AGC system with wind power participating in peak-shaving and frequency modulation and control method

A technology of peak regulation, frequency regulation and control system, which can be used in wind power generation, electrical components, circuit devices, etc., and can solve problems such as contradictions.

Active Publication Date: 2018-05-29
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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

Method used

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  • AGC system with wind power participating in peak-shaving and frequency modulation and control method
  • AGC system with wind power participating in peak-shaving and frequency modulation and control method
  • AGC system with wind power participating in peak-shaving and frequency modulation and control method

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Embodiment 1

[0070] reference figure 1 As shown, the AGC control system for wind power participating in peak and frequency modulation of the present invention is based on a "division-division-provincial" coordinated control architecture. The "division-division-division" coordinated control architecture includes a divisional AGC control terminal and a provincial regulation wind power control terminal. ;

[0071] The AGC control terminal includes a main control module used for regular area control of the interconnected power grid and a wind power control module used for wind farm control;

[0072] The provincial wind power control terminal includes multiple provincial wind power control modules, and each provincial wind power control module is used for wind power control of multiple wind farms in one control area;

[0073] A virtual wind turbine model corresponding to the wind farms in each control area is established in the wind power control module of the AGC control terminal, as the AGC control...

Embodiment 2

[0082] reference figure 2 As shown, the AGC control method for wind power participating in peak and frequency modulation based on the above-mentioned AGC control system for wind power participating in peak and frequency modulation includes:

[0083] S1. Establish a coordinated control system architecture of "division and adjustment-provincial adjustment" to obtain the control parameters of multiple wind farms in the control area corresponding to each provincial wind power control module, and update each virtual wind turbine model according to the obtained control parameters;

[0084] S2: The wind power control module of the sub-tune AGC sends control command data to each corresponding provincial wind power control module through each virtual wind turbine model according to the power generation index tracking mode or the peak shaving and frequency modulation control mode;

[0085] In the power generation indicator tracking mode, the control command data sent by the wind power control ...

Embodiment 3

[0119] Combine figure 1 with figure 2 In the actual implementation of the present invention, a main control area (main control module) is first established in the sub-adjustment AGC application to implement conventional area control of the interconnected power grid, and use conventional units to implement conventional frequency and tie line power control. Another wind power control area (wind power control module) is established in the distribution AGC application. This control area mainly implements indirect control of the provincial wind power in the distribution. In the wind power control area, a virtual wind turbine unit corresponding to each province adjustment is established, and each province adjustment corresponds to a virtual wind turbine unit. A wind power control area is established in the provincial AGC to implement wind power control. The wind power control area of ​​the provincial AGC is controlled by the wind farm.

[0120] The provincial adjustment AGC forms the...

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Abstract

The invention discloses an AGC system with wind power participating in peak-shaving and frequency modulation and a control method. A wind power control module is established at a split dispatching AGCend, and a virtual wind power unit corresponding to each provincial dispatching is established in the wind power control module, so as to implement the indirect control of wind power of each provincial dispatching in an area. A wind power control module is established in provincial dispatching AGC to implement wind farm power control. In the split dispatching AGC, a rolling plan is first made onpower generation indexes of each provincial dispatching wind power, the output stability of the virtual wind power units and the stability of the power generation indexes are detected at the same time, and if the virtual wind power units meet that the output and the power generation indexes are both stable, a peak-shaving and frequency modulation mode can be enabled. In the peak-shaving and frequency modulation mode, ACEs are allocated to each virtual wind power unit according to a given ratio. The virtual wind power units are then added with the ACE allocation amount as the frequency modulation increment on the basis of the power generation indexes to obtain the overall control objective, and the provincial dispatching AGC controls the wind farms in the area according to the total controlobjective.

Description

Technical field [0001] The invention relates to the technical field of power system active power control, in particular to an AGC control system and a control method suitable for large-scale wind power grid connection, based on a two-level dispatch coordination control framework, through participation in grid peak regulation and frequency regulation to achieve additional wind power generation. Background technique [0002] In addition to hydropower, wind power generation is currently the most mature technology and the most economical renewable energy power generation method. After large-scale wind power is connected to the grid, the randomness, volatility and intermittent characteristics of wind power will gradually affect the safe and stable operation of the power grid. With the start of construction of many domestic tens of millions of kilowatts of wind power bases, it is increasingly difficult for the power grid to absorb all wind power under the premise of ensuring safe and s...

Claims

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Application Information

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IPC IPC(8): H02J3/48H02J3/38H02J3/24
CPCH02J3/386H02J3/24H02J3/48H02J2203/20Y02E10/76
Inventor 吴继平宁剑谢旭于昌海牛四清滕贤亮刘俊伟江长明吴炳祥张小白梁明亮涂孟夫环加飞
Owner NARI TECH CO LTD
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