A Coordinated Scheduling Method for Two-Level AGC Units in Network and Province Based on Two-Layer Planning

A technology for coordinating scheduling and generating units, applied in AC network circuits, single-network parallel feeding arrangements, load forecasting in AC networks, etc. Level AGC frequency regulation responsibility, unable to reflect the two-level AGC layered coordination and optimal control of the network and the province, etc.

Active Publication Date: 2020-09-01
CHONGQING UNIV
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Problems solved by technology

[0004] In terms of AGC dynamic optimization strategy, the existing network-provincial two-level AGC coordination method involves centralized planning of network-adjusted AGC units and provincial-level AGC units. The upper and lower limit constraints of tie line power do not distinguish the frequency modulation responsibilities of network-level AGC and provincial-level AGC, nor can they reflect the hierarchical coordination and optimization control of network-level and provincial-level AGCs

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  • A Coordinated Scheduling Method for Two-Level AGC Units in Network and Province Based on Two-Layer Planning
  • A Coordinated Scheduling Method for Two-Level AGC Units in Network and Province Based on Two-Layer Planning
  • A Coordinated Scheduling Method for Two-Level AGC Units in Network and Province Based on Two-Layer Planning

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[0086] The present invention will be further described below in conjunction with the accompanying drawings and embodiments, but it should not be understood that the scope of the subject matter of the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various replacements and changes made according to common technical knowledge and conventional means in this field shall be included in the protection scope of the present invention.

[0087] The specific steps of a coordinated scheduling method for two-level AGC units in the network and province based on two-level planning are as follows:

[0088] (1) Input basic data and initialization

[0089] 1) Enter basic data

[0090] Set the number of directly-regulated AGC power plants invested in the network adjustment in this area to 4, which are distributed in the control areas of province A, province B and province C respectively; 2 each, an...

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Abstract

The invention aims at the defect of an existing network-province two-level automatic generation control (AGC) dynamic optimization dispatching method, and proposes a two-layer planning-based network-province two-level coordinated dispatching method of an AGC machine set. By the two-layer planning-based network-province two-level coordinated dispatching method, coordination among different interest bodies of a network dispatcher and each provincial dispatcher can be achieved, network-province two-level frequency modulation responsibility is determined, safety constraint and assessment index are met, and minimum total cost is simultaneously achieved.

Description

technical field [0001] The invention belongs to the field of frequency modulation and automatic power generation control of interconnected power grids, and in particular relates to a method for coordinating and dispatching two-level AGC units in a network and a province based on two-level planning. Background technique [0002] Automatic Generation Control (AGC) is an important part of the energy management of modern power systems. Its basic task is to maintain the active power balance of the grid by controlling the output of AGC units, thereby ensuring the frequency quality of the system and maintaining the inter-regional energy balance. Electric power exchange plan and facilitate the real-time economic distribution of active power. With the gradual interconnection of ultra-high voltage regional power grids in my country, it is a very realistic topic to study the AGC control strategy of the interconnected grid to ensure the frequency quality of the grid, especially the coor...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/48
CPCH02J3/003H02J3/48H02J2203/20
Inventor 赵霞叶晓斌瞿小斌杨仑颜伟
Owner CHONGQING UNIV
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