WO2020077810A1 - Method and apparatus for calculating electricity consumption for central air conditioner, and central air conditioner - Google Patents
Method and apparatus for calculating electricity consumption for central air conditioner, and central air conditioner Download PDFInfo
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- WO2020077810A1 WO2020077810A1 PCT/CN2018/122448 CN2018122448W WO2020077810A1 WO 2020077810 A1 WO2020077810 A1 WO 2020077810A1 CN 2018122448 W CN2018122448 W CN 2018122448W WO 2020077810 A1 WO2020077810 A1 WO 2020077810A1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/60—Energy consumption
Definitions
- the invention relates to a central air conditioner, in particular to a method and device for more accurate calculation of its electricity consumption.
- the central air conditioner has multiple internal units, and the operating conditions of each internal unit are different, and the power consumption is also different.
- multi-connection belongs to a category in central air conditioning, and its "one-to-more" feature also has the problem of amortization of electricity charges. How to allocate the power consumed by the multi-line system to each user reasonably and fairly has always been a problem in the industry. How the billing system calculates the cost is also the focus of users.
- the area allocation method is calculated based on the user's area of use. This method uses a "one size fits all" approach. The applicable conditions are limited, and it is generally only used in large shopping malls, but it has unreasonable disadvantages.
- the calculation of refrigerant flow or water flow is relatively reasonable, but the flow valve needs to be installed, the cost is relatively high, and the cost of the internal machine cannot be shared; the time sharing method is to calculate the cost according to the length of use, but in fact each The parameters such as the mode and temperature set by the machine are inconsistent, and the pressure of the external machine is also different. It is difficult to reasonably allocate the electricity cost of the external machine.
- the above charging methods have various degrees of defects.
- Multi-line power consumption is mainly concentrated on the external and internal machines.
- the external machine's power consumption is easy to confirm (measured by a meter) but not easy to allocate (the external machine is difficult to share).
- the internal machine's power consumption is relatively simple.
- each internal machine can be installed with an electric meter for measurement, but the actual project cannot be operated for the following reasons: 1. The cost is too high, and each internal machine needs to be equipped with an electric meter; 2. The operation is complicated and needs to be confirmed The meter number corresponding to each internal machine; 3. The risk of power outage for each internal machine's independent power supply is high (the user leaves the habit to pull the brake), which affects the system operation.
- the present invention provides a method for calculating the electricity consumption of the central air conditioner, including:
- Step 1 Use the cold / heat cycle system whose central air conditioner can independently complete the work as the minimum charging unit to collect the status information of the minimum charging unit;
- Step 2 In a charging period, the external electricity of the smallest charging unit is counted by the first electricity meter, and the external electricity of the smallest charging unit should be allocated according to the status information; Calculate the total power consumption of all internal units in the minimum charging unit, and calculate the operating power consumption and fixed standby power that each internal unit should share based on the status information;
- Step 3 Add the power of the external machine, the power consumption for operation and the fixed standby power to be shared by each internal machine to obtain the power required by each internal machine in a billing cycle.
- the power required by the i-th internal machine in a billing cycle OP is the power of the external unit of the minimum charging unit
- IP is the total power of all internal units of the minimum charging unit
- T i is the running time of the i-th internal unit of the minimum charging unit
- C i is the The capacity of the i internal machine
- J i is the model characteristic parameter of the i-th internal machine of the smallest charging unit
- T is the time of one charging cycle
- n is a natural number, 0 ⁇ i ⁇ n.
- the method further includes:
- step 2 If they match, go to step 2; if they do not match, perform exception handling.
- the abnormality processing includes determining whether the number of the first and second electric meters is greater than the number of minimum charging units that can normally obtain the status information, and if it is greater, the corresponding minimum charging is counted in step 2 If the electric quantity of the first and second electric meters of the unit is smaller than that, it will remind abnormality.
- step 4 may be included to calculate the electricity charges of each internal machine based on the amount of electricity that each internal machine should bear.
- the invention also proposes a device adopting the above electricity consumption calculation method, including: an electricity meter module for counting the electricity amount of the first and second electricity meters, a unit module for acquiring the state information, and a logic for calculating the electricity amount of each internal machine Operation module.
- it also includes an HMI module that provides a human-computer interaction function.
- the invention also proposes a central air conditioner using the device in the above technical solution.
- the central air conditioner is multi-line.
- the external unit of the minimum charging unit of the central air conditioner may adopt a single module structure or a multi-module structure.
- the invention can adopt an independent charging device, access the internal and external mechanical and electrical meters, and calculate the distribution of power through the capacity demand, which solves the system abnormality caused by the user's power failure when the external machine is measured only. Reduce the equipment cost and debugging difficulty of the household billing system. Moreover, by adopting the charging scheme of the present invention, the unified power supply of the internal and external machines can reduce the system failure rate, and at the same time meet the requirements of household billing. The engineering reduces the difficulty of debugging and improves the engineering efficiency.
- FIG. 1 is a structural diagram of a central system according to an embodiment of the present invention.
- FIG. 2 is a method flowchart of an embodiment of the present invention.
- FIG. 3 is a structural diagram of an embodiment of the present invention.
- any cold / heat cycle system that can independently complete work in the central air conditioner is used as a minimum charging unit to count the power of each internal unit in each minimum charging unit.
- the central air conditioner of a specific embodiment of the present invention is multi-line, which includes a plurality of cold / heat cycle systems (system 1 to system n) that can independently complete work.
- Each system is a minimum charging unit, and each minimum charging unit is provided with two electric meters: a first electric meter and a second electric meter.
- the first electricity meter is connected to the external unit of the smallest charging unit to count the power of the external unit.
- the external unit may have a single module structure or a multi-module structure.
- the second electricity meter is connected to all internal units of the smallest charging unit, and counts the power consumption of all internal units.
- the device of the present invention needs to simultaneously collect the electric quantity changes of the external electromechanical meter and the internal electromechanical meter, then the power consumption of a single cold and heat source system is equal to the external electromechanical meter electric quantity plus the internal electromechanical meter electric quantity.
- the total power of the electromechanical meter needs to be subtracted from the standby power before running and sharing; the third part is the fixed standby power of the internal machine, which is only related to the billing cycle. Then the electric power of each internal machine is composed of the above three parts, and the more accurate electric power that each internal machine needs to bear can be obtained. According to the amount of electricity that each internal machine needs to bear, the electricity charge that each internal machine needs to share can be calculated.
- the charging method of a preferred embodiment of the present invention is based on the above principle, first detecting the air conditioning unit, collecting the status information of the central air conditioner, and simultaneously detecting the first and second electric meters, and checking the first and second electric meters Configuration information to see if the number of meters matches the number of systems that can normally obtain status information (the number of minimum billing units). If it is a match, the data of the first and second electric meters are collected according to the above-mentioned principle and the amount of electricity that each internal machine should bear is calculated, and the electric charge is further calculated. If it does not match, exception handling is performed. Specifically, exception handling depends on whether the number of first and second electric meters corresponds to the number of systems that can normally obtain status information.
- the number of the first and second electric meters will be greater than the number of systems that can normally obtain status information. At this time, it is only necessary to count the electric quantity of the electric meter corresponding to the powered system and calculate the electric charge. If the number of the first and second electric meters is smaller than the number of systems that can normally obtain status information, it means that the configuration does not match and an abnormality needs to be reminded.
- the present invention calculates the power required by the i-th internal unit of a system (smallest charging unit) within a charging period as follows:
- Pow i is the power that the i-th internal unit needs to bear
- OP is the external unit power of the smallest charging unit
- IP is the total power of all internal units of the smallest charging unit
- T i is the i Internal computer running time
- C i is the capacity of the i-th internal unit of the smallest charging unit
- J i is the model characteristic parameter of the i-th internal unit of the smallest charging unit
- T is the time of one charging cycle
- n is Natural number, 0 ⁇ i ⁇ n.
- the billing period is 1 day
- the number of internal machines in the system is 5
- the present invention adopts the above-mentioned method to calculate the power allocation device.
- the specific structure can be designed to include: an electricity meter module, a unit module, a logic operation module, and an HMI module.
- the meter module counts the power of the first and second meters, and the unit module obtains the status information of each system (minimum billing unit), including the running time, capacity, operating status, model characteristics of each internal machine, and so on.
- the logic operation module processes the data of the electricity meter module and the unit module, and calculates the electricity and electricity charges of each internal machine.
- the HMI module can provide interfaces and information for human-computer interaction.
- the present invention also protects the central air conditioner using the above charging device.
- the central air conditioner can be multi-line or other types, and the external unit in the minimum charging unit of the central air conditioner can adopt a single module structure or a multi-module structure, both It can accurately calculate the amount of electricity and electricity charges that each internal machine needs to bear.
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Abstract
A method and apparatus for calculating electricity consumption for a central air conditioner, and a central air conditioner. The method for calculating electricity consumption for a central air conditioner comprises: taking a cold/thermal circulating system of a central air conditioner capable of completing work independently as a minimum charging unit, and acquiring state information of the minimum charging unit; in one charging period, collecting statistics about outdoor unit electricity consumption of the minimum charging unit by means of a first electricity meter, and calculating, according to the state information, outdoor unit electricity consumption that should be shared by each indoor unit of the minimum charging unit; collecting statistics about total electricity consumption of all indoor units in the minimum charging unit by means of a second electricity meter, and calculating, according to the state information, running electricity consumption and fixed standby electricity consumption that should be shared by each indoor unit; and adding the outdoor unit electricity consumption, the running electricity consumption, and the fixed standby electricity consumption that should be shared by each indoor unit to obtain electricity consumption needing to be borne by each indoor unit in one charging period. According to the technical solution, the structure is simple, and more accurate electricity consumption needing to be borne by an indoor unit can be obtained.
Description
本申请要求于2018年10月16日提交中国专利局、申请号为201811204112.3、发明名称为“一种中央空调的用电计算方法、装置及中央空调”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。This application requires the priority of the Chinese patent application submitted to the China Patent Office on October 16, 2018, with the application number 201811204112.3 and the invention titled "A Central Air Conditioning Electricity Calculation Method, Device, and Central Air Conditioning". Incorporated by reference in this application.
本发明涉及中央空调,尤其涉及对其用电进行更加准确计算的方法及装置。The invention relates to a central air conditioner, in particular to a method and device for more accurate calculation of its electricity consumption.
中央空调具有多台内机,每台内机的运行状况不一样,所耗费的电力情况也不一样。以多联机为例,多联机属于中央空调中的一个分类,其“一拖多”的特性也存在电费摊派的问题。如何将多联机***所消耗的电量合理、公平的分摊给各个用户一直都是行业中的难题,计费***是如何计算费用的也是用户的关注重点。The central air conditioner has multiple internal units, and the operating conditions of each internal unit are different, and the power consumption is also different. Taking multi-connection as an example, multi-connection belongs to a category in central air conditioning, and its "one-to-more" feature also has the problem of amortization of electricity charges. How to allocate the power consumed by the multi-line system to each user reasonably and fairly has always been a problem in the industry. How the billing system calculates the cost is also the focus of users.
目前,行业内并没有统一的计费方法,常用的计费方法有面积分摊法、流量分摊法、时间分摊法。面积分摊法以用户的使用面积进行计算,该方法采用“一刀切”的方式适用条件局限,一般只在大型商场使用,但造成用与不用一个样,存在不合理的弊端;流量分摊法采用的是冷媒流量或水流量进行计算,其计费相对合理,但需要安装流量阀,成本相对较高,而且无法分摊内机费用;时间分摊法是按使用时间长短进行费用计算,但实际上每个内机设定的模式、温度等参数并不一致,对外机的压力也不一样,很难合理分配外机的电费。以上计费方法都存在不同程度的缺陷。At present, there is no uniform billing method in the industry. Commonly used billing methods are area allocation method, flow allocation method, and time allocation method. The area allocation method is calculated based on the user's area of use. This method uses a "one size fits all" approach. The applicable conditions are limited, and it is generally only used in large shopping malls, but it has unreasonable disadvantages. The calculation of refrigerant flow or water flow is relatively reasonable, but the flow valve needs to be installed, the cost is relatively high, and the cost of the internal machine cannot be shared; the time sharing method is to calculate the cost according to the length of use, but in fact each The parameters such as the mode and temperature set by the machine are inconsistent, and the pressure of the external machine is also different. It is difficult to reasonably allocate the electricity cost of the external machine. The above charging methods have various degrees of defects.
多联机电能消耗主要集中在外机与内机,其中外机的电能消耗容易确认(通过一个电表计量即可)但并不容易分摊(外机分摊是难点),内机的电能消耗则相对简单,理论上可以每个内机单独安装一个电表进行计量即可,但是实际工程无法操作,原因有以下几点:1、成本过高,需要每个内机配置一个电表; 2、操作复杂,需要确认每个内机对应的电表号;3、每个内机独立供电的断电风险大(用户离开习惯拉闸),影响***运行。Multi-line power consumption is mainly concentrated on the external and internal machines. The external machine's power consumption is easy to confirm (measured by a meter) but not easy to allocate (the external machine is difficult to share). The internal machine's power consumption is relatively simple. In theory, each internal machine can be installed with an electric meter for measurement, but the actual project cannot be operated for the following reasons: 1. The cost is too high, and each internal machine needs to be equipped with an electric meter; 2. The operation is complicated and needs to be confirmed The meter number corresponding to each internal machine; 3. The risk of power outage for each internal machine's independent power supply is high (the user leaves the habit to pull the brake), which affects the system operation.
发明内容Summary of the invention
为了解决上述现有技术中存在的准确计算中央空调各内机应分摊的电量比较困难的问题,本发明提供了一种中央空调的用电计算方法,包括:In order to solve the problem in the prior art that it is difficult to accurately calculate the amount of electricity that should be allocated to each internal unit of the central air conditioner, the present invention provides a method for calculating the electricity consumption of the central air conditioner, including:
步骤1,将中央空调可独立完成工作的冷/热循环***作为最小计费单元,采集最小计费单元的状态信息;Step 1: Use the cold / heat cycle system whose central air conditioner can independently complete the work as the minimum charging unit to collect the status information of the minimum charging unit;
步骤2,在一个计费周期内,通过第一电表统计最小计费单元的外机电量,根据所述状态信息计算最小计费单元的各内机应分摊的外机电量;通过第二电表统计最小计费单元内的所有内机的总电量,根据所述状态信息计算各内机应分摊的运行消耗电量和固定待机电量;Step 2: In a charging period, the external electricity of the smallest charging unit is counted by the first electricity meter, and the external electricity of the smallest charging unit should be allocated according to the status information; Calculate the total power consumption of all internal units in the minimum charging unit, and calculate the operating power consumption and fixed standby power that each internal unit should share based on the status information;
步骤3,将各内机应分摊的外机电量、运行消耗电量以及固定待机电量相加得到各内机在一个计费周期内所需承担的电量。Step 3: Add the power of the external machine, the power consumption for operation and the fixed standby power to be shared by each internal machine to obtain the power required by each internal machine in a billing cycle.
在一个具体实施例中,一个计费周期第i台内机所需承担的电量
其中,OP为最小计费单元的外机电量,IP为最小计费单元的所有内机的总电量,T
i为最小计费单元第i台内机运行时间,C
i为最小计费单元第i台内机的容量,J
i为最小计费单元第i台内机的机型特性参数,T为一个计费周期的时间,n为自然数,0<i<n。
In a specific embodiment, the power required by the i-th internal machine in a billing cycle Among them, OP is the power of the external unit of the minimum charging unit, IP is the total power of all internal units of the minimum charging unit, T i is the running time of the i-th internal unit of the minimum charging unit, and C i is the The capacity of the i internal machine, J i is the model characteristic parameter of the i-th internal machine of the smallest charging unit, T is the time of one charging cycle, n is a natural number, 0 <i <n.
优选的,在所述步骤2之前还包括步骤:Preferably, before the step 2, the method further includes:
检测第一、第二电表与最小计费单元的配置关系是否匹配;Detect whether the configuration relationship between the first and second electricity meters and the minimum charging unit match;
若匹配则执行步骤2;若不匹配则进行异常处理。If they match, go to step 2; if they do not match, perform exception handling.
具体的,所述异常处理包括判断第一、第二电表的数量是否大于可正常获取所述状态信息的最小计费单元的数量,若大于,则在所述步骤2中统计对应的最小计费单元的第一、第二电表的电量,若小于,则进行提醒异常。Specifically, the abnormality processing includes determining whether the number of the first and second electric meters is greater than the number of minimum charging units that can normally obtain the status information, and if it is greater, the corresponding minimum charging is counted in step 2 If the electric quantity of the first and second electric meters of the unit is smaller than that, it will remind abnormality.
进一步,还可以包括步骤4,根据各内机应承担的电量计算各内机的电费。Further, step 4 may be included to calculate the electricity charges of each internal machine based on the amount of electricity that each internal machine should bear.
本发明还提出了采用上述用电计算方法的装置,包括:用于统计所述第一、第二电表电量的电表模块、获取所述状态信息的机组模块、用于计算各内机电量的逻辑运算模块。The invention also proposes a device adopting the above electricity consumption calculation method, including: an electricity meter module for counting the electricity amount of the first and second electricity meters, a unit module for acquiring the state information, and a logic for calculating the electricity amount of each internal machine Operation module.
优选的,还包括提供人机交互功能的HMI模块。Preferably, it also includes an HMI module that provides a human-computer interaction function.
本发明还提出了采用上述技术方案中的装置的中央空调。The invention also proposes a central air conditioner using the device in the above technical solution.
在一个具体实施例中,所述中央空调为多联机。所述中央空调的最小计费单元的外机可以采用单模块结构或者多模块结构。In a specific embodiment, the central air conditioner is multi-line. The external unit of the minimum charging unit of the central air conditioner may adopt a single module structure or a multi-module structure.
本发明可以采用独立的计费装置,接入内机、外机电表,通过能力需求来计算电量分摊的方式,解决了仅外机计量时,内机容易被用户断电导致的***异常,同时降低分户计费***的设备成本及调试难度。而且采用本发明中的计费方案,内机和外机的统一供电,降低***故障率,同时满足分户计费的要求。工程上降低了调试难度,提高工程效率。The invention can adopt an independent charging device, access the internal and external mechanical and electrical meters, and calculate the distribution of power through the capacity demand, which solves the system abnormality caused by the user's power failure when the external machine is measured only. Reduce the equipment cost and debugging difficulty of the household billing system. Moreover, by adopting the charging scheme of the present invention, the unified power supply of the internal and external machines can reduce the system failure rate, and at the same time meet the requirements of household billing. The engineering reduces the difficulty of debugging and improves the engineering efficiency.
下面结合实施例和附图对本发明进行详细说明,其中:The present invention will be described in detail below in conjunction with embodiments and drawings, in which:
图1是本发明一个实施例中央***结构图。FIG. 1 is a structural diagram of a central system according to an embodiment of the present invention.
图2是本发明一个实施例的方法流程图。FIG. 2 is a method flowchart of an embodiment of the present invention.
图3是本发明一个实施例的装置结构图。3 is a structural diagram of an embodiment of the present invention.
下面详细说明本发明的原理及所有实施例。The principle and all embodiments of the present invention are described in detail below.
本发明将中央空调的任意一个可独立完成工作的冷/热循环***作为一个最小计费单元,来统计每一个最小计费单元中的各内机的电量。In the present invention, any cold / heat cycle system that can independently complete work in the central air conditioner is used as a minimum charging unit to count the power of each internal unit in each minimum charging unit.
如图1所示,本发明的一个具体实施例的中央空调为多联机,其包含了多个可独立完成工作的冷/热循环***(***1至***n)。每一个***是一个最小计费单元,每一个最小计费单元内设置两块电表:第一电表和第二电表。第 一电表与最小计费单元的外机连接,统计外机的电量,该外机可以是单模块结构也可以是多模块结构。第二电表与最小计费单元的所有内机连接,统计所有内机的电量。As shown in FIG. 1, the central air conditioner of a specific embodiment of the present invention is multi-line, which includes a plurality of cold / heat cycle systems (system 1 to system n) that can independently complete work. Each system is a minimum charging unit, and each minimum charging unit is provided with two electric meters: a first electric meter and a second electric meter. The first electricity meter is connected to the external unit of the smallest charging unit to count the power of the external unit. The external unit may have a single module structure or a multi-module structure. The second electricity meter is connected to all internal units of the smallest charging unit, and counts the power consumption of all internal units.
本发明的装置需要同时采集外机电表和内机电表的电量变化,则单个冷热源***的耗电量等于外机电表电量加上内机电表电量。The device of the present invention needs to simultaneously collect the electric quantity changes of the external electromechanical meter and the internal electromechanical meter, then the power consumption of a single cold and heat source system is equal to the external electromechanical meter electric quantity plus the internal electromechanical meter electric quantity.
而每个内机在一个计费周期内需要承担的电量有三部分,第一部分为外机耗电量的分摊,其分摊的主要与内机的运行时间、内机容量和内机特性有关,当内机不运行时,其分摊的电量只与内机容量有关(因为Ti=0);第二部分为内机本身的耗电量,由于多个内机共用一块电表,所以内机的电量与内机运行时间、内机容量、内机类型有关,风机功率越大,运行时间越长,则需要分摊的电量越高,假设内机上电状态大概有3W左右的功耗(待机),所以内机电表的总电量需要减去待机电量后,再进行运行分摊;第三部分为内机固定待机电量,只与计费周期有关。则每个内机的电量由以上三个部分组成,可以得到较为准确的各内机所需要承担的电量。根据各内机所需要承担的电量就可以计算出各内机需要分摊的电费。And each internal machine needs to bear three parts of electricity in a billing cycle. The first part is the allocation of external machine power consumption. Its allocation is mainly related to the operating time of the internal machine, internal machine capacity and internal machine characteristics. When the internal unit is not running, its allocated power is only related to the internal unit capacity (because Ti = 0); the second part is the power consumption of the internal unit itself. Since multiple internal units share a single meter, the internal unit's power and Internal machine running time, internal machine capacity, and internal machine type are related. The greater the fan power and the longer the operating time, the higher the amount of power that needs to be allocated. Assuming that the internal machine is powered on, there is about 3W of power consumption (standby). The total power of the electromechanical meter needs to be subtracted from the standby power before running and sharing; the third part is the fixed standby power of the internal machine, which is only related to the billing cycle. Then the electric power of each internal machine is composed of the above three parts, and the more accurate electric power that each internal machine needs to bear can be obtained. According to the amount of electricity that each internal machine needs to bear, the electricity charge that each internal machine needs to share can be calculated.
如图2所示,本发明一较优实施例的计费方法基于上述原理,先检测空调机组,采集中央空调的状态信息,同时检测第一、第二电表,并检查第一、第二电表的配置信息,看看电表数量与可正常获取状态信息的***数量(最小计费单元的数量)是否匹配。若是匹配的话,则按照上述原理采集第一、第二电表的数据并计算各内机应承担的电量,进一步计算电费。若是不匹配的话,则进行异常处理。具体的,异常处理看第一、第二电表的数量与可正常获取状态信息的***的数量是否对应。若是有的***没有上电,也就是说第一、第二电表的数量会大于可正常获取状态信息的***的数量,此时只需要统计上电了的***对应的电表的电量并计算电费。若是第一、第二电表的数量小于正常可获取状态信息的***的数量,则说明配置不匹配,需要提醒异常。As shown in FIG. 2, the charging method of a preferred embodiment of the present invention is based on the above principle, first detecting the air conditioning unit, collecting the status information of the central air conditioner, and simultaneously detecting the first and second electric meters, and checking the first and second electric meters Configuration information to see if the number of meters matches the number of systems that can normally obtain status information (the number of minimum billing units). If it is a match, the data of the first and second electric meters are collected according to the above-mentioned principle and the amount of electricity that each internal machine should bear is calculated, and the electric charge is further calculated. If it does not match, exception handling is performed. Specifically, exception handling depends on whether the number of first and second electric meters corresponds to the number of systems that can normally obtain status information. If some systems are not powered, that is to say, the number of the first and second electric meters will be greater than the number of systems that can normally obtain status information. At this time, it is only necessary to count the electric quantity of the electric meter corresponding to the powered system and calculate the electric charge. If the number of the first and second electric meters is smaller than the number of systems that can normally obtain status information, it means that the configuration does not match and an abnormality needs to be reminded.
在一个具体计算的实施例中,本发明在一个计费周期内计算一个***(最 小计费单元)的第i台内机所需承担的电量的公式为:In a specific calculation embodiment, the present invention calculates the power required by the i-th internal unit of a system (smallest charging unit) within a charging period as follows:
其中,Pow
i为第i台内机所需要承担的电量,OP为最小计费单元的外机电量,IP为最小计费单元的所有内机的总电量,T
i为最小计费单元第i台内机运行时间,C
i为最小计费单元第i台内机的容量,J
i为最小计费单元第i台内机的机型特性参数,T为一个计费周期的时间,n为自然数,0<i<n。
Among them, Pow i is the power that the i-th internal unit needs to bear, OP is the external unit power of the smallest charging unit, IP is the total power of all internal units of the smallest charging unit, and T i is the i Internal computer running time, C i is the capacity of the i-th internal unit of the smallest charging unit, J i is the model characteristic parameter of the i-th internal unit of the smallest charging unit, T is the time of one charging cycle, n is Natural number, 0 <i <n.
假设现在需要计算***1中的内机1需要承担的电量,计费周期为1天,该***内机数量为5,通过以上公式计算出需要承担外机电表电量的0.2同时需要承担内机电表电量的0.3,则内机1承担电量=78*0.2+(25-0.003*24*5)*0.3+0.003*24=23.094度电,如下表1。Suppose now that it is necessary to calculate the amount of electricity that the internal machine 1 in the system 1 needs to bear, the billing period is 1 day, and the number of internal machines in the system is 5, the above formula is used to calculate the amount of electricity required to bear 0.2 If the power is 0.3, the internal unit 1 assumes the power = 78 * 0.2 + (25-0.003 * 24 * 5) * 0.3 + 0.003 * 24 = 23.094 kWh, as shown in Table 1 below.
表1计算演示表Table 1 Calculation demo table
如图3所示,本发明采用了上述方法来进行电量分摊计算的装置,具体结构可以设计为包含:电表模块、机组模块、逻辑运算模块和HMI模块。电表模块统计第一、第二电表的电量,机组模块获取每个***(最小计费单元)的状态信息,包括各内机的运行时间、容量、运行状态、机型特性参数等等。逻辑运算模块则处理电表模块和机组模块的数据,并计算各内机的电量及电费。HMI模块可以提供人机交互的接口及信息。As shown in FIG. 3, the present invention adopts the above-mentioned method to calculate the power allocation device. The specific structure can be designed to include: an electricity meter module, a unit module, a logic operation module, and an HMI module. The meter module counts the power of the first and second meters, and the unit module obtains the status information of each system (minimum billing unit), including the running time, capacity, operating status, model characteristics of each internal machine, and so on. The logic operation module processes the data of the electricity meter module and the unit module, and calculates the electricity and electricity charges of each internal machine. The HMI module can provide interfaces and information for human-computer interaction.
本发明还保护采用上述计费装置的中央空调,该中央空调可以是多联机, 也可以是其他类型,且中央空调的最小计费单元内的外机可以采用单模块结构或者多模块结构,均可以准确计算各内机所需承担的电量及电费。The present invention also protects the central air conditioner using the above charging device. The central air conditioner can be multi-line or other types, and the external unit in the minimum charging unit of the central air conditioner can adopt a single module structure or a multi-module structure, both It can accurately calculate the amount of electricity and electricity charges that each internal machine needs to bear.
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement and improvement made within the spirit and principle of the present invention should be included in the protection of the present invention Within range.
Claims (10)
- 一种中央空调的用电计算方法,其特征在于,包括:A method for calculating the electricity consumption of a central air conditioner, characterized in that it includes:步骤1,将中央空调可独立完成工作的冷/热循环***作为最小计费单元,采集最小计费单元的状态信息;Step 1: Use the cold / heat cycle system whose central air conditioner can independently complete the work as the minimum charging unit to collect the status information of the minimum charging unit;步骤2,在一个计费周期内,通过第一电表统计最小计费单元的外机电量,根据所述状态信息计算最小计费单元的各内机应分摊的外机电量;通过第二电表统计最小计费单元内的所有内机的总电量,根据所述状态信息计算各内机应分摊的运行消耗电量和固定待机电量;Step 2: In a charging period, the external electricity of the smallest charging unit is counted by the first electricity meter, and the external electricity of the smallest charging unit should be allocated according to the status information; Calculate the total power consumption of all internal units in the minimum charging unit, and calculate the operating power consumption and fixed standby power that each internal unit should share based on the status information;步骤3,将各内机应分摊的外机电量、运行消耗电量以及固定待机电量相加得到各内机在一个计费周期内所需承担的电量。Step 3: Add the power of the external machine, the power consumption for operation and the fixed standby power to be shared by each internal machine to obtain the power required by each internal machine in a billing cycle.
- 如权利要求1所述的用电计算方法,其特征在于,一个计费周期第i台内机所需承担的电量 ,其中,OP为最小计费单元的外机电量,IP为最小计费单元的所有内机的总电量,T i为最小计费单元第i台内机运行时间,C i为最小计费单元第i台内机的容量,J i为最小计费单元第i台内机的机型特性参数,T为一个计费周期的时间,n为自然数,0<i<n。 The method for calculating electricity consumption according to claim 1, characterized in that the electricity required by the i-th internal machine in a billing period , Where OP is the power of the external unit of the minimum charging unit, IP is the total power of all internal units of the minimum charging unit, T i is the running time of the i-th internal unit of the minimum charging unit, and C i is the minimum charging unit capacity of the i-th machine, J i is the i-th smallest accounting unit the machine model parameters, T is a cycle of charging time, n-natural number, 0 <i <n.
- 如权利要求1所述的用电计算方法,其特征在于,在所述步骤2之前还包括步骤:The method for calculating electricity consumption according to claim 1, further comprising a step before the step 2:检测第一、第二电表与最小计费单元的配置关系是否匹配;Detect whether the configuration relationship between the first and second electricity meters and the minimum charging unit match;若匹配则执行步骤2;若不匹配则进行异常处理。If they match, go to step 2; if they do not match, perform exception handling.
- 如权利要求3所述的用电计算方法,其特征在于,所述异常处理包括判断第一、第二电表的数量是否大于可正常获取所述状态信息的最小计费单元的数量,若大于,则在所述步骤2中统计对应的最小计费单元的第一、第二电表的电量,若小于,则进行提醒异常。The method for calculating electricity consumption according to claim 3, wherein the exception handling includes determining whether the number of the first and second electricity meters is greater than the number of minimum charging units that can normally obtain the status information, and if so, Then, in step 2, the electric quantity of the first and second electric meters of the corresponding minimum charging unit is counted, and if it is less than that, a reminder exception is generated.
- 如权利要求1所述的用电计算方法,其特征在于,还包括步骤4,根据各内机应承担的电量计算各内机的电费。The method for calculating electricity consumption according to claim 1, further comprising a step 4 of calculating the electricity cost of each internal machine based on the amount of electricity that each internal machine should bear.
- 采用如权利要求1至5任意一项权利要求所述的用电计算方法的装置,包括:用于统计所述第一、第二电表电量的电表模块、获取所述状态信息的机组模块、用于计算各内机电量的逻辑运算模块。The device adopting the electricity consumption calculation method according to any one of claims 1 to 5 includes: an electricity meter module for counting the electricity of the first and second electricity meters, a unit module for acquiring the status information, A logic operation module for calculating the power of each internal unit.
- 如权利要求6所述的装置,其特征在于,还包括提供人机交互功能的HMI模块。The device of claim 6, further comprising an HMI module that provides a human-computer interaction function.
- 采用如权利要求6或7所述的装置的中央空调。A central air conditioner using the device according to claim 6 or 7.
- 如权利要求8所述的中央空调,其特征在于,所述中央空调为多联机。The central air conditioner according to claim 8, wherein the central air conditioner is multi-line.
- 如权利要求8所述的中央空调,其特征在于,所述中央空调的最小计费单元的外机采用单模块结构或者多模块结构。The central air conditioner according to claim 8, wherein the external unit of the minimum charging unit of the central air conditioner adopts a single module structure or a multi-module structure.
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