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Wang W.,North China Electrical Power University | Tu C.,North China Baoding Electrical Power Voc And Technology College
Applied Mechanics and Materials | Year: 2010

Enterprise sustainable development emphasizes coordination of the development of economy, environment and society. The life cycle cost based on the sustainable development controls the engineering cost as well as environmental pollution and damage. The thermal power plant burns large amount of fossil fuels and discharge pollutants which cause serious pollution. Therefore the pollution control and ecological conservation make up important parts of construction and production cost, both of which are key parts of life cycle cost. This paper uses analytic hierarchy process and fuzzy comprehensive evaluation to estimate the life cycle cost and helps the enterprise to make social or temporal comparison and potentiality exploitation and to improve its sustainable development capability. © (2010) Trans Tech Publications.

Zheng H.,North China Electrical Power University | He Z.,North China Baoding Electrical Power Voc And Technology College
Proceedings of the 2012 International Conference on Computer Application and System Modeling, ICCASM 2012 | Year: 2012

In order to meet the request of fast access of power system simulation software base on Oracle, two methods based on OCI (Oracle Class Interface) technology are presented in this paper. The method of Binding array is used for reading data and the method of direct path load is used for writing Oracle database.Compared with prevalent ADO or ODBC technology, OCI has more efficient in writing or reading bulk data from Oracle. With these methods, it can meet the real time requirements of power system simulation. OCI has greater scope comparing with other methods, and OCI is more suitable for power system simulation requirements. At last, a simulation example and partial codes are provided. © The Authors.

Chen J.-H.,North China Baoding Electrical Power Voc And Technology College | Han Y.-Y.,Electrical Power and Automation Institute of Hebei | Wu W.-P.,North China Baoding Electrical Power Voc And Technology College
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control | Year: 2010

The multi-function electric power meter can not only measure the electric power, but also can manage electric power, register events and automatically excerpt the meter. The CPU of the multi-function electric-power is the chip PIC16F877A of NEC and the measuring chip is the ATT7022A of Juli in Zhuhai. The paper expatiates on the function of the chip, the structure of the hardware, and the software system etc.

Tu C.,North China Baoding Electrical Power Voc And Technology College | Li G.,North China Electrical Power University | Zhao L.,North China Electrical Power University
Advanced Materials Research | Year: 2011

The paper used Matlab to program for single-layer BP neural network, selected the annual energy consumption data as the training sample and inspection sample to train BP neural network, then, predict the future China's energy consumption quantity. © (2011) Trans Tech Publications, Switzerland.

Chen Y.,North China Baoding Electrical Power Voc And Technology College | Dou Y.,Harbin University of Science and Technology
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011 - Proceedings | Year: 2011

Based on the transformer winding inductance model which presented by P.I. Fergested, a new kind of calculation method is presented, which the inductance parameters are divided into the hollow inductance and core inductance two separate parts, each part is divided into self-inductance and mutual-inductance, while the related parameter values are discussed. The measurement results are consistent with the calculation results of the inductance parameters in an actual transformer winding model, which verifies the calculation method is correct and feasible, the theoretical basis can be provided for accurately analyzing the very fast transient process in the transformer winding. © 2011 IEEE.

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