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Yao Z.,Hebei University | Han S.,North China Electrical Power University | Wang R.,Baoding Power Supply Company
Applied Mechanics and Materials | Year: 2012

With the purpose of lowering the problem to compile and maintain for GIS users this paper will demonstrate how to implement on power GIS editing system based on ArcEngine under .net environment. With the help of the GIS and the complex science of geometry network data organization it emphasizes the maintenance function of the electrical data to realize the analysis of the connectitvity of the whole network of the line. © (2012) Trans Tech Publications Switzerland.

Zhao Z.,North China Electrical Power University | Wang R.,Baoding Power Supply Company
Proceedings - 2010 3rd International Congress on Image and Signal Processing, CISP 2010 | Year: 2010

Infrared/visible image matching is a hot issue and challenge in the state-of-the-art research on image matching. A matching method of infrared/visible image is proposed based on edge extraction by applying a novel detector and descriptor with high performance, coined SURF (Speeded Up Robust Features), in view of the features that there is a large difference, even contrast inversion and consistent contour between infrared and visible image in image details. The method can solve the problem that infrared/visible image matching could not be completed by using SURF directly. It achieves good results with high speed according to the experimental results. ©2010 IEEE.

Xu Y.-Q.,North China Electrical Power University | Li X.-D.,North China Electrical Power University | Zhang J.-G.,Baoding Power Supply Company | Li P.,North China Electrical Power University
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2011

The paper discusses adding new load nodes in distribution system expansion planning. The total installed capacity of distributed generation expansion is determined according to the amount of new loads. Under the condition that the number of DG units, locations, and the capacity of DG units are unknown, a multi-agent genetic model for distribution planning with DGs is proposed, with an objective function of minimizing the network construction and operation costs. The location, capacity and the topology of the distribution system is globally optimized by multi-agent genetic algorithm. Through the proper designing of the competition and self-learning behavior for the adjustment of the value of the objective function, fast global convergence is achieved.

Zhu K.F.,North China Electrical Power University | Wang X.,North China Electrical Power University | Cai G.H.,Baoding Power Supply Company
Advanced Materials Research | Year: 2014

The article studies on the application of the shuffled frog leaping algorithm (SFLA) in power distribution network reconfiguration, taking the minimum loss and voltage quality of distribution network as a multi-objective function. The article improves the initial solution generation strategy of traditional genetic algorithm, which ensures the initial solution is feasible solution. Shuffled frog leaping algorithm and genetic algorithms are combined and proposed as shuffled frog leaping genetic algorithm (SFLGA). The algorithm uses the efficient coding strategy based on the basic loop and initial solution generation strategy, improves the calculation efficiency. The algorithm is verified by simulation results from test case on IEEE 33-bus system with distributed generations. © (2014) Trans Tech Publications, Switzerland.

Ge Y.-M.,North China Electrical Power University | Li B.-S.,North China Electrical Power University | Liang S.,Baoding Power Supply Company
Gaoya Dianqi/High Voltage Apparatus | Year: 2010

Insulators are important equipments on transmission line. The operation condition of insulator has direct effect on the safe running of the power network, so it's very important and necessary to inspect its surface state. In this paper, a method based on aerial images to detect the surface state of insulators is put forward. By establishing a mathematics model based on fuzzy comprehensive judgment, the method can be used to estimate the dirty state of insulator and whether there is a crack on the surface. The images screened on the helicopter can be analyzed by this way in the future.

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