat the decision condition shielding Rule of judgment relevant to suction temperature that the start cross valve ensures that in running, the cross valve commutation is successful, that is: after cross valve powers on, if outdoor coil pipe used temperature deducts outdoor environment temperature lower than 0 ℃, and the delivery temperature of the compressor started all is greater than 30 ℃, and lasting 3s, think that the cross valve commutation puts in place;
When B. heating mode moved, the control that heats main electronic expansion valve opening was controlled according to indoor unit capability demand percentage:
When indoor unit capability demand percentage<50%, heat main electronic expansion valve opening=150～200 steps;
When 50%≤indoor unit capability demand percentage<75%, heat main electronic expansion valve opening=200～250 steps;
When indoor unit capability demand percentage >=75%, heat main electronic expansion valve opening=250～350 steps;
Step (14): if 19 grades of faults, the i.e. too low fault of suction temperature: in direct-current variable-frequency multi-connection machine normal course of operation, if suction temperature is too low, carry out following protection:
When 3 ℃≤suction temperature<4 ℃, DC frequency-changeable compressor raising frequency, raising frequency speed 1Hz/10s;
When 2 ℃≤suction temperature<3 ℃, DC frequency-changeable compressor keeps current running frequency;
When 0 ℃≤suction temperature<2 ℃, DC frequency-changeable compressor frequency reducing, frequency reducing speed 1Hz/10s;
When-3 ℃≤suction temperature<0 ℃, DC frequency-changeable compressor frequency reducing, frequency reducing speed 1Hz/s;
When suction temperature<-3 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed 2Hz/s, and open the unloading magnetic valve between high and low pressure side, to improve the low-pressure side temperature;
When suction temperature >=4 ℃, the DC frequency-changeable compressor running frequency is recovered normal regulating;
Step (15): if 20 grades of faults, the indoor environment temperature sensor fault
Indoor unit capability demand percentage calculates in the following way: in the front 40min after the start of air-conditioning unit, indoor unit capability demand percentage calculates by 130%; In 20min afterwards, indoor unit capability demand percentage calculates by 100%; After this, in each computing cycle, by the rate reduction indoor unit capability demand percentage of 10%/20min, until be down to 50%, and be maintained to the shutdown maintenance of coming off duty;
Step (16): if 21 grades of faults, the indoor coil pipe sensor fault,
During the refrigeration mode operation, the indoor coil pipe sensor fault does not affect the air-conditioning unit operation;
During the heating mode operation, the electronic expansion valve opening of start indoor set is fixed on 350～450 steps;
During the heating mode operation, the air-conditioning unit is opened in the front 60min of operation, according to the on off control of normal adjusting mode tuning DC frequency-changeable compressor running frequency and invariable frequency compressor;
Heating mode when operation, after air-conditioning unit start operation 60min, if running frequency higher than 60Hz, running frequency reduces, frequency reducing speed is 10Hz/20min, until running frequency is down to 60Hz, and maintains operation; When running frequency during lower than 60Hz, by current frequency operation;
Step (17): if 22 grades of faults, the indoor coil overtemperature,
The indoor coil overtemperature prote is effective when air-conditioning unit heating operation,
After compressor operation, detect indoor coil pipe, when 60 ℃≤indoor coil pipe<65 ℃, and continue 5 seconds, indoor set sends on indoor unit capability demand percentage and is limited to 30% to off-premises station, until indoor coil pipe<56 ℃, and continue to cancel after 3 seconds the restriction of indoor unit capability demand percentage;
When indoor coil pipe >=65 ℃; and continuous 10 seconds; indoor set is 12% to off-premises station transmission indoor unit capability demand percentage; indoor fan and electric expansion valve are by warm shutdown mode, moving; until indoor coil pipe<52 ℃; and continue 3 seconds, return to normal control, indoor fan and electronic expansion valve controls return to the front state of indoor coil overtemperature prote that enters.
Claims (1)
1. the failure operation control method of a DC frequency converting air-conditioner is characterized in that: comprise following concrete steps:
(1), classification is carried out in the fault and the protection that existing DC frequency converting air-conditioner are occurred;
(2), judge whether the air-conditioning unit has fault:
The operation of air-conditioning unit starting, in running, carry out the fault judgement: if fault-free, the air-conditioning unit continues operation; If the air-conditioning unit breaks down, according to the fault rank, shut down or enter the pattern that operates with failure accordingly;
The failure operation control method of described DC frequency converting air-conditioner is characterized in that: fault and protection that existing DC frequency converting air-conditioner occurs carried out to classification, is set as 1 grade to 22 grades, and totally 22 rank faults, distinguish as follows:
1 grade of fault: driven compressor module fault;
2 grades of faults: compressor operating is abnormal or start unsuccessfully;
3 grades of faults: outside control panel and driven compressor module communication fault;
4 grades of faults: outdoor fan fault;
5 grades of faults: outside control panel and indoor control panel communication failure;
6 grades of faults: indoor set anti-freeze;
7 grades of faults: excessive discharge temperature;
8 grades of faults: overheat of compressor fault;
9 grades of faults: outdoor EEPROM fault;
10 grades of faults: outdoor input current sensor fault;
11 grades of faults: outdoor input ac voltage sensor fault;
12 grades of faults: input side overcurrent protection;
13 grades of faults: input side interchange overvoltage/under-voltage;
14 grades of faults: exhaust gas temperature sensor short circuit/open circuit fault;
15 grades of faults: outdoor environment temperature short circuit sensor/open circuit fault;
16 grades of faults: outdoor coil pipe used temperature sensor short circuit/open circuit fault;
17 grades of faults: outdoor coil pipe used overtemperature;
18 grades of faults: suction temperature sensor fault;
19 grades of faults: the too low fault of suction temperature;
20 grades of faults: indoor environment temperature sensor fault;
21 grades of faults: indoor coil pipe sensor fault;
22 grades of faults: indoor coil overtemperature;
Shutdown described in described step (two) refers to, whether such fault the main core component of grievous injury, or such fault causes the air-conditioning unit to move; If so, and the fault rank is one of them in 1 grade to 5 grades fault, hard stop, and show failure code;
The pattern of operating with failure accordingly that enters described in described step (two) refers to, enters corresponding failure operation pattern according to different fault ranks:
Step (1): if 6 grades of faults, i.e. indoor set anti-freeze,
Indoor coil pipe is carried out to subregion: a-quadrant: indoor coil pipe<-5 ℃;
B zone :-5 ℃≤indoor coil pipe<4 ℃;
C zone: 4 ℃≤indoor coil pipe≤5 ℃;
The D zone: indoor coil pipe is in rising edge, and indoor coil pipe >=8 ℃;
A-quadrant: when indoor coil pipe<-5 ℃, and during lasting 30s, carry out the anti-freeze stoppage protection, now, and compressor shutdown, outdoor fan stops, and indoor fan is running as usual;
The D zone: after anti-freeze protection is shut down, and when indoor coil pipe rise to >=8 ℃ the time, compressor releasing anti-freeze frequency limitation;
B zone: when indoor coil pipe<4 ℃, carry out antifreeze frequency reducing, frequency reducing speed 8Hz/30s; If in the frequency reducing process, still be in the B district, continue frequency reducing, until minimum running frequency 30Hz; Anti-freeze frequency reducing condition subsequent: indoor coil pipe is raised to >=8 ℃ after, remove the anti-freeze frequency reducing;
The C zone: anti-freeze is forbidden the raising frequency state, and compressor maintains current frequency, but frequency reducing, but can not raising frequency;
Anti-freeze is forbidden the raising frequency condition subsequent: behind indoor coil pipe >=8 ℃, remove anti-freeze and forbid the raising frequency state;
Step (2): if 7 grades of faults, i.e. excessive discharge temperature,
Invariable frequency compressor: when invariable frequency compressor delivery temperature >=105 ℃, continue 10s, stop invariable frequency compressor; In the 3min standby, and during invariable frequency compressor delivery temperature≤90 ℃, invariable frequency compressor restarts; Continuous 3 excessive discharge temperature protection in 60min, stopping alarm, and the start that need to again manually power on;
Frequency-changeable compressor:
When 90 ℃<frequency-changeable compressor delivery temperature≤95 ℃, raising frequency at a slow speed, raising frequency speed 1Hz/10s;
When 95 ℃<frequency-changeable compressor delivery temperature≤98 ℃, keep current running frequency;
When 98 ℃<frequency-changeable compressor delivery temperature≤100 ℃, frequency reducing at a slow speed, frequency reducing speed 1Hz/10s;
When 100 ℃<frequency-changeable compressor delivery temperature≤102 ℃, frequency reducing fast, frequency reducing speed 1Hz/s;
When 102 ℃<frequency-changeable compressor delivery temperature<105 ℃, frequency reducing fast, frequency reducing speed 2Hz/s;
When frequency-changeable compressor delivery temperature >=105 ℃, continue 10s, shut down; After the 3min standby, restart continuous 3 excessive discharge temperature protection in 60min, stopping alarm, and the start that need to again manually power on;
Step (3): if 8 grades of faults, i.e. overheat of compressor fault,
When compressor case temperature switch>130 ℃ disconnect, hard stop, and show malfunction;
When compressor case temperature switch<100 ℃, recover, compressor, after the 3min standby, reopens;
Step (4): if 9 grades of faults, i.e. outdoor EEPROM fault,
Take to arrange two kinds of EEPROM, a kind of is the EEPROM be built in chip program, and the setting of air-conditioning unit operational factor is the value of determining after debugging, and parameter by default; Another kind is external EEPROM;
When the air-conditioning unit powers on start, read external EEPROM, if read continuous 3 failures of external EEPROM, proceed to and read built-in EEPROM, the air-conditioning unit operates with failure according to the default parameters in built-in EEPROM, and shows failure code;
Step (5): if 10 grades of faults, i.e. outdoor input current sensor fault, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (6): if 11 grades of faults, i.e. outdoor input ac voltage sensor fault, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (7): if 12 grades of faults, i.e. input side overcurrent protection, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (8): if 13 grades of faults, i.e. input side interchange overvoltage/under-voltage, DC frequency-changeable compressor is limited under rated frequency 60Hz and continues operation;
Step (9): if 14 grades of faults, i.e. exhaust gas temperature sensor short circuit/open circuit fault,
If while 8 grades of faults not occurring, DC frequency-changeable compressor starts frequency reducing operation, frequency reducing speed 5Hz/5min;
While if 8 grades of faults occurring, DC frequency-changeable compressor starts the frequency reducing operation, and frequency reducing speed is brought up to 5Hz/2min;
When the DC frequency-changeable compressor running frequency was reduced to the minimum operation frequency, 5min detected 14 grades of faults continuously; If 14 grades of faults exist always, and 8 grades of also existence always of faults, shut down, after 10min, start shooting again, under minimum operation frequency 30Hz, move;
Step (10): if 15 grades of faults, i.e. outdoor environment temperature short circuit sensor/open circuit fault,
The control relevant to outdoor environment temperature is controlled according to the failure operation pattern:
A. the value of the limit value A in the calculating of indoor unit capability demand percentage is 100%;
When B. heating mode moved, the target degree of superheat value that heats main electric expansion valve was 2 ℃;
When C. refrigeration mode moved, subcooler electronic expansion valve controls pattern was controlled according to the delivery temperature control mode;
When D. refrigeration mode moved, the control of outdoor fan motor, controlled according to outdoor coil pipe used temperature, and do not judge outdoor environment temperature;
When E. heating mode moved, the control of outdoor fan motor, controlled according to the defrosting temperature, and do not judge outdoor environment temperature;
When F. refrigeration mode moves, 0 ℃ of indoor target evaporating temperature stuck-at-１;
Step (11): if 16 grades of faults--outdoor coil pipe used temperature sensor short circuit/open circuit fault,
A. heat the start cross valve and ensure that in running, the successful decision condition of cross valve commutation is adjusted into the condition under malfunction, if that is: cross valve power on after Compressor Inlet Temperature deduct outdoor environment temperature and be less than 6 ℃, and the compressor exhaust temperature started all is greater than 30 ℃, and lasting 3s, think that the cross valve commutation puts in place;
B. during the refrigerating operaton pattern, the control when the cold control mode of the mistake of subcooler electronic expansion valve opening is adjusted into fault mode
Mode, that is:
When the mean temperature of subcooler outlet temperature<indoor coil middle part, subcooler electronic expansion valve opening variable quantity=2 * (subcooler outlet temperature-indoor coil middle part mean temperature);
When subcooler outlet temperature >=indoor coil middle part mean temperature, subcooler electronic expansion valve opening variable quantity=subcooler outlet temperature-indoor coil middle part mean temperature;
When C. refrigeration mode moved, the rotating speed of outdoor fan motor was forced according to 5 grades of operations;
D. in refrigeration mode when operation,, when the frequency-changeable compressor running frequency during lower than specified running frequency 60Hz, by current running frequency operation; During higher than 60Hz, running frequency is down to 60Hz when the frequency-changeable compressor running frequency;
Step (12): if 17 grades of faults, outdoor coil pipe used overtemperature,
During heating mode, outdoor coil pipe used overtemperature prote is invalid, and only when refrigeration mode moved, outdoor coil pipe used overtemperature prote was just effective;
When 56 ℃<outdoor coil pipe used temperature≤58 ℃, the DC frequency-changeable compressor raising frequency, raising frequency speed is 1Hz/10s;
When 58 ℃<outdoor coil pipe used temperature≤59 ℃, DC frequency-changeable compressor keeps current frequency operation;
When 59 ℃<outdoor coil pipe used temperature≤62 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 1Hz/10s;
When 62 ℃<outdoor coil pipe used temperature≤63 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 1Hz/s;
When 63 ℃<outdoor coil pipe used temperature≤65 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed is 2Hz/s;
When outdoor coil pipe used temperature>65 ℃, while continuing 10s, the air-conditioning unit is directly shut down, after standby in 3 minutes, restart, and continuous 3 outdoor coil pipe used overtemperature protes in 60 minutes, stopping alarm, can cancel after re-powering;
Step (13): if 18 grades of faults, i.e. suction temperature sensor fault,
A. heat the decision condition shielding Rule of judgment relevant to suction temperature that the start cross valve ensures that in running, the cross valve commutation is successful, that is: after cross valve powers on, if outdoor coil pipe used temperature deducts outdoor environment temperature lower than 0 ℃, and the delivery temperature of the compressor started all is greater than 30 ℃, and lasting 3s, think that the cross valve commutation puts in place;
When B. heating mode moved, the control that heats main electronic expansion valve opening was controlled according to indoor unit capability demand percentage:
When indoor unit capability demand percentage<50%, heat main electronic expansion valve opening=150～200 steps;
When 50%≤indoor unit capability demand percentage<75%, heat main electronic expansion valve opening=200～250 steps;
When indoor unit capability demand percentage >=75%, heat main electronic expansion valve opening=250～350 steps;
Step (14): if 19 grades of faults, the i.e. too low fault of suction temperature: in direct-current variable-frequency multi-connection machine normal course of operation, if suction temperature is too low, carry out following protection:
When 3 ℃≤suction temperature<4 ℃, DC frequency-changeable compressor raising frequency, raising frequency speed 1Hz/10s;
When 2 ℃≤suction temperature<3 ℃, DC frequency-changeable compressor keeps current running frequency;
When 0 ℃≤suction temperature<2 ℃, DC frequency-changeable compressor frequency reducing, frequency reducing speed 1Hz/10s;
When-3 ℃≤suction temperature<0 ℃, DC frequency-changeable compressor frequency reducing, frequency reducing speed 1Hz/s;
When suction temperature<-3 ℃, the DC frequency-changeable compressor frequency reducing, frequency reducing speed 2Hz/s, and open the unloading magnetic valve between high and low pressure side, to improve the low-pressure side temperature;
When suction temperature >=4 ℃, the DC frequency-changeable compressor running frequency is recovered normal regulating;
Step (15): if 20 grades of faults, the indoor environment temperature sensor fault
Indoor unit capability demand percentage calculates in the following way: in the front 40min after the start of air-conditioning unit, indoor unit capability demand percentage calculates by 130%; In 20min afterwards, indoor unit capability demand percentage calculates by 100%; After this, in each computing cycle, by the rate reduction indoor unit capability demand percentage of 10%/20min, until be down to 50%, and be maintained to the shutdown maintenance of coming off duty;
Step (16): if 21 grades of faults, the indoor coil pipe sensor fault,
During the refrigeration mode operation, the indoor coil pipe sensor fault does not affect the air-conditioning unit operation;
During the heating mode operation, the electronic expansion valve opening of start indoor set is fixed on 350～450 steps;
During the heating mode operation, the air-conditioning unit is opened in the front 60min of operation, according to the on off control of normal adjusting mode tuning DC frequency-changeable compressor running frequency and invariable frequency compressor;
Heating mode when operation, after air-conditioning unit start operation 60min, if running frequency higher than 60Hz, running frequency reduces, frequency reducing speed is 10Hz/20min, until running frequency is down to 60Hz, and maintains operation; When running frequency during lower than 60Hz, by current frequency operation;
Step (17): if 22 grades of faults, the indoor coil overtemperature,
The indoor coil overtemperature prote is effective when air-conditioning unit heating operation,
After compressor operation, detect indoor coil pipe, when 60 ℃≤indoor coil pipe<65 ℃, and continue 5 seconds, indoor set sends on indoor unit capability demand percentage and is limited to 30% to off-premises station, until indoor coil pipe<56 ℃, and continue to cancel after 3 seconds the restriction of indoor unit capability demand percentage;
When indoor coil pipe >=65 ℃; and continuous 10 seconds; indoor set is 12% to off-premises station transmission indoor unit capability demand percentage; indoor fan and electric expansion valve are by warm shutdown mode, moving; until indoor coil pipe<52 ℃; and continue 3 seconds, return to normal control, indoor fan and electronic expansion valve controls return to the front state of indoor coil overtemperature prote that enters.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1455193A (en) * | 2002-04-29 | 2003-11-12 | 上海日立电器有限公司 | Digital direct-current variable frequency air conditioner controller |
| CN101464032A (en) * | 2007-12-20 | 2009-06-24 | 珠海格力电器股份有限公司 | Sine DC variable frequency air conditioner controller and its control method |
| CN101949570A (en) * | 2010-09-09 | 2011-01-19 | 宁波奥克斯电气有限公司 | Direct-current set-free air conditioner starting control method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100732717B1 (en) * | 2005-12-29 | 2007-06-27 | 삼성전자주식회사 | Motor system and control method thereof, and compressor using the same |
-
2011
- 2011-08-02 CN CN2011102191620A patent/CN102345915B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1455193A (en) * | 2002-04-29 | 2003-11-12 | 上海日立电器有限公司 | Digital direct-current variable frequency air conditioner controller |
| CN101464032A (en) * | 2007-12-20 | 2009-06-24 | 珠海格力电器股份有限公司 | Sine DC variable frequency air conditioner controller and its control method |
| CN101949570A (en) * | 2010-09-09 | 2011-01-19 | 宁波奥克斯电气有限公司 | Direct-current set-free air conditioner starting control method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11791760B2 (en) | 2021-02-10 | 2023-10-17 | Regal Beloit America, Inc. | Systems and methods for component monitoring in an electric motor |
| CN114383346A (en) * | 2021-12-27 | 2022-04-22 | 北京世纪互联宽带数据中心有限公司 | Refrigeration unit fault processing method and device and computer readable storage medium |
| CN114383346B (en) * | 2021-12-27 | 2023-10-27 | 北京世纪互联宽带数据中心有限公司 | Method and device for processing fault of refrigerating unit and computer readable storage medium |
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