Gree Electric Appliances, Inc. of Zhuhai

Weijin Li

Zhigang Zhao

Meng Li

Mingzhu Dong

Meng Huang

Shiyong Jiang

Xuefen Zhang

Peng Ren

Wu Wen

Jinrong Yuan

Shugong Nan

Wenqiang Tang

Lingjun Wang

Xiao Luo

Wenhao Wu

Jiangxi Song

Qiulian Li

Jianjun Huang

Yunhong Zeng

Bei Chen

Ke Yuan

Qigui Hu

Xueyun Zheng

The present disclosure provides a soft start circuit and a power supply circuit. The soft start circuit is disposed between a negative electrode of a direct current bus capacitor and a negative terminal of a direct current power supply, so as to control, after a start begins, according to the current input by the direct current bus capacitor in a constant current module, whether to electrically connect the direct current power supply and the direct current bus capacitor; one end of the soft start circuit is further connected to a filtering protection module, so as to control, at the beginning of the start, according to the voltage output by the filtering protection module, the direct current power supply to be electrically connected to the direct current bus capacitor.

Soft start circuit and power supply circuit

Disclosed are an on-grid/off-grid scheduling method and apparatus, and an energy storage power supply system. The method is applied to the system. The system includes an energy storage device; the energy storage device is connected to a direct current bus; one end of the direct current bus is connected to a power grid by means of an AC-DC module, and the other end is connected to a load. The method includes: after the energy storage device enters an off-grid operation mode, controlling an output voltage of the energy storage device to decrease once every first preset duration; and every time the output voltage of the energy storage device is controlled to decrease, obtaining an input voltage change situation of the load, and determining, according to the input voltage change situation of the load, whether to control the energy storage device to switch to an on-grid operation mode.

On-grid/off-grid scheduling method and apparatus, and energy storage power supply system

The present disclosure relates to the technical field of smart home, and provides a direct current load response control method and device, and a direct current electric appliance. The direct current load response control method of the present disclosure comprises: monitoring a utilization voltage of a direct current load; determining whether the utilization voltage is within a response interval; and controlling the operation of the direct current load according to the determination result and the type of the direct current load.

Direct current load response control method and device, and a direct current electric appliance

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

Growing community of inventors

Zhuhai, China

Weijin Li