Overview of the Low Voltage Ride-Through Technology for Direct-Drive Permanent Magnetic Wind Power System

2011 ◽  
Vol 383-390 ◽  
pp. 424-429
Author(s):  
Xin Zhang Huo ◽  
Xiang Ning Xiao
Keyword(s):  
Adverse Effect ◽  
Power System ◽  
Wind Turbine ◽  
Wind Power ◽  
Low Voltage ◽  
Direct Drive ◽  
Low Voltage Ride Through ◽  
Control Objective ◽  
On Line ◽  
Wind Power System

In recent years, the proportion of the wind power in the grid is increasing rapidly. In addition, the penetration of wind power in grid has been rising. It will lead adverse effect to grid, if the wind turbine off-grid during the fault of network. Wind power technology-leading countries have issued the quantitative standards of fault through which requires on-line operation .In this paper, the influence of wind turbines off-grid on the grid and turbines during the fault of grid is analyzed firstly. Meanwhile, the control objective of the low voltage ride through (LVRT) is proposed. Several types of LVRT technology for the Permanent Magnetic wind Power System are summarized and evaluated respectively. Finally, the developing direction of this technology is drawn from the above discussion.

A Review on Low Voltage Ride-Through Solutions for PMSG Wind Turbine

2014 ◽  
Vol 1070-1072 ◽  
pp. 209-215
Author(s):  
Mei Zhang ◽  
Hai Qin Xue ◽  
Shui Liang Zhou
Keyword(s):  
Power Systems ◽  
Wind Power ◽  
Low Voltage ◽  
Voltage Drop ◽  
Direct Drive ◽  
Low Voltage Ride Through ◽  
Voltage Drops ◽  
Wind Power System ◽  
Power Generation System ◽  
Wind Power Systems

The exiting of wind turbines will cause the adverse effect on the power grid and its assembling unit in network voltage drops. So, direct-drive wind power generation system should meet the requirement of the certain ability of low voltage. This paper introduces the influence of wind power system with different structure by voltage drop as well as the disadvantage and advantage on LVRT. The relate regulations based on LVRT are analyzed. The existing LVRT technologies of direct-drive wind power systems are briefly presented. The characteristics of each scheme from the different LVRT technology are analyzed. Moreover, further study of LVRT for PMSG is pointed out.

Low Voltage Ride through (LVRT) Control of Double-Fed Wind-Driven Generator

2012 ◽  
Vol 499 ◽  
pp. 400-404
Author(s):  
Jian Hong Zheng ◽  
Jie Feng Li ◽  
Yu Zhi Gao
Keyword(s):  
Power System ◽  
Wind Turbine ◽  
Wind Power ◽  
Control Method ◽  
Low Voltage ◽  
Voltage Drop ◽  
Power Grid ◽  
Rapid Development ◽  
Low Voltage Ride Through ◽  
The Impact

With the rapid development of the wind power, it is no longer an isolated power system and gradually incorporated in the local power grid. However, as the increasing proportion of the installed wind power capacity in the power grid, the affection of the wind turbine to the region power system is getting heavier, which inevitably bring some new problems to the power system. The low voltage ride through (LVRT) is the direct embodiment of the power quality. In this paper, we fist analyze the impact of the voltage drop on the double-fed wind turbine. Then, a LVRT control method is proposed based on hardware realization. The detailed explanation of the proposed control method is given at last.

Study of Improving Low Voltage Ride - Through Capability of Doubly - Fed Induction Generator by Using DVR

2014 ◽  
Vol 607 ◽  
pp. 531-535
Author(s):  
Chen Jian ◽  
Ren Yong Feng ◽  
Hu Hong Bin
Keyword(s):  
Power System ◽  
Wind Power ◽  
Low Voltage ◽  
Dynamic Voltage Restorer ◽  
Grid Voltage ◽  
Low Voltage Ride Through ◽  
Voltage Drops ◽  
Dynamic Voltage ◽  
Wind Power System ◽  
Doubly Fed

with the increasing proportion of wind power in whole power system ,the influence between wind power system and grid become more and more seriously ,so it is great important to research how to keep the connection between the wind power system and grid when grid voltage drops .The paper presents a new method to realize the low voltage ride - through (LVRT) of DFIG by using dynamic voltage restorer (DVR). Once the grid voltage drops,DVR will be put into use and produce compensation voltage to keep the stator side voltage steady .And it also can stop operation after the fault resolution.The paper builds a simulation model of DFIG and gives simulation results on PSCAD/EMTDC platform .

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