Control principles of HVDC grids
In: Van Hertem, D.; Gomis-Bellmunt, O.; Liang, J. (Ed.) (2016). HVDC grids: for offshore and supergrid of the future. Wiley-IEEE Press: Hoboken. ISBN 978-1-118-85915-5. 528 pp. https://dx.doi.org/10.1002/9781119115243, more
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| Author keywords |
constant power control; constant voltage control; high-voltage direct current; power rescheduling; system power flow control; vector control; voltage droop control |
| Authors | | Top |
- Beerten, J., more
- Egea, A.
- Vrana, T.K.
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| Abstract |
The DC node voltage can be influenced by controlling the current/power of the high-voltage direct current (HVDC) converter at that node. This chapter classifies the different node voltage control methods, which have been proposed in the literature in recent years. It introduces three overall converter control strategies namely, constant voltage control, constant power/current control, and voltage droop control. The chapter discusses the control objectives and requirements and the steady-state working conditions of DC node voltage control. It focuses on DC voltage control as a means of active power balancing, similar to primary frequency control in AC systems. The chapter discusses the basic principles of the converter control implementation as well as slower control actions, like power rescheduling. Most control concepts are based on vector control and use an inner current controller in addition to outer power or voltage control loops. |
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