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A Stochastic Production Simulation Method Adapted to Intermittent Energy Access

A simulation method and intermittent technology, applied in data processing applications, instruments, design optimization/simulation, etc., can solve problems such as failure to accurately reflect power plant operating conditions and output characteristics, loss of timing information, and outdated energy models

Active Publication Date: 2020-06-09
GUANGDONG POWER GRID CORP ZHAOQING POWER SUPPLY BUREAU
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AI Technical Summary

Problems solved by technology

In addition, the conventional energy models used in some production simulation algorithms are relatively outdated, which cannot accurately reflect the current operating conditions and output characteristics of each power station
The equivalent power function method is a typical traditional production simulation algorithm. This algorithm converts the time-series load curve into a continuous load curve, and obtains the power function from the continuous load curve. Finally, it uses the modified power function and convolution algorithm to complete The power generation of the power station is scheduled to work, but the equivalent power function method loses the timing information of the load, and cannot take into account the impact of the unit's operating state switching

Method used

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  • A Stochastic Production Simulation Method Adapted to Intermittent Energy Access
  • A Stochastic Production Simulation Method Adapted to Intermittent Energy Access
  • A Stochastic Production Simulation Method Adapted to Intermittent Energy Access

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no. 1 example

[0127] Such as Figure 1 to Figure 11 Shown is the first embodiment of the stochastic production simulation method adapted to intermittent energy access in the present invention, including the following steps:

[0128] S1. According to the output characteristics and operation conditions of thermal power stations, hydropower stations, peak-shaving power stations, and pumped-storage power stations, establish corresponding thermal power station simulation sub-models, hydropower station simulation sub-models, peak-shaving power station simulation sub-models, and pumped-storage power station simulation sub-models The model, the model establishment method is as follows:

[0129] 1) Thermal power station model establishment

[0130] Such as Figure 4 As shown, based on the actual output characteristics of the thermal power station, the establishment of the economic index μ i And the thermal power model composed of two parts output is as follows:

[0131]

[0132] In the formul...

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Abstract

The invention relates to the technical field of electric system energy planning, in particular to a random production simulation algorithm suitable for intermittent energy access. The random production simulation algorithm suitable for the intermittent energy access comprises the following steps that: establishing the time sequence load model of a system, forming an original load time sequence curve, establishing a conventional energy simulation submodel according to the characteristics and the operation situation of a conventional energy power station, and meanwhile, according to the output situations of a photovoltaic power station and a wind power plant, establishing an equivalent multi-state unit model; adopting the established photovoltaic and wind power equivalent multi-state unit model, correcting an equivalent electric quantity function, and calculating photovoltaic generating capacity and wind power generating capacity; and finally, after all units finish being arranged, calculating system production cost, EENS (Expected Energy Not Supplied) and LOLP (Loss Of Load Probability), and ending a random production operation simulation process which contains intermittent energy.

Description

technical field [0001] The invention relates to the technical field of power system energy planning, and more specifically, relates to a stochastic production simulation algorithm suitable for intermittent energy access to a power grid. Background technique [0002] Facing the depletion of traditional fossil energy and the deterioration of the ecological environment, intermittent energy such as wind power and photovoltaics has been favored by countries all over the world because of its environmental friendliness, low pollution and renewable characteristics. my country is a big energy consumption country. At present, energy consumption is still overly dependent on fossil energy such as coal, oil, and natural gas. Therefore, the development of new energy has become a strategic choice for my country to achieve sustainable energy utilization and energy security. Encouraged and supported by national policies, my country's new energy power generation has developed rapidly in the p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06Q50/06
CPCY02E60/00
Inventor 陈志根何汉文罗捷黄心力陆文升钟杰峰袁康龙陈思思林创廖志伟
Owner GUANGDONG POWER GRID CORP ZHAOQING POWER SUPPLY BUREAU
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