Gree Electric Appliances, Inc. of Zhuhai

Gree Altairnano New Energy Inc.

Shiyong Jiang

Xuefen Zhang

Zhigang Zhao

Jing Wang

Keqin Liu

Peng Ren

Chongyang Feng

Wu Wen

Meng Li

Mingzhu Dong

Meng Huang

Xiang Zhang

Jinrong Yuan

Shugong Nan

Yu Zhang

Jianhua Li

Ningning Chen

Han Liu

Lei Li

Yingyi Jiang

Weijin Li

Dongrui Qu

Wenqiang Tang

Lingjun Wang

Xiao Luo

Hewei Lou

Weitao Ni

Hongming Liu

Jiangxi Song

Wenhao Wu

Yuming Zhao

Ying Li

Bei Chen

Yunhong Zeng

Jianjun Huang

Fulong Che

Yibin Tong

Bin Hao

Yutong Li

Qianqian Li

Kuan Zhong

Wenhua Wang

Saijun Deng

Ahong Cheng

Haijun Li

Delei Xu

Shiying Zhan

Disclosed in the present disclosure are a direct current power distribution method, a direct current power distribution device and a direct current power distribution system. The method includes: determining working modes of a direct current power distribution system, correspondingly obtaining, under different working modes, working parameters of the direct current power distribution system, and regulating operation of the direct current power distribution system according to the working parameters to achieve an electric energy balance of a power consumption side, a power generation side of a power grid, and an energy storage side. According to the embodiments of the present disclosure, by the regulating of the direct current power distribution system, an electric energy balance among the power consumption side, the power generation side of the power grid, and the energy storage side is achieved.

Electricity power storage and distribution method, device and system

An energy Internet system, an energy routing conversion device, and an energy control method, relating to a field of energy information. An alternating-current (AC) side energy routing conversion device of the energy Internet system includes a plurality of first route ports, and a direct-current (DC) side energy routing conversion device includes a plurality of second route ports, where each second route port is connected to a corresponding first route port by means of a corresponding DC busbar. A plurality of energy devices are connected to a DC busbar by means of corresponding first AC/DC converters or first DC converters. The AC side energy routing conversion device and the DC side energy routing conversion device collect energy information of the energy devices and adjust energy of the energy devices on a basis of energy balance constraint conditions.

Energy-internet system, energy routing conversion device, and energy control method

Provided by the present application are a Direct Current (DC) micro-grid system, a charging loop circuit and a control method thereof. The charging loop circuit selectively connects a charging loop to a first side loop or a second side loop through a set of switches.

DC micro-grid system, charging loop circuit and control method thereof

The disclosure provides a photovoltaic electric appliance system and a voltage protection value control method and apparatus thereof, and a controller. The photovoltaic electric appliance system includes: a photovoltaic power generation module, an electric appliance, and a grid-connection module. Said control method comprises-: acquiring the working states of the photovoltaic power generation module, the electric appliance and the grid-connection module; and according to the working states of each, determining an operation mode of the photovoltaic electric appliance system, and setting a voltage protection range of the photovoltaic electric appliance system according to the operation mode. By determining whether the grid-connection module is working, whether the electric appliance is working, and whether the photovoltaic power generation module is working, and by setting voltage protection values respectively for different working modes, the invention achieves the effect of compatibility of protection values and improves the system performance.

Photovoltaic electric appliance system, method and device of controlling voltage protection value thereof

The present disclosure relates to a control method, a load and a power grid system. The method includes: detecting (S) a voltage change parameter on a power supply side; analyzing (S) a load control strategy corresponding to the voltage change parameter; controlling (S) an operation of the load according to the load control strategy. The solution solves the problem of inadequate communication facilities in the DC micro-grid, the DC home communication can be completed without or with less dedicated communication circuits, accordingly the system cost is reduced.

Control method, load and power grid system

The present invention provides a power conversion method, apparatus, and device, and a medium. The power conversion apparatus comprises: a configurable input interface, a power conversion circuit, and a configurable output interface. The configurable input interface is provided to configure a first electrical connection mode between an input power supply and the power conversion circuit, and to electrically connect the input power supply to the power conversion circuit. The configurable output interface is provided to configure a second electrical connection mode between a load and the power conversion circuit, and to electrically connect the load to the power conversion circuit. The power conversion circuit is provided to perform corresponding power conversion according to a parameter of the input power supply and a parameter of the load. Embodiments of the present invention resolve the problem in the related art of poor general applicability of a power conversion apparatus, thereby improving the general applicability of the power conversion apparatus.

Power conversion method, apparatus, and device, and medium

Disclosed are a power optimization method and an apparatus therefor, and a photovoltaic device and a photovoltaic system. The power optimization of a photovoltaic assembly can be realized when a series connection architecture or a parallel connection architecture is used for the photovoltaic assembly. The method includes: power optimization apparatuses carrying out MPPT processing on photovoltaic assemblies according to operating parameters of the photovoltaic assemblies corresponding to the power optimization apparatuses on a one-to-one basis (); and controlling the photovoltaic assemblies according to MPPT processing results so that power states of the photovoltaic assemblies are optimized (). By means of providing a power optimization apparatus for each photovoltaic assembly, the power optimization apparatus carries out MPPT processing on the corresponding photovoltaic assembly, thereby preventing the occurrence of power mismatch.

Power optimization method and apparatus therefor, and photovoltaic device and photovoltaic system

A control method for a direct current electrical device and a direct current electrical device. The method includes: acquiring input parameters of a power supply of the direct current electrical device, identifying a type of the power supply according to the input parameters, and determining an operation mode of the direct current electrical device corresponding to the type of the power supply, and controlling an operation of the direct current electrical device according to the operation mode.

Control method for direct current electrical device and direct current electrical device

A method for controlling a photovoltaic air conditioning system. The method comprises: detecting a grid frequency (); when the detected grid frequency is not equal to a pre-set frequency, calculating and obtaining a control parameter according to the detected grid frequency (); and controlling a photovoltaic air conditioning by means of the calculated and obtained control parameter (). Also disclosed is a photovoltaic air conditioning control device.

Method and device for controlling photovoltaic air conditioning system

The disclosure relates to the field of electronic elements, and discloses an Insulated Gate Bipolar Transistor (IGBT) module assembly which comprises a cooling plate and an IGBT module fixedly connected to the cooling plate, wiring terminals are arranged at an end face of the IGBT module, which is away from the cooling plate, the IGBT module comprises a side face adjacent to the end face, and the side face and the cooling plate form a water guiding groove. In the disclosure, the side face and the cooling plate form the water guiding groove, and a great amount of condensed water collected on the cooling plate can be guided to flow out through the water guiding groove instead of flowing to the end face of the IGBT module, on which the wiring terminals are arranged.

IGBT module assembly

Disclosed are a method and device for processing a voltage drop, a grid interconnection method and device for processing an electrical apparatus, and a system. The method includes: acquiring a drop amplitude of a first voltage for each phase in a three-phase alternating current (S); and under a condition in which the first voltage for any phase in the three-phase alternating current drops, performing reactive power compensation according to a drop amplitude of the first voltage for a phase in which the first voltage drops (S). Therefore, the electrical apparatus has a low voltage ride-through function, thereby solving the technical problem of a large deviation of voltage drop amplitude determination arising from an asymmetrical drop of three phases.

Method and device for processing voltage drop, grid interconnection processing method and device for electrical apparatus, and system

A method for controlling an air conditioner outdoor unit comprises: acquiring the working mode of the air conditioner outdoor unit; acquiring sensor parameters of the air conditioner outdoor unit according to the working mode, the sensor parameters including wind direction parameters read by a wind direction sensor () or temperature parameters read by a temperature sensor (); determining control parameters for the air conditioner outdoor unit by the working mode and the sensor parameters corresponding to the working mode; driving the rotating speed of a fan () and the rotating angle of a wind direction adjusting device () by use of the control parameters. In addition, a control system for the air conditioner outdoor unit is also related to.

Method and system for controlling air conditioner outdoor unit

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Guangdong, China

Shiyong Jiang