【摘要】 为提高继电保护建模的方便性和准确性,提出了基于高级Petri网的继电保护建模方案。针对继电保护建模的特点,构建了带有混杂特性的有色时间Petri网(H_TCPN),并基于H_TCPN建立了继电保护3层模型,该模型引入顺序变迁、空变迁、时延、时限等概念,丰富了对保护系统混杂性和时间参数的描述。开发了一套组态式继电保护建模仿真系统,利用分层和图形化的方式提高了建模的直观性,并给模型配置了完备的接口程序和开放的设置环境,为继电保护的分析研究提供了一个有效的建模工具和仿真手段。以11型装置距离保护部分为例,介绍了采用该方案建模的详细过程,并利用实际故障录波数据对继电保护模型进行回放检验,证明了基于高级Petri网的继电保护建模方案的可行性和有效性。更多还原

【Abstract】 In order to improve the convenience and accuracy of relay protection modeling,a scheme based on high-level Petri net is introduced.To meet the requirements of protection modeling,a hybrid time colour Petri net(H_TCPN) is established and a three-layer protection model is proposed based on H_TCPN,which uses the concepts of ranking-transformation,void-transformation,time-delay and time-limit to enrich the description of protection system hybridism and time parameters.A hierarchical and visual simulation system of configurable relay protection modeling is developed,which offers an effective modeling tool and simulation means for protection study,with abundant interface programs and open setting environment.Taking Type 11 distance protection as an example,the detailed modeling process is introduced and the model is checked by actual fault recording data,which proves the feasibility and validity of proposed scheme.更多还原