Method for participating area control error (ACE) control by uniformly modeling wind power plant and thermal power plant

A control method and unified technology, applied in wind power generation, single grid parallel feeding arrangement, etc., can solve problems such as contradictions and achieve the effect of optimal distribution

Active Publication Date: 2012-06-27
NARI TECH CO LTD +2
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Problems solved by technology

[0013] Document 5 analyzes reducing the adverse impact of wind power intermittency on the grid after large-scale wind power access from the perspective of reserved adjustment capacity of wind farms, but requiring wind farms to reser

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[0028]In the present invention, a unified modeling and ACE control method for wind farms and conventional energy sources is disclosed. When establishing the AGC model of the control area, the conventional energy unit and the control object of the wind farm are included at the same time. The control object of the wind farm is modeled according to the similar parameters of the conventional unit, so that the wind farm has the control characteristics similar to the conventional unit, and the conventional thermal power unit and the The control objects of the wind farm are set into different groups, so that the different characteristics of the control objects of the wind farm and the conventional units are reflected in the AGC. After the conventional unit model and the wind farm control model are established, the control objects of the conventional thermal power unit and the wind farm are divided into two groups according to the different power generation types, and different priorit...

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Abstract

The invention discloses a method for participating area control error (ACE) control by uniformly modeling a wind power plant and a thermal power plant. During modeling of control area automatic gain control (AGC), the conventional thermal power plant and a wind power plant control object are involved; the wind power plant control object is similarly modeled according to the characteristics of the conventional thermal power plant; the wind power plant and the thermal power plant are classified into different control sets according to different power generation types; different sequencing strategies can be designed in the sets or among the sets, so that the wind power plant and the conventional plant can jointly participate in the ACE control. The wind power plant control object is controlled in different modes by considering a control area adjustment backup and an ACE adjustment direction, so that integrated coordinative control of the wind power plant and the thermal power plant is finally realized.

Description

technical field [0001] The invention belongs to the field of active power control of electric power systems, and relates to an ACE control method suitable for wind-fire unified modeling after large-scale wind power grid-connected. Background technique [0002] Wind power is currently the most mature technology and the best economic benefit of renewable energy power generation except hydropower. After the grid-connected operation of large-scale wind power, the impact of the randomness, volatility and intermittent characteristics of wind power on the safe and stable operation of the power grid has gradually emerged. With the start of construction of several 10-million-kilowatt-scale wind power bases in China, it is gradually becoming more difficult for the power grid to fully absorb wind power under the premise of ensuring safe and stable operation and active power control performance. high demands. [0003] According to the requirements of the national new energy policy, af...

Claims

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Application Information

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IPC IPC(8): H02J3/46
CPCY02E10/763Y02E10/76
Inventor 滕贤亮张小白吴继平高宗和戴则梅李丹梁吉董昱牛四清孙荣富刘军张涛韦仲康谢旭张哲
Owner NARI TECH CO LTD
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