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Storage-transmission combined planning method for coping with insufficient peak regulation and power transmission congestion

An insufficient and peak-shaving technology, applied in the field of high-proportion renewable energy power system planning, which can solve problems such as low utilization rate of energy storage systems

Pending Publication Date: 2021-04-13
NORTHEAST DIANLI UNIVERSITY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These two methods separate the power supply side from the grid side. Although the problem of wind curtailment is solved to a certain extent, it is easy to cause low utilization of the energy storage system and invalid investment on the power supply side or grid side.

Method used

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  • Storage-transmission combined planning method for coping with insufficient peak regulation and power transmission congestion
  • Storage-transmission combined planning method for coping with insufficient peak regulation and power transmission congestion
  • Storage-transmission combined planning method for coping with insufficient peak regulation and power transmission congestion

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Embodiment Construction

[0073] Exemplary embodiments of the present invention will now be described with reference to the drawings; however, the present invention may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of exhaustively and completely disclosing the present invention. invention and fully convey the scope of the invention to those skilled in the art. The terms used in the exemplary embodiments shown in the drawings do not limit the present invention. In the figures, the same units / elements are given the same reference numerals.

[0074] Unless otherwise specified, the terms (including scientific and technical terms) used herein have the commonly understood meanings to those skilled in the art. In addition, it can be understood that terms defined by commonly used dictionaries should be understood to have consistent meanings in the context of their related fields, and should not be understood as idealized or over...

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Abstract

The invention provides a storage-transmission combined planning method for coping with insufficient peak regulation and power transmission congestion. The method comprises the following steps: inputting wind power data, load data, a conventional power supply structure and a current power grid topology of a planning target year; according to the wind power data, the load data, the conventional power supply structure and the current power grid topology, respectively obtaining wind curtailment power caused by insufficient peak regulation depth and wind curtailment power caused by power transmission blockage; and coupling the wind curtailment power caused by the insufficient peak regulation depth with the wind curtailment power caused by the power transmission blockage to obtain the total wind curtailment power of the system. By utilizing a pre-constructed storage and transmission joint optimization model for coping with insufficient peak regulation and power transmission blockage, coordinated optimization between configuration energy storage and extension of a power transmission line is realized, so that an optimal planning scheme for energy storage configuration and power transmission network extension is obtained, and the problem of wind curtailment is thoroughly solved from two aspects of insufficient peak regulation and power transmission blockage.

Description

technical field [0001] The invention relates to the field of high-proportion renewable energy power system planning. In order to solve the problem of wind abandonment after large-scale wind power is connected to the grid, a joint optimization method of energy storage and transmission network is proposed to deal with insufficient peak regulation of power supply and blockage of transmission channels. Background technique [0002] Vigorously developing wind power is a major measure to promote low-carbon energy transformation and address climate change. In recent years, wind power has developed rapidly. Although the installed capacity of wind power has developed rapidly and has broad prospects, the problem of wind curtailment cannot be underestimated. The wind curtailment rate in some areas is as high as 14%, which seriously hinders the healthy development of wind power. [0003] There are many reasons for the curtailment of wind power. The main reasons include two aspects: 1) T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/28H02J3/38
CPCH02J3/00H02J3/008H02J3/28H02J3/381H02J2203/10H02J2203/20H02J2300/28Y02E10/76Y02E70/30
Inventor 杨修宇穆钢柴国峰严干贵安军伍声宇焦冰琦
Owner NORTHEAST DIANLI UNIVERSITY
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