A practical reactive power optimization method of AC/DC power grid incorporated with daily regulation constraints of DC transmission power

作者：Zhang, Yuan^*; Liu, Mingbo; Li, Qing

来源：Power System Technology, 2015, 39(3): 791-796.

DOI：10.13335/j.1000-3673.pst.2015.03.031

• Ac/dc hybrid power grids
• AC/DC hybrid system
• Daily regulations
• Dc transmission
• Reactive power optimization
• Stepwise approximationmethod
• Time interval
• Time section

At present most of reactive power optimization algorithms of AC/DC hybrid system are not enable to consider the restriction of daily DC transmission power regulation times, and it affects the practical application of reactive power optimization. In this paper the solution of reactive power optimization of AC/DC hybrid power grid, in which the restriction of daily DC power regulation times is taken into account, is divided into three stages, namely the continuous reactive power optimization calculation in 96 time sections, stepwiseapproximation of the DC transmission power and continuous reactive power optimization calculation under the determined DC transmission power in each time interval, thus the problem of engineered application of reactive power optimization calculation for AC/DC hybrid power grid is well solved. The test of the proposed method is carried out by system data from 500kV main network frame of South China power grid to validate the reasonableness of the proposed method. Besides, the impacts of the selected value of the different daily maximum regulation times of DC transmission power on reactive power optimization calculation are analyzed.

• 出版日期2015-3-5
• 单位华南理工大学