CAJ | 학술논문

针对贵广直流输电系统工程,分析换流变抽头定电压控制和定触发角控制策略,研究了两种不同模式下换流阀损耗变化规律.根据IEC 61803标准和高压直流稳态运行规律,建立了高压直流运行工况参数与换流阀损耗直接数学关系,并给出了两种不同抽头控制模式下运行工况参数与换流阀损耗的工程换算用数学公式,为高压直流换流站电压控制模式选择及换流器单元长期安全稳定运行提供了理论基础与依据.
침대귀엄직류수전계통공정,분석환류변추두정전압공제화정촉발각공제책략,연구료량충불동모식하환류벌손모변화규률.근거IEC 61803표준화고압직류은태운행규률,건립료고압직류운행공황삼수여환류벌손모직접수학관계,병급출료량충불동추두공제모식하운행공황삼수여환류벌손모적공정환산용수학공식,위고압직류환류참전압공제모식선택급환류기단원장기안전은정운행제공료이론기출여의거.
Aiming at Gui-Guang DC power transmission system project, this paper analyzed the fixed voltage control of converter transformer tapping and the fixed trigging angle control strategy, studying converter valve losses changing rules under two kinds of different modes. Based on standard IEC61803 and high-voltage DC stable operation rules, this paper established the direct math-ematic relationship of high-voltage DC operation working condition parameters with converter valve losses and gave the engineering converting mathematic formulas of operation working condition parameters and converter valve losses under two kinds of different tapping control modes, to provide theoretical foundation bases for high-voltage DC converting station voltage control mode selection and converter unit long-time safe and stable operation.