Acrel-2000 V8.0光伏电站电力监控系统

4  系统设计参数

       ● 模拟量测量综合误差                                                                 ≤0.2%
       ●电网频率测量误差                                                                     ≤0.01Hz
       ●遥测信息响应时间（从I/O输入端至远动工作站出口）        ≤3s
       ●遥信变化响应时间（从I/O输入端至远动工作站出口）        ≤2s
       ●画面实时数据更新周期（模拟量）                                         ≤3s
       ●画面实时数据更新周期（开关量）                                         ≤2s
       ●控制操作正确率                                                                        100%                                                               

       ●遥测合格率                                                                                 ≥98% 
       ●事故时遥信年正确动作率                                                         ≥99%
       ●系统可用率                                                                                 ≥99.8%
       ●系统平均故障间隔时间（MTBF）                                          ≥20000h
      （其中I/O单元模件MTBF≥50000h）

       ●各工作站CPU平均负荷率：
          正常时（任意30min内）                                                          ≤30%  
          电力系统故障时（10s内）                                                       ≤40%   
       ●自动化系统网络平均负荷率：
          正常时（任意30min内）                                                           ≤20%   
          电力系统故障时（10s内）                                                        ≤40% 
       ●GPS对时精度                                                                               ≤1ms      
       ●历史曲线采样间隔                                                                       1~30min，可调
       ●历史曲线日报，月报储存时间                                                    ≥1年

 5  系统功能　　

 ● 系统运行主画面
　　监控系统提供功能选择画面，并对光伏阵列现场环境进行实时监测与显示，如室外温度值、湿度百分比、光照度及阵列表面温度值等；