Electric quantity calculation method and device and multi-split air conditioning system
A multi-connected system and electricity calculation technology, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve problems that affect the starting point of the cumulative time of the whole system, estimation errors, etc.
Active Publication Date: 2021-05-14
GREE ELECTRIC APPLIANCES ZHENGZHOU +1
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[0004] However, since the internal and external units of the multi-connected system are controlled by different controllers, if the starting time of the timing is different between different controllers, it will affect the starting point of the cumulative time of the power calculation of the whole system, and then there will be an estimation error for the power measurement of the whole system , in order to achieve the same power accuracy between the estimated power and the power measured by the meter, the clock synchronization between the distributed controllers becomes a key factor affecting the power measurement accuracy of the multi-connected system
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[0026]Various exemplary embodiments of the present disclosure will now be described in detail with reference to the drawings. It should be noted that the relative arrangement of the components and steps set forth in these embodiments, unless otherwise specified, the digital expression, and numerical values are not limited to the scope of the disclosure.
[0027]At the same time, it should be understood that in order to facilitate the description, the dimensions of the respective portions shown in the figures are not drawn in accordance with the actual ratio relationship.
[0028]The following description of at least one exemplary embodiment is actually illustrative only, and it is not necessary to use any limits to the present disclosure and their applications or use.
[0029]For technical, methods, and equipment known to those of ordinary skill in the art may not be discussed in detail, in appropriate, the techniques, methods, and equipment should be considered part of the authorization m...
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The invention discloses an electric quantity calculation method and device and a multi-split air conditioning system, and relates to the field of air conditioners. The electric quantity calculation method comprises the following steps: acquiring reference time; calibrating time information of an outdoor unit controller according to the reference time; sending the reference time to each indoor unit controller so that each indoor unit controller can calibrate time information; and calculating the electric quantity of the multi-split air conditioning system according to the time and power of the outdoor unit controller and the indoor unit controllers. According to the invention, clock unification of the plurality of controllers of the multi-split air conditioning system is realized, so that the accuracy of electric quantity estimation of the multi-split system is improved.
Description
Technical field[0001]The present disclosure relates to the field of air conditioning, and more particularly to one electric quantity calculation method, apparatus, and a multi-haircut system.Background technique[0002]The multi-machine system is a distributed refrigeration control system for internal and external machines. The normal power metering method is to measure power for multi-haired machine system, but due to the metrology, it is necessary to increase the external electricity, resulting in high metering cost and complex installation.[0003]Based on data within the multi-link control system, it can be directly controlled and acquired data such as the operational state of each load and the voltage current of important loads, which can be used to estimate the electricity quantity and accumulate a full system by the internal and external machine controller, and achieve low cost statistics. Methods.[0004]However, since the internal and external machines of the multi-haircut system...
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IPC IPC(8): G01R22/10
CPCG01R22/10
Inventor 金国华马翠明邓忠文王文灿黄强
Owner GREE ELECTRIC APPLIANCES ZHENGZHOU