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Wind power confidence capacity value (CV) evaluation method suitable for use in high-wind-power-penetration-rate power system

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

Active Publication Date: 2018-03-27
STATE GRID ENERGY RES INST +2
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  • Description
  • Claims
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AI Technical Summary

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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  • Wind power confidence capacity value (CV) evaluation method suitable for use in high-wind-power-penetration-rate power system
  • Wind power confidence capacity value (CV) evaluation method suitable for use in high-wind-power-penetration-rate power system
  • Wind power confidence capacity value (CV) evaluation method suitable for use in high-wind-power-penetration-rate power system

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Embodiment Construction

[0043] 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.

[0044]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.

[0045] Such as Figure 1-2 As shown, the present invention provides a wind power confidence capacity assessment method suitable for high wind power penetration rate power system, 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 ...

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Abstract

The invention discloses a wind power confidence capacity value (CV) evaluation method suitable for use in a high-wind-power-penetration-rate power system. The method includes the following steps: S1,selecting a study object, and respectively acquiring a wind power installed-capacity value C<W> of wind turbines, a wind power time-sequence history output per-unit value curve P<W>(t) and a time-sequence load demand curve P<L>(t) of corresponding time; S2, calculating a wind power history output actual-value curve P<WR>(t); S3, calculating a net-load time-sequence curve P<LN>(t); S4, calculatinga net-load duration curve P<LDN>(t); S5, calculating a load duration curve P<LD>(t); S6, calculating effective load carrying capability ELCC<WIND>(t) of wind power; S7, calculating a confidence capacity value CP<WIND> of wind power; and S8, calculating a wind power capacity value confidence level CV<WIND>. The method has the advantages that: a concept is simple and clear, data demand is simple, the wind power confidence capacity value can be obtained simply through processing the history wind power output and the load curves of a study area, the wind power confidence capacity value is evaluated in a case of a high wind power penetration rate, a power system planning scheme is optimized, system running, reliability evaluation and the like are arranged, and the method has better practical guidance significance and application values.

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 Applications(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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