Reactive compensation coordination control method during DC emergency power support process
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- NARI TECH CO LTD
- Publication Date
- 2017-08-18
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Abstract
Description
technical field
[0001] The invention belongs to the technical field of electric power system and automation thereof. More precisely, the invention relates to a reactive power compensation coordination control method in the DC emergency power support process. Background technique
[0002] At present, many regions in my country have formed a grid structure with multiple DC feeds. Due to the large capacity of ultra-high voltage and ultra-high voltage DC transmission, if a DC blocking fault occurs, it will simultaneously cause a large unbalanced power in the power grid at the sending and receiving end, and the impact The transient stability of the system.
[0003] Compared with the emergency control measures of the AC system, the emergency power support (EDCPS) of the non-fault DC system is used to improve the transient stability of the AC system under high-power shock disturbance, the control cost is lower, and the control is faster and more reliable. For the overload capacity ...