Jilin Power Supply Corporation

Jilin, China

Jilin Power Supply Corporation

Jilin, China
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Wang Y.,Northeast Dianli University | Du M.,Jilin Power Supply Corporation | Zhang W.,Luoyang Power Supply Company | Zhang R.,Luoyang Power Supply Company
World Automation Congress Proceedings | Year: 2012

The traditional way of oil shale development and utilization often focus only on industry economic performance, but ignore the overall environmental and social benefit, which cause severe environmental destruction usually. It is a very efficient way to design an ecological industrial chain in order to promote utilizing efficiency on oil shale development. This measurement will coordinate protecting environment and promoting efficiency in the oil shale development. © 2012 TSI Press.

Zheng Y.,University of Jinan | Ma L.,Jilin Power Supply Corporation | Wu Y.,Jilin Power Supply Corporation | Feng Z.,University of Jinan
Advanced Materials Research | Year: 2013

To analyze the operating orders in distribution network with multi-power supply and prevent mal-operation, the topological analysis algorithm and the logic-based analysis algorithm are proposed in this paper. In the topological analysis algorithm, the procedures of opening and closing breakers, isolating switches, and grounding device are expounded, which are based on the topological information of distribution network. In the logic-based analysis algorithm, the operating orders are analyzed according the collocated logical expressions. It needs abundant of artificial information, but it has strong ability to express. The experimental results show these algorithms can determine the simulating operation orders in short response time. © (2013) Trans Tech Publications, Switzerland.

Xu G.,Hohai University | Ma H.-Z.,Hohai University | Chen Y.,Jilin Power Supply Corporation
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2013

This paper briefly describes the application and principles of the critical impedance method (CIM) in the main harmonic source detection, focusing on the analysis of the reasons for the CIM errors in both ends of the source network, and the effect of the error on the main harmonic source detection. Single rank Broyden method is proposed to correct the critical impedance, which has the advantages of smaller amount of computing than the Newton method, less dependence on the initial value, etc. MATLAB simulation of two examples show that using this method to correct the critical impedance can accurately identify the main harmonic source, greatly improve the accuracy of critical impedance method in the harmonic source detection, and enhance the practical value of the critical impedance in the main harmonic source identification.

Xiao B.,Northeast Dianli University | Mu G.,Northeast Dianli University | Li P.,Northeast Dianli University | Yang Y.,Jilin Electrical Power Co. | And 2 more authors.
Dianli Xitong Zidonghua/Automation of Electric Power Systems | Year: 2010

By an analysis of the main factors that cause inaccuracies in the spatial load forecast (SLF) method based on time series, a time series mismatch corrective method for identifying and correcting load transfer is proposed. The temporary load transfer often occurring between cellules is divided into two types, i. e. cross-unit time load transfer and non-cross-unit time load transfer. With the time series mismatch corrective method, improved load transfer coupling (LTC) is used to overcome the negative impact on the SLF due to cross-unit time load transfer, while the cumulative load curve for determining the maximum load of each cellule is used to overcome the negative impact on the SLF due to non-cross-unit time load transfer. A practical SLF case has shown the applicability and effectiveness of the method proposed. © 2010 State Grid Electric Power Research Institute Press.

Zhou X.-T.,Beijing Jiaotong University | Wang W.,Beijing Jiaotong University | Ni P.-H.,Beijing Jiaotong University | Chi Z.-W.,Jilin Power Supply Corporation | Jiang F.-L.,Jilin Power Supply Corporation
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2010

A device for acquiring leakage current on high voltage insulator is designed and implemented in this paper. With the application of current-voltage conversion circuit composed by high-speed operational amplifiers, the times of high-frequency current pulse and the virtual value of the leakage current are gathered and the difficulties caused by making current sensor of broad pass-bandwidth and wide current range can be avoided. By using an absolute circuit, the design of circuit is optimized and the range of leakage current is widened. After analyzing the error of the device, a way to improve precision is presented in this paper. The test result shows that the devise has high measurement precision and good capability.

Qu Z.,Northeast Dianli University | Xu P.,Northeast Dianli University | Ren Y.,Jilin Power Supply Corporation
Journal of Communications | Year: 2016

Power information operation and maintenance knowledge overload has become a pressing issue with the development of smart grid construction. The traditional personalized recommendation method cannot meet the demand of personalized recommendation of power information maintenance knowledge in big data environment. This paper proposes a method based on Spark which gives a personalized recommendation method of power information operation and maintenance knowledge. Firstly, an implicit rating mechanism is introduced, which can transform the learning behavior of users into implicit rating of power information operation and maintenance knowledge. Secondly, a personalized recommendation method combing knowledge features and user interests is designed. Finally, the personalized recommendation method, based on Spark, is applied to recommend power information operation and maintenance knowledge. The experimental results show that the method can effectively improve the accuracy and real-time of recommendation. © 2016 Journal of Communications.

Cai G.W.,Northeast Dianli University | Wang Y.G.,Northeast Dianli University | Jiang Y.J.,Jilin Power Supply Corporation | Li T.F.,Jilin Power Supply Corporation
Applied Mechanics and Materials | Year: 2013

By revised method of fitting magnetization curve in segment, technique of simulating the nonlinear characteristic of laminated core is enhanced. The DC-bias problem is computed based on the time-domain magnetic-circuit coupled model while considering the saturated and unsaturated magnetizing characteristics of the laminated core. Experiments are designed to verify the validity of the proposed method, and then the volt-ampere feature of unsaturated magnetization is learned. Consequently, the results indicate that the improved method is more accurate and efficient by contrast. © 2013 Trans Tech Publications Ltd, Switzerland.

Qu Z.Y.,Northeast Dianli University | Bo X.Y.,Northeast Dianli University | Diao Y.L.,Northeast Dianli University | Wang L.,Northeast Dianli University | And 2 more authors.
Advanced Materials Research | Year: 2014

Power industry informational has become the general trend in new era, for power dispatching operation and maintenance center, how to ensure that normal operation of various software and hardware resources is a important yet unsolved problem. The paper makes full use of operation and maintence supervision method, presents a information operation and maintenance fault diagnosis model based on FP-Growth association rules algorithm for power grid enterprise. Firstly, information system operation and maintenance supervision model of power grid is described, according to power enterprise regulations and practical experience of operation and maintenance personnel, it makes a series of operation and maintenance indicators. Then above this foundation detailing the fault diagnosis model is constructed, analyzing diagnosis reasoning process under the different the case of non-compliance indicators, and applying it to the actual operation project that the power grid enterprise information system real-time monitoring plat-form (ISRMP). Finally, preliminary application of ISRMP in Information and Communication Company of Jilin Electric Power. © (2014) Trans Tech Publications, Switzerland.

Xiao B.,Northeast Dianli University | Xu X.,Northeast Dianli University | Mu G.,Northeast Dianli University | Tian L.,Jilin Power Supply Corporation
Dianli Xitong Zidonghua/Automation of Electric Power Systems | Year: 2014

In view of the problem that abnormal cellular load will bring about adverse effects to the spatial load forecasting, a probability spectrum method for ascertaining the maximal value of cellular load is proposed. By proceeding from the planning demand and combining with the actual operation mode of the urban power network, the method classifies the abnormal data in cellular load and clarifies their different modes of impact on spatial load forecasting. It also reveals the internal connection between the data needed and load transfer, non-stationary growth and abnormal conditions of cellular load. By computing the probability spectrum of cellular load, the characteristics of different kinds of abnormal data are described and depicted. Then the maximal value of cellular load is limited and restrained on the cellular probability spectrum curve treated by Gauss fitting technique. Finally, a case study shows that the prediction accuracy is appreciably improved by the maximal load using the method. ©2014 State Grid Electric Power Research Institute Press

Cai G.W.,Northeast Dianli University | Wang Y.G.,Northeast Dianli University | Han D.,Jilin Power Supply Corporation | Song W.G.,Jilin Power Supply Corporation
Applied Mechanics and Materials | Year: 2014

To ensure the normal operation, calculation of electric field in ultra-high voltage substation is particularly important. A line model is proposed to simplify current model and improve computational efficiency. Combining this model with boundary element method, this article described a method to calculate the electric field at the vicinity of complex equipment of ultra-high voltage substation. An actual substation environment is also simulated, with detailed analysis of simulation results, proposed model and method are verified as valid and effective. © (2014) Trans Tech Publications, Switzerland.

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