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Wind-photovoltaic-thermal-bundled DC transmission AGC control method

A control method and technology of wind and rain, applied in the direction of photovoltaic power generation, AC network circuit, reducing/preventing power oscillation, etc., to achieve the effect of reducing impact and stabilizing power

Active Publication Date: 2018-04-27
NARI TECH CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The active power control technology of the grid and wind farms after wind power access is disclosed from different aspects such as grid resource coordination, resource allocation optimization, and grid security. However, it does not analyze the coordination of wind power and conventional energy from the perspective of real-time control and AGC. Discussion on wind farm active power control technology

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Embodiment Construction

[0034] The present invention will be further described below. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0035] Wind power in the present invention refers to wind power, photovoltaic power and thermal power. AGC (Automatic Generation Control) is automatic generation control.

[0036] The AGC control method of wind and fire bundled direct current delivery of the present invention comprises the following steps:

[0037] 1) Establish a main control area in the AGC application of the provincial dispatching center (hereinafter referred to as provincial dispatching) to implement conventional regional control of the interconnected grid. The control goal of the main control area is to maintain the frequency of the power grid within the control range, or to maintain the local The exchange power between the control area and other adjacent control area...

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Abstract

The invention discloses a wind-photovoltaic-thermal-bundled DC transmission AGC control method. Firstly a master control area and a wind-photovoltaic-thermal-bundled control area are established in aprovincial power grid, wherein the control boundary of the wind-photovoltaic-thermal-bundled control area is a thermal total transmission connection line, a DC transmission connection line and a new energy transmission convergence line. If the wind-photovoltaic-thermal-bundled control area has an overall power generation plan, the wind-photovoltaic-thermal-bundled control area uses the FTC mode tocontrol. If there is no overall power generation plan, the wind-photovoltaic-thermal-bundled control area can use the internal fluctuation suppression and auxiliary main network frequency connectionline power control mode so that waxing and waning of the wind-photovoltaic-thermal output can be realized, the power of the bundled transmission area is ensured to be stable and the influence of new energy fluctuation of the wind-photovoltaic-thermal-bundled transmission area on the overall power grid can be reduced.

Description

technical field [0001] The invention relates to an AGC control method for bundled direct current transmission of wind, solar and thermal power, and belongs to the technical field of active power control of electric power systems. Background technique [0002] With the centralized grid connection of large-scale new energy, in order to further enhance the ability of new energy transmission and increase the level of new energy consumption, some areas have adopted the construction of cross-regional and cross-provincial UHV DC projects, through the power of wind power, photovoltaic and thermal power. After bundling and then direct current delivery, the cross-regional and large-scale consumption of new energy is effectively realized. In order to ensure the stable output power of UHV DC and minimize the power exchange from the AC system of the interconnected grid, it is necessary to realize the support of active closed-loop automatic control technology for bundling wind and power. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/48H02J3/38H02J3/24
CPCH02J3/24H02J3/382H02J3/48H02J2203/20Y02E10/56
Inventor 宁剑吴继平滕贤亮江长明王斌牛四清郑晓雨谢旭张哲王茂海于昌海杨健张小白
Owner NARI TECH CO LTD
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