CAJ | 학술논문

从大型发电机非线性灭磁电阻均流与均能的要求出发,在氧化锌非线性电阻传统性能指标的基础上,从数理统计的角度提出了一组可反映非线性灭磁电阻组一致性的系数--变异系数和极差系数的概念.针对多组氧化锌非线性电阻实际数据进行了分析计算,以此对非线性电阻组的一致性作出了评价,并指出必须对该组指标同时计算并衡量.最后对变异系数和极差系数的具体数值提出了建议,同时提议将此指标引入非线性灭磁电阻的评价和检验体系中,这对于大型发电机组灭磁系统的安全性评价也具有一定的参考意义.
종대형발전궤비선성멸자전조균류여균능적요구출발,재양화자비선성전조전통성능지표적기출상,종수리통계적각도제출료일조가반영비선성멸자전조조일치성적계수--변이계수화겁차계수적개념.침대다조양화자비선성전조실제수거진행료분석계산,이차대비선성전조조적일치성작출료평개,병지출필수대해조지표동시계산병형량.최후대변이계수화겁차계수적구체수치제출료건의,동시제의장차지표인입비선성멸자전조적평개화검험체계중,저대우대형발전궤조멸자계통적안전성평개야구유일정적삼고의의.
Depending on current sharing and energy sharing requirements of non-linear de-excitation resistance in large generators, based on the traditional characteristics of ZnO non-linear resistance, this paper proposes a group of new coefficients from a given statistical category which can reflect the consistency of non-linear de-excitation resistance group, that is coefficient of variation and coefficient of range. By collection and analysis of non-linear resistance data with the given coefficient, several sets of ZnO resistance are evaluated and analyzed. At last recommendation about coefficient of variation and coefficient of range indicators are proposed. A proposal to include the given coefficient in the system for assessment and examination is advised. It is believed that the method proposed in this paper is valuable safety evaluation of non-linear de-excitation resistance in large generators.