China-Central Asia Power Cooperation Outlook

After analyzing the basic information,distribution of energy resources and condition of power industry in Central Asia,the high feasibility for China to cooperate closely with Central Asia in transnational power interconnection,power investment and technology exchanges,etc.is studied.Furthermore,the forms,mechanisms,existing problems and suggestions for the improvement of current policies related to the power cooperation are proposed.

Power allocation and mode selection methods for cooperative communication in the rectangular tunnel

For the multipath fading on electromagnetic waves of wireless communication in the confined areas,the rectangular tunnel cooperative communication system was established based on the multimode channel model and the channel capacity formula derivation was obtained.On the optimal criterion of the channel capacity,the power allocation methods of both amplifying and forwarding(AF) and decoding and forwarding(DF) cooperative communication systems were proposed in the limitation of the total power to maximize the channel capacity.The mode selection methods of single input single output(SISO) and single input multiple output(SIMO) models in the rectangular tunnel,through which the higher channel capacity can be obtained,were put forward as well.The theoretical analysis and simulation comparison show that,channel capacity of the wireless communication system in the rectangular tunnel can be effectively enhanced through the cooperative technology;channel capacity of the rectangular tunnel under complicated conditions is maximized through the proposed power allocation methods,and the optimal cooperative mode of the channel capacity can be chosen according to the cooperative mode selection methods given in the paper.

Improved multi-objective artificial bee colony algorithm for optimal power flow problem

The artificial bee colony(ABC) algorithm is improved to construct a hybrid multi-objective ABC algorithm, called HMOABC, for resolving optimal power flow(OPF) problem by simultaneously optimizing three conflicting objectives of OPF, instead of transforming multi-objective functions into a single objective function. The main idea of HMOABC is to extend original ABC algorithm to multi-objective and cooperative mode by combining the Pareto dominance and divide-and-conquer approach. HMOABC is then used in the 30-bus IEEE test system for solving the OPF problem considering the cost, loss, and emission impacts. The simulation results show that the HMOABC is superior to other algorithms in terms of optimization accuracy and computation robustness.

Major Powers Cooperate in a Mild and Coordinated Way

Lu:If the tense situations in the Middle East and Northeast Asiabecome relaxed,it would certainly exert great influence on world politi-cal pattern.Can non-traditional security solve the contradictions in thetraditional security field?Will the major powers continue to cooperate inthe anti-terrorist campaign?All these issues will face challenges

Shandong Province cooperates with overseas to expedite its power development

A co-operative contract to set up China’s largest joint-venture power project in Shandong Province, was initiated by.four partners on June 7 at Beijing’s Great Hall of the People. The project’s total investment is expected to be about $2.3 billion, of which a little over $1 billion will be raised overseas. The partners in the massive power projects are Shandong Electric Power Corp, Shandong International Trust and Investment Corp, Electricite de

A fast power control method based on high-speed communication for the continuous co-phase traction power system

Continuous co-phase traction power system is an effective method to eliminate neutral sections and provide high quality power for both the public grid and the catenary.The substations have the ability to provide cooperative support to each other to reduce capacity and improve system reliability.A fast power control method for substations is needed due to rapid load changes and low overload capability of the system.This paper proposes a fast power control method based on high-speed communication between substations,with additional transient power control to significantly improve the dynamic response of the system.

The Architecture and Trend of Competitive Cooperation between Two Major Powers in Asia-Pacific and China’s Diplomacy

The rise of China and the strategic readjustments of the United States catalyzes major changes with four new features for the Asia-Pacific geo-space. A, the Asia-Pacific geo-economic map witnesses a double competitive pattern. B, geo-security space shows a Sino-U.S. competitive and low-cooperative trend. C, geopolitical environment highlights the development model competition. D, the high-tech becomes the new driving force for the Asia-Pacific geo-environment changes. The domestic and overseas concerns with the status and prospects of the Asia-Pacific geo-environment focus on a debates between a resistant and confrontational architecture and a competitive cooperation trend. The author believes that the conditions for the resistant and confrontational pattern are no longer in existence and the regional pattern should be promoted in a direction of competitive cooperation.