Investment ranking evaluation method of power network planning project in new electric power reform environment

A technology for power grid planning and planning projects, which is applied in the field of investment ranking and evaluation of power grid planning projects under the new power reform environment. It can solve the problems of not considering the construction period, evaluation deviation, and only considering the investment benefits of the power grid, so as to reduce investment risks and comprehensive indicators. Effect

Active Publication Date: 2019-01-08
JIANGSU ELECTRIC POWER CO +1
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: to solve the inoperability caused by the investment efficiency of the power grid in the past investment ranking index

Method used

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  • Investment ranking evaluation method of power network planning project in new electric power reform environment
  • Investment ranking evaluation method of power network planning project in new electric power reform environment
  • Investment ranking evaluation method of power network planning project in new electric power reform environment

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Embodiment 1

[0040] Embodiment 1: with figure 2 The IEEE-RTS79 node system shown is an example. Assuming that the transmission line is overloaded due to the increase of the regional load, it is necessary to add a new transmission line and expand or replace the corresponding substation equipment. Planning items (1, 2, 3, 4) see figure 1 shown by the dotted line in . The marketization rate is set at 0.3.

[0041] Project 1: The load at bus 6 is increased by 136MW. It is planned to build a new transmission line with a length of 25.76km between node 6 and node 10, and add an 80MVA transformer at the same time. The construction cost of the transmission line project is 1.4 million yuan / km, the cost of the transformer project is 400,000 yuan / MVA, the total planned investment is 68.86 million yuan, the project construction period is 2 years, and the annual investment is 34.43 million yuan; the equipment is decommissioned after 18 years of operation, and the annual operating cost 5 million yua...

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Abstract

The invention discloses an investment ranking evaluation method of a power network planning project under a new electric power reform environment, belonging to the field of power network investment evaluation. Firstly, a comprehensive index system of investment ranking for power grid planning projects is constructed from four indexes: technology, benefit, project importance and project maturity. Then the qualitative indexes are quantified by trapezoidal fuzzy number method, and the quantitative indexes are obtained by calculation. Further, the utility value of each index is obtained accordingto the utility theory. The weight of each index is calculated by using fuzzy analytic hierarchy process. Finally, the utility values and weights are synthesized, and the utility values of each projectare calculated based on the vector distance consolidation rule, according to which the investment of power network planning projects is sorted. Compared with a conventional evaluation method which only considers the investment benefit, the method of the invention can consider the risk preference of the decision maker and improve the risk prevention ability of the power grid company.

Description

technical field [0001] The invention belongs to the field of power grid investment evaluation, and in particular relates to an investment ranking evaluation method of power grid planning projects under the new power reform environment. Background technique [0002] Under the new electricity reform environment, the accounting method of power grid enterprises' income has changed from the traditional "price difference pricing" to "cost plus income", and the profit margins of power grid enterprises have been greatly compressed. In order to obtain a reasonable and optimal investment strategy, power grid companies need to comprehensively consider the construction needs of the power grid and the investment capabilities of the company itself, and make necessary adjustments to the investment in planned projects. [0003] At present, in terms of investment evaluation, power grid enterprises usually focus on considering the investment benefit indicators of the power grid, and generally...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/06393G06Q50/06
Inventor 马倩王昭聪潘学萍
Owner JIANGSU ELECTRIC POWER CO
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