Title:
POWER GENERATOR, POWER TRANSMISSION LINE AND GENERATOR UNIT AND GRID EARLY WARNING AND EARLY CONTROL METHOD AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2018/205798
Kind Code:
A1
Abstract:
The present invention relates to power generators, a power transmission line and generator unit-grid early warning and early control method and system, particularly, a method for accurately calculating and controlling the dynamic reserve power of the power generators or the power transmission line and a generator unit and grid coordination early warning and early control system for safe and stable operation. The method and system can guide a duty worker in a power plant or a substation to coordinate onto a stronger power grid for the stable operation of the power generators or the power transmission line and to early warn a hidden unstable operation state. The dynamic reserve power of the power generators or the power transmission line is calculated in real time; a generator unit and grid coordination PQ curve range is calculated; and the power plant or the substation is guided to make adjustments safely and stably. Therefore, all automatic stable adjustment devices in the substation are ensured to have in real time an enough accident reserve adjustment space and effective thermal standby, so that an accurate adjustment can be carried out in a system disturbance state, and a failure due to lack of the adjustment space, or protection maloperation or secondary disturbance caused by an over adjustment can be avoided; and the accident reserve power of the whole substation can be ensured to have real-time high performance and realize real-time maximization, and co-management of a generator unit -grid coordination safe and stable operation mechanism by the substation and scheduling can be realized.
Inventors:
WANG XIAOYU (CN)
Application Number:
PCT/CN2018/083199
Publication Date:
November 15, 2018
Filing Date:
April 16, 2018
Export Citation:
Assignee:
WANG XIAOYU (CN)
International Classes:
H02J3/48
Foreign References:
| CN106972551A | 2017-07-21 | |||
| CN101527536A | 2009-09-09 | |||
| CN102364801A | 2012-02-29 | |||
| US5264778A | 1993-11-23 | |||
| US6492801B1 | 2002-12-10 |
Attorney, Agent or Firm:
BEIJING SHUANGSHOU INTELLECTUAL PROPERTY AGENT LTD. (CN)
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