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Control Strategies of Variable-Speed Wind System Under New Grid Code Requirement - A Survey

Hu Jiefeng; Zhu Jianguo; Dorrell David; Ma Qishuang; Zhang Yongchang; Xu Wei (IEEE, 2010)

The rate at which large variable speed wind farms are being developed had increased rapidly as the demand for green energy has grown. With this increase in distributed energy penetration into power networks, the main focus ...
Issues with Low Speed Direct-Drive Permanent-Magnet Generator Design - Comparison of Radial-Flux Slotted and Torus Machines

Dorrell David; Hsieh Min-Fu (IEEE, 2010)

This paper describes two alternative designs of a direct-drive permanent-magnet generator for use in a novel seawave electrical generator. The basic system is briefly described and the target specification is given from ...
Speed Sensorless Stator Flux Oriented Control of Three-Level Inverter-Fed Induction Motor Drive Based on Fuzzy Logic and Sliding Mode Control

Zhang Yongchang; Zhu Jianguo; Xu Wei; Hu Jiefeng; Dorrell David; Zhao Zhengming (IEEE, 2010)

A novel simplified stator flux oriented control (SFOC) for three-level inverter-fed induction motor drive is proposed to achieve high performance torque control in both steady state and transient conditions. Sliding mode ...

Now showing items 1-3 of 3