A scheduling method for power system including wind power with energy storage participating in backup

A technology for power system dispatching and energy storage system, applied in wind power generation, energy storage, greenhouse gas reduction, etc., can solve the problem that research ideas are not effective, and achieve the effect of reducing pressure, improving ability, and eliminating wind power.

Active Publication Date: 2017-09-26
RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the situation where the dominance of conventional units is gradually weakening, this research idea will be difficult to work

Method used

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  • A scheduling method for power system including wind power with energy storage participating in backup
  • A scheduling method for power system including wind power with energy storage participating in backup
  • A scheduling method for power system including wind power with energy storage participating in backup

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Embodiment Construction

[0063] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0064] A method for dispatching a power system including wind power in which an energy storage system participates in backup, comprising the following steps:

[0065] 1) Obtain parameters and information related to thermal power units and active loads. The maximum adjustment rate of the thermal power unit is 1% of the capacity of the unit per minute, and the adjustment coefficient of the thermal power unit is 4%, that is, a 4% change in the system frequency causes a 100% change in the output power of the unit. The parameters of the energy storage system are shown in Table 1.

[0066] Table 1 Energy storage system parameters

[0067]

[0068] 2) Generate wind power scenarios based on the statistics of wind power historical forecast errors. The expected value of wind power and load in the forward-looking period is as follows: figure 1 shown.

[00...

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Abstract

The invention discloses a wind-power-contained power system scheduling method with involvement of energy storage for standby. The method comprises the following steps: monitoring a power of a thermal power generating unit, a creep speed, and a power of an active load in real time; carrying out statistics on a wind-power historical prediction error to generate a wind-power scene; according to a constraint condition of the system, establishing a scheduling model and solving the model; and carrying out statistics on a scheduling result. The energy storage system effect is taken into consideration in standby configuration and the energy storage system can change the charging / discharging powers to provide standby application for dealing with a wind-power uncertainty problem, so that an effect of elimination of the wind-power and load uncertainty can be realized during secondary and primary adjustment. Meanwhile, the frequency adjustment effect is considered and thus the pressure of the standby configuration of the conventional unit can be reduced, thereby enhancing the capability of wind-power absorption of the power grid.

Description

technical field [0001] The invention relates to a dispatching method of a power system including wind power in which energy storage participates in backup. Background technique [0002] The ecological environment is deteriorating day by day, threatening the survival of human beings. It is imperative to change energy cleanliness. The power system must develop in the direction of green, low-carbon, environmental protection and energy-saving intelligence. In this context, renewable energy power generation such as wind and solar has developed rapidly, which makes the power system must face the test of strong uncertainty tolerance in the process of operation. [0003] The Chinese patent No. 201110001574.7: "Real-time dispatching method for large power grid to accommodate wind power access" provides a real-time dispatching method for large power grid to accommodate wind power access. The system obtains relevant information such as the unit’s day-ahead plan, real-time output, conn...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/46H02J3/28
CPCY02E10/76Y02E70/30
Inventor 张杰张友泉刘国静孙东磊王明强韩学山刘晓明王艳王飞牟宏汪湲曹相阳王男时洪基于佰建杨思赵凌汉
Owner RES INST OF ECONOMICS & TECH STATE GRID SHANDONG ELECTRIC POWER
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