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Li B.,CAS Shenyang Institute of Automation | Li B.,Henan Polytechnic University | Li B.,University of Chinese Academy of Sciences | Wu D.,CAS Shenyang Institute of Automation | And 4 more authors.
Proceedings of the 2012 4th International Symposium on Information Science and Engineering, ISISE 2012 | Year: 2012

We present a very efficient approach for insulators detection. Unlike previous texture-based approach, we directly search insulators location in the images by using Profile projection. For overcoming the negative effect of image noise on object detection, we preprocess insulators image by thresholding method. To make insulators detection more effective and efficient, we design a tilt correction method based on principal component analysis. The correction enables our method to derive accurate feature extraction curve from insulators image, then we extract five features from the feature curve, which are related to the number of binary sequence and the normalized variance of the binary sequence length. After obtaining the insulators feature from an image, we apply SVM to identify insulators with the five features. Some experiments on video frame images show that our approach significantly outperforms the state-of-the-art in term of both accuracy and efficiency. © 2012 IEEE. Source


Ming-Jiang Z.,Heilongjiang Electrical Power Research Institute | Xi-Lin Z.,Changchun Power Supply Company | Zhen-Hao W.,Northeast Dianli University | Ling W.,Benxi Power Supply Company
Applied Mechanics and Materials | Year: 2014

DFACTS devices can synthetically manage power quality problems. As one of the most DFACTS devices, the coordinated control of multi-distribution static var compensator should be considered. Controllers are separately designed aiming at different functions, that means the controllers are isolated even contradictory. In allusion to the problem that the separately designed DFACTS controllers exist interactions, the paper turns the coordination of the DFACTS controller into multi-objective optimization problem, takes the single-load infinite-bus distribution system with two DSVC as the research object, using the Non-dominated Sorting Genetic Algorithm with elitism approach (NSGA-II) for DFACTS controller parameters optimization, and the simulation results show the effectiveness of the algorithm. © (2014) Trans Tech Publications, Switzerland. Source


Pang Z.,Benxi Power Supply Company | Liu G.,Benxi Power Supply Company | Ma W.Z.,Benxi Power Supply Company | Meng F.B.,Liaoning Electrical Power Company Ltd
Advanced Materials Research | Year: 2013

We study the overload control problem of application server in the next generation electric communication network in this paper. We introduce an energy efficiency overload control algorithm based on simulated annealing. Firstly, by considering the overload control and energy efficiency, we construct the relations function between the input rate control and energy efficiency using rate allocation. Then, we construct the optimal overload control model of energy efficiency by regarding this relation function as objective function and overload control as constraint conditions. Thirdly, we use simulated annealing algorithm to solve this model, and then obtain the optimal solution during the iterative process. The simulation results show that our algorithm is feasible and effective. © (2013) Trans Tech Publications, Switzerland. Source


Ma W.Z.,Benxi Power Supply Company | Li Y.H.,Benxi Power Supply Company | Song M.R.,Benxi Power Supply Company | Meng F.B.,Liaoning Electrical Power Company Ltd
Advanced Materials Research | Year: 2013

This paper studies the overload control problem of the Parlay gateway in next-generation electric power communication network. First, this paper analyses the effectiveness and fairness of the overload control of the Parlay gateway. And then taking the energy efficiency of the electric power communication network as target, we establish the optimization model of energy efficiency overload control. Thirdly, we put forward an energy efficiency overload control algorithm based on the ant colony algorithm. Simulation results show that our algorithm is feasible and effective. © (2013) Trans Tech Publications, Switzerland. Source


He S.,CAS Shenyang Institute of Automation | He S.,University of Chinese Academy of Sciences | He S.,Shenyang Institute of Engineering | Liu G.,Benxi Power Supply Company | And 2 more authors.
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering | Year: 2013

In recent years, the use of unmanned aerial vehicle(UAV) for power transmission line detection is a hot technology, and it can detect the transmission line and discriminate the failure without power off. According to the features of power transmission line equipments, a method of equipments recognition based on image processing and pattern recognition was put forward. It preprocessed the aerial images by median filtering, dilating and eroding. Then, wavelet eigenvalues of preprocessed images were calculated. Finally, the objects, such as insulator, vibration damper and transmission tower, were classified and recognized by affinity propagation (AP) clustering algorithm. The results of experiments show that this method can recognize the insulator, vibration damper and transmission tower, and it has better robustness, accuracy and validity. Source

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