Optimization of power supply systems

Optimization of power supply systems


Modern production's efficiency is largely dependent on a reliable and optimal use of power supply system.

Electricity is a significant part of total consumption modern enterprise's fuel and energy resources. Inefficient use of electric power not only leads to a considerable increase in production costs, but also reduce the equipment's lifetime.

A full analysis of the power supply system lets you select the optimal modes of the equipment's operation, to increase technology process performance and reduce losses in electrical networks.

STC Sigma solves the following problems, in the analysis of the power supply system :

  • Power consumption rational dimensions' definition in production processes and facilities;
  • Determining the requirements for the organization and accounting improvement and control of energy consumption.
  • Energy consumption graphics' optimization
  • Optimal electric equipment's selection
  • Checking the quality of electricity supplied
  • Detection of defects and electrical equipment's problems operation with the thermal imaging inspection
  • Analysis of reactive power flows and their compensation's effectiveness
  • Systems' of electric lighting's external and internal systems analysis
  • Assessment of the actual condition energy consumption, identify the causes and determining the energy losses' values;
  • Identification and estimation of energy savings' reserves;
  • Develop recommendations and technical solutions for saving energy;

The list of basic measurements carried out during the energy audit:

  • Measure and record the basic power quality parameters, in accordance with GOST 13109-97 and EN 50160;
  • Measurement and registration the main parameters in the single-phase and three-phase networks: RMS voltages and currents at the sinusoidal and distorted forms of curves, and the active, reactive and apparent electric power;
  • Measurement of light levels indoors and working surfaces;
  • Measurement and recording of electricity networks' daily schedules.

Measurement and recording of company's electricity networks daily schedules is an important step in power supply and energy consumption's optimization. The findings of actual graphics' instrumental measurements are compared with the calculated graphics. Compare the actual and estimated power consumption graphics company can often identify significant non-rational use of energy and develop organizational measures that do not require large financial costs, to address the identified deviations, and saving electricity.

Here is an example one of the firms surveyed, with power consumption's actual and calculated daily graphics.

Comparative analysis revealed the following main deflection that lead to irrational consumption of electricity (see graphics):

1. At night, the actual power consumption is higher than rated. This suggests that part of the equipment to be switched off at the end of shift continues working, either equipment operating at night are operated in modes other than the calculated values.

2. The actual power consumption is also higher rated at lunchtime. This indicates that at lunch time, not all equipment is turned off.

3. On section marked by number 3, also was registered a deviation from the calculated values. This deviation is associated with untimely disconnection of equipment or process' wrong completion.

Eliminate all the problems described above is possible with the help of organizational activities (instruction of personnel, assigning responsibility, monitoring compliance with the process and stipulated instructions) without additional financial costs and achieve energy savings.