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The Research of Load Flow Automatically Soft Flip and Characteristics of Regulation of VSC-HVDC System

Author: MaGuoPeng
Tutor: ZhaoChengYong
School: North China Electric Power University (Hebei)
Course: Proceedings of the
Keywords: Voltage source converter HVDC Regulation characteristics Nonlinear Control Trend Soft Flip
CLC: TM721.1
Type: Master's thesis
Year: 2009
Downloads: 110
Quote: 0
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Abstract


VSC-HVDC for the \This paper analyzes the VSC-HVDC supply to the passive network has the same frequency characteristics , by the PWM control of the basic principles of qualitative and quantitative analysis of both active influence on the voltage , qualitative analysis of reactive power on voltage. VSC-HVDC system is used to achieve the interconnected power peaking and emergency power support , its trends need to keep flipping . Based on Lyapunov stability theory of nonlinear control method by VSC-HVDC sending end AC system frequency unilateral active power control , which by the end of the coordinated control system to limit the size of the trend reversal , VSC-HVDC line to achieve automatic soft power flow flip . Papers on the theory of the simulation results show that : VSC-HVDC system is used for peaking power and emergency power support can be made more stable trend reversal , reducing the DC voltage , reactive power and AC voltage shocks.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Transmission and distribution technology > Transmission system > DC system power transmission
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