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Digital-physical hybrid real-time simulation is considered to be an advanced method for future power system simulation. However, the physical interface will inevitably exist DC component, which causes negative effects on practical applications, such as degradation of simulation performance, damage to physical equipment, etc. A novel DC component elimination control strategy for the digital-physical...
In China, the wind farm is usually with large capacity, centralized, multipoint into the grid and far away from the loading area, which lead to the link between the wind farm and power grid is weak, and the impact of wind power on power system extends from local area to the system stability. Meanwhile, the structure and characteristics of wind turbine generator (WTG) are different from those of conventional...
The excitation control systems of large synchronous generators have a great impact on both the static stability and dynamic stability of power systems. This paper mainly focuses on the influence of elevating excitation system ceiling voltage ratio (ESCVR) towards system's transient stability by simulation works. Examples show that increasing ESCVR of a generator would be able to improve the transient...
Voltage sags have become one of the major power quality concerns in recent years. To decide the suitability of mitigation methods, knowledge is needed about the expected number of sags as a function of special characteristics; this knowledge can be obtained through voltage sag analysis software, which is developed in the paper based on the method of fault position. The software has many functions;...
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