CN113310186A - Control method for compressor at high temperature of variable frequency air conditioner coil pipe - Google Patents
Control method for compressor at high temperature of variable frequency air conditioner coil pipe Download PDFInfo
- Publication number
- CN113310186A CN113310186A CN202110614626.1A CN202110614626A CN113310186A CN 113310186 A CN113310186 A CN 113310186A CN 202110614626 A CN202110614626 A CN 202110614626A CN 113310186 A CN113310186 A CN 113310186A
- Authority
- CN
- China
- Prior art keywords
- compressor
- delta
- toc
- frequency
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to a variable frequency air conditioner, and discloses a control method for a compressor at high temperature of a coil pipe of the variable frequency air conditioner, which is used for controlling the frequency of the compressor by monitoring the temperature Toc of the coil pipe, calculating the variation quantity delta Toc of the coil pipe in unit time, determining the frequency value delta F with low frequency reduction according to delta Toc and controlling the frequency of the compressor by combining the current temperature of the coil pipe, so that the temperature of the coil pipe is stabilized at the critical point of the frequency reduction temperature and the frequency limitation temperature, and the problem that the frequency of the compressor is unstable due to continuous lifting treatment of the frequency of the compressor when the coil pipe is at high temperature is solved.
Description
Technical Field
The invention relates to an inverter air conditioner, in particular to a method for controlling a compressor when an inverter air conditioner coil is at a high temperature.
Background
In order to avoid the overhigh temperature of the indoor coil or the outdoor coil of the air conditioner, the temperature of the coil is checked, when the temperature of the coil reaches a high-temperature protection point, the frequency limiting, the frequency reducing or the shutdown of the compressor is carried out, and the frequency reducing value is reduced by setting a fixed frequency reducing value in the prior art, when the temperature of the coil reaches the frequency reducing temperature, the frequency of the compressor is reduced according to the fixed value, and the control mode has the following defects: if the fixed frequency reduction value is too small, the temperature of the coil pipe can be continuously increased, so that the compressor is stopped, and if the fixed frequency reduction value is too large, the temperature of the coil pipe can be reduced to be below a high-temperature protection point, the frequency limitation is quitted, then the coil pipe enters the high-temperature protection, the frequency of the compressor is continuously increased and decreased, so that the frequency of the compressor is unstable.
Disclosure of Invention
The technical problems solved by the invention are as follows: the method for controlling the compressor at the high temperature of the coil pipe of the variable frequency air conditioner solves the problem that the frequency of the compressor is unstable due to the fact that the compressor is subjected to frequency reduction treatment improperly when the coil pipe is at the high temperature, and therefore the frequency of the compressor is subjected to lifting treatment continuously.
The invention adopts the technical scheme for solving the technical problems that: the method for controlling the compressor at the high temperature of the coil pipe of the inverter air conditioner comprises the following steps:
s01, determining a frequency limiting temperature Toc1, a frequency reducing temperature Toc2 and a shutdown temperature Toc3 when the coil pipe is at a high temperature according to the capacity of an air conditioning system, wherein Toc1 is more than Toc2 and less than Toc 3;
s02, monitoring the coil temperature Toc and the current frequency F of the compressor during the operation of the air conditioner in real time, calculating delta Toc, wherein the delta Toc is the variation of the coil temperature in unit time, and determining the frequency reduction amplitude delta F according to delta Toc;
s03, controlling the compressor according to the coil temperature Toc:
if Toc1 is not more than Toc and less than Toc2, limiting the frequency of the compressor, and taking the current frequency F as the highest operation frequency of the compressor after frequency limitation;
if Toc2 is not more than Toc and less than Toc3, the compressor is subjected to frequency reduction, and the compressor runs at the highest running frequency of F-delta F after frequency reduction;
if Toc3 is less than or equal to Toc, the compressor is stopped.
Further, in step S03, the time difference between two adjacent times of performing the frequency-down control on the compressor is not less than the preset time.
Further, after the stop control of the compressor is performed in step S03, when the stop time of the compressor is greater than the preset minimum stop time of the compressor and Toc < Toc1, the compressor is restarted.
Further, a temperature T is preset, wherein T is less than Toc3-Toc2, and in step S03, if Toc3-T is less than or equal to Toc and less than Toc3, the delta F is increased to a fixed value, wherein the fixed value is greater than all the down-conversion amplitude values delta F determined according to delta Toc.
Further, in step S02,
when the delta Toc is more than or equal to T1, F is equal to F1;
when T2 is more than or equal to delta Toc and less than T1, delta F is F2;
when T3 is more than or equal to delta Toc and less than T2, delta F is F3;
when T4 is more than or equal to delta Toc and less than T3, delta F is F4;
when the temperature is more than or equal to 0 ℃ and less than delta Toc and less than T4, delta F is equal to F5;
when delta Toc is less than 0 ℃, delta F is 0 Hz;
the T1 > T2 > T3 > T4 > 0; f1 > F2 > F3 > F4 > F5 > 0.
Further, when the inverter air conditioner is in a heating mode, the coil pipe is an inner coil pipe, and when the inverter air conditioner is in a cooling mode, the coil pipe is an outer coil pipe.
The invention has the beneficial effects that: the method for controlling the compressor at the high temperature of the coil pipe of the variable frequency air conditioner comprises the steps of monitoring the temperature of the coil pipe Toc, calculating the variation quantity delta Toc of the coil pipe in unit time, determining the frequency value delta F with low frequency reduction according to delta Toc, and controlling the frequency of the compressor by combining the current temperature of the coil pipe, so that the temperature of the coil pipe is stabilized at the critical point of the frequency reduction temperature and the frequency limiting temperature, and the problem that the frequency reduction of the compressor is improper when the coil pipe is at the high temperature, the frequency of the compressor is continuously lifted, and the frequency of the compressor is unstable is solved.
Drawings
FIG. 1 is a schematic diagram of a control method for a compressor when a coil of an inverter air conditioner is at a high temperature.
Detailed Description
The method for controlling the compressor at the high temperature of the coil pipe of the inverter air conditioner comprises the following steps as shown in the attached figure 1:
s01, determining a frequency limiting temperature Toc1, a frequency reducing temperature Toc2 and a shutdown temperature Toc3 when the coil pipe is at a high temperature according to the capacity of an air conditioning system, wherein Toc1 is more than Toc2 and less than Toc 3;
s02, monitoring the coil temperature Toc and the current frequency F of the compressor during the operation of the air conditioner in real time, calculating delta Toc, wherein the delta Toc is the variation of the coil temperature in unit time, and determining the frequency reduction amplitude delta F according to delta Toc;
s03, controlling the compressor according to the coil temperature Toc:
if Toc1 is not more than Toc and less than Toc2, limiting the frequency of the compressor, and taking the current frequency F as the highest operation frequency of the compressor after frequency limitation;
if Toc2 is not more than Toc and less than Toc3, the compressor is subjected to frequency reduction, and the compressor runs at the highest running frequency of F-delta F after frequency reduction;
if Toc3 is less than or equal to Toc, the compressor is stopped.
Further, in step S03, the time difference between two adjacent times of performing the frequency-down control on the compressor is not less than the preset time.
Further, after the stop control of the compressor is performed in step S03, when the stop time of the compressor is greater than the preset minimum stop time of the compressor and Toc < Toc1, the compressor is restarted.
Further, a temperature T is preset, wherein T is less than Toc3-Toc2, and in step S03, if Toc3-T is less than or equal to Toc and less than Toc3, the delta F is increased to a fixed value, wherein the fixed value is greater than all the down-conversion amplitude values delta F determined according to delta Toc.
Further, in step S02,
when the delta Toc is more than or equal to T1, F is equal to F1;
when T2 is more than or equal to delta Toc and less than T1, delta F is F2;
when T3 is more than or equal to delta Toc and less than T2, delta F is F3;
when T4 is more than or equal to delta Toc and less than T3, delta F is F4;
when the temperature is more than or equal to 0 ℃ and less than delta Toc and less than T4, delta F is equal to F5;
when delta Toc is less than 0 ℃, delta F is 0 Hz;
the T1 > T2 > T3 > T4 > 0; f1 > F2 > F3 > F4 > F5 > 0.
Further, when the inverter air conditioner is in a heating mode, the coil pipe is an inner coil pipe, and when the inverter air conditioner is in a cooling mode, the coil pipe is an outer coil pipe.
Example (b):
in an embodiment of the present invention, the air conditioner has a frequency limiting temperature Toc1 ═ 59 ℃, a frequency reducing temperature Toc2 ═ 61 ℃, and a shutdown temperature Toc3 ═ 66 ℃, a preset temperature T ═ 2 ℃, a preset fixed frequency reduction frequency of 12Hz, and a preset minimum shutdown time of the compressor.
Firstly, monitoring the temperature Toc of a coil pipe and the current frequency F of a compressor during the operation of the air conditioner in real time, calculating delta Toc, wherein delta Toc is the variation of the temperature of the coil pipe in unit time, and determining the frequency reduction amplitude delta F according to delta Toc;
specifically, the down-conversion amplitude af value is determined from Δ Toc as follows:
when the temperature of delta Toc is more than or equal to 4 ℃, delta F is 10 Hz;
when the temperature is more than or equal to 2 ℃ and less than delta Toc and less than 4 ℃, delta F is 7 Hz;
when the temperature is more than or equal to 1 ℃ and less than delta Toc and less than 2 ℃, delta F is 5 Hz;
when the temperature is more than or equal to 0.3 ℃ and less than delta Toc and less than 1 ℃, delta F is 3 Hz;
when the temperature is more than or equal to 0 ℃ and less than delta Toc and less than 0.3 ℃, delta F is 1 Hz;
when Δ Toc < 0 ℃, Δ F ═ 0 Hz.
Then, the compressor is controlled according to the coil temperature Toc and the variation delta Toc of the coil temperature in unit time:
when Toc is less than 59 ℃, the frequency of the compressor is not controlled, specifically, the frequency of the compressor is controlled to operate according to the control of the air conditioning system;
when the temperature is greater than or equal to 59 ℃ and less than Toc ℃ and less than 61 ℃, the compressor takes the current frequency F as the highest running frequency, specifically, when the air conditioning system needs to control the frequency of the compressor to be higher than the current frequency, the frequency of the compressor is not allowed to be increased, and when the air conditioning system needs to control the frequency of the compressor not to be higher than the current frequency, the frequency of the compressor is allowed to be unchanged or reduced;
when the temperature is more than or equal to 61 ℃ and less than Toc ℃ and less than 64 ℃, the compressor operates with F-delta F as the highest operation frequency; specifically, if the delta Toc is more than or equal to 4 ℃, the highest running frequency of the compressor is operated at F-10 Hz; if the temperature is more than or equal to 2 ℃ and less than delta Toc and less than 4 ℃, the highest operation frequency of the compressor is operated at F-7 Hz; if the temperature is more than or equal to 1 ℃ and less than delta Toc and less than 2 ℃, the highest operation frequency of the compressor is operated at F-5 Hz; if the temperature is more than or equal to 0.3 ℃ and less than delta Toc and less than 1 ℃, the highest operation frequency of the compressor is operated at F-3 Hz; if the temperature is more than or equal to 0 ℃ and delta Toc is less than 0.3 ℃, the highest operation frequency of the compressor is operated at F-1 Hz; if delta Toc is less than 0 ℃, the highest operation frequency of the compressor is operated as F;
when the temperature is greater than or equal to 64 ℃ and less than Toc ℃ and less than 66 ℃, the compressor operates with the current frequency F-12 as the highest operating frequency;
when the temperature is less than or equal to 66 ℃ and less than or equal to Toc, the compressor is stopped.
For the air conditioning system in the embodiment, the operation process and corresponding control of the air conditioner are as follows:
the compressor current frequency F and coil temperature Toc are monitored in real time.
When the coil temperature Toc is equal to 59 ℃, the compressor frequency is F1 and the coil temperature Toc1 is 59 ℃, the compressor is limited in frequency, and after frequency limitation, the compressor is compressed at the maximum operating frequency of F1, and at this time, the coil temperature Toc may still rise.
When Toc is increased to 61 ℃, monitoring the frequency of a compressor at the moment as F2 and the temperature of a coil pipe as Toc2 to 61 ℃, carrying out frequency reduction treatment on the compressor, calculating the current delta Toc2, determining the frequency reduction amplitude delta F2 according to delta Toc2, wherein the highest operation frequency of the compressor after frequency reduction is F2-delta F2, F2 is not more than F1, obtaining the current frequency F3 and the temperature of the coil pipe Toc3 after 2 minutes, the frequency F3 is not more than F2-delta F2, if the temperature of 64 ℃ is more than Toc3 and not more than 61 ℃, the frequency delta Toc3 is not less than 0, indicating that the temperature of the coil pipe also has the trend of temperature increase under the frequency reduction amplitude, calculating the current delta Toc3 value, determining the frequency reduction amplitude delta F3 according to the value of delta Toc3, further carrying out frequency reduction on the compressor, and the highest operation frequency of the compressor after frequency reduction is F3-delta F3; if Toc3 is less than 61 ℃, delta Toc3 is less than 0, which indicates that the temperature of the coil pipe has a descending trend under the frequency reduction amplitude, and the highest operation frequency of the compressor is F3; in the process, as long as the monitored coil temperature Toc is higher than 64 ℃ and more than or equal to Toc ℃ and more than or equal to 61 ℃, the difference of the two-time frequency reduction control time of the compressor is not less than 2 minutes, and in the process, when the monitored coil temperature Toc is lower than 61 ℃, the compressor takes the currently detected frequency as the highest operation frequency.
When Toc is raised to 64 ℃, the frequency of the compressor is F4 and the temperature of the coil is Toc 2-64 ℃, the maximum running frequency of the compressor is F4-12Hz, the frequency of the compressor is subjected to the frequency reduction treatment, and then the frequency is reduced greatly on the basis, so that the compressor is prevented from stopping.
When Toc is raised to 66 ℃, the compressor is controlled to stop, and when the compressor stop time is larger than the preset compressor minimum stop time and Toc < 59 ℃, the compressor is started again.
For this embodiment, when the air conditioner is operating in the cooling mode, the detected coil temperature is the coil temperature of the outdoor unit, and when the air conditioner is operating in the heating mode, the detected coil temperature is the coil temperature of the indoor unit.
In this embodiment, the temperature of the coil of the air conditioning system is stabilized at the critical point of the down-converting and frequency-limiting temperature, i.e. 61 ℃, at this time, the variation trend of the temperature of the coil is close to 0, i.e. Δ Toc ≈ 0, the compressor is in the frequency-limiting state, and the frequency of the compressor is determined by multiple down-converting or frequency-limiting.
Claims (6)
1. The method for controlling the compressor at the high temperature of the coil pipe of the inverter air conditioner is characterized by comprising the following steps of:
s01, determining a frequency limiting temperature Toc1, a frequency reducing temperature Toc2 and a shutdown temperature Toc3 when the coil pipe is at a high temperature according to the capacity of an air conditioning system, wherein Toc1 is more than Toc2 and less than Toc 3;
s02, monitoring the coil temperature Toc and the current frequency F of the compressor during the operation of the air conditioner in real time, calculating delta Toc, wherein the delta Toc is the variation of the coil temperature in unit time, and determining the frequency reduction amplitude delta F according to delta Toc;
s03, controlling the compressor according to the coil temperature Toc:
if Toc1 is not more than Toc and less than Toc2, limiting the frequency of the compressor, and taking the current frequency F as the highest operation frequency of the compressor after frequency limitation;
if Toc2 is not more than Toc and less than Toc3, the compressor is subjected to frequency reduction, and the compressor runs at the highest running frequency of F-delta F after frequency reduction;
if Toc3 is less than or equal to Toc, the compressor is stopped.
2. The method for controlling the compressor at high temperature of the coil of the inverter air conditioner as claimed in claim 1, wherein in step S03, the difference between the time of performing the down-conversion control on the compressor twice in the adjacent time is not less than the preset time.
3. The method for controlling the compressor at the time of the coil high temperature of the inverter air conditioner as claimed in claim 1 or 2, wherein the compressor is restarted when the compressor stop time is more than the preset compressor minimum stop time and Toc < Toc1 after the stop control of the compressor is performed in step S03.
4. The method for controlling the compressor at the time of high temperature of the coil of the inverter air conditioner as claimed in claim 1 or 2, wherein a temperature T is preset, wherein T is less than Toc3-Toc2, and in step S03, if Toc3-T is less than or equal to Toc and less than Toc3, the delta F is increased to a fixed value, wherein the fixed value is greater than all the down-conversion amplitude values delta F determined according to delta Toc.
5. The method for controlling the frequency of the compressor at high temperature of the coil of the inverter air conditioner as claimed in claim 1 or 2, wherein in step S02,
when the delta Toc is more than or equal to T1, F is equal to F1;
when T2 is more than or equal to delta Toc and less than T1, delta F is F2;
when T3 is more than or equal to delta Toc and less than T2, delta F is F3;
when T4 is more than or equal to delta Toc and less than T3, delta F is F4;
when the temperature is more than or equal to 0 ℃ and less than delta Toc and less than T4, delta F is equal to F5;
when delta Toc is less than 0 ℃, delta F is 0 Hz;
the T1 > T2 > T3 > T4 > 0; f1 > F2 > F3 > F4 > F5 > 0.
6. The method for controlling the compressor at the time of the coil pipe of the inverter air conditioner being in the high temperature state according to claim 1 or 2, wherein when the inverter air conditioner is in the heating mode, the coil pipe is an inner coil pipe, and when the inverter air conditioner is in the cooling mode, the coil pipe is an outer coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614626.1A CN113310186A (en) | 2021-06-02 | 2021-06-02 | Control method for compressor at high temperature of variable frequency air conditioner coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614626.1A CN113310186A (en) | 2021-06-02 | 2021-06-02 | Control method for compressor at high temperature of variable frequency air conditioner coil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113310186A true CN113310186A (en) | 2021-08-27 |
Family
ID=77377300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110614626.1A Pending CN113310186A (en) | 2021-06-02 | 2021-06-02 | Control method for compressor at high temperature of variable frequency air conditioner coil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113310186A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234358A (en) * | 2021-12-27 | 2022-03-25 | 珠海格力电器股份有限公司 | Air conditioner shutdown protection adjusting method and air conditioner |
| CN115164354A (en) * | 2022-07-08 | 2022-10-11 | 宁波奥克斯电气股份有限公司 | Frequency reduction protection control method and device, air conditioner and storage medium |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769584A (en) * | 2010-01-13 | 2010-07-07 | 宁波奥克斯空调有限公司 | Method for intelligently controlling frequency of variable-frequency air-conditioner |
| CN104729022A (en) * | 2015-04-09 | 2015-06-24 | 宁波奥克斯电气有限公司 | Variable frequency air conditioner unit starting frequency raising control method |
| CN108758965A (en) * | 2018-06-19 | 2018-11-06 | 宁波奥克斯电气股份有限公司 | A kind of overload protection control method, device and air-conditioning |
| CN109114754A (en) * | 2018-10-19 | 2019-01-01 | 珠海格力电器股份有限公司 | Multi-split variable frequency air conditioner high temperature prevention protection control method |
| CN110030688A (en) * | 2019-03-21 | 2019-07-19 | 青岛海尔空调器有限总公司 | The control method and control device of air conditioner |
| CN111853975A (en) * | 2020-07-27 | 2020-10-30 | 广州多乐信电器有限公司 | High-temperature-resistant control method for dehumidifier |
| CN112325458A (en) * | 2020-11-05 | 2021-02-05 | 珠海格力电器股份有限公司 | Air conditioner control method, computer device, and computer-readable storage medium |
-
2021
- 2021-06-02 CN CN202110614626.1A patent/CN113310186A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769584A (en) * | 2010-01-13 | 2010-07-07 | 宁波奥克斯空调有限公司 | Method for intelligently controlling frequency of variable-frequency air-conditioner |
| CN104729022A (en) * | 2015-04-09 | 2015-06-24 | 宁波奥克斯电气有限公司 | Variable frequency air conditioner unit starting frequency raising control method |
| CN108758965A (en) * | 2018-06-19 | 2018-11-06 | 宁波奥克斯电气股份有限公司 | A kind of overload protection control method, device and air-conditioning |
| CN109114754A (en) * | 2018-10-19 | 2019-01-01 | 珠海格力电器股份有限公司 | Multi-split variable frequency air conditioner high temperature prevention protection control method |
| CN110030688A (en) * | 2019-03-21 | 2019-07-19 | 青岛海尔空调器有限总公司 | The control method and control device of air conditioner |
| CN111853975A (en) * | 2020-07-27 | 2020-10-30 | 广州多乐信电器有限公司 | High-temperature-resistant control method for dehumidifier |
| CN112325458A (en) * | 2020-11-05 | 2021-02-05 | 珠海格力电器股份有限公司 | Air conditioner control method, computer device, and computer-readable storage medium |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234358A (en) * | 2021-12-27 | 2022-03-25 | 珠海格力电器股份有限公司 | Air conditioner shutdown protection adjusting method and air conditioner |
| CN114234358B (en) * | 2021-12-27 | 2022-12-13 | 珠海格力电器股份有限公司 | Air conditioner shutdown protection adjusting method and air conditioner |
| CN115164354A (en) * | 2022-07-08 | 2022-10-11 | 宁波奥克斯电气股份有限公司 | Frequency reduction protection control method and device, air conditioner and storage medium |
| CN115164354B (en) * | 2022-07-08 | 2023-09-22 | 宁波奥克斯电气股份有限公司 | Down-conversion protection control method and device, air conditioner and storage medium |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113310186A (en) | Control method for compressor at high temperature of variable frequency air conditioner coil pipe | |
| CN107676939B (en) | Control method, control system and control device of fixed-frequency air conditioner | |
| CN101539151B (en) | Method and device for controlling inverter compressor | |
| CN105444328B (en) | Control the method that air conditioner is shut down | |
| CN110187726B (en) | Temperature control algorithm for semiconductor temperature control device | |
| CN107883553B (en) | Frequency conversion compressor frequency reduction control method and device | |
| CN105716203B (en) | Convertible frequency air-conditioner minimum frequency control method | |
| CN111023420B (en) | Compressor quick start control method and device, air conditioner and storage medium | |
| CN107917501B (en) | Oil return control method of direct-current frequency-conversion multi-split air conditioner | |
| CN104764167B (en) | Oil return control method of variable frequency air conditioner compressor | |
| CN113871758B (en) | Temperature control method and system of battery energy storage system and battery energy storage system | |
| CN110848899B (en) | Variable frequency air conditioner operation control method, computer readable storage medium and air conditioner | |
| CN104819541B (en) | Energy-saving control method, device and air conditioner | |
| CN111219859B (en) | Air conditioner operation frequency protection method and air conditioner | |
| CN110887178A (en) | Control method for heating shutdown of multi-split air conditioner, computer readable storage medium and air conditioner | |
| CN110220265A (en) | The control method of heat pump air conditioner and the heat pump air conditioner for applying it | |
| CN110173421A (en) | A kind of method and device for overload protection of compressor | |
| CN107500519B (en) | Glass plate tempering process control method | |
| CN111894840B (en) | Compressor out-of-step prevention circuit, control method and air conditioner | |
| JPH0626695A (en) | Controller of air conditioner | |
| CN108955006B (en) | Control method for evacuating and stopping refrigerating unit and refrigerating unit | |
| CN106011401A (en) | Annealing furnace smoke exhaust fan control method and control system | |
| CN111622936A (en) | Method, apparatus and computer readable storage medium for compressor overload protection | |
| CN104564637A (en) | Exhaust control method of frequency converter | |
| CN111306697B (en) | Debugging method of variable frequency air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210827 |
|
| RJ01 | Rejection of invention patent application after publication |