WO2018177079A1 - 空调器制热控制方法、控制装置及空调器 - Google Patents

空调器制热控制方法、控制装置及空调器 Download PDF

Info

Publication number
WO2018177079A1
WO2018177079A1 PCT/CN2018/078033 CN2018078033W WO2018177079A1 WO 2018177079 A1 WO2018177079 A1 WO 2018177079A1 CN 2018078033 W CN2018078033 W CN 2018078033W WO 2018177079 A1 WO2018177079 A1 WO 2018177079A1
Authority
WO
WIPO (PCT)
Prior art keywords
temperature
indoor
indoor temperature
frequency
air conditioner
Prior art date
Application number
PCT/CN2018/078033
Other languages
English (en)
French (fr)
Inventor
刘聚科
徐贝贝
许国景
Original Assignee
青岛海尔空调器有限总公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 青岛海尔空调器有限总公司 filed Critical 青岛海尔空调器有限总公司
Publication of WO2018177079A1 publication Critical patent/WO2018177079A1/zh

Links

Images

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00Control inputs relating to system states
    • F24F2140/20Heat-exchange fluid temperature

Definitions

  • the present invention relates to the field of air conditioning technology, and more particularly to an air conditioner and its control, and more particularly to an air conditioner heating control method, a control device, and an air conditioner.
  • air conditioners are the main way to warm up in areas where there is no heating or in cold weather where heating is stopped.
  • the compressor frequency is controlled according to the difference between the indoor temperature and the set indoor target temperature. If the compressor frequency obtained from the difference between the indoor temperature and the set indoor target temperature is not large enough, the indoor temperature rises slowly, and the indoor temperature is still low for a long time after the start-up, which cannot quickly make people feel comfortable, especially in When the room temperature is low, it is longer to wait for the indoor temperature to be comfortable.
  • An object of the present invention is to provide a method and a control device for controlling the heating of an air conditioner, which solves the problem that the heating of the existing air conditioner is slow and the heating is uncomfortable.
  • the heating control method provided by the present invention is implemented by the following technical solutions:
  • An air conditioner heating control method comprising:
  • the air conditioner is heated to obtain an indoor temperature, and the indoor temperature is compared with a first indoor temperature threshold;
  • Calculating a temperature difference between the indoor temperature and the set indoor target temperature obtaining an indoor temperature difference, performing a room temperature PID calculation according to the indoor temperature difference to obtain a first target frequency; acquiring a coil temperature of the indoor heat exchanger, and calculating the disk Obtaining a temperature difference between the tube temperature and the target temperature of the coil, obtaining a temperature difference of the coil, performing a disk temperature PID calculation according to the temperature difference of the coil to obtain a second target frequency; and selecting the first target frequency and the second target
  • the larger of the frequencies is the indoor unit frequency, and the compressor of the air conditioner is controlled according to the indoor unit frequency.
  • the first target frequency is used as the indoor unit frequency, and the compressor of the air conditioner is controlled according to the indoor unit frequency.
  • the dual PID control When performing the dual PID control, acquiring the indoor temperature in real time, and comparing the indoor temperature with a second indoor temperature threshold; the second indoor temperature threshold is greater than the first indoor temperature threshold;
  • the dual PID control is exited.
  • the first target frequency is used as the indoor unit frequency, and the compressor of the air conditioner is controlled according to the indoor unit frequency.
  • the control method as described above when performing the dual PID control, acquiring a current operating frequency of the compressor, and using the current operating frequency as an initial frequency of the disk temperature PID calculation, according to the initial frequency and The result of the disk temperature PID operation determines the second target frequency.
  • the heating control device provided by the present invention is implemented by the following technical solutions:
  • An air conditioner heating control device comprising:
  • An indoor temperature acquisition unit for obtaining an indoor temperature
  • a coil temperature acquiring unit for acquiring a coil temperature of the indoor heat exchanger
  • a room temperature PID calculation unit configured to calculate a temperature difference between the indoor temperature and the set indoor target temperature, obtain an indoor temperature difference, perform a room temperature PID operation according to the indoor temperature difference, obtain and output a first target frequency
  • a disk temperature PID calculation unit configured to calculate a temperature difference between the coil temperature and a target temperature of the coil, obtain a temperature difference of the coil, perform a disk temperature PID calculation according to the temperature difference of the coil, obtain and output a second target frequency ;
  • a temperature comparison unit configured to compare the indoor temperature and the indoor temperature threshold and output a comparison result
  • a dual PID control unit configured to select a larger one of the first target frequency and the second target frequency when an output result of the temperature comparison unit is that the indoor temperature is not greater than a first indoor temperature threshold
  • the indoor unit frequency controls the compressor of the air conditioner according to the indoor unit frequency.
  • control device as described above, the device further comprising:
  • a room temperature PID control unit configured to use the first target frequency as the indoor unit frequency, at least when the output result of the temperature comparison unit is that the indoor temperature is greater than the first indoor temperature threshold, according to the indoor
  • the machine frequency controls the compressor of the air conditioner.
  • the indoor temperature acquisition unit still acquires the indoor temperature in real time, and if the output result of the temperature comparison unit is that the indoor temperature is greater than the a two indoor temperature threshold, the dual PID control unit exits control; the second indoor temperature threshold is greater than the first indoor temperature threshold.
  • control device as described above, the device further comprising:
  • a room temperature PID control unit configured to use the first target frequency as the indoor at least after an output result of the temperature comparison unit is that the indoor temperature is greater than a second indoor temperature threshold, and the dual PID control unit exits control
  • the machine frequency controls the compressor of the air conditioner according to the indoor unit frequency.
  • the present invention also provides an air conditioner having the above air conditioner heating control device.
  • the present invention performs double PID control and selects a room temperature PID operation when the indoor temperature is not greater than the indoor temperature threshold during the heating operation of the air conditioner by setting the indoor temperature threshold.
  • the large frequency value obtained by the disk temperature PID calculation controls the compressor, which can make the indoor temperature rise rapidly when the indoor temperature is low, and can make the air outlet temperature of the air conditioner not be too low, effectively solving the indoor temperature rise.
  • the problem that the slow and low temperature air blows out causes the heating body to be uncomfortable, and the heating performance of the air conditioner is improved.
  • FIG. 1 is a flow chart showing an embodiment of an air conditioner heating control method based on the present invention
  • FIG. 2 is a flow chart showing another embodiment of an air conditioner heating control method based on the present invention.
  • FIG. 3 is a block diagram showing the structure of an air conditioner heating control device according to the present invention.
  • Fig. 4 is a block diagram showing the structure of another embodiment of the air conditioner heating control apparatus according to the present invention.
  • FIG. 1 there is shown a flow chart of an embodiment of an air conditioner heating control method based on the present invention.
  • Step 11 The air conditioner is heated to obtain the indoor temperature, and the indoor temperature is compared with the first indoor temperature threshold.
  • the indoor temperature refers to the indoor temperature of the room in which the air conditioner is located in real time according to the set frequency when the air conditioner is turned on and the heating mode is operated.
  • the indoor temperature can be obtained by using the prior art.
  • the inlet air temperature is detected and acquired as a room temperature by a temperature sensor disposed at or near the air inlet of the air conditioner.
  • the room temperature is then compared to a first temperature threshold.
  • the first indoor temperature threshold is used as a threshold temperature for performing dual PID control, and is a default temperature value preset in the control program when the air conditioner is shipped, or may be a temperature value set by the air conditioner user. If it is set by the user, it is recommended that the air conditioner recommend a reference temperature value for the user's reference.
  • the preset first indoor temperature threshold or the recommended first indoor temperature threshold is 20 °C.
  • Step 12 Perform dual PID control when the indoor temperature is not greater than the first indoor temperature threshold.
  • the dual PID control specifically includes:
  • the indoor temperature is the indoor temperature obtained in step 11
  • the set indoor target temperature refers to the target temperature set by the user and expected in the room.
  • the specific method for performing the room temperature PID calculation based on the indoor temperature difference and obtaining the target frequency for controlling the compressor can be implemented by using the prior art, and will not be described or limited in detail herein.
  • the coil temperature of the indoor heat exchanger is obtained, the temperature difference between the coil temperature and the target temperature of the coil is calculated, the temperature difference of the coil is obtained, and the disk temperature PID operation is performed according to the temperature difference of the coil to obtain the second target frequency.
  • the coil temperature of the indoor heat exchanger is the coil temperature of the indoor heat exchanger obtained according to the set frequency.
  • the coil temperature can be obtained by setting a temperature sensor on the heat exchanger coil.
  • Setting the target temperature of the coil is the target temperature of the coil that can be achieved by the indoor heat exchanger. It can be a default temperature value preset in the control program at the factory, or it can be a temperature set by the air conditioner user. value.
  • the air conditioner recommend a reference temperature value for the user's reference.
  • the preset set coil target temperature or the recommended set coil target temperature range is 42-56 ° C, preferably 50 ° C.
  • the method of obtaining the target frequency for controlling the compressor by the disk temperature PID operation can refer to the method of calculating the target frequency of the compressor by referring to the room temperature PID operation in the prior art.
  • the initial frequency of the disk temperature PID operation may be a set initial frequency.
  • the initial frequency of the disk temperature PID calculation is to determine the current operating frequency of the compressor when the indoor temperature is not greater than the first indoor temperature threshold and the dual PID control is to be performed.
  • the first target frequency obtained by the room temperature PID operation and the larger of the second target frequencies obtained by the disk temperature PID calculation are selected as the indoor unit frequency, and the compressor of the air conditioner is controlled according to the indoor unit frequency.
  • the specific process of frequency control of the air conditioner compressor based on the indoor unit frequency refers to the prior art.
  • the air conditioner When the air conditioner is heated and controlled by the above process, if the indoor temperature is not greater than the first indoor temperature threshold, indicating that the current indoor temperature is low, dual PID control will be performed, and a larger frequency obtained by the room temperature PID operation and the disk temperature PID operation is selected.
  • the value control compressor makes the compressor run at high frequency when the indoor temperature is low, so that the indoor temperature rises rapidly to a suitable high temperature, and the higher set coil target temperature can be used as a control target, so that the air conditioner is The outlet air temperature is not too low, which effectively solves the problem that the indoor temperature rises slowly and the lower temperature of the air blows out, causing the heating body to feel uncomfortable.
  • the dual PID control even when the indoor temperature is low, the lower indoor target temperature is set due to the user's erroneous operation, and the compression can be controlled in the case where the disk temperature PID calculation obtains a large frequency value.
  • the high-frequency operation of the machine, and the indoor temperature is raised to a suitable high temperature, further improving the heating performance of the air conditioner.
  • FIG. 2 there is shown a flow chart of another embodiment of the air conditioner heating control method based on the present invention.
  • Step 21 The air conditioner is heated to obtain the indoor temperature, and the indoor temperature is compared with the first indoor temperature threshold.
  • the indoor temperature refers to the indoor temperature of the room in which the air conditioner is located in real time according to the set frequency when the air conditioner is turned on and the heating mode is operated.
  • the indoor temperature can be obtained by using the prior art.
  • the inlet air temperature is detected and acquired as a room temperature by a temperature sensor disposed at or near the air inlet of the air conditioner.
  • the room temperature is then compared to a first temperature threshold.
  • the first indoor temperature threshold is a default temperature value preset in the control program when the air conditioner is shipped from the factory, or may be a temperature value set by the air conditioner user. If it is set by the user, it is recommended that the air conditioner recommend a reference temperature value for the user's reference.
  • the preset first indoor temperature threshold or the recommended first indoor temperature threshold is 20 °C.
  • Step 22 Determine whether the indoor temperature is greater than the first indoor temperature threshold. If yes, go to step 26; otherwise, go to step 23.
  • Step 23 Perform dual PID control.
  • step 22 determines that the indoor temperature is not greater than the first indoor temperature threshold, then a dual PID control process is performed.
  • the specific process and method of dual PID control can be referred to the description of the embodiment of FIG. 1.
  • Step 24 Acquire the indoor temperature, and compare the indoor temperature with the second indoor temperature threshold.
  • the indoor temperature is still acquired in real time, and the acquired indoor temperature is compared with the second indoor temperature threshold.
  • the second indoor temperature threshold is used as a threshold temperature for exiting the dual PID control, similar to the first indoor temperature threshold, and the second indoor temperature threshold is also a default temperature value preset in the control program when the air conditioner is shipped from the factory. It is a temperature value set by the air conditioner user. If it is set by the user, it is recommended that the air conditioner recommend a reference temperature value for the user's reference.
  • the preset second indoor temperature threshold or the recommended second indoor temperature threshold is 25 °C.
  • Step 25 Determine whether the indoor temperature is greater than the second indoor temperature threshold. If yes, go to step 26; otherwise, go to step 23.
  • step 23 If the indoor temperature is not greater than the second indoor temperature threshold, then go to step 23 to continue performing dual PID control. If the indoor temperature is greater than the second indoor temperature threshold, the dual PID control is to be exited, and the control of step 26 is performed. The purpose is to prevent the high frequency operation and avoid the compressor after the indoor temperature reaches a suitable second indoor temperature. Downtime due to temperature.
  • Step 26 Perform room temperature PID control.
  • This step is selected for execution based on the judgment result of step 22 or step 25. Specifically, if it is determined in step 22 that the indoor temperature before entering the double PID control is greater than the first indoor temperature threshold, the double PID control is not performed, but the room temperature PID control is performed. That is, if the indoor temperature is greater than the first indoor temperature threshold, indicating that the indoor temperature is not low, in this case, the coil temperature is not considered, and the conventional room temperature PID control is used to calculate the indoor temperature and the set indoor target temperature. The temperature difference is obtained, the indoor temperature difference is obtained, the room temperature PID calculation is performed according to the indoor temperature difference, the first target frequency is obtained, the first target frequency is used as the indoor unit frequency, and the compressor of the air conditioner is controlled according to the indoor unit frequency.
  • step 25 If it is determined in step 25 that the indoor temperature during the execution of the dual PID control is greater than the second indoor temperature threshold, the dual PID control will be exited and the room temperature PID control process will be transferred. That is, if the indoor temperature is greater than the second indoor temperature threshold during the dual PID control process, in order to avoid the temperature shutdown, the coil temperature is no longer considered, and the room temperature PID control is used to calculate the indoor temperature and the set indoor target temperature. The temperature difference between the two is obtained, and the indoor temperature difference is obtained. The room temperature PID calculation is performed according to the indoor temperature difference to obtain the first target frequency, and the first target frequency is used as the indoor unit frequency, and the compressor of the air conditioner is controlled according to the indoor unit frequency.
  • FIG. 3 there is shown a block diagram showing the structure of an air conditioner heating control apparatus according to the present invention.
  • the structural units included in the control device of this embodiment As shown in FIG. 3, the structural units included in the control device of this embodiment, the functions of each structural unit, and the relationship between each other are as follows:
  • the indoor temperature acquiring unit 31 is configured to acquire the indoor temperature.
  • the room temperature PID calculation unit 32 is configured to calculate a temperature difference between the indoor temperature acquired by the indoor temperature acquiring unit 31 and the set indoor target temperature, obtain an indoor temperature difference, and perform a room temperature PID calculation according to the indoor temperature difference to obtain and output a first target frequency. .
  • the coil temperature acquiring unit 33 is configured to acquire the coil temperature of the indoor heat exchanger.
  • the disk temperature PID calculation unit 34 is configured to calculate a temperature difference between the coil temperature acquired by the coil temperature acquiring unit 33 and the target coil temperature, obtain a coil temperature difference, and perform a disk temperature PID calculation according to the coil temperature difference. Obtain and output a second target frequency.
  • the temperature comparison unit 35 is configured to compare the magnitudes of the indoor temperature and the indoor temperature threshold acquired by the indoor temperature acquisition unit 31 and output a comparison result.
  • the dual PID control unit 36 is configured to select the first target frequency output by the room temperature PID operation unit 32 and the output of the disk temperature PID operation unit 34 when the output result of the temperature comparison unit 35 is that the indoor temperature is not greater than the first indoor temperature threshold.
  • the larger of the two target frequencies is used as the indoor unit frequency, and the compressor 37 of the air conditioner is controlled in accordance with the indoor unit frequency.
  • the heating control device of the above structure can be applied to an air conditioner, runs a corresponding software program, and performs heating control according to the flow of FIG. 1 to solve the problem that the indoor temperature rises slowly and the lower temperature of the air blows out, causing the heating body to feel no Comfortable problems improve the heating performance of air conditioners.
  • FIG. 4 there is shown a block diagram showing another embodiment of an air conditioner heating control apparatus based on the present invention.
  • the structural units included in the control device of this embodiment As shown in FIG. 4, the structural units included in the control device of this embodiment, the functions of each structural unit, and the relationship between each other are as follows:
  • the indoor temperature acquiring unit 41 is configured to acquire the indoor temperature.
  • the room temperature PID calculation unit 42 is configured to calculate a temperature difference between the indoor temperature acquired by the indoor temperature acquiring unit 41 and the set indoor target temperature, obtain an indoor temperature difference, and perform a room temperature PID calculation according to the indoor temperature difference to obtain and output a first target frequency. .
  • the coil temperature acquiring unit 43 is configured to acquire the coil temperature of the indoor heat exchanger.
  • the disk temperature PID calculation unit 44 is configured to calculate a temperature difference between the coil temperature acquired by the coil temperature acquiring unit 43 and the target coil temperature, obtain a coil temperature difference, and perform a disk temperature PID calculation according to the coil temperature difference. Obtain and output a second target frequency.
  • the temperature comparison unit 45 is configured to compare the magnitudes of the indoor temperature and the indoor temperature threshold acquired by the indoor temperature acquisition unit 41 and output a comparison result.
  • the dual PID control unit 46 is configured to select the first target frequency output by the room temperature PID operation unit 42 and the output of the disk temperature PID operation unit 44 when the output result of the temperature comparison unit 45 is that the indoor temperature is not greater than the first indoor temperature threshold.
  • the larger of the two target frequencies is used as the indoor unit frequency, and the compressor 47 of the air conditioner is controlled in accordance with the indoor unit frequency.
  • the room temperature PID control unit 48 has two functions: first, before the double PID control unit 46 does not perform the dual PID control, when the output of the temperature comparison unit 45 is that the indoor temperature is greater than the first indoor temperature threshold, the room temperature PID is The first target frequency output from the arithmetic unit 42 is the indoor unit frequency, and the compressor 47 is controlled in accordance with the indoor unit frequency.
  • the indoor temperature acquiring unit 41 still acquires the indoor temperature in real time and transmits it to the temperature comparing unit 45; the output result of the temperature comparing unit 45 is that the indoor temperature is greater than the second indoor
  • the room temperature PID control unit 48 operates again, and the first target frequency output from the room temperature PID arithmetic unit 42 is used as the indoor unit frequency, and the compressor 47 is controlled in accordance with the indoor unit frequency.
  • the heating control device of the above structure can be applied to an air conditioner, runs a corresponding software program, and performs heating control according to the flow of FIG. 2, and solves the problem that the indoor temperature rises slowly and the lower temperature of the air blows out, causing the heating body to feel no Comfortable problems improve the heating performance of air conditioners.

Abstract

一种空调器及其制热控制方法和控制装置,控制方法包括:空调器制热运行,获取室内温度,与第一室内温度阈值作比较;若室内温度不大于第一室内温度阈值,执行双重PID控制:计算室内温度与设定室内目标温度之间的温差,获得室内温差,根据室内温差进行室温PID运算,获得第一目标频率;计算盘管温度与设定盘管目标温度之间的温差,获得盘管温差,根据盘管温差进行盘温PID运算,获得第二目标频率;选取第一目标频率和第二目标频率中的较大值作为室内机频率,控制空调器的压缩机。该方法可以解决现有空调器制热慢而导致制热不舒适的问题。

Description

空调器制热控制方法、控制装置及空调器 技术领域
本发明属于空气调节技术领域,具体地说,是涉及空调器及其控制,更具体地说,是涉及空调器制热控制方法、控制装置及空调器。
背景技术
在寒冷的冬天,空调器是不具备供暖条件的地区或者停止供暖的寒冷天气里取暖的主要方式。
现有空调器在制热运行时,均是根据室内温度与设定的室内目标温度的差值进行压缩机频率控制。如果根据室内温度与设定的室内目标温度的差值得到的压缩机频率不够大,室内温度上升慢,在开机后很长时间内室内温度仍较低,不能快速使人感觉舒适,尤其是在室内温度较低的情况下,等待室内温度舒适的时间更长。
因此,解决空调器制热慢而导致不舒适的问题,是提高空调器性能的关键。
发明内容
本发明的目的是提供一种空调器制热控制方法及控制装置,解决现有空调器制热慢而导致制热不舒适的问题。
为实现上述发明目的,本发明提供的制热控制方法采用下述技术方案予以实现:
一种空调器制热控制方法,所述方法包括:
空调器制热运行,获取室内温度,将所述室内温度与第一室内温度阈值作比较;
若所述室内温度不大于所述第一室内温度阈值,执行下述的双重PID控制:
计算所述室内温度与设定室内目标温度之间的温差,获得室内温差,根据所述室内温差进行室温PID运算,获得第一目标频率;获取室内换热器的盘管温度,计算所述盘管温度与设定盘管目标温度之间的温差,获得盘管温差,根据所述盘管温差进行盘温PID运算,获得第二目标频率;选取所述第 一目标频率和所述第二目标频率中的较大值作为室内机频率,根据所述室内机频率控制空调器的压缩机。
如上所述的控制方法,若所述室内温度大于所述第一室内温度阈值,执行下述的室温PID控制:
将所述第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
如上所述的控制方法,所述方法还包括:
在执行所述双重PID控制时,实时获取所述室内温度,并将所述室内温度与第二室内温度阈值作比较;所述第二室内温度阈值大于所述第一室内温度阈值;
若所述室内温度大于所述第二室内温度阈值,退出所述双重PID控制。
如上所述的控制方法,在退出所述双重PID控制之后,执行下述的室温PID控制:
将所述第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
如上所述的控制方法,在执行所述双重PID控制时,获取所述压缩机的当前运行频率,将所述当前运行频率作为所述盘温PID运算的初始频率,根据所述初始频率和所述盘温PID运算的结果确定所述第二目标频率。
为实现前述发明目的,本发明提供的制热控制装置采用下述技术方案予以实现:
一种空调器制热控制装置,所述装置包括:
室内温度获取单元,用于获取室内温度;
盘管温度获取单元,用于获取室内换热器的盘管温度;
室温PID运算单元,用于计算所述室内温度与设定室内目标温度之间的温差,获得室内温差,根据所述室内温差进行室温PID运算,获得并输出第一目标频率;
盘温PID运算单元,用于计算所述盘管温度与设定盘管目标温度之间的温差,获得盘管温差,根据所述盘管温差进行盘温PID运算,获得并输出第二目标频率;
温度比较单元,用于比较所述室内温度与室内温度阈值的大小并输出比较结果;
双重PID控制单元,用于在所述温度比较单元的输出结果为所述室内温度不大于第一室内温度阈值时,选取所述第一目标频率和所述第二目标频率中的较大值作为室内机频率,根据所述室内机频率控制空调器的压缩机。
如上所述的控制装置,所述装置还包括:
室温PID控制单元,用于至少在所述温度比较单元的输出结果为所述室内温度大于所述第一室内温度阈值时,将所述第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
如上所述的控制装置,在所述双重PID控制单元执行双重PID控制时,所述室内温度获取单元仍实时获取所述室内温度,若所述温度比较单元的输出结果为所述室内温度大于第二室内温度阈值,所述双重PID控制单元退出控制;所述第二室内温度阈值大于所述第一室内温度阈值。
如上所述的控制装置,所述装置还包括:
室温PID控制单元,用于至少在所述温度比较单元的输出结果为所述室内温度大于第二室内温度阈值、所述双重PID控制单元退出控制后,将所述第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
本发明还提供了一种具有上述空调器制热控制装置的空调器。
与现有技术相比,本发明的优点和积极效果是:本发明通过设置室内温度阈值,在空调器制热运行时,如果室内温度不大于室内温度阈值,执行双重PID控制,选取室温PID运算和盘温PID运算得到的较大频率值控制压缩机,既能够在室内温度低的情况下使得室内温度快速上升,又能够使得空调器的出风温度不会过低,有效解决了室内温度上升缓慢及较低温度的出风吹出而引起制热体感不舒适的问题,提高了空调器制热运行性能。
结合附图阅读本发明的具体实施方式后,本发明的其他特点和优点将变得更加清楚。
附图说明
图1是基于本发明空调器制热控制方法一个实施例的流程图;
图2是基于本发明空调器制热控制方法另一个实施例的流程图;
图3是基于本发明空调器制热控制装置一个实施例的结构框图;
图4是基于本发明空调器制热控制装置另一个实施例的结构框图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下将结合附图和实施例,对本发明作进一步详细说明。
请参见图1,该图所示为基于本发明空调器制热控制方法一个实施例的流程图。
如图1所示,该实施例实现制热控制的具体过程如下:
步骤11:空调器制热运行,获取室内温度,将室内温度与第一室内温度阈值作比较。
具体来说,室内温度是指在空调器开机并运行制热模式时、按照设定采用频率实时获取的空调器所处房间的室内温度。该室内温度的获取可以采用现有技术来实现,例如,通过设置在空调进风口处或靠近空调进风口的位置的温度传感器检测和获取进风温度,作为室内温度。
然后,将室内温度与第一温度阈值作比较。其中,第一室内温度阈值作为是否执行双重PID控制的阈值温度,是空调器出厂时预置在控制程序中的一个默认温度值,也可以是由空调器用户自行设定的一个温度值。如果是由用户自行设定,优选空调器推荐一个参考温度值,供用户参考。优选的,预置的第一室内温度阈值或推荐的第一室内温度阈值为20℃。
步骤12:在室内温度不大于第一室内温度阈值时,执行双重PID控制。
其中,双重PID控制具体包括:
计算室内温度与设定室内目标温度之间的温差,获得室内温差,根据室内温差进行室温PID运算,获得第一目标频率。室内温度是步骤11所获取的室内温度,设定室内目标温度是指用户设定的、期望室内所达到的目标温度。而根据室内温差进行室温PID运算、获得对压缩机进行控制的目标频率的具体方法可以采用现有技术来实现,在此不作详细阐述和限定。
同时,获取室内换热器的盘管温度,计算盘管温度与设定盘管目标温度之间的温差,获得盘管温差,根据盘管温差进行盘温PID运算,获得第二目标频率。室内换热器的盘管温度是按照设定采用频率所获取的、室内机换热器的盘管温度。盘管温度的获取可以通过在换热器盘管上设置温度传感器检测获取。设定盘管目标温度是期望室内换热器所能达到的盘管目标温度,可以是出厂时预置在控制程序中的一个默认温度值,也可以是由空调器用户自行设定的一个温度值。如果是由用户自行设定,优选空调器推荐一个参考温 度值,供用户参考。优选的,预置的设定盘管目标温度或推荐的设定盘管目标温度范围是42-56℃,优选值为50℃。盘温PID运算获得对压缩机进行控制的目标频率的方法可以参考现有技术中的室温PID运算而获得压缩机目标频率的方法。其中,盘温PID运算的初始频率可以为一个设定的初始频率。优选的,盘温PID运算的初始频率为确定室内温度不大于第一室内温度阈值、要执行双重PID控制时压缩机的当前运行频率。
然后,选取室温PID运算获得的第一目标频率和盘温PID运算获得的第二目标频率中的较大值作为室内机频率,根据室内机频率控制空调器的压缩机。根据室内机频率对空调器压缩机进行频率控制的具体过程参考现有技术。
采用上述过程对空调器进行制热控制时,如果室内温度不大于第一室内温度阈值,表明当前室内温度较低,将执行双重PID控制,选取室温PID运算和盘温PID运算得到的较大频率值控制压缩机,在室内温度低的时候使得压缩机以高频运行,使得室内温度快速上升至较适宜的高温,又可以利用较高的设定盘管目标温度作为控制目标,使得空调器的出风温度不会过低,有效解决了室内温度上升缓慢及较低温度的出风吹出而引起制热体感不舒适的问题。而且,通过采用双重PID控制,即使在室内温度较低时因为用户误操作而设定了较低的室内目标温度的情况下,也能在盘温PID运算得到较大频率值的情况下控制压缩机高频运行,而将室内温度提升至适宜的高温,进一步提升了空调器制热运行性能。
请参见图2,该图所示为基于本发明空调器制热控制方法另一个实施例的流程图。
如图2所示,该实施例实现制热控制的具体过程如下:
步骤21:空调器制热运行,获取室内温度,将室内温度与第一室内温度阈值作比较。
具体来说,室内温度是指在空调器开机并运行制热模式时、按照设定采用频率实时获取的空调器所处房间的室内温度。该室内温度的获取可以采用现有技术来实现,例如,通过设置在空调进风口处或靠近空调进风口的位置的温度传感器检测和获取进风温度,作为室内温度。
然后,将室内温度与第一温度阈值作比较。其中,第一室内温度阈值是空调器出厂时预置在控制程序中的一个默认温度值,也可以是由空调器用户 自行设定的一个温度值。如果是由用户自行设定,优选空调器推荐一个参考温度值,供用户参考。优选的,预置的第一室内温度阈值或推荐的第一室内温度阈值为20℃。
步骤22:判断室内温度是否大于第一室内温度阈值。若是,转至步骤26;否则,执行步骤23。
步骤23:执行双重PID控制。
如果步骤22判定室内温度不大于第一室内温度阈值,则执行双重PID控制过程。双重PID控制的具体过程和方法可参考图1实施例的描述。
步骤24:获取室内温度,将室内温度与第二室内温度阈值作比较。
具体来说,在执行双重PID控制的过程中,仍实时获取室内温度,并将所获取的室内温度与第二室内温度阈值作比较。其中,第二室内温度阈值作为是否退出双重PID控制的阈值温度,与第一室内温度阈值类似的,第二室内温度阈值也是空调器出厂时预置在控制程序中的一个默认温度值,也可以是由空调器用户自行设定的一个温度值。如果是由用户自行设定,优选空调器推荐一个参考温度值,供用户参考。优选的,预置的第二室内温度阈值或推荐的第二室内温度阈值为25℃。
步骤25:判断室内温度是否大于第二室内温度阈值。若是,转至步骤26;否则,转至步骤23。
如果室内温度不大于第二室内温度阈值,则转至步骤23,继续执行双重PID控制。而如果室内温度大于第二室内温度阈值,则要退出双重PID控制,转至步骤26的控制,目的是在室内温度达到较为适宜的第二室内温度之后,不再强制高频运行,避免压缩机因达温而停机。
步骤26:执行室温PID控制。
该步骤根据步骤22或步骤25的判断结果选择执行。具体来说,如果步骤22中判定在进入双重PID控制之前的室内温度大于第一室内温度阈值,则不执行双重PID控制,而是执行室温PID控制。也即,如果室内温度大于第一室内温度阈值,表明室内温度不是较低,此情况下,不考虑盘管温度,而采用常规的室温PID控制,计算室内温度与设定室内目标温度之间的温差,获得室内温差,根据室内温差进行室温PID运算,获得第一目标频率,将第一目标频率作为室内机频率,根据室内机频率控制空调器的压缩机。如果步骤25中判定在执行双重PID控制过程中的室内温度大于第二室内温度 阈值,将退出双重PID控制,且转入室温PID控制过程。也即,如果在双PID控制过程中室内温度大于了第二室内温度阈值,为避免达温停机,不再考虑盘管温度,而采用常规的室温PID控制,计算室内温度与设定室内目标温度之间的温差,获得室内温差,根据室内温差进行室温PID运算,获得第一目标频率,将第一目标频率作为室内机频率,根据室内机频率控制空调器的压缩机。
采用该图2实施例执行空调器制热控制的其他技术效果,可参考图1实施例的描述。
请参见图3,该图所示为基于本发明空调器制热控制装置一个实施例的结构框图。
如图3所示,该实施例的控制装置所包括的结构单元、每个结构单元的功能及相互之间的关系如下:
室内温度获取单元31,用于获取室内温度。
室温PID运算单元32,用于计算室内温度获取单元31获取到的室内温度与设定室内目标温度之间的温差,获得室内温差,并根据室内温差进行室温PID运算,获得并输出第一目标频率。
盘管温度获取单元33,用于获取室内换热器的盘管温度。
盘温PID运算单元34,用于计算盘管温度获取单元33获取到的盘管温度与设定盘管目标温度之间的温差,获得盘管温差,并根据盘管温差进行盘温PID运算,获得并输出第二目标频率。
温度比较单元35,用于比较室内温度获取单元31所获取到的室内温度与室内温度阈值的大小并输出比较结果。
双重PID控制单元36,用于在温度比较单元35的输出结果为室内温度不大于第一室内温度阈值时,选取室温PID运算单元32输出的第一目标频率和盘温PID运算单元34输出的第二目标频率中的较大值作为室内机频率,根据室内机频率控制空调器的压缩机37。
上述结构的制热控制装置可以应用在空调器中,运行相应的软件程序,并按照图1的流程执行制热控制,解决室内温度上升缓慢及较低温度的出风吹出而引起制热体感不舒适的问题,提高空调器制热运行性能。
请参见图4,该图所示为基于本发明空调器制热控制装置另一个实施例的结构框图。
如图4所示,该实施例的控制装置所包括的结构单元、每个结构单元的功能及相互之间的关系如下:
室内温度获取单元41,用于获取室内温度。
室温PID运算单元42,用于计算室内温度获取单元41获取到的室内温度与设定室内目标温度之间的温差,获得室内温差,并根据室内温差进行室温PID运算,获得并输出第一目标频率。
盘管温度获取单元43,用于获取室内换热器的盘管温度。
盘温PID运算单元44,用于计算盘管温度获取单元43获取到的盘管温度与设定盘管目标温度之间的温差,获得盘管温差,并根据盘管温差进行盘温PID运算,获得并输出第二目标频率。
温度比较单元45,用于比较室内温度获取单元41所获取到的室内温度与室内温度阈值的大小并输出比较结果。
双重PID控制单元46,用于在温度比较单元45的输出结果为室内温度不大于第一室内温度阈值时,选取室温PID运算单元42输出的第一目标频率和盘温PID运算单元44输出的第二目标频率中的较大值作为室内机频率,根据室内机频率控制空调器的压缩机47。
室温PID控制单元48,其功能包括两方面:其一,在双重PID控制单元46未执行双重PID控制之前,在温度比较单元45的输出结果为室内温度大于第一室内温度阈值时,将室温PID运算单元42输出的第一目标频率作为室内机频率,根据室内机频率控制压缩机47。其二,在双重PID控制单元46执行双重PID控制的过程中,室内温度获取单元41仍实时获取室内温度并传输至温度比较单元45;在温度比较单元45的输出结果为室内温度大于第二室内温度阈值、且双重PID控制单元46退出控制后,室温PID控制单元48再动作,将室温PID运算单元42输出的第一目标频率作为室内机频率,根据室内机频率控制压缩机47。
上述结构的制热控制装置可以应用在空调器中,运行相应的软件程序,并按照图2的流程执行制热控制,解决室内温度上升缓慢及较低温度的出风吹出而引起制热体感不舒适的问题,提高空调器制热运行性能。
以上实施例仅用以说明本发明的技术方案,而非对其进行限制;尽管参照前述实施例对本发明进行了详细的说明,对于本领域的普通技术人员来说,依然可以对前述实施例所记载的技术方案进行修改,或者对其中部分技 术特征进行等同替换;而这些修改或替换,并不使相应技术方案的本质脱离本发明所要求保护的技术方案的精神和范围。

Claims (10)

  1. 一种空调器制热控制方法,其特征在于,所述方法包括:
    空调器制热运行,获取室内温度,将所述室内温度与第一室内温度阈值作比较;
    若所述室内温度不大于所述第一室内温度阈值,执行下述的双重PID控制:
    计算所述室内温度与设定室内目标温度之间的温差,获得室内温差,根据所述室内温差进行室温PID运算,获得第一目标频率;获取室内换热器的盘管温度,计算所述盘管温度与设定盘管目标温度之间的温差,获得盘管温差,根据所述盘管温差进行盘温PID运算,获得第二目标频率;选取所述第一目标频率和所述第二目标频率中的较大值作为室内机频率,根据所述室内机频率控制空调器的压缩机。
  2. 根据权利要求1所述的控制方法,其特征在于,若所述室内温度大于所述第一室内温度阈值,执行下述的室温PID控制:
    将所述第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
  3. 根据权利要求1所述的控制方法,其特征在于,所述方法还包括:
    在执行所述双重PID控制时,实时获取所述室内温度,并将所述室内温度与第二室内温度阈值作比较;所述第二室内温度阈值大于所述第一室内温度阈值;
    若所述室内温度大于所述第二室内温度阈值,退出所述双重PID控制。
  4. 根据权利要求3所述的控制方法,其特征在于,在退出所述双重PID控制之后,执行下述的室温PID控制:
    将所述第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
  5. 根据权利要求1至4中任一项所述的控制方法,其特征在于,在执行所述双重PID控制时,获取所述压缩机的当前运行频率,将所述当前运行频 率作为所述盘温PID运算的初始频率,根据所述初始频率和所述盘温PID运算的结果确定所述第二目标频率。
  6. 一种空调器制热控制装置,其特征在于,所述装置包括:
    室内温度获取单元,用于获取室内温度;
    盘管温度获取单元,用于获取室内换热器的盘管温度;
    室温PID运算单元,用于计算所述室内温度与设定室内目标温度之间的温差,获得室内温差,根据所述室内温差进行室温PID运算,获得并输出第一目标频率;
    盘温PID运算单元,用于计算所述盘管温度与设定盘管目标温度之间的温差,获得盘管温差,根据所述盘管温差进行盘温PID运算,获得并输出第二目标频率;
    温度比较单元,用于比较所述室内温度与室内温度阈值的大小并输出比较结果;
    双重PID控制单元,用于在所述温度比较单元的输出结果为所述室内温度不大于第一室内温度阈值时,选取所述第一目标频率和所述第二目标频率中的较大值作为室内机频率,根据所述室内机频率控制空调器的压缩机。
  7. 根据权利要求6所述的控制装置,其特征在于,所述装置还包括:
    室温PID控制单元,用于至少在所述温度比较单元的输出结果为所述室内温度大于所述第一室内温度阈值时,将所述第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
  8. 根据权利要求6所述的控制装置,其特征在于,在所述双重PID控制单元执行双重PID控制时,所述室内温度获取单元仍实时获取所述室内温度,若所述温度比较单元的输出结果为所述室内温度大于第二室内温度阈值,所述双重PID控制单元退出控制;所述第二室内温度阈值大于所述第一室内温度阈值。
  9. 根据权利要求8所述的控制装置,其特征在于,所述装置还包括:
    室温PID控制单元,用于至少在所述温度比较单元的输出结果为所述室内温度大于第二室内温度阈值、所述双重PID控制单元退出控制后,将所述 第一目标频率作为所述室内机频率,根据所述室内机频率控制空调器的压缩机。
  10. 一种空调器,其特征在于,所述空调器包括有上述权利要求6至9中任一项所述的空调器制热控制装置。
PCT/CN2018/078033 2017-03-30 2018-03-05 空调器制热控制方法、控制装置及空调器 WO2018177079A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710199518.6A CN107036236B (zh) 2017-03-30 2017-03-30 空调器制热控制方法、控制装置及空调器
CN201710199518.6 2017-03-30

Publications (1)

Publication Number Publication Date
WO2018177079A1 true WO2018177079A1 (zh) 2018-10-04

Family

ID=59533932

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/078033 WO2018177079A1 (zh) 2017-03-30 2018-03-05 空调器制热控制方法、控制装置及空调器

Country Status (2)

Country Link
CN (1) CN107036236B (zh)
WO (1) WO2018177079A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107036236B (zh) * 2017-03-30 2020-03-31 青岛海尔空调器有限总公司 空调器制热控制方法、控制装置及空调器
CN108105966A (zh) * 2017-10-31 2018-06-01 青岛海尔空调器有限总公司 空调器制冷控制方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175493A (ja) * 2007-01-19 2008-07-31 Hitachi Plant Technologies Ltd 空気温度制御装置および制御方法
CN104697109A (zh) * 2014-12-22 2015-06-10 青岛海尔空调器有限总公司 制冷控制方法、控制装置及变频空调
CN104713196A (zh) * 2014-12-22 2015-06-17 青岛海尔空调器有限总公司 变频空调制冷控制方法、控制装置及变频空调
CN104764151A (zh) * 2015-03-27 2015-07-08 武汉海尔电器股份有限公司 一种空调控制方法
CN105042795A (zh) * 2015-08-31 2015-11-11 青岛海尔空调器有限总公司 壁挂式变频空调器控制方法
CN107036236A (zh) * 2017-03-30 2017-08-11 青岛海尔空调器有限总公司 空调器制热控制方法、控制装置及空调器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08128705A (ja) * 1994-10-28 1996-05-21 Matsushita Electric Ind Co Ltd 空気調和機の運転制御装置
JP3224079B2 (ja) * 1995-12-29 2001-10-29 ダイキン工業株式会社 空気調和機
JPH10220844A (ja) * 1997-02-08 1998-08-21 Sanyo Electric Co Ltd マルチエアコンシステムの能力制御方法
JP3868265B2 (ja) * 2001-10-31 2007-01-17 ダイキン工業株式会社 空気調和機
JP2009092337A (ja) * 2007-10-11 2009-04-30 Panasonic Corp 空気調和機
JP6071823B2 (ja) * 2013-09-18 2017-02-01 三菱電機株式会社 空気調和機及び空気調和システム
CN104110776B (zh) * 2013-09-29 2017-02-01 美的集团股份有限公司 一种空调系统及其控制方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008175493A (ja) * 2007-01-19 2008-07-31 Hitachi Plant Technologies Ltd 空気温度制御装置および制御方法
CN104697109A (zh) * 2014-12-22 2015-06-10 青岛海尔空调器有限总公司 制冷控制方法、控制装置及变频空调
CN104713196A (zh) * 2014-12-22 2015-06-17 青岛海尔空调器有限总公司 变频空调制冷控制方法、控制装置及变频空调
CN104764151A (zh) * 2015-03-27 2015-07-08 武汉海尔电器股份有限公司 一种空调控制方法
CN105042795A (zh) * 2015-08-31 2015-11-11 青岛海尔空调器有限总公司 壁挂式变频空调器控制方法
CN107036236A (zh) * 2017-03-30 2017-08-11 青岛海尔空调器有限总公司 空调器制热控制方法、控制装置及空调器

Also Published As

Publication number Publication date
CN107036236B (zh) 2020-03-31
CN107036236A (zh) 2017-08-11

Similar Documents

Publication Publication Date Title
CN107101329B (zh) 空调器制热运行控制方法和控制装置
WO2018177080A1 (zh) 空调器制热控制方法和控制装置
CN107062549B (zh) 空调器制热运行控制方法
CN107014036B (zh) 制热控制方法、制热控制装置及空调器
EP3564596B1 (en) Control method for a heating operation of an air-conditioner
WO2019144940A1 (zh) 一种基于温冷感的空调器控制方法和空调器
WO2019042042A1 (zh) 一种空调的控制方法及装置
CN106482294B (zh) 空调运行控制方法
CN105571068A (zh) 空调器工作控制方法及装置
WO2018177079A1 (zh) 空调器制热控制方法、控制装置及空调器
WO2018196579A1 (zh) 制热控制方法、控制装置和空调器
WO2018196577A1 (zh) 一种空调器制热控制方法
JP7173907B2 (ja) 空調機の予冷運転又は予暖運転の運転条件を決定する機械学習装置
WO2018176620A1 (zh) 空调器及其制热控制方法和控制装置
WO2019144939A1 (zh) 一种基于温冷感的空调器控制方法和空调器
CN107152752B (zh) 空调器制热控制方法、控制装置
CN107023939B (zh) 空调器制热控制方法及控制装置
CN107084489B (zh) 空调器制热控制方法
CN107084487B (zh) 空调器的制热控制方法和控制装置
JP5879516B2 (ja) 空気調和機
JP2021105485A (ja) 空気調和機、および空気調和システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18774550

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18774550

Country of ref document: EP

Kind code of ref document: A1