利用BEASY边界元数值计算软件对比分析了牺牲阳极与外加电流阴极保护系统中采用不同的阳极边界对计算结果的影响.结果表明,牺牲阳极阴极保护系统中,采用开路电位作为阳极恒电位边界与阳极极化曲线边界相比误差在1％以内；外加电流阴极保护系统中辅助阳极采用恒电流密度边界与阳极极化曲线边界相比误差小于0.1％,在工程应用中,为了便于计算,可采用开路电位作为牺牲阳极的边界条件,采用恒电流密度作为辅助阳极的边界条件.
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