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System reserve capacity decision-making method with consideration of demand response

A technology of reserve capacity and decision-making method, applied in the field of power system planning, can solve problems such as unfavorable power market smooth operation, user loss, etc.

Inactive Publication Date: 2017-06-23
STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST +4
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of social civilization and the power market, excessive use of forced load shedding may cause excessive losses to users, which is obviously not acceptable to power users, and is not conducive to the smooth operation of the power market

Method used

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  • System reserve capacity decision-making method with consideration of demand response
  • System reserve capacity decision-making method with consideration of demand response
  • System reserve capacity decision-making method with consideration of demand response

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Experimental program
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Embodiment Construction

[0064] The present invention will be further described below in conjunction with the accompanying drawings.

[0065] Such as figure 1 As shown, a system reserve capacity decision-making method considering demand response first estimates the user's power shortage cost based on demand elasticity, and then calculates the system reserve cost according to the system reserve cost calculation model. Then, aiming at the lowest sum of user power shortage cost and system backup cost, considering the constraints of system power balance, minimum reserve capacity limit, generator output, upper and lower limits of spinning reserve, and system static security, the optimal reserve of the system is calculated. capacity.

[0066] Specifically include the following steps:

[0067] 1) Based on the price elasticity theory, calculate the user's load reduction cost, that is, the power shortage cost. The price elasticity of demand better reflects the relationship between the user's demand for elec...

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Abstract

The invention discloses a system reserve capacity decision-making method with consideration of a demand response. On the basis of demand elasticity estimation, a user outage cost value of a user is estimated; and a system reserve cost value includes a capacity cost value and a real-time transfer power cost value and a system reserve cost value is estimated according to a capacity cost calculation model and a real-time transfer power cost calculation model. With a minimum sum of a user outage cost value and a system reserve cost value as an objective, a system optimal reserve capacity value is calculated by considering constraint conditions like system power balance, minimum reserve capacity limit, generator set output, upper and lower limits of spinning reserve, and system static safety. According to the system reserve capacity decision-making method, demand-side resources are introduced into standby resources, so that the reserve capacity of the power generation side can be reduced and the system equipment utilization rate can be increased.

Description

technical field [0001] The invention relates to a system reserve capacity decision-making method considering demand response, and belongs to the technical field of power system planning. Background technique [0002] Demand response has been proven to guide users to adjust power consumption patterns through price signals, signing contracts and other measures, thereby playing a role in shifting peaks and filling valleys, increasing load rates, and effectively improving power system operation efficiency and power supply reliability. A strong power system also requires sufficient reserve capacity to maintain the smooth development of power system peak regulation and frequency regulation, and at the same time ensure the safe and stable operation of the system in emergencies. With the deepening of the reform process of the power industry, the introduction of price competition mechanism, the organization of power generation manufacturers to bid for backup services, to obtain the b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00H02J3/46
CPCH02J3/00H02J3/003H02J3/46H02J2203/20
Inventor 崔高颖范洁郑爱霞陈霄易永仙石坤陈璐李德智陈宋宋杨永标宋杰朱庆
Owner STATE GRID JIANGSU ELECTRIC POWER CO ELECTRIC POWER RES INST
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