Determination method of maintenance reserve capacity in power system planning including wind power

A technology of reserve capacity and power system, which is applied in the field of power system and can solve the problems of uncertain maintenance demand of power system maintenance reserve capacity and so on.

Active Publication Date: 2016-04-27
XI AN JIAOTONG UNIV
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method for determining the maintenance reserve capacity in the power system planning including wind power, to solve the problem of how to determine the maintenance reserve capacity of the power system under the condition of uncertain maintenance demand and wind power connection

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  • Determination method of maintenance reserve capacity in power system planning including wind power
  • Determination method of maintenance reserve capacity in power system planning including wind power
  • Determination method of maintenance reserve capacity in power system planning including wind power

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Embodiment Construction

[0064] The present invention proposes a method for determining the spare capacity for maintenance in power system planning including wind power. The flow chart is as follows figure 1 shown.

[0065] In the power system including wind power in this embodiment, there are 40 thermal power plants, 15 gas power plants and 5 hydropower plants, a total of 180 generating units, and two wind farms with an installed capacity of 3000MW respectively. The overhaul period of this embodiment is 36 ten days, and the ten days load curve is as follows figure 2 As shown in , it can be seen that the installed capacity control period of the system is the 22nd ten days.

[0066] According to the "Guidelines for Maintenance Equipment of Power Generation Enterprises" and the specific conditions of the units, the maintenance time of different types of units is obtained, as shown in Table 1. In view of the fact that the generating units in this embodiment are mainly thermal power units, the thermal...

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Abstract

The invention discloses a method for determining the repair reserve capacity in a plan of an electric power system containing wind power. According to the method, the influence of the wind power and indetermination of repair demands on the repair reserve capacity is considered, and the repair reserve capacity determining problem caused by the wind power and indetermination of the repair demands in the plan of the electric power system is solved; wind power plant wind speed relevancy is processed through the Cholesky decomposition method, the capacity value of wind power is considered, wind power output is equivalent to a negative load, and according to a proposed index, namely, the probability that wind power causes insufficiency of the repair reserve capacity, the repair reserve capacity of the electric power system containing wind power is determined; with respect to the indetermination of the repair demands of units, it is considered that the units of the same type have the identical repair demands, so that the indetermination of the repair demands is processed only considering the repair demands of the units of different types. By the adoption of the method for determining the repair reserve capacity in the plan of the electric power system containing wind power, a foundation is laid for power source planning, grid planning and balance analysis of electric power and energy of the system.

Description

technical field [0001] The invention relates to the technical field of electric power systems, in particular to a method for determining maintenance reserve capacity in power system planning including wind power. Background technique [0002] In order to ensure the normal operation of the units in the power system, the units in the system should be checked and repaired regularly. Maintenance is planned, and it can be arranged as far as possible during the period when the electricity load is low. However, if the maintenance of all units cannot be arranged when the load is low, it is necessary to set up a special reserve capacity, which is called the maintenance reserve capacity. In the field of power system planning, especially in the fields of power supply planning, grid planning and energy economic analysis, the evaluation of power system maintenance reserve capacity is very important. At present, when it comes to the maintenance of generator sets, the main solution is to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
Inventor 别朝红张永凯金小明李蓉蓉
Owner XI AN JIAOTONG UNIV
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