CAJ | 학술논문

在研究虚拟局域网(Virtual Local Area Network,VLAN)对数字化变电站实时性与安全性的影响的基础上,进一步研究了 VLAN 的设置方法,根据通信网络的设备功能划分了11个不同 VLAN,明确其所含设备和作用.同时,以 D2-1型数字化变电站数据通信星型网络为例,利用网络仿真软件 OPNET Modeler 对其进行建模仿真,研究 VLAN 对变电站的影响.仿真结果表明,变电站采用 VLAN 是可行的,并且划分 VLAN 不仅可以抑制广播信息泛滥,还可以减少交换机的负荷和减少网络延时,满足 IEC 61850对变电站内数据传输严格的时间要求,同时变电站安全性也得到提高.
재연구허의국역망(Virtual Local Area Network,VLAN)대수자화변전참실시성여안전성적영향적기출상,진일보연구료 VLAN 적설치방법,근거통신망락적설비공능화분료11개불동 VLAN,명학기소함설비화작용.동시,이 D2-1형수자화변전참수거통신성형망락위례,이용망락방진연건 OPNET Modeler 대기진행건모방진,연구 VLAN 대변전참적영향.방진결과표명,변전참채용 VLAN 시가행적,병차화분 VLAN 불부가이억제엄파신식범람,환가이감소교환궤적부하화감소망락연시,만족 IEC 61850대변전참내수거전수엄격적시간요구,동시변전참안전성야득도제고.
The influence of virtual local area network (VLAN) on real-time performance and security of digital substation is researched firstly, then the configuration method of VLAN is further researched. According to the different properties of the equipments of the communication network in digital substations, there are 11 categories of VLAN in the whole digital substation in which the devices and their functions are mainly introduced. At the same time, the D2-1 type digital substation star communication network is taken for example to be modeled and simulated based on OPNET Modeler to study the influence of VLAN on substation. The simulation results indicate that the broadcast information overflow can be suppressed by dividing VLAN, and the switch's load and the time delay can be reduced, which meets the strict request of real-time performance according to IEC 61850 standard and enhances the security of substation.