Fault diagnosis of wind energy conversion systems with sensor faults

2013 ◽  
Author(s):  
J.H. Zhang ◽  
M. Jiang ◽  
J. Xiong ◽  
G.L. Hou ◽  
M.F. Ren
Keyword(s):  
Fault Diagnosis ◽  
Wind Energy ◽  
Energy Conversion ◽  
Sensor Faults ◽  
Wind Energy Conversion ◽  
Wind Energy Conversion Systems ◽  
Energy Conversion Systems

Filter-Based Fault Diagnosis of Wind Energy Conversion Systems Subject to Sensor Faults

2016 ◽  
Vol 138 (6) ◽  
Author(s):  
Jianhua Zhang ◽  
Jing Xiong ◽  
Mifeng Ren ◽  
Yuntao Shi ◽  
Jinliang Xu
Keyword(s):  
Wind Energy ◽  
Energy Conversion ◽  
Estimation Error ◽  
Operational Reliability ◽  
Optimization Criterion ◽  
Sensor Faults ◽  
Wind Energy Conversion ◽  
Wind Energy Conversion Systems ◽  
Energy Conversion Systems ◽  
Non Gaussian

The operational reliability of wind energy conversion systems (WECSs) has attracted a lot of attention recently. This paper is concerned with sensor fault detection (FD) and isolation problems for variable-speed WECSs by using a novel filtering method. A physical model of WECS with typical sensor faults is first built. Due to the non-Gaussianity of both wind speed and measurement noises in WECSs, an improved entropy optimization criterion is then established to design the filter for WECSs. Different from previous entropy-filtering results, the generalized density evolution equation (GDEE) is adopted to reveal the relationship among the estimation error, non-Gaussian noises, and the filter gain. The sensors FD and isolation algorithms are then obtained by evaluating the decision rule based on the residual signals generated by the filter. Finally, simulation results show that the sensor faults in WECSs can be detected and isolated effectively by using the proposed method.

Study on Fault Diagnosis Platform in Wind Energy Conversion Systems Based on JESS

2011 ◽  
Vol 230-232 ◽  
pp. 925-929
Author(s):  
Wang Shen Hao ◽  
Feng Qin Li ◽  
Jie Han ◽  
Xin Min Dong ◽  
Hong Chen
Keyword(s):  
Fault Diagnosis ◽  
Wind Energy ◽  
Energy Conversion ◽  
Condition Monitoring ◽  
Wind Energy Conversion ◽  
Wind Generators ◽  
Wind Energy Conversion Systems ◽  
Energy Conversion Systems ◽  
Energy Conversion System ◽  
Monitoring Platform

There is a constant need for the reduction of operational and maintenance costs of Wind Energy Conversion System(WECS). The most efficient way of reducing these costs would be to continuously monitor the condition of these systems, which allows for early detection of the degeneration of the generator health, facilitating a proactive response, minimizing downtime, and maximizing productivity. Wind generators are also inaccessible since they are situated on extremely high towers.There are also plans to increase the number of offshore sites increasing the need for a remote means of WECS monitoring that overcomes some of the difficulties of accessibility problems. Therefore it is important of condition monitoring and fault diagnosis in WECS. The monitoring schemes of transfer its monitor status with JESS technology was put forward in this paper. A remote condition monitoring platform (RCMP) was designed and constructed in this project. And its result brings us an effective solution to deal with the WECS condition monitoring.

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