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Optimal scheduling method for power system to which renewable energy is accessed

A renewable energy and power system technology, applied in wind power generation, electrical components, circuit devices, etc., can solve few problems

Inactive Publication Date: 2016-07-20
CHINA ELECTRIC POWER RES INST +3
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Problems solved by technology

At the same time, there are very few technical literatures on power system flexibility or power system flexibility evaluation, and domestic research on flexibility evaluation methods is still in its infancy.

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  • Optimal scheduling method for power system to which renewable energy is accessed
  • Optimal scheduling method for power system to which renewable energy is accessed
  • Optimal scheduling method for power system to which renewable energy is accessed

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Embodiment Construction

[0056] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.

[0057] Such as figure 1 As shown, the present invention provides a method for optimal dispatching of a power system connected to renewable energy, where the renewable energy is a wind farm; including the following steps:

[0058] Step 1. Collect the power data of the power system in the research area, and perform optimal power flow calculation;

[0059] Step 2. Select the power supply flexibility evaluation time scale parameters;

[0060] Step 3. Establish...

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Abstract

The invention provides an optimal scheduling method for a power system to which renewable energy is accessed. Power data of the power system in a research area are acquired, and optimal power flow calculation is carried out; power supply flexibility evaluation time scale parameters are selected; a power supply flexibility optimal model is built; and according to the result of the optimal power flow calculation and the power supply flexibility optimal model, the power supply-side flexibility optimal result is acquired and outputted. According to the method of the invention, acquisition of the optimal combination of the power system power supply flexibility and the operation cost in various conditions is realized, the optimal process is simple and reliable, the optimal result is accurate and effective, an effective theoretical basis is provided for power system operation and scheduling, and the operation stability of the power system is thus improved.

Description

technical field [0001] The invention relates to a method for optimizing a power system, in particular to a method for optimizing dispatching of a power system connected with renewable energy. Background technique [0002] Under the background of the continuous development of grid intelligence, the access of large-scale renewable energy and distributed power has brought a profound impact on the traditional power system. The proportion of renewable energy generation capacity in the power system is increasing. Although in a sense, the power system has a more sufficient power supply, the uncertainty of renewable energy output will fundamentally change the distribution of power flow. The characteristics make the randomness and unpredictability of the internal power flow and distribution of the system stronger. Although the flexibility of the power system can reflect the necessary power mutation response capability of the system, while satisfying the system flexibility, it is als...

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Application Information

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IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/386H02J3/46H02J2203/20Y02E10/76
Inventor 曾平良周勤勇孙伟卿杨京齐王鹏
Owner CHINA ELECTRIC POWER RES INST
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