Control of Operation Modes Efficiency of Complex Technological Facilities Based on the Energy Efficiency Monitoring

The article proposes an approach to the organization of control the operation mode efficiency of the technological facility, which is based on simultaneous control of the power consumption efficiency and technological parameters to identify the causes of inefficient operation. The procedure of comparison the actual power consumption with its planned value has been used to control the power consumption efficiency. Shewhart control charts have been applied to control the technological parameters. The standards for the controlled parameters have been formed based on the monitoring system data in order to take into consideration the facility operation conditions. The confidence interval to the expected value of the power consumption, which is determined based on the power consumption mathematical model, has been selected as the power consumption standard. The power consumption standard is determined for every day, taking into consideration the actual values of the technological parameters. Control limits of the Shewhart control charts are standards for technological parameters. The proposed control procedure is based on taking into consideration the actual operation modes of the facility, which ensures the correct determination of the control limits and the correct control results, and provides for the possibility of adjusting the standards of the controlled parameters. Joint analysis of control charts allows determining the periods of time when the operation mode of the technological facility was ineffective in terms of power consumption, identifying the reasons that led to it.