On Core Competitiveness Evaluation Model of Power Generating Enterprises Based on Knowledge Management

Based on summing-up current power market environment where power generating enterprises are, this paper elaborates relevant theories to knowledge management and core competitiveness of power generating enterprises. Combining current situation and demand of Chinese power generating enterprises, we construct core competitiveness evaluation index system of power generating enterprises based on knowledge management. Then we use Radar Map and the improved entropy of the Topsis method for reference to establish core competitiveness evaluation model of power generating enterprises. Finally, we systematically elaborate the applicability of core competitiveness rating model of power generating enterprises, and summarize the applicable value and insufficient of the model.


Preface
Start with fund-raising power, the diversity of power system has grown up.The reform of power system is being promoted, power market is being established, and a series of power supervision and running rules have been introduced gradually, so power generating enterprises are in a completely new market environment.How to promote core competitiveness in the emerging power market environment is a big question that every power generating enterprise has to face.The purpose of this paper is to combine present situation and demand of Chinese power generating enterprises, in order to construct core competitiveness evaluation index system and model method of power generating enterprises based on knowledge management.Power generating enterprises will find gap through evaluating their and their competitors' competitiveness and comparing index system, so that they can improve competitiveness accordingly.

Knowledge Management
Knowledge management is a new term in management field, however, for its definition; there has been no unitive conclusion yet.At present, there are dozens of definitions on knowledge management.Two typical definitions are as follows.
Verna Alee thinks: "Knowledge management is a kind of technique helping people to consider the knowledge they have, and help, develop and support them for knowledge communication.And it also helps people to achieve knowledge source and to promote knowledge communication with each other."Chinese scholars have proposed their own ideas on the content of knowledge management as well.Jiapei Wu claims: "Information management is the base of knowledge management.And knowledge management is the extension and development of information management.It is different from the previous stages of information management, connecting information with information, information with activity, information with person, which applies team intelligence to innovate and gain competitive advantage through information and knowledge share during interactive process of interpersonal communication."Knowledge management consists of object, subject, mode of action and tool.

Corporate Core Competitiveness
Corporate core competitiveness could be regarded as knowledge form of how to coordinate using all corporate resources.For instance, corporate culture could be looked upon as closed knowledge of what to do and how to do it.Corporate core competitiveness is a corporate internal characteristic and unique technique and intelligence accumulated in a long term in a corporation.
The effects of corporate core competitiveness on corporate competitive advantages are mainly represented as: (1) improve corporate market competitive potential; (2) construct corporate competitive advantage; (3) maintain corporate long-term competitive advantage.

Construction of Core Competitiveness Evaluation Index System of Power Generating Enterprises based on Knowledge Management
Core competitiveness evaluation index system of power generating enterprises based on knowledge management should entirely represents comprehensive strength and advantage of power generating enterprises, which determines whether power generating enterprises can be provided with a quantitative and operable base.Literature 3 has constructed comparatively entire core competitiveness evaluation index system of power generating enterprises.Basing on this system, we make improvement.considering current situation and demand of Chinese power generating enterprises, we think core competitiveness evaluation index system of power generating enterprises based on knowledge management should includes four evaluation factors: scale resource strength, system foundation ability, technical management ability and culture knowledge ability.See Table 1 Insert Table 1 Here.

Core Competitiveness Two-Evaluation Model of Power Generating Enterprises based on Knowledge Management
There is an evaluation model called Radar Map, see Literature 2. It is a kind of graphic method, which shows evaluation index of object system with planar graph.In order to guarantee the validity of evaluation, herein we suggest using one more evaluation method-the improved entropy of the Topsis method, to test and supplement Radar Map.

Radar Map
We establish core competitiveness evaluation model of power generating enterprises based on Radar Map, see Figure 1.
Insert Figure 1 Here Radar Map can not only vividly, obviously, and accurately express the difference and core competitiveness of investigation enterprises, but also calculate all aspects more specifically.Calculation and grading methods are as follows.
(1) The evaluation model circle is divided into 4 regions, i.e. scale resource strength, system foundation ability, technical management ability and culture knowledge ability, which are distributed on respective index volume.The core competitiveness of each region is calculated as follows.
(3) Through area integral, we can figure out the value of basic competitiveness region and of core competitiveness region so as to learn real situation of evaluated enterprise compared to benchmarking enterprise by quantitative analysis.
(4) We can calculate whole area of evaluated enterprise, and then compare it with that of benchmarking enterprise to see the difference of "core competitiveness".

Improved Entropy of the TOPSIS Method
TOPSIS method (distance integration method) is a kind of evaluation method based on space statistics, which determines reference point in a space through transforming statistic data into point of Multi-dimensional coordinates, i.e. ideal value point and negative ideal value point.And then the distance between individual sample point and reference point is figured out for analysis and evaluation.Evaluation steps are as follows.
(1) Assume there are i to-be-evaluated power generating enterprises, and j evaluation index.So original data matrix is (2) Choose the optimal value of each evaluation index X * j.If j is positive index, the bigger the better; if j is negative index, then the smaller the better.
(3) Define the proximity of X ij to X * j, D ij .
with Hmax and get entropy value showing the importance of evaluation index.
+ is the distance between sample point and optimal sample point; D i -is that between sample point and worst sample point.
From the formula of C i we can see, enterprises with bigger C i is better than those with smaller C i. Therefore, we can rank the core competitiveness of different enterprises.

Conclusion
Through evaluating core competitiveness of power generating enterprises, we can not only see corporate real situation systematically, but also find out some weakness.The core competitiveness evaluation index system of power generating enterprises based on knowledge management proposed by this paper is closed to practice and also guarantee the accuracy.Furthermore, we established a two-model, Radar Map and the improved entropy of the Topsis method, which provides power generating enterprises with ideas for promoting core competitiveness.Moreover, a few questions in this paper haven't been deepened, such as empirical research on core competitiveness of power generating enterprises.At the same time, the big influential factors on the competitiveness of power generating enterprises are changing continuously with big future uncertainty; therefore, the research on system is only at present, which depends on further research to get improved."Three emphasis and one importance"decision-making system

X231
Economic responsibility audit and monitor the rectification X232 Determine reference sample, including optimal sample Y + and worst sample Y -.Herein: Optimal sample 8) Figure out comparative proximity between sample point and optimal sample point, C i ,0 1

Table 1 .
Core Competitiveness Evaluation Index System of Power Generating Enterprises