Customized Distribution Companies; Distribution companies are becoming more private, the electricity market is becoming more and more competitive. Distribution companies that want to reach more customers have to both improve the quality of their services with value-added services and keep operating costs to a minimum.The rate of missing persons in our country varies between 5% and 75% when considered on a provincial-based.
Customized Distribution Companies Distribution
According to the Energy Market Report issued by the Energy Market Regulatory Board (EPDK) in 2010, during the reform process beginning with Law 4628, the amount of lost energy is not reduced due to increased energy demand.
As of 2002, the main loss-and-leak rate for distribution in Turkey, which was 20.9%, decreased to 14.8% in 2008. However, by 2009, the same rate had risen to 17.7%.
Considering the data for 2009, the highest loss-leakage rate was realized in Tigris Electricity Distribution Co. with 73%, and uludag Electricity Distribution Co. with 5.6% at the lowest. Looking at the big picture, the fact that the distribution privatization tenders were completed in 2010 has shaped the goal in turkey's electricity market to create a fully competitive market based on bilateral agreements.
For this end, the free consumer limit is lowered every year and allows consumers to freely identify their suppliers through bilateral agreement. Privatisation and loss-to-leak rates are expected to fall, productivity growth and market structure will be freed.
Specialised Distribution Companies – Lost Fugitive Problems
Additional revenue from lowering the loss-escapee below the targets approved by the EPDK is left to the distribution company. The investor also has the right to use the additional income in which operating efficiency is increased to exceed epdk-approved targets.
According to the market report that we consider when creating our product idea, the deviation rates of monthly consumption estimates of distribution companies range from -1% to 5%. In this competitive environment, the rising rate of electricity loss and leakage, especially in southeast and eastern Anatolia regions, greatly disrupts the profitability of companies.
There are approximately 30,000,000 electricity subscribers in 20 different electricity distribution companies across the country. According to 2012 data, the amount of electricity consumption in our country reached 230,000 GWh/year with an average annual increase of 4.6% electricity demand.
Unmoniable blind spots on the distribution network where loss and escape are common constitute close to 80% of the total cost of missing leakage.
Electric vehicles will be one of the innovations that will bring additional burden to the grid in the coming years. Over the next 10 years, electric vehicles are expected to spread along with government incentives.
Research shows that without intelligent management charging stations that are effectively monitored, locally penetration of electric vehicles to the grid greatly reduces the operational life of distribution transformers. The health of all components connected to the grid depends on the health of the grid' s own, which requires the removal of regulations and incentives to protect the power grid.
Penetration of such technologies to our current energy grid requires the construction of new transmission and distribution lines. In addition to the network infrastructure to be added, large amounts of investment are being planed to improve the existing network.
This requires optimum determination of the areas to be invested and detailed monitoring of network parameters after improvement.
Ensuring the operational safety of the existing electrical grid required the transition from limited, non-common and expensive parameter tracking mechanisms to cheap, reusable, easily integrated, intelligent tracking systems that can be widely used along the lines.
Maintenance repair costs increase in parallel as network elements age.Periodic maintenance and repair activities are a huge cost for distribution companies and reduce their profitability due to the sale of electricity.
Although replacing all the system equipment here is not economically feasibility, it is seen as impossible with the current investment plans. This requires more effective management of on-hand assets, so that they can be monitored and analyzed more effectively.
This required the development of advanced decision-making mechanisms that can work integrated into the GIS and SCADA modules of electrical equipment and transmission-distribution lines, optimized asset management, fault detection and warning systems, intelligent and autonomous grid management systems, and distribution companies.
GIS and SCADA Modules
Here's how to sort them:
- Reduce capital investment without affecting the life of the equipment: without altering equipment, the integration of intelligent monitoring systems and the modernization of the grid are greatly reduced. Equipment status assessment systems can be used in place of costly maintenance and repair works: Currently, transformer centers, cutters, shunt capacitors are controlled by certain periods and operation health is inspected. As such devices age, maintenance and repair requirements increase. Thanks to real-time inspection of the operational parameters of these devices, only the equipment needed is maintenance, which reduces maintenance and repair costs. Close to 50% of qualified electrical engineers working in distribution companies are about to retire. This fact shows the need for network equipment to be monitored by a smart analysis and reporting software.
- It is ensured that resource management is optimized by prioritizing the equipment that needs to be replaced after economic and technical analysis. Comparing past performance with real-time performance makes it possible to access realistic information about the operational health of the device.
- It is ensured that the equipment is not fully operated and then operated at high capacity to improve its performance.
- The point location of the defective equipment after the failure, the main cause of the failure by notified the technical teams, minimizing the duration of the power outage caused by the fault.
When we look at the infrastructure of all these systems, it will be seen that low cost measurement and communication mechanisms are the most basic necessity. The cost of current sensor technology is the most fundamental restrictive factor for widely monitoring the grid.
Most of the measurement systems used require wiring and allow measurement from central points. Wireless sensor units, on the other hand, are not preferred due to their high costs, cumbersome structures, periodic maintenance and repair requirement, low reliability of the communication network and high battery requirements.
Analysis of Production Transmission Lines
When we examine our current infrastructure, we find that the network lacks intelligent monitoring and analytics software. 40-60% of the production and transmission lines are monitored, but 20% of the data collected is analyzed and made sense.
In addition, subtrans transmission, distribution and sub-distribution units are rarely monitored. The main reason for this deficiency is that the comparison between the costs of electrical equipment and the costs of sensor-monitoring software has non-feasibility consequences.
Failures in production and transmission lines affect larger areas. Therefore, investments made at these points are much larger than their similar in distribution networks.
For example, a 100 MVA transformer costs around 8 million TL, while a 35 KVA transformer costs around 2000 TL. This fact legitimizes detailed monitoring for production and transmission lines and equipment, and causes monitoring of distribution lines to be put in the background.
Due to the cost of sensors, detailed monitoring along the line is not possible even on transmission lines. For this reason, in addition to distribution lines, which are still a uni-light area, the application area of cheap, intelligent monitoring technologies is wide in production and transmission lines.
In addition to the cost, the communication side has a problem in applying intelligent sensor technologies to the field. We meet requirements such as compliance with the security measures of distribution companies and compliance with companies' SCADA, HMI, GIS systems.
Compatibility with SCADA, HMI, GIS
There are two ranges in the volume-cost distribution of sensors. The current market is on the side of high cost and low volume. There is also the search for high volume, low cost and high functionality sensors for use in industrial applications.
Integrating high-cost sensors in the market into large areas is not preferred by distribution companies in terms of depreciation time. The open, high volume here can be shutting down with the development of cheap and intelligent sensors.
On the other hand, recent developments in the low-power electronics market have produced very low-power, cheap and small-sized sensors, also called "System-on-chip".
Thanks to micro-checkers, telecommunication chips and memory modules with high processing capacity, not only routine monitoring operations, but also functions of directing, processing and semansing the collected data can be carried out.
In the past, there have been technical problems caused by wireless sensor networks not being able to communicate reliably and efficiently over long distances. Today, self-relegation mesh networks such as ZigBee Pro, IPV6, high-security communication standards, high-efficiency routing algorithms, low power consumption protocols have matured.
This breakthrough in wireless sensor networks has also encouraged electricity suppliers and distribution companies to integrate these systems into their infrastructure.
Intelligent monitoring, ICT integrated energy applications have taken companies such as Cisco and Motorola to show up in the smart grids market. In addition to well-established companies in the smart networks market, dozens of new ventures have been created in the United States and Europe in the last 5 years.
Continuation of the article will continue to come under the same heading