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.

Behavior Analysis of the DFIG Wind Turbine in Voltage Double-Dip

2013 ◽  
Vol 805-806 ◽  
pp. 382-386
Author(s):  
Yong Sun ◽  
Chen Chen ◽  
Rui Ming Wang ◽  
Shao Lin Li ◽  
Jin Ping Zhang
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Low Voltage ◽  
Initial Value ◽  
Low Voltage Ride Through ◽  
Voltage Dip ◽  
Voltage Dips ◽  
Safety And Reliability ◽  
Stator Flux ◽  
The Impact

At present, the research on wind turbine low voltage ride through (LVRT) behavior is one of hotspots in wind power industry. With increasing share of wind power in the grid, it is important to enhance the LVRT performance of wind turbines to guarantee the safety and reliability of the grid. The phenomenon of voltage double-dip is one of cases during the voltage dips. In this paper, the voltage double-dip phenomenon is described, and the stator flux attenuation of DFIG wind turbine in the voltage dip is analyzed. The results show that when the second voltage dip occurs, the initial value of the stator flux should be considered. Finally, by on-site testing results, the impact of voltage double-dip to the wind turbine is verified, if the initial value of the stator flux is not considered, and the interval of two voltage dips is different.

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.

scholarly journals Impact of high WPPs penetration on the Vietnam Power System

1970 ◽  
Vol 9 (2) ◽  
pp. 142-149
Author(s):  
Hanh Thi Nguyet Nguyen ◽  
Vijay Vittal
Keyword(s):  
Power System ◽  
Wind Power ◽  
Power Plants ◽  
Low Voltage ◽  
Low Voltage Ride Through ◽  
Wind Power Plants ◽  
Dynamic Voltage ◽  
Voltage Performance ◽  
Installed Capacity ◽  
The Impact

Wind power installed capacity is expected to reach 1,000 MW and 6,200 MW in the Vietnam Power System (VPS) in 2020 and 2030, respectively. But detailed dynamic analysis of the wind power plants’ (WPPs) integration into the VPS is still scarce. In this paper, first, the impact of WPPs’ integration on the dynamic voltage performance and the wind turbine generator (WTG) low-voltage-ride-through (LVRT) requirement in the VPS for the year 2020 is studied. Then, case studies on the VPS for the year 2020 with different levels of wind penetration and different values of WTG’s maximum allowable voltage sag are studied. Simulation results show that the 2020 VPS can lose as much as 1,000 MW (100%) of WPP’s generated power following a severe contingency if the WTG’s LVRT capability is not considered. In some scenarios, the loss of WPPs’ generated power can cascade into a power system islanding situation which in turn could cause massive load shedding (15%) in the load-rich subsystem and result in wide variations of the electrical parameters of generators near the islanding boundary.

Comparative Study on Low Voltage Ride-Through Test Methods for Grid-Connected Photovoltaic Inverter

2014 ◽  
Vol 590 ◽  
pp. 495-499
Author(s):  
Wen Jin Wu ◽  
Jian Hui Su ◽  
Hai Ning Wang
Keyword(s):  
Large Scale ◽  
Low Voltage ◽  
Voltage Drop ◽  
Power Grid ◽  
Design For Test ◽  
Grid Voltage ◽  
Low Voltage Ride Through ◽  
Technical Requirements ◽  
Test Platform ◽  
The Stability

The large scale photovoltaic plants have more effects on the stability of regional power grid with the rapid increase of photovoltaic generation ratio in some areas. According to the grid guideline, the photovoltaic inverter is required to maintain the running status even the grid voltage drops and needs to have the capability to contribute towards the stability of power grid voltage and to support the grid voltage ride through. To test the ability of photovoltaic inverter low voltage ride through (LVRT), the test platform to simulate all kinds of fault for voltage drop needs to be set up. By the low voltage through technical requirements, this paper puts forward three kinds of design for test platform and analyzes respective work principle and characteristics, in order to provide optimization solution for the low voltage ride through test work.

Grid Tripping and Re-connection: Full-scale Experimental Validation of a Dynamic Wind Turbine Model

2003 ◽  
Vol 27 (3) ◽  
pp. 205-213 ◽  
Author(s):  
Niels Raben ◽  
Martin Heyman Donovan ◽  
Erik Jørgensen ◽  
Jan Thisted ◽  
Vladislav Akhmatov
Keyword(s):  
Wind Turbine ◽  
Wind Power ◽  
Wind Farm ◽  
Power Grid ◽  
System Stability ◽  
Turbine Generator ◽  
Wind Turbine Generator ◽  
Shaft System ◽  
The Impact ◽  
Turbine Model

An experiment with tripping and re-connecting a MW wind turbine generator was carried out at the Nøjsomheds Odde wind farm in Denmark. The experimental results are used primarily to validate the shaft system representation of a dynamic wind turbine model. The dynamic wind turbine model is applied in investigations of power system stability with relation to incorporation of large amounts of wind power into the Danish power grid. The simulations and the measurements are found to agree. The experiment was part of a large R&D program started in Denmark to investigate the impact of the increasing capacity of wind power fed into the Danish power grid.

External Network Equivalent of Wind Power Simulation for Fu Jian

2013 ◽  
Vol 385-386 ◽  
pp. 1017-1020
Author(s):  
Chuan Dong Li ◽  
Jin Jin Xu ◽  
Hou Yu He
Keyword(s):  
Wind Power ◽  
Power Grid ◽  
Rapid Development ◽  
Transient Simulation ◽  
Detailed Model ◽  
Wind Power Integration ◽  
Power Simulation ◽  
Electromagnetic Transient Simulation ◽  
External Power ◽  
The Impact

In recent years, there was a rapid development of wind power. The impact of large amount of wind power integration into power system on the voltage and power quality could not be ignored. The characteristic of internal dynamics of wind turbine was complicated, as a result, it could not be simulated by electromechanical transient simulation soft (BPA). It was necessary for transformation from BPA to PSCAD which was electromagnetic transient simulation program. However, the modeling work for the external power grid was enormous and meaningless. In this paper, external network was equivalent based on the BPA data of actual grid combined with PSCAD. This method not only could simulate the influence both simple and effective, but also could establish the detailed model of the regional power grid and wind power. At the same time it has been effectively used in the analysis of wind power integration into actual wind projects of Fujian power grid which achieved very good results.

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.

Sign in / Sign up

Export Citation Format

Share Document