Abstract
With the rapid development of the global economy, the interconnection of power grids has become an objective law and a trend of the power industry development. The implementation of power grid interconnection projects, especially transnational power grid interconnection projects, will bring us substantial benefits. To demonstrate these benefits comprehensively, we designed a comprehensive evaluation index system with multiple international engineering characteristics. The index system takes the influencing factors of economic, social, environmental and technical benefits into account. In order to improve the rigidity and power of weight determination, we proposed the least squares method which combines the order relation method and the factor analysis method. Furthermore, the limitation of the one-way evaluation was effectively overcome by combining TOPSIS (Technique for Order Preference by Similarity to an Ideal Solution), grey relation analysis method and vector projection method. In addition, we adjusted the potential impact of the time on evaluation by using the quadratic weighted algorithm, so that we can dynamically evaluate the comprehensive benefits. Finally, we verified the established index system and evaluation model through an example of eight different investment plans of a transnational high voltage direct current (HVDC) transmission project. Altogether, results from this paper will provide a guidance reference and decision support for the grid corporation to invest in transnational power grid interconnection projects.
Highlights
As the global economic community develops rapidly, energy consumption continues to grow
Pei Bie et al [2] believed that the economic benefits brought by the wind power plant is modeled as an integrated savings run cost, and used the Probabilistic Load Flow-Based On Cumulant Method (PLF-CM) to calculate the savings run cost
The main principles of building the comprehensive benefit evaluation index system of such projects are described as follow: (1) This paper is based on the characteristics of high complexity and various factors of transnational interconnection project
Summary
As the global economic community develops rapidly, energy consumption continues to grow. Regional economic integration, the optimal utilization of energy resources, and the improvement of power supply reliability can promote the interconnection of transnational power grids and make them sustainable. The construction of such projects will bring huge economic, social, environmental and technical benefits. With the advent of globalization and informatization, the evaluation of project benefit has been gradually developed from a single benefit index to comprehensive evaluation including economic, social, environmental and technical benefits [13] Most of these studies are static evaluations, that is to say, the comprehensive benefits of the project are evaluated by the mean value of different time periods. These evaluation methods have their own characteristics, but they often find it difficult to overcome their own limitations and still need further optimization
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
