A two-level coordinated control method for wind power generation by sub-dispatching and provincial dispatching
A coordinated control and wind power technology, applied in wind power generation, electrical components, circuit devices, etc., can solve problems such as conflicts, and achieve the effect of ensuring maximum utilization
Active Publication Date: 2018-12-04
NARI TECH CO LTD +2
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Problems solved by technology
This paper analyzes the reduction of the adverse impact of wind power intermittency on the grid from the perspective of wind farm reserved regulation capacity, but requires wind farms to reserve a part of the regulation capacity based on ultra-short-term load forecast results, which is contrary to the current new energy The basic requirements for consuming wind power resources as much as possible in the development policy
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[0046] The present invention will be further described below in conjunction with the accompanying drawings. 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.
[0047] In the present invention, the wind power increase control model of two-level coordination of sub-regulation and provincial regulation is as follows: figure 1 As shown, the control method includes the following steps:
[0048] 1) Establish a main control area in the AGC (Automatic Generation Control, AGC) application of the branch dispatching center (hereinafter referred to as sub-dispatching), implement conventional regional control of the interconnected grid, and use conventional units to implement conventional frequency and tie-line power control. The control objective of the main control area is to maintain the frequency of the power grid within the control range, or to maintain the e...
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The invention discloses a split dispatching-provincial dispatching two-stage coordinating wind power additional tissue control method. A wind power control region is built in a split dispatching AGC application for applying direct control over provincial dispatching wind power inside split dispatching, a virtual wind power unit corresponding to each provincial dispatching is built in the wind power control region, a wind power control region is built in the provincial dispatching AGC, wind power control is applied, after the wind power control function is enabled in each provincial dispatching, the split dispatching AGC calculates a wind power generation index of each provincial dispatching at the time interval of every 5 min at first, and then issues the index to the provincial dispatching at the time interval of every 1 min, and after the provincial dispatching receives the wind power index issued by the split dispatching, a wind power plant is subjected to power control through a wind power control system of the provincial dispatching. On the basis of two-stage coordinating control of split dispatching and provincial dispatching, wind power consumption can be performed within the larger range, and maximum utilization of wind power resources is ensured within the larger range through surplus and deficiency dispatching.
Description
technical field [0001] The invention relates to a two-level coordinated control method for wind power generation, which belongs to the technical field of power system active power control. 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, after wind power is connected to the grid, t...
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IPC IPC(8): H02J3/38H02J3/46
CPCH02J3/386H02J3/46Y02E10/76
Inventor 谢旭吴继平张哲于昌海牛四清吴炳祥罗亚洲滕贤亮郭骏丁恰宁剑徐瑞李洋郭磊王超
Owner NARI TECH CO LTD