Economic quantification model of power distribution network project for power distribution network operation performance improvement degree

A technology of operating performance and quantitative models, applied in marketing, market forecasting, instruments, etc., can solve problems such as the increase and decrease of costs are not clearly reflected, it is difficult to reflect the increase in benefits, and the cost performance of the project is not friendly, so as to reduce the rate of curtailment of light and wind , reduce spare capacity, and reduce cost consumption

CN110570124AInactive Publication Date: 2019-12-13NANYANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-12-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an economic quantitative model for evaluating the improvement degree of a power distribution network project on the operation performance of a power distribution network. The model is used for evaluating the improvement degree of the operation performance of the power distribution network project based on project investment cost so as to help investors to analyze the cost performance of a target power distribution network project and the overall profitability of the society. The model comprises benefit increase brought by power grid performance improvement in four aspects of power distribution network power supply reliability improvement, power grid improvement, power supply capability enhancement and energy utilization enhancement caused by a power distribution network project, and project investment construction cost and later operation and maintenance cost. Economic quantitative analysis is performed on the power grid operation performance improvement broughtby the project based on the economic cost of the distribution network project so that the defect that the actual economic 'benefit' of the distribution network project is difficult to quantify due tothe fact that the performance improvement in the technical aspect of the project and the investment cost in the economic aspect are separately compared by the existing model can be compensated.
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Description

technical field

[0001] The invention relates to the field of evaluating the degree of improvement of distribution network operation performance in the electric power industry, in particular to the quantitative analysis of the specific economic benefits and costs brought about by the distribution network project to improve the distribution network operation performance. Background technique

[0002] The post-project evaluation index system of distribution network projects generally evaluates distribution network projects comprehensively from the aspects of distribution network project implementation, distribution network operation performance after implementation, economic investment costs and benefits, social impact and technological development. Among the various indicators, the core point that investors are most concerned about is the two items of economic investment cost benefit after the implementation of distribution network operation performance improvement machine. Th...

Examples

Embodiment Construction

[0040] An example is used to introduce how to use the above model to evaluate the degree of improvement of the distribution network project to the performance of the distribution network and its economy.

[0041] A power company builds an urban distributed photovoltaic access project at its network source coordination demonstration site, and at the same time performs intelligent updates to the local distribution network. 1) After the distributed photovoltaic site is connected, the power supply capacity of the local distribution network will be enhanced. The unit needs to reduce the input power of the system by 17,600MWh in a year, the system reserve capacity will be reduced by 2.5MVA, and the installed capacity of the spare diesel engine for local users will be reduced by 2MW; 2) Through distribution network intelligence Update, the average fault recovery time was shortened from 1.852s to 1.352s, the fault frequency was reduced from 102 times / year to 57 times / year, and the affe...