Zhejiang Super Lighting Electric Appliance Co., Ltd

State Grid Zhejiang Electric Power Company Limited

State Grid Zhejiang Economic Research Institute

State Grid Ningbo Electric Power Supply Company Limited

Zhejiang Huayun Electric Power Engineering Design Consulting Co. Ltd

Lin Zhou

Tao Jiang

Aiming Xiong

Zhichao Zhang

MingBin Wang

Yuexing Li

Chihshan Yu

JunFeng Xu

Xiaodi Zhang

Yan Yao

Weijun Liu

Ren Tang

Dan Yu

Yingjing He

Chaoming Zheng

Xiran Wang

Yangqing Dan

Shuyi Shen

Yanwei Zhu

Fan Li

Weimin Zheng

Jiandi Fang

An LED light bulb is provided. The LED light bulb includes a lamp housing, a bulb base, a stem, two conductive supports, a driving circuit, and a flexible LED filament. The flexible filament includes a first LED section, a second LED section, a conductive section, a first conductive electrode, and a second conductive electrode. The first LED section is bent in a first three-dimensional curve shape. The second LED section is bent in a second three-dimensional curve shape. The conductive section includes a center point of the flexible LED filament. The flexible LED filament is bent in a third three-dimensional curve shape including the first three-dimensional curve shape, the conductive section, and the second three-dimensional curve shape. A polarity of the conductor is opposite to polarities of the first conductive electrode and the second conductive electrode.

LED filament and LED light bulb

An LED light bulb is provided. The LED light bulb includes a lamp housing, a bulb base, a stem, first and second conductive supports, a driving circuit, and a flexible LED filament. The flexible filament includes two conductive electrodes, a first LED section, a second LED section, and a conductive section. The first LED section is bent in a first space curved shape. The second LED section is bent in a second space curved shape. The conductive section includes a center point of the flexible LED filament. The flexible LED filament is bent in a third space curved shape comprising the first space curved shape and the second space curved shape.

A support tensor machine based neutral point grounding mode decision method and system adopts a support tensor machine method Based on three indexes, i.e., the power supply reliability index, safety index, and economical efficiency index, influences of different neutral point grounding modes are analyzed by employing the support tensor machine method to finally obtain a neutral point grounding mode capable of maximizing power supply reliability of a distribution network.

Support tensor machine based neutral point grounding mode decision method and system

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Zhejiang, China

Lin Zhou