State Grid Jiangsu Electric Power Company

Nari Technology Co., Ltd.

Southeast University

State Grid Corporation of China

State Grid Jiangsu Electric Power Company Research Institute

Jiangsu Frontier Power Technology Co., Ltd.

Nanjing Chscom Electrical Technology Co., Ltd.

Jijun Yin

Xiao Lu

Jianyu Luo

Haifeng Li

Lin Liu

Qing Chen

Xueming Li

Kaiming Luo

Yunsong Yan

Gang Chen

Jianfeng Ren

Zheng Wu

Haifeng Xia

Zhenyu Chen

Qiang Zhou

Feng Wang

Bin Yang

Shihai Yang

Xiao Chen

Qifeng Huang

Zhixin Li

Shuangshuang Zhao

Yaohong Li

Yefeng Jiang

Xiaofeng Wang

Shufeng Lu

Haowei Zhang

Mingfeng Xue

Lingying Huang

Qingshan Xu

Minrui Xu

Wenguang Chen

Hao Chen

Li Zhang

Chunlei Xu

Cheng Li

Jianbo Luo

Jie Fan

Yong Xia

Ning Wang

Hongxing Wang

Yujun Lu

Jiajia Cao

Bijun Li

Feng Xue

Yonggao Ge

Chengliang Wang

Jinhu Wang

Feng Ye

Hengzhi Cui

Xiangdong Chen

Zuofeng Li

Provided is a user side load response method based on adjustment and control on temperature of load clusters. The user side load response method includes: performing thermodynamic modeling on a temperature control load to obtain a temperature control model in direct load control; constructing a mapping quantity to describe the change state of a temperature control load relay switch; obtaining adjustable capacity of the temperature control load through the mapping quantity; introducing temperature control load clusters to solve the problem that control precision cannot satisfy condition requirements; and finally calculating the influence of each load cluster in different load cluster control schemes on comfort degree.

User side load response method based on adjustment and control on temperature of load clusters

Provided is a battery energy storage grid-load interactive method, terminal, system and medium for superimposed control. The method includes: receiving, by the battery energy storage grid-load interactive terminal, a load shedding instruction sent by a master station; sending, by the battery energy storage grid-load interactive terminal, the load shedding instruction to the power conversion system to enable the power conversion system to switch the operating state of the power conversion system from a charging state or a standby state or a discharging state to a maximum power discharging state according to the load shedding instruction; and sending, by the battery energy storage grid-load interactive terminal, the load shedding instruction to the energy managing system to enable the energy managing system to control the power conversion system.

Battery energy storage grid-load interactive method, terminal, system and medium for superimposed control

Provided is an accurate load shedding system and method based on a power-dedicated wireless network. The system includes: a control master station layer, a control substation layer and a terminal user access layer. The control master station layer includes a control master station apparatus and an optical/E1 conversion device. The control substation layer includes an optical/E1 conversion device, a control substation apparatus and a wireless access device. The terminal user access layer includes a wireless core network, a base station and a control terminal. The wireless access device is connected to the wireless core network through Ethernet. The wireless core network is connected with the base station through an optical fiber. The control terminal is connected to a wireless network of the base station through customer premise equipment (CPE).

Accurate load shedding system and method based on a power-dedicated wireless network

Provided is a power grid adjustment method based on a load of a variable frequency air conditioner. The method includes: establishing a mathematical simulation model of a virtual synchronous motor in a variable frequency air conditioner controller; establishing a virtual inertia control segment and a droop control segment of power grid adjustment according to the mathematical simulation model; obtaining a reference value &#x394;&#x3c9; of rotation speed variation of a compressor by the virtual inertia control segment; obtaining a reference value &#x3c9;of rotational angular frequency of the compressor by the droop control segment; and inputting a sum of the reference value &#x3c9;of rotational angular frequency of the compressor and the reference value &#x394;&#x3c9; of rotation speed variation of the compressor into a field-oriented controller (FOC) to control rotation of a motor.

Power grid adjustment method based on loads of variable frequency air conditioner

Provided is an emergency accurate control method and system for large-scale interruptible loads. The method includes: acquiring, by a region control master station, a sheddable load sequence table; acquiring, by the region control master station, a first to-be-shed load; performing, by the region control master station, minimum under-shedding matching layer by layer according to the first to-be-shed load, and shedding a sheddable load corresponding to control substation matching with the first to-be-shed load; and sending, by the region control master station, a second to-be-shed load to the corresponding control substation for load shedding if the second to-be-shed load exists.

Emergency accurate control method and system for large-scale interruptible loads

Provided are an accurate load shedding system, and a communication method and an access apparatus thereof. The access apparatus includes: two E1 interfaces, eight optical fiber interfaces, a CPU and an FPGA. The two E1 interfaces are respectively connected to a control apparatus A and a control apparatus B of a control substation. The eight optical fiber interfaces are respectively connected to eight control terminals. The FPGA includes eight optical fiber transceivers respectively connected to the eight optical fiber interfaces through serial interfaces, and two E1 transceivers respectively connected to the two E1 interfaces through serial interfaces. Each optical fiber transceiver includes a reset submodule. Each E1 transceiver also includes a reset submodule. The CPU is connected to the FPGA through a parallel bus.

Load shedding system, communication method and access apparatus thereof

Provided are a synchronization method, a wide area system protection apparatus, a plant station and a computer readable storage medium. The method includes: sending to a second plant station a first data frame that includes a sequence number p and a sending timestamp of the first data frame; receiving a second data frame sent by the second plant station, and recording a receiving timestamp of the second data frame, the second data frame including a sequence number q of the second data frame, a sending timestamp of the second data frame and a receiving timestamp of the first data frame, and the first data frame being adjacent to the second frame on the second plant station; calculating a time phase difference and a crystal oscillator frequency deviation between the first plant station and the second plant station; and adjusting time and a clock frequency of the first plant station.

Synchronization method and wide area system protection apparatus

Growing community of inventors

Jiangsu, China

Jijun Yin