WO2024027318A1

WO2024027318A1 - Air conditioner, constant air volume control method and device therefor, and storage medium

Info

Publication number: WO2024027318A1
Application number: PCT/CN2023/097573
Authority: WO
Inventors: 钟明胜
Original assignee: 广东美的暖通设备有限公司; 合肥美的暖通设备有限公司
Priority date: 2022-07-30
Filing date: 2023-05-31
Publication date: 2024-02-08
Also published as: CN117515815A

Abstract

An air conditioner, a constant air volume control method and device therefor, and a storage medium, relating to the technical field of air conditioner control. The method comprises: acquiring a current rotational speed and a current power of an indoor fan according to an air volume instruction (S11); determining a rotational speed adjustment amount according to the current power, the current rotational speed and a target power, the target power being determined by the air volume instruction (S13); and adjusting the current rotational speed by means of the rotational speed adjustment amount so that the air volume outputted by the indoor fan matches the air volume instruction (S15).

Description

空调器及其恒风量控制方法、装置、存储介质Air conditioner and constant air volume control method, device and storage medium thereof

相关申请的交叉引用Cross-references to related applications

本申请要求于2022年07月30日提交的申请号为202210908751.8，名称为“风管式空调器及其恒风量控制方法、装置、存储介质”的中国专利申请的优先权，其全部内容通过引用结合在本公开中。This application claims priority to the Chinese patent application with application number 202210908751.8 submitted on July 30, 2022, titled "Duct Air Conditioner and Constant Air Volume Control Method, Device, and Storage Medium", the entire content of which is incorporated by reference incorporated in this disclosure.

技术领域Technical field

本公开涉及空调控制技术领域，尤其涉及一种空调器及其恒风量控制方法、装置、存储介质。The present disclosure relates to the technical field of air conditioning control, and in particular to an air conditioner and its constant air volume control method, device, and storage medium.

背景技术Background technique

空调器是现代家庭常用的制冷设备，经常处于长时间工作状态，热交换器会因长时间的工作而积累很多灰尘，从而导致静压增加，输出的风量减小，制冷效果变差。而且，安装出风口的风管长短、高度不一致，也会导致静压增加，风量减小，导致热交换器无法充分热交换，降低能效比，减弱制冷效果。Air conditioners are commonly used refrigeration equipment in modern households. They often work for a long time. The heat exchanger will accumulate a lot of dust due to long-term work, which will lead to an increase in static pressure, a decrease in the output air volume, and a deterioration of the cooling effect. Moreover, the inconsistent length and height of the air ducts installed with the air outlets will also cause the static pressure to increase and the air volume to decrease, causing the heat exchanger to be unable to fully exchange heat, reducing the energy efficiency ratio and weakening the cooling effect.

公开内容public content

本公开旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本公开的第一个目的在于提出一种空调器的恒风量控制方法，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。The present disclosure aims to solve one of the technical problems in the related art, at least to a certain extent. To this end, the first purpose of the present disclosure is to propose a constant air volume control method for an air conditioner, which can determine the rotational speed adjustment amount based on the current power, the current rotational speed and the target power, and then adjust the current rotational speed to obtain the air volume command corresponding to the current rotational speed. Matching air volume, so that even if the static pressure changes, the air volume output by the indoor fan can be maintained, ensuring the heat exchange effect, and the method is simple and reliable.

本公开的第二个目的在于提出一种空调器。The second object of the present disclosure is to provide an air conditioner.

本公开的第三个目的在于提出一种计算机可读存储介质。A third object of the present disclosure is to provide a computer-readable storage medium.

本公开的第四个目的在于提出一种空调器的恒风量控制装置。The fourth object of the present disclosure is to provide a constant air volume control device for an air conditioner.

为达上述目的，本公开第一方面实施例提出了一种空调器的恒风量控制方法，包括：根据风量指令获取室内风机的当前转速和当前功率；根据当前功率、当前转速和目标功率确定转速调节量，目标功率由风量指令确定；利用转速调节量对当前转速进行调节以使得室内风机输出的风量与风量指令相匹配。In order to achieve the above purpose, the first embodiment of the present disclosure proposes a constant air volume control method for an air conditioner, which includes: obtaining the current rotation speed and current power of the indoor fan according to the air volume command; and determining the rotation speed according to the current power, current rotation speed and target power. Adjustment amount, the target power is determined by the air volume command; use the speed adjustment amount to adjust the current speed so that the air volume output by the indoor fan matches the air volume command.

根据本公开实施例的空调器的恒风量控制方法，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。According to the constant air volume control method of the air conditioner according to the embodiment of the present disclosure, the rotation speed adjustment amount can be determined according to the current power, the current rotation speed and the target power, and then the current rotation speed can be adjusted to obtain the air volume matching the air volume command. It can also maintain the air volume output by the indoor fan despite pressure changes, ensuring the heat exchange effect, and the method is simple and reliable.

为达上述目的，本公开第二方面实施例提出了一种空调器，包括存储器、处理器及存储在存储器上并可在处理器上运行的空调器的恒风量控制程序，处理器执行空调器的恒风量控制程序时，实现上述任一实施例的空调器的恒风量控制方法。In order to achieve the above object, a second embodiment of the present disclosure provides an air conditioner, including a memory, a processor and a storage device. The constant air volume control program of the air conditioner is on the memory and can be run on the processor. When the processor executes the constant air volume control program of the air conditioner, the constant air volume control method of the air conditioner in any of the above embodiments is implemented.

根据本公开实施例的空调器，采用上述的空调器的恒风量控制方法，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。According to the air conditioner according to the embodiment of the present disclosure, the above-mentioned constant air volume control method of the air conditioner can be used to determine the rotation speed adjustment amount according to the current power, the current rotation speed and the target power, and then the current rotation speed can be adjusted to obtain the air volume command matching This way, even if the static pressure changes, the air volume output by the indoor fan can be maintained, ensuring the heat exchange effect, and the method is simple and reliable.

为达上述目的，本公开第三方面实施例提出了一种计算机可读存储介质，其上存储有空调器的恒风量控制程序，该空调器的恒风量控制程序被处理器执行时实现上述任一实施例的空调器的恒风量控制方法。In order to achieve the above object, the third embodiment of the present disclosure proposes a computer-readable storage medium on which a constant air volume control program of an air conditioner is stored. When the constant air volume control program of the air conditioner is executed by a processor, any of the above is achieved. A constant air volume control method for an air conditioner according to an embodiment.

根据本公开实施例的计算机可读存储介质，采用上述的空调器的恒风量控制方法，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。According to the computer-readable storage medium of the embodiment of the present disclosure, using the above-mentioned constant air volume control method of an air conditioner, the rotation speed adjustment amount can be determined according to the current power, the current rotation speed and the target power, and then the current rotation speed can be adjusted to obtain the air volume instruction. Matching air volume, so that even if the static pressure changes, the air volume output by the indoor fan can be maintained, ensuring the heat exchange effect, and the method is simple and reliable.

为达上述目的，本公开第四方面实施例提出了一种空调器的恒风量控制装置，包括：获取单元，用于根据风量指令获取室内风机的当前转速和当前功率；控制单元，用于根据当前功率、当前转速和目标功率确定转速调节量，并利用转速调节量对当前转速进行调节以使得室内风机输出的风量与风量指令相匹配，目标功率由风量指令确定。In order to achieve the above purpose, the fourth embodiment of the present disclosure proposes a constant air volume control device for an air conditioner, including: an acquisition unit for obtaining the current rotation speed and current power of the indoor fan according to the air volume instruction; a control unit for obtaining the current rotation speed and current power of the indoor fan according to the air volume instruction; The current power, current speed and target power determine the speed adjustment amount, and the speed adjustment amount is used to adjust the current speed so that the air volume output by the indoor fan matches the air volume command. The target power is determined by the air volume command.

根据本公开实施例的空调器的恒风量控制装置，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。According to the constant air volume control device of the air conditioner according to the embodiment of the present disclosure, the rotation speed adjustment amount can be determined based on the current power, the current rotation speed and the target power, and the current rotation speed can be adjusted to obtain an air volume that matches the air volume command. It can also maintain the air volume output by the indoor fan despite pressure changes, ensuring the heat exchange effect, and the method is simple and reliable.

本公开附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本公开的实践了解到。Additional aspects and advantages of the disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the disclosure.

附图说明Description of drawings

本公开的上述和/或附加的方面和优点从结合下面附图对实施方式的描述中将变得明显和容易理解，其中：The above and/or additional aspects and advantages of the present disclosure will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

图1为根据本公开一些实施例的空调器的恒风量控制方法的流程示意图；Figure 1 is a schematic flowchart of a constant air volume control method for an air conditioner according to some embodiments of the present disclosure;

图2为根据本公开一些实施例的当前转速和当前功率的获取流程示意图；Figure 2 is a schematic flowchart of obtaining current rotation speed and current power according to some embodiments of the present disclosure;

图3为根据本公开一些实施例的转速调节量的获取示意图；Figure 3 is a schematic diagram of obtaining the rotation speed adjustment amount according to some embodiments of the present disclosure;

图4为根据本公开一些实施例的空调器的恒风量控制装置的结构示意图。Figure 4 is a schematic structural diagram of a constant air volume control device of an air conditioner according to some embodiments of the present disclosure.

具体实施方式 Detailed ways

下面详细描述本公开的实施例，实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。Embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present disclosure and are not to be construed as limitations of the present disclosure.

图1为根据本公开一些实施例的空调器的恒风量控制方法的流程示意图。参考图1所示，该空调器的恒风量控制方法可以包括：Figure 1 is a schematic flowchart of a constant air volume control method for an air conditioner according to some embodiments of the present disclosure. Referring to Figure 1, the constant air volume control method of the air conditioner may include:

S11，根据风量指令获取室内风机的当前转速和当前功率。S11: Obtain the current speed and current power of the indoor fan according to the air volume command.

S13，根据当前功率、当前转速和目标功率确定转速调节量，目标功率由风量指令确定。S13: Determine the speed adjustment amount based on the current power, current speed and target power. The target power is determined by the air volume command.

S15，利用转速调节量对当前转速进行调节以使得室内风机输出的风量与风量指令相匹配。S15, use the rotational speed adjustment amount to adjust the current rotational speed so that the air volume output by the indoor fan matches the air volume command.

上述恒风量控制方法，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。The above constant air volume control method can determine the speed adjustment amount based on the current power, current speed and target power, and then adjust the current speed to obtain an air volume that matches the air volume command. In this way, the indoor fan can be maintained even if the static pressure changes. The output air volume ensures the heat exchange effect, and the method is simple and reliable.

具体地，空调器可为风管式空调器等，风管式空调器可以是配置鼠笼式风轮的风管机，或者其他类型的风管机。风管机可以是嵌入式风管机。风管机可以包括本体和设置在本体内的室内换热器和室内风机。室内风机包括电机和风轮，电机用于带风轮转动。本体设有出风口和回风口。其中，当室内换热器因长时间的工作而积累很多灰尘，或者因安装出风口的风管长短、高度不一致等，导致静压增加时，室内风机输出的风量将减小，进而导致换热效果变差。Specifically, the air conditioner may be a duct air conditioner, etc. The air duct air conditioner may be an air duct machine equipped with a squirrel cage type wind wheel, or other types of air duct machines. The duct machine can be an embedded duct machine. The air duct machine may include a main body, an indoor heat exchanger and an indoor fan arranged in the main body. The indoor fan includes a motor and a wind wheel, and the motor is used to rotate the wind wheel. The main body is equipped with an air outlet and a return air outlet. Among them, when the indoor heat exchanger accumulates a lot of dust due to long-term operation, or when the static pressure increases due to inconsistent lengths and heights of the air ducts installed with the air outlets, the air volume output by the indoor fan will decrease, resulting in heat exchange The effect becomes worse.

因此，在静压发生变化时，可以给定一个风量指令，并基于该风量指令对室内风机进行控制，具体可以是基于风量指令获取室内风机的当前转速和当前功率，并确定目标功率，而后根据当前功率、当前转速和目标功率确定转速调节量，进而根据转速调节量对当前转速进行调节，使得室内风机输出的风量与风量指令相匹配，这样即使静压变化，也能够维持室内风机输出的风量。本实施方式的恒风量控制方法，能够在静压发生变化时，基于风量指令维持室内风机的风量，从而保证了换热效果，且方法简单可靠。Therefore, when the static pressure changes, an air volume command can be given, and the indoor fan can be controlled based on the air volume command. Specifically, the current speed and current power of the indoor fan can be obtained based on the air volume command, and the target power can be determined, and then the indoor fan can be controlled based on the air volume command. The current power, current speed and target power determine the speed adjustment amount, and then adjust the current speed according to the speed adjustment amount so that the air volume output by the indoor fan matches the air volume command, so that even if the static pressure changes, the air volume output by the indoor fan can be maintained. . The constant air volume control method of this embodiment can maintain the air volume of the indoor fan based on the air volume command when the static pressure changes, thereby ensuring the heat exchange effect, and the method is simple and reliable.

在一些实施方式中，如图2所示，根据风量指令获取室内风机的当前转速和当前功率，包括：In some implementations, as shown in Figure 2, obtaining the current rotation speed and current power of the indoor fan according to the air volume instruction includes:

S21，根据风量指令，以预设转速控制室内风机运行。S21, according to the air volume command, control the operation of the indoor fan at the preset speed.

S22，在室内风机以预设转速运行预设时长后，检测室内风机的当前转速和当前功率。如此，可以简单准确地获得室内风机的当前转速和当前功率。S22: After the indoor fan runs for a preset time at a preset speed, detect the current speed and current power of the indoor fan. In this way, the current speed and current power of the indoor fan can be obtained simply and accurately.

具体地，预设转速可以预先设定，预设转速可以是在室内风机的转速范围内的一个转速。在接收到风量指令时，获取预设转速，并控制室内风机按照预设转速运行，以及在室内风机按照预设转速运行预设时长后，获取当前转速和当前功率。其中，预设时长可以预先设定，例如，预设时长为2分钟，即室内风机以预设转速运行2分钟，获取当前转速和当前功率。预设时长可大于室内风机启动后转速趋于稳定所需的时长，预设时长的具体数值可以根据实际进行设定，在此不作具体限定。当前转速可基于室内风机的电机位置估算获得，当前功率可基于室内风机的实时电压和电流估算获得。Specifically, the preset rotation speed can be set in advance, and the preset rotation speed can be a rotation speed within the rotation speed range of the indoor fan. When receiving the air volume command, the preset speed is obtained, and the indoor fan is controlled to run at the preset speed. After the indoor fan runs at the preset speed for a preset time, the current speed and current power are obtained. Among them, the preset duration can be set in advance For example, if the preset time is 2 minutes, that is, the indoor fan runs at the preset speed for 2 minutes, and the current speed and current power are obtained. The preset time can be longer than the time required for the indoor fan's rotational speed to stabilize after it is started. The specific value of the preset time can be set according to actual conditions and is not specifically limited here. The current rotation speed can be obtained based on the motor position estimation of the indoor fan, and the current power can be obtained based on the real-time voltage and current estimation of the indoor fan.

在一些实施方式中，预速转速为室内风机的最小转速。由于转速与风量正相关，因而可以从最小转速逐步调整室内风机的转速，也即从最低风量逐步调整室内风机输出的风量，以便能够获得与风量指令相匹配的风量。In some embodiments, the prespeed rotation speed is the minimum rotation speed of the indoor fan. Since the rotation speed is positively related to the air volume, the rotation speed of the indoor fan can be gradually adjusted from the minimum rotation speed, that is, the air volume output by the indoor fan can be gradually adjusted from the minimum air volume, so that the air volume matching the air volume command can be obtained.

在一些实施方式中，转速调节量和功率差值正相关，功率差值为目标功率与当前功率之间的差值。由于转速调节量与功率差值正相关，即功率差值越大，转速调节量越大；功率差值越小，转速调节量越小，因而能够使得功率差值快速达到零或接近零，也即使得室内风机的当前功率快速达到目标功率，而目标功率由风量指令确定，因而可以实现室内风机风量的快速调节。In some implementations, the rotation speed adjustment amount is positively related to the power difference, and the power difference is the difference between the target power and the current power. Since the speed adjustment amount is positively related to the power difference, that is, the greater the power difference, the greater the speed adjustment amount; the smaller the power difference, the smaller the speed adjustment amount, so the power difference can quickly reach zero or close to zero, and That is to say, the current power of the indoor fan can quickly reach the target power, and the target power is determined by the air volume command, so the indoor fan air volume can be quickly adjusted.

在一些实施方式中，转速调节量由一比值确定，比值为功率差值与计算值的比值，计算值由当前功率对当前转速的导数关系确定。如此，可以简单准确地获得转速调节量。In some embodiments, the rotational speed adjustment amount is determined by a ratio, which is the ratio of the power difference to the calculated value. The calculated value is determined by the derivative relationship between the current power and the current rotational speed. In this way, the speed adjustment amount can be obtained simply and accurately.

具体地，如图3所示，横坐标为转速，纵坐标为功率。计算值由当前功率对当前转速的导数关系确定，也即图3所示直线的斜率，由于该斜率等于功率差值△p与转速调节量△n的比值，因而在确定出斜率和功率差值后，可基于斜率和功率差值计算得到转速调节量，如下述公式所示：
△n＝(p^*-p_当前)/((p^*)’) (1)Specifically, as shown in Figure 3, the abscissa is the rotation speed and the ordinate is the power. The calculated value is determined by the derivative relationship between the current power and the current speed, that is, the slope of the straight line shown in Figure 3. Since the slope is equal to the ratio of the power difference Δp to the speed adjustment amount Δn, the slope and power difference are determined After that, the speed adjustment amount can be calculated based on the slope and power difference, as shown in the following formula:
△n＝(p ^* _-pcurrent )/((p ^* )') (1)

其中，△n为转速调节量，△p＝(p^*-p_当前)，△p为功率差值，p^*为目标功率，p_当前为当前功率，(p^*)’为计算值，也即当前功率相对当前转速的导数。Among them, △n is the speed adjustment amount, △p = (p ^* -p _current ), △p is the power difference, p ^* is the target power, p _current is the current power, (p ^* )' is the calculated value, that is The derivative of the current power with respect to the current speed.

具体来说，在图3中，曲线表示风量指令对应的风量Q^*对应的功率与转速的关系，当检测的当前转速为n_当前、当前功率为p_当前时，基于当前转速n_当前以及曲线可计算得到目标功率p^*，并可计算出目标功率p^*与当前功率p_当前之间的功率差值△p，即△p＝p^*-p_当前，同时通过对曲线进行求导可得导数关系(p^*)’，基于导数关系(p^*)’以及功率差值△p即可计算出转速差值△n，即△n＝△p/(p^*)’，最后在当前转速n_当前的基础上加上转速差值△n即可得到室内风机的下一时刻转速指令n_next＝n_当前+△n，进而基于下一时刻转速指令控制室内风机。Specifically, in Figure 3, the curve represents the relationship between the power and rotational speed corresponding to the air volume Q ^* corresponding to the air volume command. When the detected current rotational speed is _ncurrent and the current power is _pcurrent , based on the current rotational speed _ncurrent and the curve, The target power p ^* is calculated, and the power difference Δp between the target power p ^* and the _current power pcurrent can be calculated, that is, Δp=p ^* -pcurrent. At the same _time , the derivative relationship can be obtained by derivation of the curve. (p ^* )', the speed difference △n can be calculated based on the derivative relationship (p ^* )' and the power difference △p, that is, △n=△p/(p ^* )', and finally at the _current speed n Basically, by adding the speed difference △n, the next moment speed command n _next of the indoor fan can be obtained = n _current + △n, and then the indoor fan is controlled based on the next moment speed command.

在一些实施方式中，目标功率是由功率与风量的预设关系和风量指令对应的风量所确定的，其中，功率与风量的预设关系是预先标定的功率与风量的对应关系。如此，基于风量指令对应的风量以及功率与风量的预设关系即可快速准确地获得目标功率。In some embodiments, the target power is determined by a preset relationship between power and air volume and the air volume corresponding to the air volume command, wherein the preset relationship between power and air volume is a pre-calibrated corresponding relationship between power and air volume. In this way, the target power can be obtained quickly and accurately based on the air volume corresponding to the air volume command and the preset relationship between power and air volume.

在一些实施方式中，在功率与风量的预设关系中，功率是根据风量区间的下限值对应的第一功率和第一权重、风量区间的上限值对应的第二功率和第二权重获取，风量区间由风量指令对应的风量决定。In some embodiments, in the preset relationship between power and air volume, the power is based on the first power and the first weight corresponding to the lower limit value of the air volume interval, and the second power and the second weight corresponding to the upper limit value of the air volume interval. Obtain, the air volume interval is determined by the wind The air volume corresponding to the volume command is determined.

具体地，风量区间可预先设置，例如可基于空调器的风量范围进行设置。举例来说，假设空调器的风量范围为[Q_min,Q_max]，其中，Q_max为空调器运行过程中的最大风量，Q_min为空调器运行过程中的最小风量，那么基于风量范围[Q_min,Q_max]可生成至少三个风量值，进而根据至少三个风量值生成风量区间。假设生成三个风量值，分别为Q_a、Q_b和Q_c，且Q_a<Q_min<Q_b<Q_max<Q_c，那么风量区间包括两个，分别为：第一风量区间[Q_a,Q_b]和第二风量区间(Q_b,Q_c]。需要说明的是，空调器的风量范围为[Q_min,Q_max]，是室内风机所能达到的整个风量范围的一个子范围，空调器的风量范围为[Q_min,Q_max]可以针对不同空调器，或空调器不同的使用环境而设置成相同或不同。Specifically, the air volume interval can be set in advance, for example, it can be set based on the air volume range of the air conditioner. For example, assuming that the air volume range of the air conditioner is [Q _min , Q _max ], where Q _max is the maximum air volume during the operation of the air conditioner, and Q _min is the minimum air volume during the operation of the air conditioner, then based on the air volume range [ Q _min , Q _max ] can generate at least three air volume values, and then generate an air volume interval based on at least three air volume values. Assume that three air volume values are generated, namely Q _a , Q _b and Q _c , and Q _a <Q _min <Q _b <Q _max <Q _c , then the air volume interval includes two, respectively: the first air volume interval [Q _a , Q _b ] and the second air volume range (Q _b , Q _c ]. It should be noted that the air volume range of the air conditioner is [Q _min , Q _max ], which is a subsection of the entire air volume range that the indoor fan can achieve. Range, the air volume range of the air conditioner is [Q _min , Q _max ] and can be set to be the same or different for different air conditioners or different use environments of the air conditioners.

在实际应用时，预先将风量区间存储在空调器中，在空调器运行过程中，在获得室内风机的风量指令后，基于风量指令对应的风量以及预先存储的风量区间的边界值确定风量指令所处的风量区间。仍以上述示例为例，假设风量指令对应的风量为Q^*，那么若Q_a≤Q^*≤Q_b，则可以确定风量指令所处风量区间为第一风量区间[Q_a,Q_b]；若Q_b<Q^*≤Q_c，则可以确定风量指令所处风量区间为第二风量区间(Q_b,Q_c]。进而，根据风量区间的下限值对应的第一功率和第一权重、风量区间的上限值对应的第二功率和第二权重，获得功率与风量的预设关系。In practical applications, the air volume interval is stored in the air conditioner in advance. During the operation of the air conditioner, after obtaining the air volume command from the indoor fan, the air volume command is determined based on the air volume corresponding to the air volume command and the boundary value of the pre-stored air volume interval. air volume range. Still taking the above example as an example, assuming that the air volume corresponding to the air volume command is Q ^* , then if Q _a ≤ Q ^* ≤ Q _b , then it can be determined that the air volume interval where the air volume command is located is the first air volume interval [Q _a , Q _b ]; If Q _b <Q ^* ≤ Q _c , it can be determined that the air volume interval in which the air volume command is located is the second air volume interval (Q _b , Q _c ]. Furthermore, according to the first power and the first weight corresponding to the lower limit value of the air volume interval , the second power and the second weight corresponding to the upper limit value of the air volume interval, to obtain the preset relationship between power and air volume.

作为一种示例，第二权重根据风量指令对应的风量与风量区间的下限值的差值与风量区间的上限值与风量区间的下限值的差值的比值确定，即：
h＝(Q^*-Q1)/(Q2-Q1) (2)As an example, the second weight is determined based on the ratio of the difference between the air volume corresponding to the air volume command and the lower limit of the air volume interval and the difference between the upper limit of the air volume interval and the lower limit of the air volume interval, that is:
h＝(Q ^* -Q1)/(Q2-Q1) (2)

其中，h为第二权重，Q^*为风量指令对应的风量，Q1为风量区间的下限值，Q2为风量区间的上限值。对应前述示例，当为第一风量区间[Q_a,Q_b]时，下限值Q1为Q_a，上限值Q2为Q_b；当为第二风量区间(Q_b,Q_c]时，下限值Q1为Q_b，上限值Q2为Q_c。第一权重和第二权重的和为1。Among them, h is the second weight, Q ^* is the air volume corresponding to the air volume command, Q1 is the lower limit of the air volume interval, and Q2 is the upper limit of the air volume interval. Corresponding to the above example, when it is the first air volume interval [Q _a , Q _b ], the lower limit value Q1 is Q _a and the upper limit value Q2 is Q _b ; when it is the second air volume interval (Q _b , Q _c ], The lower limit value Q1 is Q _b and the upper limit value Q2 is Q _c . The sum of the first weight and the second weight is 1.

在第一权重和第二权重确定后，将风量区间的下限值对应的第一功率和第一权重，与风量区间的上限值对应的第二功率和第二权重，进行求和，可以获得功率与风量的预设关系，该预设关系实质为功率与转速的关系，但与风量相关，因此也称为功率与风量的预设关系，即：
p^*＝(1-h)×p1+h×p2 (3)After the first weight and the second weight are determined, the first power and the first weight corresponding to the lower limit of the air volume interval and the second power and the second weight corresponding to the upper limit of the air volume interval are summed. Obtain the preset relationship between power and air volume. This preset relationship is essentially the relationship between power and rotational speed, but it is related to the air volume. Therefore, it is also called the preset relationship between power and air volume, that is:
p ^* =(1-h)×p1+h×p2 (3)

其中，p^*为目标功率，p1第一功率，p2为第二功率，h为第二权重，(1-h)为第一权重。Among them, p ^* is the target power, p1 is the first power, p2 is the second power, h is the second weight, and (1-h) is the first weight.

在一些实施方式中，第一功率和第二功率是根据功率与转速的预设关系和当前转速获取。如此，可以快速得到第一功率和第二功率。In some implementations, the first power and the second power are obtained according to a preset relationship between power and rotational speed and the current rotational speed. In this way, the first power and the second power can be obtained quickly.

需要说明的是，每个风量区间的下限值和上限值分别对应一个功率与转速的预设关系。例如，在前述示例中，第一风量区间[Q_a,Q_b]的下限值为Q_a、上限值为Q_b，那么下限值Q_a和上限值Q_b分别对应一个功率与转速的预设关系；第二风量区间(Q_b,Q_c]的下限值为Q_b、上限值为Q_c，那么下限值Q_b和上限值Q_c分别对应一个功率与转速的预设关系，其中，第一风量区间[Q_a,Q_b]的上限值Q_b和第二风量区间(Q_b,Q_c]的下限值Q_b对应同一个功率与转速的预设关系。It should be noted that the lower limit value and upper limit value of each air volume interval correspond to a preset relationship between power and rotation speed. For example, in the above example, the lower limit value of the first air volume interval [Q _a , Q _b ] is Q _a and the upper limit value is Q _b , then the lower limit value Q _a and The upper limit value Q _b corresponds to a preset relationship between power and speed respectively; the lower limit value of the second air volume interval (Q _b , Q _c ] is Q _b and the upper limit value is Q _c , then the lower limit value Q b and the upper limit value Q _b The limit value Q _c respectively corresponds to a preset relationship between power and rotation speed, where the upper limit value Q _b of the first air volume interval [Q _a , Q _b ] and the lower limit value of the second air volume interval (Q _b , Q _c ] Q _b corresponds to the same preset relationship between power and speed.

在获得当前转速后，根据当前转速以及下限值对应的功率与转速的预设关系即可计算得到第一功率，根据当前转速以及上限值对应的功率与转速的预设关系即可得到第二功率。After obtaining the current rotational speed, the first power can be calculated according to the current rotational speed and the preset relationship between the power and rotational speed corresponding to the lower limit value, and the third power can be obtained according to the current rotational speed and the preset relationship between power and rotational speed corresponding to the upper limit value. Two power.

在一些实施方式中，在功率与转速的预设关系中，功率与常数组和转速相关，常数组预先存储在空调器，常数组包括至少一个常数，每个风量对应一个常数组。如此可以快速获得功率与转速的预设关系，且不会占用计算资源。In some embodiments, in the preset relationship between power and rotational speed, power is related to a constant group and rotational speed. The constant group is pre-stored in the air conditioner. The constant group includes at least one constant, and each air volume corresponds to a constant group. In this way, the preset relationship between power and speed can be quickly obtained without occupying computing resources.

具体地，风量区间的上限值和下限值对应的功率与转速的预设关系可预先通过试验测试获得。例如，基于对室内风机功率和室内风机转速进行分析，可将室内风机的功率与转速的预设关系通过三次多项式进行表达：
p＝ka×n+kb×n^2+kc×n^3 (4)Specifically, the preset relationship between power and rotational speed corresponding to the upper limit and lower limit of the air volume interval can be obtained through experimental testing in advance. For example, based on the analysis of indoor fan power and indoor fan speed, the preset relationship between indoor fan power and speed can be expressed by a cubic polynomial:
p＝ka×n+kb×n^2+kc×n^3 (4)

其中，p为室内风机功率，n为室内风机转速，ka、kb和kc为常数，常数ka、kb和kc可基于试验数据通过曲线拟合方式获得。Among them, p is the indoor fan power, n is the indoor fan speed, ka, kb and kc are constants. The constants ka, kb and kc can be obtained through curve fitting based on the experimental data.

仍以上述示例为例，可先将风量设置为Q_a，测试室内风机功率p随室内风机转速n变化的数据，而后按照上述公式(4)进行曲线拟合，得到风量为Q_a时ka、kb和kc的值；利用同样的方式，可分别得到风量为Q_b和Q_c时ka、kb和kc的值。由此，可以得到每个风量区间的下限值和上限值对应的功率与转速的预设关系。Still taking the above example as an example, you can first set the air volume to Q _a , test the data of indoor fan power p changing with the indoor fan speed n, and then perform curve fitting according to the above formula (4) to _obtain ka, The values of kb and kc; using the same method, the values of ka, kb and kc can be obtained when the air volume is Q _b and Q _c respectively. From this, the preset relationship between power and rotational speed corresponding to the lower limit value and upper limit value of each air volume interval can be obtained.

在实际应用中，预先将每个风量区间的下限值和上限值以及相应的功率与转速的预设关系中的常数作为常数组，对应存储在空调器中，以便在空调器运行过程中，在确定了风量指令所处的风量区间后，基于风量区间的下限值和上限值直接调用相应的常数组，基于常数组中的常数即可得到对应的功率与转速的预设关系，从而能够有效节省***处理器的算力资源和计算时间。In practical applications, the lower limit and upper limit of each air volume interval and the corresponding constants in the preset relationship between power and speed are stored in the air conditioner as a constant group, so that during the operation of the air conditioner, , after determining the air volume interval where the air volume command is located, the corresponding constant group is directly called based on the lower limit value and upper limit value of the air volume interval. Based on the constants in the constant group, the corresponding preset relationship between power and speed can be obtained. This can effectively save the computing power resources and computing time of the system processor.

在一些实施方式中，在室内风机输出的风量与风量指令相匹配的情况下，当前功率等于目标功率。如此在当前功率等于目标功率时，即可认为室内风机输出的风量与风量指令相匹配。需要说明的是，当前功率等于目标功率中的等于可以是完全相等，也可以是两者的差值在设定范围内。In some embodiments, when the air volume output by the indoor fan matches the air volume command, the current power is equal to the target power. In this way, when the current power is equal to the target power, it can be considered that the air volume output by the indoor fan matches the air volume command. It should be noted that the equal between the current power and the target power may be completely equal, or the difference between the two may be within a set range.

在一些示例中，假设风量指令对应的风量Q^*所处风量区间为第一风量区间[Q_a,Q_b]时，可先通过查询方式得到下限值Q_a对应的常数，记为k1、k2和k3，上限值Q_b对应的常数，记为k1’、k2’和k3’；然后，将常数k1、k2和k3代入上述公式(4)得到下限值Q_a对应第一功率，记为p1(其中，k1、k2和k3分别对应公式(4)中的ka、kb和kc)，将常数k1’、 k2’和k3’代入上述公式(4)得到上限值Q_b对应的第二功率，记为p2(其中，k1’、k2’和k3’分别对应公式(4)中的ka、kb和kc)；同时，将风量指令对应的风量Q^*、下限值Q_a和上限值Q_b代入上述公式(2)得到第二权重h；接着，将第二权重h、下限值Q_a对应的第一功率p1和上限值Q_b对应的第二功率p2代入上述公式(3)得到目标功率p^*。需要说明的是，由于此时转速还未参与计算，即为一个未知量，因此目标功率p^*实质为一个表达式，该表达式用于指示风量指令对应的风量Q^*下功率与风量的预设关系，也即功率与转速的关系。In some examples, assuming that the air volume Q ^* corresponding to the air volume command is in the first air volume interval [Q _a , Q _b ], the constant corresponding to the lower limit value Q _a can first be obtained through query, which is recorded as k1, k2 and k3, the constants corresponding to the upper limit value Q _b are recorded as k1', k2' and k3'; then, substitute the constants k1, k2 and k3 into the above formula (4) to obtain the lower limit value Q _a corresponding to the first power, Denoted as p1 (where k1, k2 and k3 correspond to ka, kb and kc in formula (4) respectively), let the constants k1', K2' and k3' are substituted into the above formula (4) to obtain the second power corresponding to the upper limit value Q _b , which is recorded as p2 (where k1', k2' and k3' correspond to ka, kb and kc in formula (4) respectively. ); at the same time, substitute the air volume Q ^* , lower limit value Q _a and upper limit value Q _b corresponding to the air volume command into the above formula (2) to obtain the second weight h; then, the second weight h and the lower limit value Q _a correspond to The first power p1 and the second power p2 corresponding to the upper limit Q _b are substituted into the above formula (3) to obtain the target power p ^* . It should be noted that since the rotational speed has not yet participated in the calculation at this time, it is an unknown quantity, so the target power p ^* is essentially an expression, which is used to indicate the prediction of power and air volume under the air volume Q ^* corresponding to the air volume command. Assume a relationship, that is, the relationship between power and speed.

在获得当前转速n_当前后，将其代入上述(1)计算得到目标功率p^*，此时该值为一个具体数值，并计算其与当前功率p_当前之间的差值得到功率差值p^*-p_当前；同时，对风量指令对应的Q^*下功率与风量的预设关系进行转速求导，即对上述公式(3)进行转速求导(此时当前转速n_当前还未参与计算)得到导数关系(p^*)’，并将当前转速n_当前代入导数关系(p^*)’计算得到计算值；而后，计算功率差值p^*-p_当前与计算值的比值得到转速差值(p^*-p_当前)/((p^*)’)；最后，在当前转速n_当前的基础上加上转速差值(p^*-p_当前)/((p^*)’)即可得到室内风机的下一时刻转速指令n_next。After obtaining the current speed n _current , substitute it into the above (1) to calculate the target power p ^* . At this time, the value is a specific value, and calculate the difference between it and the current power p _current to obtain the power difference p ^* -p _current ; at the same time, perform the speed derivation of the preset relationship between power and air volume under Q ^* corresponding to the air volume command, that is, perform the speed derivation of the above formula (3) (the current speed n has not yet participated in the calculation _at this time) to obtain Derivative relationship (p ^* )', and substitute the current speed n _{into the} derivative relationship (p ^* )' to calculate the calculated value; then, calculate the power difference p ^* - the ratio of _{the current} p to the calculated value to obtain the speed difference (p ^* -p _current )/((p ^* )'); Finally, add the speed difference (p ^* -p _current )/((p ^* )') to the current speed n _current to get the indoor fan's lower speed The speed command n _next at a moment.

进一步的，在获得室内风机的下一时刻转速指令n_next后，根据下一时刻转速指令n_next对室内风机进行控制，直至当前功率p_当前与风量指令对应的风量Q^*对应的目标功率p^*之间的差值接近零或等于零。也就是说，在风量指令对应的风量Q^*确定后，风量指令对应风量Q^*下转速与功率的预设关系即确定，即图3中的曲线确定，通过调整室内风机转速即可使得当前功率p_当前快速接近或等于风量指令对应风量Q^*对应的目标功率p^*，实现了室内风机功率的快速调节，使得室内风机输出的风量与风量指令对应的风量相匹配，即使图3中的当前功率快速接近或位于曲线上，从而实现了室内风机风量的快速调节，有效缩短了空调器恒风量控制过程的调节时长，这样即使因静压增加导致风量减小，也可以通过风量指令使得室内风机风量快速达到风量指令对应的风量，保证了换热效果，且方法简单可靠，同时无需增加硬件成本。Further, after obtaining the next moment speed command n _next of the indoor fan, the indoor fan is controlled according to the next moment speed command n _next until the _current power p reaches the target power p * corresponding to the air volume Q ^* corresponding to the air volume command ^. The difference between them is close to zero or equal to zero. That is to say, after the air volume Q ^* corresponding to the air volume command is determined, the preset relationship between the speed and power under the air volume command corresponding to the air volume Q ^* is determined, that is, the curve in Figure 3 is determined. By adjusting the indoor fan speed, the current power can be p _{is currently} quickly approaching or equal to the target power ^p * corresponding to the air volume Q ^* corresponding to the air volume command, realizing rapid adjustment of the indoor fan power, so that the air volume output by the indoor fan matches the air volume corresponding to the air volume command, even if the current power in Figure 3 Quickly approaching or being on the curve, thereby achieving rapid adjustment of the indoor fan air volume, effectively shortening the adjustment time of the air conditioner's constant air volume control process, so that even if the air volume decreases due to an increase in static pressure, the indoor fan air volume can be adjusted through the air volume command The air volume corresponding to the air volume command is quickly reached to ensure the heat exchange effect, and the method is simple and reliable without increasing hardware costs.

在一些示例中，假设基于空调器的风量范围生成三个风量值，分别为220、330和450，那么可得到两个风量区间，分别为：第一风量区间[220,330]和第二风量区间(330,450]。在每个风量值下，测试不同室内风机转速下的室内风机功率，可得到三个风量值对应的测试数据，如表1所示：In some examples, assuming that three air volume values are generated based on the air volume range of the air conditioner, which are 220, 330 and 450 respectively, then two air volume intervals can be obtained, namely: the first air volume interval [220,330] and the second air volume interval ( 330,450]. Under each air volume value, test the indoor fan power at different indoor fan speeds, and the test data corresponding to the three air volume values can be obtained, as shown in Table 1:

表1

Table 1

通过对表1数据按照上述公式(4)进行曲线拟合，可得到每个风量值对应的转速与功率的预设关系，如表2所示：By performing curve fitting on the data in Table 1 according to the above formula (4), the preset relationship between rotation speed and power corresponding to each air volume value can be obtained, as shown in Table 2:

表2
Table 2

将表2中的常数ka、kb和kc以及风量值对应存储至空调器中。在空调器运行过程中，假设确定的风量指令对应的风量为420，该风量指令对应的风量处于第二风量区间(330,450]，通过查询可得下限值330对应的常数ka、kb和kc为72.7、2.1和0.464，以及上限值450对应的常数ka、kb和kc为144.2、-3.46和0.746，将常数分别代入上述公式(4)可得下限值330对应的第一功率p1＝72.7×n+2.1×n^2+0.464×n^3，以及上限值450对应的第二功率p2＝144.2×n-3.46×n^2+0.746×n^3；同时，根据下限值330、上限值450以及风量指令对应的风量420，通过上述公式(2)计算得到第二权重h，然后将第二权重系h、以及p1和p2代入上述公式(3)可得风量指令对应的风量420下转速与功率的预设关系p^*＝126.2×n-2.07×n^2+0.6755×n^3。通过对p^*求导可得导数关系(p^*)’＝126.2-4.14×n+2.0265×n^2。假设检测的当前转速为n_当前、当前功率为p_当前，那么将当前转速为n_当前代入p^*＝126.2×n-2.07×n^2+0.6755×n^3即可得到目标功率，将当前转速n_当前代入(p^*)’＝126.2-4.14×n+2.0265×n^2即可得到计算值，最后将目标功率、计算值、当前功率p_当前以及当前转速n_当前代入上述公式(1)即可得到转速调节量，进而根据转速调节量以及当前转速n_当前即可得到室内风机的下一时刻转速指令n_next，通过重复该过程即可实现对当前室内风机转速的调整(也可能无需重复一次即可达到)，进而实现对当前室内风机功率的调整，直至当前室内风机输出的风量与风量指令对应的风量420相适配。通过观察调节过程中的数据记录可知，在调节5次后，室内风机风量精度已经达到5％以内，可见，通过迭代少量的次数即可完成恒风量控制的转速调节，从而实现了风量的快速调节。Store the constants ka, kb, kc and air volume values in Table 2 into the air conditioner accordingly. During the operation of the air conditioner, assume that the air volume corresponding to the determined air volume command is 420, and the air volume corresponding to the air volume command is in the second air volume interval (330, 450]. Through query, the constants ka, kb and kc corresponding to the lower limit value 330 can be obtained as 72.7, 2.1 and 0.464, to And the constants ka, kb and kc corresponding to the upper limit value 450 are 144.2, -3.46 and 0.746. Substituting the constants into the above formula (4) respectively, we can get the first power p1 corresponding to the lower limit value 330 = 72.7×n+2.1×n ^2+0.464×n^3, and the second power p2 corresponding to the upper limit value 450=144.2×n-3.46×n^2+0.746×n^3; at the same time, according to the lower limit value 330, the upper limit value 450 and The air volume 420 corresponding to the air volume command is calculated through the above formula (2) to obtain the second weight h, and then the second weight system h, and p1 and p2 are substituted into the above formula (3) to obtain the speed and power at the air volume 420 corresponding to the air volume command. The default relationship p ^* =126.2×n-2.07×n^2+0.6755×n^3. By derivation of p ^* , the derivative relationship (p ^* )'=126.2-4.14×n+2.0265×n^2 can be obtained. Assume that the detected current speed is n _current and the current power is p _current . Then substitute the current speed n _current into p ^* = 126.2×n-2.07×n^2+0.6755×n^3 to get the target power. Substitute n _current into (p ^* )'=126.2-4.14×n+2.0265×n^2 to get the calculated value. Finally, substitute the target power, calculated value, _current power pcurrent and _current speed ncurrent into the above formula (1), that is The speed adjustment amount can be obtained, and then based on the speed adjustment amount and the current speed n, _{the next moment speed command n next} _of the indoor fan can be obtained. By repeating this process, the current indoor fan speed can be adjusted (it may not need to be repeated once) can be achieved), and then adjust the current indoor fan power until the air volume output by the current indoor fan matches the air volume 420 corresponding to the air volume command. By observing the data records during the adjustment process, it can be seen that after 5 adjustments, the air volume accuracy of the indoor fan has reached within 5%. It can be seen that the speed adjustment of constant air volume control can be completed by iterating a small number of times, thereby achieving rapid adjustment of air volume. .

综上所述，根据本公开实施例的空调器的恒风量控制方法，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。To sum up, according to the constant air volume control method of the air conditioner according to the embodiment of the present disclosure, the rotation speed adjustment amount can be determined based on the current power, the current rotation speed and the target power, and the current rotation speed can be adjusted to obtain the air volume matching the air volume command. , so that even if the static pressure changes, the air volume output by the indoor fan can be maintained, ensuring the heat exchange effect, and the method is simple and reliable.

对应上述实施例提供的空调器的恒风量控制方法，本公开的实施例还提供一种空调器，包括存储器、处理器及存储在存储器上并可在处理器上运行的空调器的恒风量控制程序，处理器执行空调器的恒风量控制程序时，实现上述实施的空调器的恒风量控制方法。Corresponding to the constant air volume control method of an air conditioner provided in the above embodiments, embodiments of the present disclosure also provide an air conditioner, including a memory, a processor, and a constant air volume control method for the air conditioner stored in the memory and operable on the processor. Program, when the processor executes the constant air volume control program of the air conditioner, the above implemented constant air volume control method of the air conditioner is implemented.

对应上述实施例提供的空调器的恒风量控制方法，本公开的实施例还提供一种计算机可读存储介质，其上存储有空调器的恒风量控制程序，该空调器的恒风量控制程序被处理器执行时实现上述实施例的空调器的恒风量控制方法。Corresponding to the constant air volume control method of the air conditioner provided in the above embodiments, embodiments of the present disclosure also provide a computer-readable storage medium on which a constant air volume control program of the air conditioner is stored. The constant air volume control program of the air conditioner is When executed by the processor, the constant air volume control method of the air conditioner of the above embodiment is implemented.

根据本公开实施例的计算机可读存储介质，采用上述的空调器的恒风量控制方法，可根据当前功率、当前转速和目标功率确定转速调节量，进而可以对当前转速进行调节而获取与风量指令相匹配的风量，这样即使因静压变化，也能够维持室内风机输出的风量，保证了换热效果，且方法简单可靠。According to the computer-readable storage medium of the embodiment of the present disclosure, using the above-mentioned constant air volume control method of an air conditioner, the rotation speed adjustment amount can be determined according to the current power, the current rotation speed and the target power, and then the current rotation speed can be adjusted to obtain the air volume instruction. Matching air volume, so that even if the static pressure changes, the air volume output by the indoor fan can be maintained to ensure The heat exchange effect is improved, and the method is simple and reliable.

对应上述实施例提供的空调器的恒风量控制方法，本公开的实施例还提供一种空调器的恒风量控制装置。Corresponding to the constant air volume control method for an air conditioner provided in the above embodiments, embodiments of the present disclosure also provide a constant air volume control device for an air conditioner.

图4为根据本公开一些实施例的空调器的恒风量控制装置的结构示意图。如图4所示，该空调器的恒风量控制装置200包括：获取单元210和控制单元220，其中：Figure 4 is a schematic structural diagram of a constant air volume control device of an air conditioner according to some embodiments of the present disclosure. As shown in Figure 4, the constant air volume control device 200 of the air conditioner includes: an acquisition unit 210 and a control unit 220, wherein:

获取单元210用于根据风量指令获取室内风机的当前转速和当前功率；The acquisition unit 210 is used to acquire the current rotation speed and current power of the indoor fan according to the air volume instruction;

控制单元220用于根据当前功率、当前转速和目标功率确定转速调节量，并利用转速调节量对当前转速进行调节以使得室内风机输出的风量与风量指令相匹配，目标功率由风量指令确定。The control unit 220 is used to determine the rotation speed adjustment amount according to the current power, current rotation speed and target power, and use the rotation speed adjustment amount to adjust the current rotation speed so that the air volume output by the indoor fan matches the air volume command. The target power is determined by the air volume command.

具体地，在一些实施方式中，获取单元210可以包括相关传感器以检测室内风机的实时电压、电流和当前转速，并利用室内风机的实时电压和电流来计算当前功率。Specifically, in some embodiments, the acquisition unit 210 may include relevant sensors to detect the real-time voltage, current and current rotation speed of the indoor fan, and calculate the current power using the real-time voltage and current of the indoor fan.

在一些实施方式中，获取单元210也可包括处理器和存储器，处理器执行存储器存储相应的程序来实现获取单元210的功能。In some embodiments, the acquisition unit 210 may also include a processor and a memory, and the processor executes the memory to store corresponding programs to implement the functions of the acquisition unit 210 .

在一些实施方式中，控制单元220可包括处理器和存储器，处理器执行存储器存储相应的程序来实现控制单元220的功能。In some embodiments, the control unit 220 may include a processor and a memory, and the processor executes the memory to store corresponding programs to implement the functions of the control unit 220 .

可以理解，上述获取单元210的处理器和控制单元220的处理器可以是同一个处理器，或不同的处理器，上述获取单元210的存储器和控制单元220的存储器可以是同一个存储器，或不同的存储器，在此不作具体限定。It can be understood that the processor of the acquisition unit 210 and the processor of the control unit 220 may be the same processor or different processors, and the memory of the acquisition unit 210 and the memory of the control unit 220 may be the same memory or different processors. The memory is not specifically limited here.

在一些实施例中，获取单元210用于：根据风量指令，以预设转速控制室内风机运行；在室内风机以预设转速运行预设时长后，检测室内风机的当前转速和当前功率。In some embodiments, the acquisition unit 210 is configured to: control the operation of the indoor fan at a preset speed according to the air volume instruction; and detect the current speed and current power of the indoor fan after the indoor fan runs at the preset speed for a preset time.

在一些实施例中，预速转速为室内风机的最小转速。In some embodiments, the prespeed rotation speed is the minimum rotation speed of the indoor fan.

在一些实施例中，转速调节量和功率差值正相关，功率差值为目标功率与当前功率之间的差值。In some embodiments, the rotation speed adjustment amount is positively related to the power difference, and the power difference is the difference between the target power and the current power.

在一些实施例中，转速调节量由一比值确定，比值为功率差值与计算值的比值，计算值由当前功率对当前转速的导数关系确定。In some embodiments, the rotational speed adjustment amount is determined by a ratio. The ratio is the ratio of the power difference to the calculated value. The calculated value is determined by the derivative relationship between the current power and the current rotational speed.

在一些实施例中，目标功率是由功率与风量的预设关系和风量指令对应的风量所确定的，其中，功率与风量的预设关系是预先标定的功率与风量的对应关系。In some embodiments, the target power is determined by a preset relationship between power and air volume and an air volume corresponding to the air volume command, wherein the preset relationship between power and air volume is a pre-calibrated corresponding relationship between power and air volume.

在一些实施例中，在功率与风量的预设关系中，功率是根据风量区间的下限值对应的第一功率和第一权重、风量区间的上限值对应的第二功率和第二权重获取，风量区间由风量指令对应的风量决定。In some embodiments, in the preset relationship between power and air volume, the power is based on the first power and the first weight corresponding to the lower limit of the air volume interval, and the second power and the second weight corresponding to the upper limit of the air volume interval. Obtained, the air volume interval is determined by the air volume corresponding to the air volume command.

在一些实施例中，第一功率和第二功率是根据功率与转速的预设关系和当前转速获取。In some embodiments, the first power and the second power are obtained according to a preset relationship between power and rotational speed and the current rotational speed.

在一些实施例中，在功率与转速的预设关系中，功率与常数组和转速相关，常数组预先存储在空调器，常数组包括至少一个常数，每个风量对应一个常数组。In some embodiments, in the preset relationship between power and rotational speed, power is related to a constant set and rotational speed, and the constant set is preset Stored in the air conditioner, the constant group includes at least one constant, and each air volume corresponds to a constant group.

在一些实施例中，在室内风机输出的风量与风量指令相匹配的情况下，当前功率等于目标功率。In some embodiments, when the air volume output by the indoor fan matches the air volume command, the current power is equal to the target power.

需要说明的是，关于空调器的恒风量控制装置未披露的细节，请参考空调器的恒风量控制方法所披露的细节，具体这里不再赘述。It should be noted that, regarding the undisclosed details of the constant air volume control device of the air conditioner, please refer to the disclosed details of the constant air volume control method of the air conditioner, which will not be described again here.

需要说明的是，在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行***、装置或设备(如基于计算机的***、包括处理器的***或其他可以从指令执行***、装置或设备取指令并执行指令的***)使用，或结合这些指令执行***、装置或设备而使用。就本说明书而言，“计算机可读介质”可以是任何可以包含、存储、通信、传播或传输程序以供指令执行***、装置或设备或结合这些指令执行***、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(电子装置)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得程序，然后将其存储在计算机存储器中。It should be noted that the logic and/or steps represented in the flowcharts or otherwise described herein, for example, may be considered to be a sequenced list of executable instructions for implementing logical functions, which may be embodied in any computer. in a readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other system that can retrieve and execute instructions from the instruction execution system, apparatus, or device) Used by instruction execution systems, devices or equipment. For the purposes of this specification, a "computer-readable medium" may be any device that can contain, store, communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections with one or more wires (electronic device), portable computer disk cartridges (magnetic device), random access memory (RAM), Read-only memory (ROM), erasable and programmable read-only memory (EPROM or flash memory), fiber optic devices, and portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium may even be paper or other suitable medium on which the program may be printed, as the program may be printed, for example, by optical scanning of the paper or other medium, followed by editing, interpretation, or in other suitable manner if necessary Processing to obtain a program electronically and then store it in computer memory.

应当理解，本公开的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行***执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。It should be understood that various parts of the present disclosure may be implemented in hardware, software, firmware, or combinations thereof. In the above embodiments, various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if it is implemented in hardware, as in another embodiment, it can be implemented by any one or a combination of the following technologies known in the art: a logic gate circuit with a logic gate circuit for implementing a logic function on a data signal. Discrete logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGA), field programmable gate arrays (FPGA), etc.

在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本公开的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合。 In the description of this specification, reference to the terms "one embodiment,""someembodiments,""anexample,""specificexamples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials, or features are included in at least one embodiment or example of the present disclosure. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

此外，本公开实施例中所使用的“第一”、“第二”等术语，仅用于描述目的，而不可以理解为指示或者暗示相对重要性，或者隐含指明本实施例中所指示的技术特征数量。由此，本公开实施例中限定有“第一”、“第二”等术语的特征，可以明确或者隐含地表示该实施例中包括至少一个该特征。在本公开的描述中，词语“多个”的含义是至少两个或者两个及以上，例如两个、三个、四个等，除非实施例中另有明确具体的限定。In addition, terms such as “first” and “second” used in the embodiments of the present disclosure are only used for descriptive purposes and may not be understood to indicate or imply relative importance, or to implicitly indicate what is indicated in this embodiment. number of technical features. Therefore, features defined by terms such as “first” and “second” in the embodiments of the present disclosure may explicitly or implicitly indicate that the embodiment includes at least one of the features. In the description of the present disclosure, the word "plurality" means at least two or two and more, such as two, three, four, etc., unless otherwise clearly and specifically limited in the embodiment.

在本公开中，除非实施例中另有明确的相关规定或者限定，否则实施例中出现的术语“安装”、“相连”、“连接”和“固定”等应做广义理解，例如，连接可以是固定连接，也可以是可拆卸连接，或成一体，可以理解的，也可以是机械连接、电连接等；当然，还可以是直接相连，或者通过中间媒介进行间接连接，或者可以是两个元件内部的连通，或者两个元件的相互作用关系。对于本领域的普通技术人员而言，能够根据具体的实施情况理解上述术语在本公开中的具体含义。In this disclosure, unless there are other clear relevant provisions or limitations in the embodiments, the terms "installation", "connection", "connection" and "fixing" appearing in the embodiments should be understood in a broad sense. For example, connection can It can be a fixed connection, or it can be a detachable connection, or it can be integrated. It can be understood that it can also be a mechanical connection, an electrical connection, etc.; of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be two The internal connection between components, or the interaction between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this disclosure can be understood according to specific implementation conditions.

尽管上面已经示出和描述了本公开的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本公开的限制，本领域的普通技术人员在本公开的范围内可以对上述实施例进行变化、修改、替换和变型。 Although the embodiments of the present disclosure have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and should not be construed as limitations of the present disclosure. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present disclosure. The embodiments are subject to changes, modifications, substitutions and variations.

Claims

一种空调器的恒风量控制方法，包括：A constant air volume control method for an air conditioner, including:

根据风量指令获取室内风机的当前转速和当前功率；Obtain the current speed and current power of the indoor fan according to the air volume command;

根据所述当前功率、所述当前转速和目标功率确定转速调节量，所述目标功率由所述风量指令确定；The rotational speed adjustment amount is determined according to the current power, the current rotational speed and the target power, and the target power is determined by the air volume command;

利用所述转速调节量对所述当前转速进行调节以使得所述室内风机输出的风量与所述风量指令相匹配。The current rotation speed is adjusted using the rotation speed adjustment amount so that the air volume output by the indoor fan matches the air volume command.
根据权利要求1所述的方法，其中，所述根据风量指令获取室内风机的当前转速和当前功率，包括：The method according to claim 1, wherein obtaining the current rotation speed and current power of the indoor fan according to the air volume instruction includes:

根据所述风量指令，以预设转速控制所述室内风机运行；According to the air volume command, control the operation of the indoor fan at a preset speed;

在所述室内风机以所述预设转速运行预设时长后，检测所述室内风机的当前转速和当前功率。After the indoor fan runs for a preset time at the preset rotation speed, the current rotation speed and current power of the indoor fan are detected.
根据权利要求2所述的方法，其中，所述预设转速为所述室内风机的最小转速。The method according to claim 2, wherein the preset rotation speed is the minimum rotation speed of the indoor fan.
根据权利要求1所述的方法，其中，所述转速调节量和功率差值正相关，所述功率差值为所述目标功率与所述当前功率之间的差值。The method according to claim 1, wherein the rotation speed adjustment amount is positively related to a power difference, and the power difference is the difference between the target power and the current power.
根据权利要求4所述的方法，其中，所述转速调节量由一比值确定，所述比值为所述功率差值与计算值的比值，所述计算值由所述当前功率对所述当前转速的导数关系确定。The method according to claim 4, wherein the rotational speed adjustment amount is determined by a ratio, the ratio being the ratio of the power difference to a calculated value, the calculated value being the ratio of the current power to the current rotational speed. The derivative relationship is determined.
根据权利要求1所述的方法，其中，所述目标功率是由功率与风量的预设关系和所述风量指令对应的风量所确定的，其中，所述功率与风量的预设关系是预先标定的功率与风量的对应关系。The method according to claim 1, wherein the target power is determined by a preset relationship between power and air volume and the air volume corresponding to the air volume command, wherein the preset relationship between power and air volume is pre-calibrated The corresponding relationship between power and air volume.
根据权利要求6所述的方法，其中，在所述功率与风量的预设关系中，功率是根据风量区间的下限值对应的第一功率和第一权重、所述风量区间的上限值对应的第二功率和第二权重获取，所述风量区间由所述风量指令对应的风量决定。The method according to claim 6, wherein in the preset relationship between power and air volume, the power is the first power and the first weight corresponding to the lower limit value of the air volume interval and the upper limit value of the air volume interval. The corresponding second power and second weight are obtained, and the air volume interval is determined by the air volume corresponding to the air volume command.
根据权利要求7所述的方法，其中，所述第一功率和所述第二功率是根据功率与转速的预设关系和所述当前转速获取。The method of claim 7, wherein the first power and the second power are obtained according to a preset relationship between power and rotational speed and the current rotational speed.
根据权利要求8所述的方法，其中，在所述功率与转速的预设关系中，所述功率与常数组和转速相关，所述常数组预先存储在所述空调器，所述常数组包括至少一个常数，每个风量对应一个常数组。The method according to claim 8, wherein in the preset relationship between the power and the rotation speed, the power is related to a constant group and the rotation speed, the constant group is pre-stored in the air conditioner, the constant group includes At least one constant, and each air volume corresponds to a constant group.
根据权利要求1所述的方法，其中，在所述室内风机输出的风量与所述风量指令相匹配的情况下，所述当前功率等于所述目标功率。The method according to claim 1, wherein when the air volume output by the indoor fan matches the air volume instruction, the current power is equal to the target power.
一种空调器，包括存储器、处理器及存储在存储器上并可在处理器上运行的空调器的恒风量控制程序，所述处理器执行所述空调器的恒风量控制程序时，实现权利要求1-10任一项所述的空调器的恒风量控制方法。An air conditioner, including a memory, a processor, and an air conditioner stored in the memory and capable of running on the processor When the processor executes the constant air volume control program of the air conditioner, the constant air volume control method of the air conditioner according to any one of claims 1 to 10 is implemented.
一种计算机可读存储介质，其上存储有空调器的恒风量控制程序，所述空调器的恒风量控制程序被处理器执行时实现权利要求1-10任一项所述的空调器的恒风量控制方法。A computer-readable storage medium on which a constant air volume control program of an air conditioner is stored. When the constant air volume control program of the air conditioner is executed by a processor, the constant air volume control program of the air conditioner according to any one of claims 1-10 is realized. Air volume control method.
一种空调器的恒风量控制装置，包括：A constant air volume control device for an air conditioner, including:

获取单元，用于根据风量指令获取室内风机的当前转速和当前功率；An acquisition unit is used to acquire the current rotation speed and current power of the indoor fan according to the air volume instruction;

控制单元，用于根据所述当前功率、所述当前转速和目标功率确定转速调节量，并利用所述转速调节量对所述当前转速进行调节以使得所述室内风机输出的风量与所述风量指令相匹配，所述目标功率由所述风量指令确定。 A control unit configured to determine a rotational speed adjustment amount according to the current power, the current rotational speed and the target power, and use the rotational speed adjustment amount to adjust the current rotational speed so that the air volume output by the indoor fan is consistent with the air volume. The command matches, and the target power is determined by the air volume command.