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A Wind Power Confidence Capacity Assessment Method for High Wind Power Penetration Power Systems

A technology of confidence capacity and power system, applied in the direction of system integration technology, information technology support system, data processing application, etc., can solve the problems of calculation difficulty, complex data type and high demand for data volume, and achieve good practical guiding significance and The effect of application value, simple data requirements, and simple and clear concepts

Active Publication Date: 2021-09-28
STATE GRID ENERGY RES INST +2
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  • Claims
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Problems solved by technology

[0006] At present, the existing wind power confidence capacity calculation method usually requires various types of installed capacity data and historical output data of the entire power system for calculation, and the calculation difficulty, complexity and demand for data types and data volume are very high

Method used

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  • A Wind Power Confidence Capacity Assessment Method for High Wind Power Penetration Power Systems
  • A Wind Power Confidence Capacity Assessment Method for High Wind Power Penetration Power Systems
  • A Wind Power Confidence Capacity Assessment Method for High Wind Power Penetration Power Systems

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Embodiment Construction

[0045] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0046] The confidence capacity of wind power is defined as the capacity of conventional units that can be replaced by wind power under the condition that the reliability of system power supply remains unchanged. Confidence is the ratio of the confidence capacity to the total installed capacity of wind power.

[0047] like Figure 1-2 As shown, the present invention provides a wind power confidence capacity assessment method suitable for high wind power penetration rate power systems, the method is based on the equivalent load carrying capacity (Effective Load CarryingCapabilityduring Peak-load-period, ELCCP) of the peak load period to evaluate wind power The confidence c...

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Abstract

A wind power confidence capacity assessment method suitable for high wind power penetration rate power systems, the method includes the following steps: S1. Select research objects: obtain the wind power installed capacity C of wind turbines respectively W , wind power time series history per unit value curve P W (t) and the time-series load demand curve P at the corresponding moment L (t); S2. Calculate the famous value curve P of wind power historical output WR (t); S3. Calculate the net load time series curve P LN (t); S4. Calculating the net load continuous curve P LDN (t); S5. Calculate the load duration curve P LD (t); S6. Calculate wind power effective load capacity ELCC WIND (t); S7. Calculate the confidence capacity CP of wind power WIND ; S8. Calculate wind power capacity confidence CV WIND . The invention can obtain the wind power confidence capacity by processing the historical wind power output and load curves in the research area, and has good advantages in evaluating the wind power confidence capacity in the case of high wind power penetration rate, optimizing the power system planning scheme, arranging system operation, and reliability evaluation. Practical guiding significance and application value.

Description

technical field [0001] The invention belongs to the field of power simulation analysis, and in particular relates to a wind power confidence capacity evaluation method suitable for high wind power penetration rate power systems. Background technique [0002] Wind power generation is currently one of the power generation methods with the most mature technology, the most large-scale development conditions and the most commercial development prospects in energy power generation. With the increasing proportion of wind power in the power structure, its impact on the safe and stable operation of the power system is becoming more and more significant. At present, the value of wind power is usually considered more in planning than its capacity value (that is, wind power participates in power balance but not power balance in planning), but in the case of high wind power penetration, ignoring its capacity value will lead to waste of resources And excessive investment is not conducive...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q50/06Y02E40/70Y04S10/50
Inventor 元博徐志成伍声宇张富强王耀华冯君淑张晋芳郑宽焦冰琦闫晓卿葛延峰张涛王江波白宏坤
Owner STATE GRID ENERGY RES INST
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