2008年，自己做的电动机保护程序AD7656.c，可以测量负序电流和零序电流-In 2008, own motor saver AD7656.c negative sequence current and zero sequence current can be measured

零序电流保护运行风险评估模型，指出了实时运行状态对保护的可靠性有着重要的影响。(Risk assessment model of zero sequence current protection operation)