A full-time multi-optimized dispatching method for power grids to improve wind power acceptance capacity

A technology for wind power acceptance and optimal scheduling, applied to AC networks with energy trade/energy transmission authority, wind power generation, electrical components, etc., can solve problems that have not yet been seen

Active Publication Date: 2021-07-13
STATE GRID LIAONING ELECTRIC POWER RES INST +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • A full-time multi-optimized dispatching method for power grids to improve wind power acceptance capacity
  • A full-time multi-optimized dispatching method for power grids to improve wind power acceptance capacity
  • A full-time multi-optimized dispatching method for power grids to improve wind power acceptance capacity

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Embodiment Construction

[0070] specific implementation

[0071] A full-time multi-optimized dispatching method of a power grid that improves the capacity of wind power acceptance. The specific optimal dispatching method is as follows:

[0072] Based on wind power forecasting, load forecasting and abandoned wind volume forecasting, on the premise of maximizing wind power output while taking economical into account, a multi-optimized dispatching model is established to coordinate dispatching of power sources and controllable loads, so that the power grid can accommodate wind power to the greatest extent, among which the dispatched objects Including: thermal power units, hydropower and nuclear power, electric boilers, low grain loads and intermittent loads, the collaborative optimization scheduling model includes:

[0073] Objective function: the minimum amount of abandoned air in the power grid, taking into account economic factors, the objective function is expressed by the following formula:

[007...

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Abstract

The present invention is a full-time multi-optimized dispatching method of a power grid for improving wind power acceptance capacity, which belongs to the field of power system optimization dispatching. Thermal units, pumped storage systems, energy storage devices, electric boilers and intermittent loads, etc.; (2) According to the efficiency of the above-mentioned parts participating in wind power reception and the cooperation or contradiction between each part, formulate a coordinated optimal dispatching plan for the entire power grid Improve wind power acceptance capacity; (3) Due to the influence of seasonal factors, some power sources and load characteristics are quite different, and the capacity of wind power acceptance in different periods is different. Therefore, it is necessary to consider the characteristics of seasonal and environmental factors, and establish multiple optimization of the full-time power grid. Dispatch and accept wind power method; the invention comprehensively and cooperatively mobilizes each subsystem in the power grid to receive wind power, and formulates specific optimal dispatch strategies for different seasonal factors to improve the efficiency of the power grid.

Description

technical field [0001] The invention belongs to the field of optimal dispatching of electric power systems, and in particular relates to a full-time multi-optimized dispatching method of a power grid for improving wind power acceptance capacity. Background technique [0002] As the global environmental problems become increasingly severe, countries around the world pay more and more attention to the development and utilization of renewable energy; vigorously developing and utilizing wind energy is an effective way to achieve sustainable energy development and improve environmental quality. In recent years, my country's wind power installed capacity has grown rapidly; The output power of wind turbines depends on the natural wind speed, which is random, intermittent and uncontrollable. Large-scale wind power grid integration increases the difficulty of dispatching decisions and deteriorates the power quality of local power grids. What is more serious is that when the power grid ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/48H02J3/28H02J3/00
CPCH02J3/386H02J3/008H02J3/28H02J3/381H02J3/48H02J2203/20Y02E10/76Y02E70/30
Inventor 葛维春郭海宇李家珏杨俊友崔嘉王顺江张艳军周桂平李铁葛延峰刘劲松王刚
Owner STATE GRID LIAONING ELECTRIC POWER RES INST
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