CN109539483B - Electric quantity calculation method and device and air conditioning system - Google Patents
Electric quantity calculation method and device and air conditioning system Download PDFInfo
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- CN109539483B CN109539483B CN201811271516.4A CN201811271516A CN109539483B CN 109539483 B CN109539483 B CN 109539483B CN 201811271516 A CN201811271516 A CN 201811271516A CN 109539483 B CN109539483 B CN 109539483B
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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
- F24F11/47—Responding to energy costs
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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Abstract
The invention discloses an electric quantity calculation method, an electric quantity calculation device and an air conditioning system, wherein the method is applied to a multi-split air conditioning system and comprises the following steps: calculating the total power consumption of the air conditioning system in a preset time period; and calculating the apportioned electric quantity of the target internal machine in a preset time period according to the total electric consumption quantity and the electric quantity apportionment coefficient of the target internal machine. The invention solves the problem that the multi-split air-conditioning system in the prior art is not reasonable enough in electricity charge sharing, improves the calculation precision of the shared electric quantity and fits the electricity utilization reality.
Description
Technical Field
The invention relates to the technical field of electric energy, in particular to an electric quantity calculating method and device and an air conditioning system.
Background
At present, some places share one multi-online system by multiple users, such as school dormitories and the like. Due to the characteristic of multi-online, multi-online application in the places usually involves a large number of electric meters, and the apportionment of the electric charges is not easy to realize scientific averaging.
For the electric quantity allocation, some users simply allocate the electric quantity on the basis of the principle, and some users try to introduce the capacity ratio of the internal machine, and the capacity of the internal machine is more allocated, but the allocation method is not scientific, or the internal machine which is not started up can not be counted, or the actual operation condition (such as the set temperature of the internal machine) of the internal machine can not be considered.
Aiming at the problem that the electric charge of a multi-split air conditioning system in the related technology is not reasonable enough, an effective solution is not provided at present.
Disclosure of Invention
The invention provides an electric quantity calculation method, an electric quantity calculation device and an air conditioning system, and at least solves the problem that in the prior art, the electric charge of a multi-split air conditioning system is not reasonable enough to be shared.
In order to solve the technical problem, according to an aspect of an embodiment of the present invention, there is provided an electric quantity calculating method applied to a multi-split air conditioning system, including: calculating the total power consumption of the air conditioning system in a preset time period; and calculating the apportioned electric quantity of the target internal machine in a preset time period according to the total electric consumption quantity and the electric quantity apportionment coefficient of the target internal machine.
Further, calculating the apportioned electric quantity of the target internal machine in a preset time period according to the total electric consumption quantity and the electric quantity apportionment coefficient of the target internal machine, and the method comprises the following steps: under different running states of the target internal machine, calculating the electric quantity sharing coefficient of the target internal machine according to a corresponding calculation mode; and calculating the product of the total power consumption and the power sharing coefficient to obtain the shared power of the target internal machine in a preset time period.
Further, the different operating states of the target indoor unit include at least one of: a shutdown state and an operation state; the electric quantity sharing coefficient at least comprises one of the following components: temperature ratio and capacity ratio.
Further, under different operation states of the target internal machine, calculating the electric quantity sharing coefficient of the target internal machine according to a corresponding calculation mode, including: when the target internal machine is in a running state and the electric quantity sharing coefficient is a temperature ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a first calculation mode; the first calculation mode is used for calculating according to the temperature difference of each starting-up internal machine and the temperature difference of a target internal machine, wherein the temperature difference is the difference between a set temperature and an environment temperature; when the target internal machine is in a running state and the electric quantity sharing coefficient is the capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a second calculation mode; the second calculation mode is used for calculating according to the capacity of each starting internal machine and the capacity of the target internal machine; when the target internal machine is in a running state and the electric quantity sharing coefficient is the temperature ratio and the capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a third calculation mode; and the third calculation mode is to calculate the product of the temperature ratio of the target indoor unit and the capacity ratio of the target indoor unit, wherein the temperature ratio of the target indoor unit is calculated according to the first calculation mode, and the capacity ratio of the target indoor unit is calculated according to the second calculation mode.
Further, under different operation states of the target internal machine, calculating the electric quantity sharing coefficient of the target internal machine according to a corresponding calculation mode, including: when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is the temperature ratio, the temperature ratio of the target internal machine is 0; when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is the capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a fourth calculation mode; the fourth calculation mode is calculated according to the running states of other internal machines, the capacity of the target internal machine and the total installed capacity of the internal machines; when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is a temperature ratio and a capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a fifth calculation mode; the fifth calculation mode is to calculate the product of the temperature ratio of the target indoor unit and the capacity ratio of the target indoor unit, the temperature ratio of the target indoor unit is 1, and the capacity ratio of the target indoor unit is calculated according to the fourth calculation mode.
Further, calculating an electric quantity sharing coefficient of the target indoor unit according to a first calculation mode, including: calculating the temperature difference of all the startup internal machines, and taking the average value of the temperature differences; calculating the temperature difference of the target internal machine; and calculating the ratio of the temperature difference of the target internal machine to the average value, and dividing the ratio by the number of all the started internal machines to obtain the electric quantity sharing coefficient of the target internal machine.
Further, calculating the electric quantity sharing coefficient of the target indoor unit according to a second calculation mode, including: calculating the total capacity of all the startup internal machines; and calculating the ratio of the capacity of the target internal machine to the total capacity to obtain the electric quantity sharing coefficient of the target internal machine.
Further, calculating an electric quantity sharing coefficient of the target indoor unit according to a fourth calculation mode, including: judging whether other internal machines operate or not; and when no other internal machine runs, calculating the ratio of the capacity of the target internal machine to the total installed capacity of the internal machine to obtain the electric quantity sharing coefficient of the target internal machine.
Further, calculating the total power consumption of the air conditioning system in a preset time period comprises the following steps: calculating the power consumption of the external machine side, the power consumption of the internal machine side and the power consumption of the controller of the air conditioning system in a preset time period; and adding the power consumption of the outer machine side, the power consumption of the inner machine side and the power consumption of the controller in the preset time period to obtain the total power consumption of the air conditioning system in the preset time period.
Further, the power consumption of the external device side includes at least: compressor power consumption; calculating the compressor power consumption Q1 by the following formula: q1 ═ Un ═ k ═ T1; where Un is equal to E, Un is the voltage of the compressor, E is the induced electromotive force of the compressor, I is the phase current of the compressor, k is the correction coefficient of the compressor, and T1 is the preset time period.
Further, the power consumption of the external device side includes at least: compressor power consumption; calculating the compressor power consumption Q1 by the following formula: q1 ═ Un ═ k ═ T1; wherein Un ═ E + I Rs + L ═ di/dt; e is the induced electromotive force of the compressor, I is the phase current of the compressor, Rs is the winding resistance of the compressor, and L is the inductance of the compressor.
Further, the power consumption of the external device side includes at least: the power consumption of the outdoor fan; calculating the outdoor fan power consumption Q2 by the following formula: q2 ═ r × j × T1; wherein r is the frequency of the outdoor fan, j is the correction coefficient of the outdoor fan, and T1 is the preset time period.
Further, the power consumption of the internal machine side includes at least: the power consumption of the indoor fan; calculating the indoor fan power consumption Q4 by the following formula: q4 ═ T1 (Wr + Wy); wherein Wr is the power of the indoor fan corresponding to the gear of the indoor fan, Wy is the load power of the indoor fan, and T1 is a preset time period.
Further, the power consumption of the indoor unit side further includes: the power consumption Q5 of the water pump; the water pump power consumption Q5 is a fixed value.
Further, the power consumption of the controller includes at least: the power consumption of the main control panel, the power consumption of the compressor control panel, the power consumption of the outdoor fan control panel, the power consumption of the indoor fan control panel and the power consumption of the filter panel; calculating the power consumption of the controller by: acquiring the power of each control panel corresponding to the type of the air conditioning system from a preset information table according to the type of the air conditioning system; calculating the power consumption of each control board according to the power of each control board; and adding the power consumption of the control boards to obtain the power consumption of the controller.
Further, phase current I of the compressor is measured by hall resistance sensors, wherein the compressor is a three-phase compressor, and the hall resistance sensors are located on any two phases of the compressor.
According to another aspect of the embodiments of the present invention, there is provided an electric quantity calculating device applied to a multi-split air conditioning system, including: the total power consumption module is used for calculating the total power consumption of the air conditioning system in a preset time period; and the electric quantity sharing module is used for calculating the electric quantity shared by the target internal machine in a preset time period according to the total electric consumption quantity and the electric quantity sharing coefficient of the target internal machine.
According to still another aspect of the embodiments of the present invention, there is provided an air conditioning system including the electric quantity calculation device as described above.
According to still another aspect of the embodiments of the present invention, there is provided a computer device including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the power calculating method as described above when executing the program.
According to a further aspect of embodiments of the present invention, there is provided a storage medium containing computer-executable instructions for performing the power calculation method as described above when executed by a computer processor.
The invention provides an electric quantity calculation method independent of an electric meter, which calculates the apportioned electric quantity of a target internal machine in a preset time period by calculating the total electric consumption quantity of an air conditioning system in the preset time period and the electric quantity apportionment coefficient of the target internal machine. By the method, the problem of electric charge sharing when one set of multi-split air conditioner is shared is solved by an accurate electric quantity statistical program and a scientific energy consumption distribution method, the electric charge sharing can be realized only by adding a built-in program, an electric meter does not need to be additionally configured, the installation cost is reduced, and meanwhile, the calculation precision is high and the electricity utilization reality is fitted.
Drawings
FIG. 1 is an alternative flow chart of a method of power calculation according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an alternative distribution of Hall resistors according to an embodiment of the invention;
FIG. 3 is an alternative flowchart of a total power consumption calculation method according to an embodiment of the present invention; and
fig. 4 is an alternative block diagram of the power calculating device according to the embodiment of the present invention.
Description of reference numerals:
1. a Hall resistor; 2. a compressor winding; 3. a hall resistor.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
In a preferred embodiment 1 of the present invention, an electric quantity calculating method is provided, where the method may be directly applied to various multi-split air conditioning systems, and in a specific implementation, the method may be implemented by installing software, APP, or writing a corresponding program in a controller in the multi-split air conditioning system. In particular, fig. 1 shows an alternative flow chart of the method, which, as shown in fig. 1, comprises the following steps S102-S104:
s102: calculating the total power consumption of the air conditioning system in a preset time period;
s104: and calculating the apportioned electric quantity of the target internal machine in a preset time period according to the total electric consumption quantity and the electric quantity apportionment coefficient of the target internal machine.
In the foregoing embodiment, an electric quantity calculation method independent of an electric meter is provided, in which the apportioned electric quantity of the target internal machine in the preset time period is calculated by calculating the total electric consumption quantity of the air conditioning system in the preset time period and the electric quantity apportionment coefficient of the target internal machine. By the method, the problem of electric charge sharing when one set of multi-split air conditioner is shared is solved by an accurate electric quantity statistical program and a scientific energy consumption distribution method, the electric charge sharing can be realized only by adding a built-in program, an electric meter does not need to be additionally configured, the installation cost is reduced, and meanwhile, the calculation precision is high and the electricity utilization reality is fitted.
Because the internal unit at least comprises two states: the method comprises the following steps of shutdown state, running state and different running states, wherein the electric quantity sharing coefficients of the target internal machine are different. Therefore, calculating the apportioned electric quantity of the target internal machine in the preset time period according to the total electric consumption quantity and the electric quantity apportionment coefficient of the target internal machine comprises the following steps: under different running states of the target internal machine, calculating the electric quantity sharing coefficient of the target internal machine according to a corresponding calculation mode; and calculating the product of the total power consumption and the power sharing coefficient to obtain the shared power of the target internal machine in a preset time period.
Further, the electric quantity apportionment coefficient includes at least one of the following: temperature ratio and capacity ratio.
In a preferred embodiment of the present invention, when the target internal machine is in an operating state and the electric quantity sharing coefficient is a temperature ratio, the electric quantity sharing coefficient of the target internal machine is calculated according to a first calculation method; the first calculation mode is used for calculating according to the temperature difference of each starting-up internal machine and the temperature difference of a target internal machine, wherein the temperature difference is the difference between a set temperature and an environment temperature; calculating the electric quantity sharing coefficient of the target indoor unit according to a first calculation mode, wherein the calculation mode comprises the following steps: calculating the temperature difference of all the startup internal machines, and taking the average value of the temperature differences; calculating the temperature difference of the target internal machine; and calculating the ratio of the temperature difference of the target internal machine to the average value, and dividing the ratio by the number of all the started internal machines to obtain the electric quantity sharing coefficient of the target internal machine.
In the above embodiment, the electric quantity sharing coefficient of the target internal machine, i.e., the temperature ratio B, is calculated by the following formula:
b ═ Δ Ti/Δt)/n; the indoor unit starting method comprises the steps of obtaining a target indoor unit temperature, obtaining a difference value between the target indoor unit temperature and the ambient temperature, obtaining a delta Ti-T0-value, obtaining a set temperature of the target indoor unit, obtaining a T0 of the ambient temperature, obtaining a delta T of an average value of the set temperature of all the started indoor units and the ambient temperature, obtaining a delta T ═ sigma delta Ti/n, obtaining i of 1,2,3 …, and obtaining the number of indoor unit starting users.
When the target internal machine is in a running state and the electric quantity sharing coefficient is the capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a second calculation mode; the second calculation mode is used for calculating according to the capacity of each starting internal machine and the capacity of the target internal machine; calculating the electric quantity sharing coefficient of the target indoor unit according to a second calculation mode, wherein the calculation mode comprises the following steps: calculating the total capacity of all the startup internal machines; and calculating the ratio of the capacity of the target internal machine to the total capacity to obtain the electric quantity sharing coefficient of the target internal machine.
When the target internal machine is in a running state and the electric quantity sharing coefficient is the temperature ratio and the capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a third calculation mode; and the third calculation mode is to calculate the product of the temperature ratio of the target indoor unit and the capacity ratio of the target indoor unit, wherein the temperature ratio of the target indoor unit is calculated according to the first calculation mode, and the capacity ratio of the target indoor unit is calculated according to the second calculation mode.
In another preferred embodiment of the present invention, when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is a temperature ratio, the temperature ratio of the target internal machine is 0; that is, when the electric quantity sharing coefficient only includes the temperature ratio, if the target internal machine is not started at this time, the electric quantity does not need to be shared.
When the target internal machine is in a shutdown state and the electric quantity sharing coefficient is the capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a fourth calculation mode; the fourth calculation mode is calculated according to the running states of other internal machines, the capacity of the target internal machine and the total installed capacity of the internal machines; when the electric quantity sharing coefficient only comprises the capacity ratio, whether other internal machines operate needs to be further judged; and when no other internal machine runs, calculating the ratio of the capacity of the target internal machine to the total installed capacity of the internal machine to obtain the electric quantity sharing coefficient of the target internal machine.
When the target internal machine is in a shutdown state and the electric quantity sharing coefficient is a temperature ratio and a capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a fifth calculation mode; the fifth calculation mode is to calculate the product of the temperature ratio of the target indoor unit and the capacity ratio of the target indoor unit, the temperature ratio of the target indoor unit is 1, and the capacity ratio of the target indoor unit is calculated according to the fourth calculation mode.
In order to solve the unscientific problem of electric quantity sharing, two important influence factors need to be considered: firstly, the capacity ratio of an internal machine; ② the user ability requirement (embodied in the setting temperature). Taking summer refrigeration as an example, if 36 ℃ is outdoors, the indoor unit users with the same capacity set the indoor temperature to be 26 ℃ and 20 ℃ respectively, the power consumption is different, and obviously, the system power consumption caused by setting the indoor temperature to be 20 ℃ is larger. Thus, the split of the present invention is based on 2: setting a temperature difference by a user; secondly, the capacity ratio of the internal machine is increased, and the larger the set temperature difference is, the larger the proportion of the electric charge is born; the larger the capacity of the internal machine is, the more the electric charge is borne.
In another preferred embodiment of the present invention, calculating the total power consumption of the air conditioning system for a preset time period includes: calculating the power consumption of the external machine side, the power consumption of the internal machine side and the power consumption of the controller of the air conditioning system in a preset time period; and adding the power consumption of the outer machine side, the power consumption of the inner machine side and the power consumption of the controller in the preset time period to obtain the total power consumption of the air conditioning system in the preset time period.
1. Compressor power consumption
Compressor power W1 ═ Un ═ I × (k); un ═ E + I Rs + L ═ di/dt;
wherein: k is a correction coefficient and a constant; e is the electromotive force of the compressor, and the electrical knowledge shows that E is in a proportion to r, and r is the rotating speed of the rotor of the compression moulding machine; according to the inductance principle (cutting magnetic induction lines), the rotating speed r of the compressor is known, namely the electromotive force E of the compressor is known; thirdly, I is phase current (measured by a Hall sensor), Rs is winding resistance, and the I Rs can be ignored because the winding resistance is very small; l is inductance, and the inductance is very small, so L (di/dt) is ignored;
this gives: un ═ E + I Rs + L × (di/dt) can be approximately regarded as Un ═ E;
the rotating speed of the compressor is known, namely the voltage can be known, and then the phase current measured by the Hall sensor is combined, so that the power of the compressor can be calculated.
In the above embodiment, the phase current I of the compressor is measured by the hall resistance sensors, wherein the compressor is a three-phase compressor, the hall resistance sensors are located on any two phases of the compressor, as shown in fig. 2, 1 and 3 are hall resistances of the same specification, respectively arranged on any two phases, and 2 is a compressor winding.
After determining compressor power, calculating compressor power consumption Q1: q1 ═ Un × I × k × T1.
2. Outdoor fan power consumption
The power of the outdoor fan is smaller according to the power consumption of the whole machine or the press, and the power can be approximately regarded as the direct proportional relation of the frequency of the outdoor fan: w2 ═ r × j, where j is a fixed constant;
after determining the outdoor fan power, calculating the outdoor fan power consumption Q2 by the following formula: q2 ═ r × j × T1; wherein r is the frequency of the outdoor fan, j is the correction coefficient of the outdoor fan, and T1 is the preset time period.
The power consumption Q3 of the external side of the air conditioning system is Q1+ Q2 for each preset time period.
3. Power consumption of indoor fan
Indoor unit power W4 ═ Wr + Wy
The main power load of the indoor unit is the fan, the other water pumps, the main control panel electronic expansion valve and the like have smaller power, the main control panel and the water pumps are subjected to unified constant value processing Wy, and the fan feeds back power by gears.
Wherein: wr is the power of a fan (motor); wy is other loads such as a water pump and an internal machine control panel, and is a fixed value; and feeding back the power of constant value processing at the gear according to which gear the indoor fan is positioned. The following table is a corresponding relation table of the unit of the fan and the power:
| draught fan (motor) gear | Power of |
| Ultra-high grade | Wr1 |
| High wind shield | Wr2 |
| Middle wind shield | Wr3 |
| Low wind shield | Wr4 |
After determining the indoor fan power, further, the indoor fan power consumption Q4 is calculated by the following formula: q4 ═ T1 (Wr + Wy); wherein, T1 is a preset time period.
4. Controller power consumption
Calculating the power consumption of the controller by:
according to the type of the air conditioning system, acquiring main control panel power, compressor control panel power, outdoor fan control panel power, indoor fan control panel power and filter panel power corresponding to the type of the air conditioning system from a preset information table; the preset information table is a corresponding relation table of the type of the air conditioning system and the power of the main control panel, the power of the compressor control panel, the power of the outdoor fan control panel, the power of the indoor fan control panel and the power of the filter panel respectively;
and adding the power consumption of the main control panel, the power consumption of the compressor control panel, the power consumption of the outdoor fan control panel, the power consumption of the indoor fan control panel and the power consumption of the filter panel to obtain the power consumption of the controller.
The control board power refers to the energy consumption required for maintaining self operation, the value of the energy consumption is small, the energy consumption can be regarded as a fixed value processing, and the assigned value refers to the following:
master board power W11: 10W;
filter plate dynamic rate W12: 10W;
outdoor fan board power W13: 10W;
compressor drive plate W14: 20W.
In the embodiment, the power consumption of the compressor is dynamically calculated by utilizing the existing components, the power consumption with low self energy consumption of the control panel and the like is subjected to fixed value processing, the calculation program is simplified on the premise of not influencing the precision, and the calculation stability and reliability of the system operation are improved; meanwhile, the scientific electric quantity calculation statistical program can realize the function without adding any hardware, and only needs to add a built-in program. And a brand new (combination, simplification and the like) power calculation formula is created, high calculation accuracy is ensured, the method is in accordance with the reality, and the popularization of the air conditioner in areas such as schools is facilitated.
In a preferred embodiment 1 of the present invention, another preferred electric quantity calculating method is further provided, and specifically, the method includes the following steps:
the built-in program of the driving board calculates the accumulated power consumption of the compressor and the fan, the 5 minutes is taken as 1 calculation period, and the calculation result is sent to the built-in program of the main control board;
the internal machine sends the power and the accumulated power consumption within 5min to the master control in 1 period of 5 minutes;
the main control calculates the power consumption Qj of the control board and the like within 5 minutes according to a preset power fixed value; and adding the calculation result with 5-minute power consumption Qy fed back by the driving board and 5-minute power consumption Qn fed back by the internal machine to calculate the power consumption of the system within 5 minutesA flow chart of the method of calculating the total amount of electricity is shown in fig. 3.
And (3) calculating the individual charging: any internal machine should bear the system power consumption within the 5 minutes
The calculation of the external machine side electric quantity comprises the following steps: firstly, taking the power of a control board (a press driving board, a fan driving board, a main control board, a filter board and the like) as a fixed value; secondly, the press calculates the accumulated power consumption within 5 minutes according to a power calculation formula (see above) and a fan according to the calculation formula, and sends the calculated power consumption to the master control;
the internal machine side electric quantity calculation comprises the following steps: loads of a water pump, a main internal machine control panel and the like are small, and the loads are uniformly regarded as a fixed value process, namely, the small powers are regarded as a fixed power process; secondly, the power change of the motor of the indoor unit is very small under each gear of a plurality of fixed gears (ultra-high gear, high wind gear and the like), the power of the motor under each gear is tried to be a fixed value, and each gear corresponds to 1 fixed value power.
The calculation of the total power consumption includes: the master control superposes the fed back information, and the information is accumulated for 1 time per 5 minutes.
In the foregoing embodiment, an electric quantity calculation method independent of an electric meter is provided, in which the apportioned electric quantity of the target internal machine in the preset time period is calculated by calculating the total electric consumption quantity of the air conditioning system in the preset time period and the electric quantity apportionment coefficient of the target internal machine. By the method, the problem of electric charge sharing when one set of multi-split air conditioner is shared is solved by an accurate electric quantity statistical program and a scientific energy consumption distribution method, the electric charge sharing can be realized only by adding a built-in program, an electric meter does not need to be additionally configured, the installation cost is reduced, and meanwhile, the calculation precision is high and the electricity utilization reality is fitted.
Example 2
Based on the electric quantity calculating method provided in embodiment 1, in a preferred embodiment 2 of the present invention, an electric quantity calculating device is further provided, which is applied to a multi-split air conditioning system, and specifically, fig. 4 shows an optional structural block diagram of the device, and as shown in fig. 4, the device includes:
a total power consumption module 402, configured to calculate a total power consumption of the air conditioning system in a preset time period;
and the electric quantity sharing module 404 is connected to the total electric quantity consumption module 402, and is configured to calculate the shared electric quantity of the target internal machine in a preset time period according to the total electric quantity consumption and the electric quantity sharing coefficient of the target internal machine.
Wherein, the calculating step is realized by an air conditioner built-in program.
In the above embodiments, there is provided an electric quantity calculation apparatus independent of an electric meter, which calculates the apportioned electric quantity of the target internal machine in the preset time period by calculating the total electric quantity consumed by the air conditioning system in the preset time period and the electric quantity apportionment coefficient of the target internal machine. By the method, the problem of electric charge sharing when one set of multi-split air conditioner is shared is solved by an accurate electric quantity statistical program and a scientific energy consumption distribution method, the electric charge sharing can be realized only by adding a built-in program, an electric meter does not need to be additionally configured, the installation cost is reduced, and meanwhile, the calculation precision is high and the electricity utilization reality is fitted.
In another preferred embodiment of the present invention, the apportioning power module 404 includes:
the allocation coefficient determining unit is used for calculating the electric quantity allocation coefficient of the target internal machine according to the corresponding calculation mode under different running states of the target internal machine;
and the calculating unit is used for calculating the product of the total power consumption and the power sharing coefficient to obtain the shared power of the target internal machine in a preset time period.
Further, the electric quantity apportionment coefficient includes at least one of the following: temperature ratio and capacity ratio.
The split coefficient determination unit includes:
the first determining subunit is used for calculating the electric quantity sharing coefficient of the target internal machine according to a first calculation mode when the target internal machine is in a running state and the electric quantity sharing coefficient is a temperature ratio; the first calculation mode is used for calculating according to the temperature difference of each starting-up internal machine and the temperature difference of a target internal machine, wherein the temperature difference is the difference between a set temperature and an environment temperature; the first determining subunit is specifically configured to: calculating the temperature difference of all the startup internal machines, and taking the average value of the temperature differences; calculating the temperature difference of the target internal machine; and calculating the ratio of the temperature difference of the target internal machine to the average value, and dividing the ratio by the number of all the started internal machines to obtain the electric quantity sharing coefficient of the target internal machine.
The second determining subunit is used for calculating the electric quantity sharing coefficient of the target internal machine according to a second calculation mode when the target internal machine is in the running state and the electric quantity sharing coefficient is the capacity occupation ratio; the second calculation mode is used for calculating according to the capacity of each starting internal machine and the capacity of the target internal machine; the second determining subunit is specifically configured to calculate the total capacity of all the startup internal machines; and calculating the ratio of the capacity of the target internal machine to the total capacity to obtain the electric quantity sharing coefficient of the target internal machine.
The third determining subunit is used for calculating the electric quantity sharing coefficient of the target internal machine according to a third calculation mode when the target internal machine is in the running state and the electric quantity sharing coefficient is the temperature ratio and the capacity ratio; the third determining subunit is specifically configured to calculate a product of a temperature ratio of the target indoor unit and a capacity ratio of the target indoor unit, where the temperature ratio of the target indoor unit is calculated according to a first calculation method, and the capacity ratio of the target indoor unit is calculated according to a second calculation method.
In another preferred embodiment of the present invention, the partition coefficient determining unit further includes:
the fourth determining subunit is used for setting the temperature proportion of the target internal machine to be 0 when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is the temperature proportion; that is, when the electric quantity sharing coefficient only includes the temperature ratio, if the target internal machine is not started at this time, the electric quantity does not need to be shared.
The fifth determining subunit is configured to calculate an electric quantity sharing coefficient of the target internal machine according to a fourth calculation mode when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is a capacity fraction; the fifth determining subunit is specifically configured to perform calculation according to the operating states of the other internal machines, the capacity of the target internal machine, and the total installed capacity of the internal machines; when the electric quantity sharing coefficient only comprises the capacity ratio, whether other internal machines operate needs to be further judged; and when no other internal machine runs, calculating the ratio of the capacity of the target internal machine to the total installed capacity of the internal machine to obtain the electric quantity sharing coefficient of the target internal machine.
The sixth determining subunit is configured to calculate an electric quantity sharing coefficient of the target internal machine according to a fifth calculation manner when the target internal machine is in the shutdown state and the electric quantity sharing coefficient is the temperature ratio and the capacity ratio; the sixth determining subunit is specifically configured to calculate a product of a temperature ratio of the target internal machine and a capacity ratio of the target internal machine, where the temperature ratio of the target internal machine is 1, and the capacity ratio of the target internal machine is calculated according to a fourth calculation mode.
In another preferred embodiment of the present invention, the total power consumption module 402 includes:
the first calculation unit is used for calculating the power consumption of the external machine side, the power consumption of the internal machine side and the power consumption of the controller of the air conditioning system in each preset time period;
and the first summing unit is used for summing the power consumption of the external machine side, the power consumption of the internal machine side and the power consumption of the controller in each preset time period to obtain the power consumption of the air conditioning system in each preset time period.
Wherein, the power consumption of the external machine side at least comprises one of the following: compressor power consumption and outdoor fan power consumption; the power consumption of the internal machine side includes at least: the power consumption of the indoor fan and the power consumption of the water pump; the power consumption of the controller at least comprises: the power consumption of the main control panel, the power consumption of the compressor control panel, the power consumption of the outdoor fan control panel, the power consumption of the indoor fan control panel and the power consumption of the filter panel. In the above embodiment, the power consumption of the system is divided into the external machine side, the internal machine side and the controller side, and the power consumption of each side is calculated and summed up to obtain the total power consumption.
Preferably, the power consumption of the external device side includes at least: compressor power consumption; the first calculation unit includes: a first outer electricity metering operator unit for calculating a compressor electricity consumption Q1 by the following formula: q1 ═ Un ═ k ═ T1; where Un is equal to E, Un is the voltage of the compressor, E is the induced electromotive force of the compressor, I is the phase current of the compressor, k is the correction coefficient of the compressor, and T1 is the preset time period.
Optionally, the first calculation unit comprises: a second external machine electricity metering operator unit for calculating the compressor electricity consumption Q1 by the following formula: q1 ═ Un ═ k ═ T1; wherein Un ═ E + I Rs + L ═ di/dt; e is the induced electromotive force of the compressor, I is the phase current of the compressor, Rs is the winding resistance of the compressor, and L is the inductance of the compressor.
Further, the power consumption of the external device side includes at least: the power consumption of the outdoor fan; the first calculation unit includes: a third external electricity meter sub-unit for calculating the outdoor fan electricity consumption Q2 by the following formula: q2 ═ r × j × T1; wherein r is the frequency of the outdoor fan, j is the correction coefficient of the outdoor fan, and T1 is the preset time period.
The first calculation unit further includes: an internal electricity meter operator unit for calculating the indoor fan electricity consumption Q4 by the following formula: q4 ═ T1 (Wr + Wy); wherein Wr is the power of the indoor fan corresponding to the gear of the indoor fan, Wy is the load power of the indoor fan, and T1 is a preset time period.
Further, the first calculation unit further includes: the water pump electricity metering operator unit is used for calculating water pump electricity consumption Q5; the water pump power consumption Q5 is a fixed value.
The power consumption of the system at least comprises: the power consumption of the main control panel, the power consumption of the compressor control panel, the power consumption of the outdoor fan control panel, the power consumption of the indoor fan control panel and the power consumption of the filter panel; the first calculation unit further includes: a main control electricity amount calculation subunit for calculating the electricity consumption amount of the controller by: acquiring the power of each control panel corresponding to the type of the air conditioning system from a preset information table according to the type of the air conditioning system; calculating the power consumption of each control board according to the power of each control board; and adding the power consumption of the control boards to obtain the power consumption of the controller.
Further, the total power calculating module 304 includes: the acquisition unit is used for acquiring the power consumption of the air conditioning system in each preset time period; and the second summing unit is used for summing the power consumption of each preset time period to obtain the total power of the air conditioning system in a preset calculation period.
Further, phase current I of the compressor is measured by hall resistance sensors, wherein the compressor is a three-phase compressor, and the hall resistance sensors are located on any two phases of the compressor.
With regard to the apparatus in the above embodiments, the specific manner in which each unit and each module performs operations has been described in detail in the embodiments related to the method, and will not be described in detail herein.
Example 3
Based on the electric quantity calculating device provided in the above embodiment 2, in a preferred embodiment 3 of the present invention, an air conditioning unit is further provided, which includes the above electric quantity calculating device.
In the above embodiments, there is provided an electric quantity calculation apparatus independent of an electric meter, which calculates the apportioned electric quantity of the target internal machine in the preset time period by calculating the total electric quantity consumed by the air conditioning system in the preset time period and the electric quantity apportionment coefficient of the target internal machine. By the method, the problem of electric charge sharing when one set of multi-split air conditioner is shared is solved by an accurate electric quantity statistical program and a scientific energy consumption distribution method, the electric charge sharing can be realized only by adding a built-in program, an electric meter does not need to be additionally configured, the installation cost is reduced, and meanwhile, the calculation precision is high and the electricity utilization reality is fitted.
Example 4
Based on the power calculating method provided in the above embodiment 1, in a preferred embodiment 4 of the present invention, there is also provided a computer device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor implements the power calculating method as described above when executing the program.
In the foregoing embodiment, an electric quantity calculation method independent of an electric meter is provided, in which the apportioned electric quantity of the target internal machine in the preset time period is calculated by calculating the total electric consumption quantity of the air conditioning system in the preset time period and the electric quantity apportionment coefficient of the target internal machine. By the method, the problem of electric charge sharing when one set of multi-split air conditioner is shared is solved by an accurate electric quantity statistical program and a scientific energy consumption distribution method, the electric charge sharing can be realized only by adding a built-in program, an electric meter does not need to be additionally configured, the installation cost is reduced, and meanwhile, the calculation precision is high and the electricity utilization reality is fitted.
Example 5
Based on the electricity amount calculation method provided in the above embodiment 1, there is also provided in a preferred embodiment 5 of the present invention a storage medium containing computer-executable instructions for performing the electricity amount calculation method as described above when executed by a computer processor.
In the foregoing embodiment, an electric quantity calculation method independent of an electric meter is provided, in which the apportioned electric quantity of the target internal machine in the preset time period is calculated by calculating the total electric consumption quantity of the air conditioning system in the preset time period and the electric quantity apportionment coefficient of the target internal machine. By the method, the problem of electric charge sharing when one set of multi-split air conditioner is shared is solved by an accurate electric quantity statistical program and a scientific energy consumption distribution method, the electric charge sharing can be realized only by adding a built-in program, an electric meter does not need to be additionally configured, the installation cost is reduced, and meanwhile, the calculation precision is high and the electricity utilization reality is fitted.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (17)
1. An electric quantity calculation method is applied to a multi-split air conditioning system and is characterized by comprising the following steps:
calculating the total power consumption of the air conditioning system in a preset time period;
calculating the apportioned electric quantity of the target internal machine in the preset time period according to the total electric consumption quantity and the electric quantity apportionment coefficient of the target internal machine;
calculating the apportioned electric quantity of the target internal machine in the preset time period according to the total electric consumption quantity and the electric quantity apportionment coefficient of the target internal machine, wherein the apportioned electric quantity comprises the following steps:
under different running states of the target internal machine, calculating the electric quantity sharing coefficient of the target internal machine according to a corresponding calculation mode;
calculating the product of the total power consumption and the power sharing coefficient to obtain the shared power of the target internal machine in the preset time period;
the different operation states of the target indoor unit at least comprise one of the following states: a shutdown state and an operation state; the electric quantity sharing coefficient at least comprises one of the following components: temperature ratio and capacity ratio;
under different running states of the target internal machine, calculating the electric quantity sharing coefficient of the target internal machine according to a corresponding calculation mode, wherein the calculation mode comprises the following steps:
when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is a temperature ratio, the temperature ratio of the target internal machine is 0;
when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is a capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a fourth calculation mode; the fourth calculation mode is calculated according to the running states of other internal machines, the capacity of the target internal machine and the total installed capacity of the internal machines;
when the target internal machine is in a shutdown state and the electric quantity sharing coefficient is a temperature ratio and a capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a fifth calculation mode; the fifth calculation mode is to calculate the product of the temperature ratio of the target indoor unit and the capacity ratio of the target indoor unit, the temperature ratio of the target indoor unit is 1, and the capacity ratio of the target indoor unit is calculated according to the fourth calculation mode.
2. The method according to claim 1, wherein calculating the electric quantity sharing coefficient of the target indoor unit according to corresponding calculation manners in different operation states of the target indoor unit comprises:
when the target internal machine is in a running state and the electric quantity sharing coefficient is a temperature ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a first calculation mode; the first calculation mode is used for calculating according to the temperature difference of each starting-up internal machine and the temperature difference of the target internal machine, wherein the temperature difference is the difference between a set temperature and an environment temperature;
when the target internal machine is in a running state and the electric quantity sharing coefficient is a capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a second calculation mode; the second calculation mode is calculated according to the capacity of each starting internal machine and the capacity of the target internal machine;
when the target internal machine is in a running state and the electric quantity sharing coefficient is a temperature ratio and a capacity ratio, calculating the electric quantity sharing coefficient of the target internal machine according to a third calculation mode; and calculating the product of the temperature ratio of the target indoor unit and the capacity ratio of the target indoor unit according to the third calculation mode, wherein the temperature ratio of the target indoor unit is calculated according to the first calculation mode, and the capacity ratio of the target indoor unit is calculated according to the second calculation mode.
3. The method according to claim 2, wherein calculating the electric quantity sharing coefficient of the target indoor unit according to a first calculation mode comprises:
calculating the temperature difference of all the startup internal machines, and taking the average value of the temperature differences;
calculating the temperature difference of the target indoor unit;
and calculating the ratio of the temperature difference of the target internal machine to the average value, and dividing the ratio by the number of all the starting internal machines to obtain the electric quantity sharing coefficient of the target internal machine.
4. The method according to claim 2, wherein calculating the electric quantity sharing coefficient of the target indoor unit according to a second calculation mode comprises:
calculating the total capacity of all the startup internal machines;
and calculating the ratio of the capacity of the target internal machine to the total capacity to obtain the electric quantity sharing coefficient of the target internal machine.
5. The method according to claim 1, wherein calculating the electric quantity sharing coefficient of the target indoor unit according to a fourth calculation mode comprises:
judging whether other internal machines operate or not;
and when no other internal machine runs, calculating the ratio of the capacity of the target internal machine to the total installed capacity of the internal machine to obtain the electric quantity sharing coefficient of the target internal machine.
6. The method of claim 1, wherein calculating the total power consumption of the air conditioning system over a preset time period comprises:
calculating the power consumption of the external machine side, the power consumption of the internal machine side and the power consumption of the controller in the preset time period;
and summing the power consumption of the external machine side, the power consumption of the internal machine side and the power consumption of the controller in the preset time period to obtain the total power consumption of the air conditioning system in the preset time period.
7. The method of claim 6, wherein the power consumption of the external machine side comprises at least: compressor power consumption;
calculating the compressor power consumption Q1 by the following formula:
q1 ═ Un ═ k ═ T1; where Un is E, Un is the voltage of the compressor, E is the induced electromotive force of the compressor, I is the phase current of the compressor, k is the correction coefficient of the compressor, and T1 is the preset time period.
8. The method of claim 6, wherein the power consumption of the external machine side comprises at least: compressor power consumption;
calculating the compressor power consumption Q1 by the following formula:
q1 ═ Un ═ k ═ T1; wherein the content of the first and second substances,
un ═ E + I Rs + L ═ di/dt; e is the induced electromotive force of the compressor, I is the phase current of the compressor, Rs is the winding resistance of the compressor, and L is the inductance of the compressor.
9. The method of claim 6, wherein the power consumption of the external machine side comprises at least: the power consumption of the outdoor fan;
calculating the outdoor fan power consumption Q2 by the following equation:
q2 ═ r × j × T1; wherein r is the frequency of the outdoor fan, j is the correction coefficient of the outdoor fan, and T1 is the preset time period.
10. The method of claim 6, wherein the power consumption of the server side comprises at least: the power consumption of the indoor fan;
calculating the indoor fan power consumption Q4 by the following formula:
q4 ═ T1 (Wr + Wy); wherein Wr is the power of the indoor fan corresponding to the gear of the indoor fan, Wy is the load power of the indoor fan, and T1 is the preset time period.
11. The method of claim 10, wherein the power consumption of the server side further comprises: the power consumption Q5 of the water pump; the water pump power consumption Q5 is a fixed value.
12. The method of claim 6, wherein the power consumption of the controller comprises at least: the power consumption of the main control panel, the power consumption of the compressor control panel, the power consumption of the outdoor fan control panel, the power consumption of the indoor fan control panel and the power consumption of the filter panel;
calculating the power consumption of the controller by:
acquiring the power of each control panel corresponding to the type of the air conditioning system from a preset information table according to the type of the air conditioning system; calculating the power consumption of each control board according to the power of each control board; and adding the power consumption of the control boards to obtain the power consumption of the controller.
13. The method according to claim 7 or 8, characterized in that the phase current I of the compressor is measured by Hall resistance sensors, wherein the compressor is a three-phase compressor, the Hall resistance sensors being located on any two phases of the compressor.
14. An electric quantity calculation device applied to a multi-split air conditioning system and used for executing the method of any one of claims 1 to 13, the electric quantity calculation device comprising:
the total power consumption module is used for calculating the total power consumption of the air conditioning system in a preset time period;
and the electric quantity sharing module is used for calculating the electric quantity shared by the target internal machine in the preset time period according to the total electric consumption quantity and the electric quantity sharing coefficient of the target internal machine.
15. An air conditioning system characterized by comprising the electric quantity calculation apparatus according to claim 14.
16. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the power calculation method according to any one of claims 1 to 13 when executing the program.
17. A storage medium containing computer-executable instructions for performing the power calculation method of any one of claims 1 to 13 when executed by a computer processor.
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| CN110567104B (en) * | 2019-09-26 | 2020-09-11 | 珠海格力电器股份有限公司 | Method and device for controlling operation of internal machine of multi-split air conditioning system and computer equipment |
| CN112062325B (en) * | 2020-08-04 | 2023-04-18 | 湖南大唐先一科技有限公司 | Unit operation cost statistical method and device of chemical demineralized water treatment system |
| CN113883682B (en) * | 2021-09-28 | 2022-12-27 | 青岛海尔中央空调有限公司 | Air conditioner charging method and device and computer readable storage medium |
| CN115854495A (en) * | 2022-11-30 | 2023-03-28 | 深圳供电局有限公司 | Air conditioner electric quantity determining method and device, computer equipment and storage medium |
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