Abstract: The present disclosure relates to a control method and a control device of an air conditioning system, and an air conditioning system, and relates to the technical field of air conditioners: the method includes: determining whether piping length compensation is required; if the piping length compensation is required, acquiring one or more metric parameters; and determining a compensation value according to the one or more metric parameters, and adjusting an operating state of the air conditioning system according to the compensation value.

Abstract: Disclosed by the present disclosure are a power adjustment method and device and a power adjustment method based on a power line communication. The power adjustment method include: acquiring a plurality of noise values, wherein the plurality of noise values include: a plurality of power line communication (PLC) noise values corresponding to a plurality of communication sub-carriers, and a background noise value of an air conditioning unit itself; determining a plurality of noise powers corresponding to the plurality of noise values; generating a power adjustment data of the plurality of communication sub-carriers according to the plurality of noise powers; and regulating the transmitting power values of the plurality of communication subcarriers according to the power adjustment data.

Abstract: Embodiments of the present disclosure provide a method for controlling a fan, a system, and an air conditioner. The method includes: turning off a first bridge arm group in an inverter of the fan; applying a preset driving signal to a second bridge arm group in the inverter; detecting an electrical signal of a stator of the fan after the preset driving signal is applied; determining an initial state of the fan according to the electrical signal of the stator of the fan, wherein the initial state of the fan includes a downwind forward state, a static start state, or an unwind reverse state; and providing the fan with a control signal matching the initial state of the fan according to the initial state of the fan.

Abstract: The present disclosure relates to a control method and a control device of an air conditioning system, and an air conditioning system, and relates to the technical field of air conditioners: the method includes: determining whether piping length compensation is required; if the piping length compensation is required, acquiring one or more metric parameters; and determining a compensation value according to the one or more metric parameters, and adjusting an operating state of the air conditioning system according to the compensation value.

Abstract: The present disclosure discloses a method for mounting an air outlet structure of an air conditioner, comprises the steps of: determining whether the supporting strength of a mounting base satisfies the ceiling requirements of the air outlet structure of the air conditioner; mounting a lateral surface of the air outlet structure of the air conditioner on the mounting base and mounting the air outlet structure of the air conditioner on an indoor unit of the air conditioner if the requirements are satisfied, wherein the mounting base provides a main supporting and the indoor unit provides an auxiliary supporting; mounting the air outlet structure of the air conditioner on the indoor unit and mounting a lateral surface of the air outlet structure of the air conditioner on the mounting base if the requirements are not satisfied, wherein the mounting base provides an auxiliary supporting and the indoor unit provides a main supporting.

Abstract: Disclosed are a method and device for controlling pressure of units with height drop, and an air conditioner device. The method includes: monitoring an operating mode of the unit; obtaining an operating parameter corresponding to the operating mode according to the operating mode; and adjusting an opening degree of an electronic expansion valve according to the operating parameter.

Abstract: Disclosed by the present disclosure are a power adjustment method and device and a power adjustment method based on a power line communication. The power adjustment method include: acquiring a plurality of noise values, wherein the plurality of noise values include: a plurality of power line communication (PLC) noise values corresponding to a plurality of communication sub-carriers, and a background noise value of an air conditioning unit itself; determining a plurality of noise powers corresponding to the plurality of noise values; generating a power adjustment data of the plurality of communication sub-carriers according to the plurality of noise powers; and regulating the transmitting power values of the plurality of communication subcarriers according to the power adjustment data.

Abstract: Embodiments of the present disclosure provide a method for controlling a fan, a system, and an air conditioner. The method includes: turning off a first bridge arm group in an inverter of the fan; applying a preset driving signal to a second bridge arm group in the inverter; detecting an electrical signal of a stator of the fan after the preset driving signal is applied; determining an initial state of the fan according to the electrical signal of the stator of the fan, wherein the initial state of the fan includes a downwind forward state, a static start state, or an unwind reverse state; and providing the fan with a control signal matching the initial state of the fan according to the initial state of the fan.

Abstract: A power distribution priority controller and a controlling method of a photovoltaic power generation system. The controller includes a calculating unit configured to calculate an electric device priority list according to running state information of electric devices and photovoltaic power generation data and to determine a preferred power distribution schemes; a controlling unit configured to acquire in real time the running state information of all electric devices, and control the electric devices according to the preferred power distribution schemes determined by the calculating unit; a communicating unit configured to transmit the photovoltaic power generation data, the running state information of electric devices, and control command information; a storage unit configured to store, in time units, the photovoltaic power generation data, the running state information of electric devices, and the preferred power distribution schemes.

Abstract: A power distribution priority controller and a controlling method of a photovoltaic power generation system. The controller includes a calculating unit configured to calculate an electric device priority list according to running state information of electric devices and photovoltaic power generation data and to determine a preferred power distribution schemes; a controlling unit configured to acquire in real time the running state information of all electric devices, and control the electric devices according to the preferred power distribution schemes determined by the calculating unit; a communicating unit configured to transmit the photovoltaic power generation data, the running state information of electric devices, and control command information; a storage unit configured to store, in time units, the photovoltaic power generation data, the running state information of electric devices, and the preferred power distribution schemes.

Abstract: An intelligent defrosting control for an air conditioner is disclosed, which comprises the following steps: setting a standard air pressure value; placing a high-pressure sensor on the exhaust pipe of the compressor of the air conditioner to measure the air pressure; When the air pressure measured by the high-pressure sensor is lower than the standard air pressure value, said air conditioner begins to come into the defrosting mode; otherwise, said air conditioner working in previous mode.