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Environmental economy power generation dispatching method

A scheduling method and economical technology, applied in data processing applications, forecasting, instruments, etc., can solve problems such as reducing system capacity and restricting the ability of system backup

Inactive Publication Date: 2014-08-27
WUHAN UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the integration of wind power into the grid, the required system reserve capacity increases, and the above method of dispatching hydropower will restrict the ability of hydropower to provide system reserve, thereby reducing the capacity that the system can incorporate into wind power

Method used

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Embodiment Construction

[0069] The scheduling model proposed by the present invention includes two objective functions: 1. On the premise that the wind power is fully connected to the grid, by taking the hydropower deviation from the hydropower daily predicted output value as a penalty item, combined with the thermal power generation cost and the environmental pollution caused by waste gas Together they constitute the objective function of system power generation environmental cost. 2. Construct the objective function of unit output stability based on the output fluctuations of thermal power and hydropower units, and establish a wind-fire-water coordinated dispatch model considering the unit output stability. The construction of the environmental cost objective function aims to minimize the cost of thermal power generation and the lowest waste discharge, and at the same time make the power generation of hydropower in the future one-day dispatch plan as close as possible to the scheduled output of the ...

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Abstract

The invention provides an environmental economy power generation dispatching method. The environmental economy power generation dispatching method comprises the steps of establishing a multi-target scheduling model taking power output stability of a thermal power generating unit and a hydroelectric generating set into consideration, wherein the multi-target scheduling model comprises an objective function and a constraint condition; inputting preset a real-time system expected loss of a load; solving the Pareto optimality leading edge of environmental economy scheduling based on the multi-target particle swarm optimization to obtain the historical Pareto optimality solution set; calculating the satisfaction degree of Pareto optimality solutions and selecting the optimality solution with the highest satisfaction degree as the needed environmental economy power generation dispatching result. The environmental economy power generation dispatching method can provide a wind-fire-water coordinated optimized scheme containing operational risks, and is reasonable and practical.

Description

technical field [0001] The invention belongs to the technical field of multi-objective optimal dispatching of power systems, and in particular relates to an environment-friendly and economical power generation dispatching method based on a multi-objective particle swarm algorithm. Background technique [0002] Wind power grid connection is of great significance for power grid energy saving and emission reduction, but wind power output has random fluctuations, and existing output prediction methods have large prediction errors, which brings severe challenges to power system dispatching. In order to adapt to the fluctuation of wind power output, conventional thermal power units or hydroelectric units need to adjust the unit output frequently, which will shorten the service life of the unit, increase the workload of dispatchers, and affect the safety of the system. Therefore, it is particularly important to formulate a reasonable scheduling plan that considers the respective ch...

Claims

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Application Information

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IPC IPC(8): H02J3/38H02J3/46G06Q10/04G06Q50/06
Inventor 胡志坚贺建波
Owner WUHAN UNIV
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