A transient machine cut control method considering wind power grid-connected wind-fire coordination

A cutting machine, wind power technology, applied in the direction of wind power generation, single network parallel feeding arrangement, etc., to achieve the effect of improving safety and stability, and improving characteristics

Active Publication Date: 2017-03-29
STATE GRID CORP OF CHINA +2
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Problems solved by technology

[0003] Judging from the published research literature, there is currently no such objective function in the world that takes the minimum difference between the maximum bus voltage fluctuation after shutdown and the stable voltage after system recovery as the objective function, and aims at transient stability, shutdown control, power flow limitation, Transient shutdown control method considering wind power grid-connected wind-fire coordination under constraints such as voltage limitation

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  • A transient machine cut control method considering wind power grid-connected wind-fire coordination
  • A transient machine cut control method considering wind power grid-connected wind-fire coordination
  • A transient machine cut control method considering wind power grid-connected wind-fire coordination

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing and specific embodiment:

[0026] Such as figure 2 Shown is the wiring diagram of the bundled delivery system of wind power and thermal power in a certain area. BC Power Plant and BCR Power Plant are thermal power plants with a power generation of 910MW. XY, YM, TF, SL, DB, TB, ZJ, ML, HYP, LS, XAL, LF, TZ, and HT are all wind power plants with a power generation of 1492.1MW. These thermal power plants and wind power plants are connected to the grid through 220kV substations TN, QJ, ZJB, DA, and QA, and then boosted to 500kV to connect to 500kV TS substations. and 500kV SY variable. The output power of the wind power and thermal power bundling delivery system is mainly sent to the SY substation through the double-circuit 500kV line between the TS substation and the SY substation, and then sent to the main grid through the double-circuit 500kV line connected between the SY su...

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Abstract

The invention relates to a transient generator tripping control method considering wind power integration and wind-thermal coordination and belongs to the technical field of electric power system operation control. The method mainly comprises the step that generator tripping proportions of wind power to thermal power are calculated on the basis of a transient generator tripping model considering wind power integration and wind-thermal coordination based on an improved branch circuit transient energy function and PSASP software. By the adoption of the transient generator tripping control method considering wind power integration and wind-thermal coordination, transient stability calculation can be conducted on major failures of a wind-thermal power bundling transmitting system in different modes, and the optimal generator tripping proportion of a thermal power generator unit to a wind power generator unit is selected; on the premise of ensuring stability of system recovery, the characteristics of the system recovery process are improved, safety and stability of system operation are improved, a control basis is provided for transient stability control generator tripping measures of the wind-thermal power bundling transmitting system, convenience is provided for actual power grid dispatching and operating, and the method has practical significance.

Description

technical field [0001] The invention belongs to the technical field of power system operation control, and more precisely, the invention relates to a control method for transient machine cut-off considering wind power grid-connected wind-fire coordination. Background technique [0002] Jilin Province is rich in wind energy resources with good quality, mainly distributed in Baicheng, Songyuan, and Siping areas in the west of Jilin Province and Yanbian area in the east. It is one of the eight national-level 10 million-kilowatt wind power bases in China. The Songyuan and Baicheng areas have very rich wind energy resources. The area is affected by the cold wave in Siberia and controlled by the high-pressure airflow in Mongolia. The wind energy reserves are abundant, the prevailing wind direction is stable, and the quality of the wind is good without destructive wind speed, which provides abundant resources for the construction of wind farms. a resource. The power grid in Songyu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/38H02J3/46
CPCY02E10/76
Inventor 范国英郭雷王建勋王春华高培生孙福寿刘家岩姜旭黄民翔杨濛濛
Owner STATE GRID CORP OF CHINA
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