Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.

Beijing Boe Technology Development Co., Ltd.

Xinjiang Goldwind Science & Technology Co., Ltd.

General Electric Technology Gmbh

Lianfu Yu

Yanlu Liu

Meiling Zuo

Dongni Liu

Zhenyu Zhang

Yunsik Im

Hengxu Ha

Shunhang Zhang

Zhen Zhang

Sankara Subramanian Sri Gopala Krishna Murthi

Xianwen Bao

Yuan Qiao

Di Xiao

Xiaogang Xing

Peirou Li

A pixel drive circuit is configured to drive a light emitting device to emit light, the light emitting device includes a first electrode and a second electrode, the pixel drive circuit includes a current control sub-circuit and a duration control sub-circuit; the duration control sub-circuit is configured to provide control signal to a first node under control of signals of a first scan signal line, a first reset signal line, a first light emitting signal line, control signal line, a data signal line, an initial signal line, and a first power supply line; the current control sub-circuit is configured to provide a drive current to a first electrode of a light emitting device under control of signals of a first node, a second scan signal line, a second reset signal line, a second light emitting signal line, a Data signal line, and a second power supply line.

Pixel drive circuit and driving method therefor, and display device

Methods and apparatuses for controlling reactive power of a wind turbine, and a wind farm are provided. An exemplary method includes: obtaining operation data of single wind turbines in a wind turbine group at the current time point; determining the total maximum capacitive reactive capacity and total minimum inductive reactive capacity, satisfying a safety constraint condition at the next time point, of the wind turbine group; calculating a deviation value of a wind turbine group reactive instruction at the current time point; and updating the wind turbine group reactive instruction on the basis of the acquired, determined, and calculated data so as to perform reactive power control.

Method and apparatus for controlling reactive power of wind turbine, and wind farm

A method and a control device for adjusting active power of a wind farm, and a controller of a wind farm are provided. The method includes: acquiring an active power increment to be adjusted in the wind farm; determining an active power adjustable amount of the wind farm based on active power adjustable amounts of wind turbines in the wind farm; and determining an active power adjustment amount of each of the wind turbines based on the active power increment to be adjusted in the wind farm and the active power adjustable amount of the wind farm, to adjust active power of each of the wind turbines.

Method and control device for adjusting active power of wind farm and controller of wind farm

A method, an apparatus, and a system for monitoring an islanding electricity generation unit are provided. The method includes determining an islanding electricity generation unit in a renewable energy station on the basis of collected electrical capacity at critical electrical nodes of the renewable energy station, and controlling a switch device corresponding to the determined islanding electricity generation unit to sever connection between the electricity generation unit and a collector line. The critical electrical nodes include nodes that have a collecting effect on grid-connected current of the electricity generation units of the renewable energy station, and each collector line being constructed to collect grid-connected current from at least one electricity generation unit and input same into a main transformer of the renewable energy station.

Method, apparatus, and system for monitoring islanding electricity generation unit

Growing community of inventors

Beijing, China

Lianfu Yu