Centralized security analysis method, device and system for multi-power plants and multi-component electricity decentralized transactions

Abstract

The invention discloses a centralized safety analysis method, device and system for multi-power plants and multi-component power decentralized transactions, including: power plants rollingly report annual power monthly arrangement plan data and monthly power market transaction plan data; establish a multi-power plant centralized Electricity security analysis and optimization model; based on the data reported by the power plant, the power plant’s multi-component power balance constraint and component power adjustment range constraint model are established; in the objective function, different adjustment costs are set for the power plant’s multi-component power plan; The start-stop status of the time period and the deviation of the multi-component power plan of the power plant; the conclusion of the mid- and long-term power safety analysis is released to the power plant. The present invention provides security analysis services before transactions for medium and long-term physical transactions of power generation enterprises, provides security analysis conclusions and adjustment suggestions for decentralized transactions of multi-component electricity in multiple power plants, provides market transaction references, and guides market members to continuously revise medium and long-term physical transactions. Guarantee the enforceability of various power transactions.

Description

technical field [0001] The invention belongs to the technical field of electric power system dispatching automation, and in particular relates to a centralized security analysis method, device and system for distributed transactions of multi-component electric power of multi-power plants. Background technique [0002] The new round of power system reform has clarified the goal of my country's power market construction: to gradually establish a power market that avoids risks through medium and long-term transactions, discovers prices through the spot market, and has a complete range of transactions and complete functions. At the current stage where the electricity spot market has not yet been established, the main form of electricity trading is medium and long-term electricity trading. The types of transactions in the medium and long-term market have been continuously enriched, and such types as direct electricity transactions and contracted electricity transfer transactions ...

AI Technical Summary

Problems solved by technology

However, security check is a post-event adjustment link for decentralized transaction results to ensure the security of the power grid. The adjustment of transaction power will affect the production plans of market members, and frequent transaction adjustments will cause market fairness.

At the same time, the mid- and long-term power calibration is mainly based on the experience of operators, and the feasibility of transactions is judged by estimating the limit value of cross-section transmission power. This method has been difficult to meet the increasingly complex power grid operation mode.

Furthermore, the completion progress requirements of each component of the power plant trading power are different. When the trading power cannot meet the security constraints of the power grid, the power adjustment of the power plant needs to consider the coordination between multi-component trading power, and there is currently a lack of corresponding supporting technologies

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