| Electric transmission line unplanned shut down, refers to expect power company period maintenance and annual development projects, which was by ender user, reconstruction or External force damage caused transmission line abnormally shut down.Currently domestic and international research on this field is not too much.This unplanned shut down will change the network structure, impact on power dispatch and maintenance, even threaten the safe and stable operation of power grids, brings additional economic burden to the power company, therefore need to give economic compensation of power company.Nowadays only direct cost is taken into consideration in the research on pricing mechanism of compensation to the unplanned shut down. The evaluation of the cost of power grid, induced by the unplanned shut down, is depended on experience, no specific indicators and criteria. Due to lack of theoretical basis for compensation many contradictions occur between the customers and the power company even the government and the power company. So it is necessary to carry a deep research on the evaluation of impact, which induced by unplanned shut down, to the power grid. And a set of fair and reasonable economic compensation principle must be formulated to solve the above problems.This article focus on the unplanned shut down problems in the operations of extra high voltage transmission line in shanghai area, profound analysis of the effect of unplanned shut down power system, focusing on the pricing mechanism of transmission line non planned outage related business problems, circumfusing on current economic cost accounting methods, discussing the transmission line economic cost pricing principles of unplanned shut down, put forward the effect of unplanned shut down, so as to calculate the economic compensation power company deserve. And through an example to verify the feasibility of the method, and proves the validity of economic cost pricing strategy. |
