Load Dispatch Center (LDC) is the centralized facility for operational coordination and dispatch activities of OETC. The facility consists of main control center at Mawalleh. regional control center at Salalah handles the activities related to Dhofar area. Together, these control centers form vital infrastructure to realize OETC’s objective of ensuring safe, secure, reliable and economic Transmission and Dispatch. LDC is committed to contribute in realizing the vision and mission of OETC.
There are Targets and objectives of Load Dispatch Center to maintain security and quality of electrical supply, including frequency, voltage, supply reliability.
MIA: OETC is sending daily required files via new IT system Market Interface Application “MIA” which used to generate the required data from SCADA system and other sources ,then sending it to MMS at Market Operator side. There are Eleven items need to be sent daily to Market Operators through via this interface software.
UC: Unit Commitment is a dispatch optimization software, considering main technical constrains in the network and generation units into consideration. Due to Oman Spot Market in MIS introduces the certain challenges and obligations to OETC as a system operator those are practically focused on scheduling dispatch and dispatch process. OETC decided to acquire a state of security scheduling of unit commitment suite to supplement the existing facility , improve economy on dispatch and meet spot market obligations.
ERDS: A customized Energy reporting and data sharing software system for the data which is collecting from the AMR system through various communication and various type of meters, so acquired, on a continuous basis, with the Distribution Companies MEDC, MJEC, MZEC, DISC, PDO and GCCIA.
Type of Report:
EMS: Energy Management system EMS used to reduce energy consumption, improve the utilization of the system, increase reliability, predict electrical system performance, and optimize energy usage to reduce cost.
List of the applications:
This section is headed by Control manager. Their main job is focused on real time operations to ensure safe, reliable, secure and economic transmission of power and dispatch of generation. The main activities in Control are
Real-time monitoring and control.
Dispatch of generation from all power stations.
Operations of 400 kV, 220 kV, 132 kV circuits (lines and transformers) and 33 kV incomer CBs.
Ensure strict compliance of safety procedures.
Preparation of various reports related (daily reports & incident reports).
Coordinate commissioning, testing and maintenance programs.
Issue and Cancel safety documents.
Prevent deterioration of the system.
Operational planning section is headed by Operational Planning manager. The section mostly works with advance planning of generation and transmission (usually from two years to one day advance time frame). The section also handles the energy metering function and issue of important operational reports. The main activities of Operational l Planning are
Responsible for Short and medium term Planning – Load-Generation balance and Transmission system status.
Analysis of Economics of System Operations & Dispatch – develop rules of dispatch.
Study system behavior, analyze contingencies and prepare appropriate plans.
Prepare monthly Transmission & Dispatch reports and annual performance reports.
Issue annual maintenance programs (Power + Water).
Planning of Dispatch based on merit order, heat rates, start up costs, incremental costs and optimum generation patterns.
Load forecasting on weekly and annual basis.
System studies – Load flow, Stability, State estimation, (n-1) criteria.
Verification and carrying out switching programs, analysis of operational risk and timely decision making.
Prepare monthly energy transaction statements in the system for all bulk supply points.
Telecom and SCADA section is headed by Telecom Manager. They are responsible for backbone telecommunication network which is used for protection, communication, energy meter reading and SCADA in the system. They are also responsible for the core SCADA infrastructure from remote interface devices to central servers and workstations. This infrastructure is vital for OETC to discharge their operation and dispatch duties. The main activities of this section include
Maintenance of communication network including fiber optic infrastructure and communication interface panels and telephone systems.
Management of remote monitoring devices (RTUs or SCS systems) at substations, including project management and maintenance and configurations.
Specifications, installation, preparation and maintenance of all software and hardware used in (LDC).
Backup of data on the SCADA system.
Maintain of Servers and Workstations in LDC.
Supervision of the operating system for optimal observation and control (SCADA).
The system frequency, measured in Hertz (or Cycles per seconds) is like the pulse of the electrical grid. This can change any time, and we bring you hourly values of the frequency measurement for a day. Our frequency is nominally of 50.0 Hz value, and Gri...
We meet the system demand by dispatching power from many generation sources. In a simplified manner, generation from renewables is cheapest, followed by combined cycle generation. The generation from open cycle units is relatively costlier, and is predomi...