美丽山特高压直流Ⅱ期工程附加控制功能设计

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Abstract Additional control function is an important function of HVDC, which is beneficial to the stable operation of AC system. Different HVDC projects connect to different AC systems, and the design of additional control function is not the same. According to the characteristics of the AC power grid at both ends of Belo Monte Ⅱ UHVDC project in Brazil, the design of additional control functions is carried out: firstly, the principle and characteristics of two frequency controllers are introduced, and the selection and parameter design of frequency controllers under the operation mode of inter-network and isolation network are carried out. Through the frequency control function of Belo Monte Ⅱ, when the power grid is disturbed, it is conducive to the stability of power grid frequency. Secondly, the principle of power oscillation damping control and the method of controller design are introduced. The controller design and parameter design are carried out, and the simulation test on RTDS is carried out to verify the damping effect. Finally, when the AC power grid fails, it needs to emergency runup / runback Belo Monte Ⅱ UHVDC, and develops the design of interface function with safety and stability control. The on-site operation and test show that the above-mentioned design is effective and has certain reference significance for the design of additional control functions of other HVDC projects.

Key words： ultra high-voltage direct current (UHVDC) additional control function frequency control power oscillation damping control

Received: 18 December 2019

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	Articles by authors
	Li Lin
	Lyu Yanbei
	Gong Fei
	Wang Yongping

Cite this article:

Li Lin,Lyu Yanbei,Gong Fei等. Design of additional control function for Belo Monte Ⅱ UHVDC[J]. Electrical Engineering, 2020, 21(6): 56-62.

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http://dqjs.cesmedia.cn/EN/Y2020/V21/I6/56

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