The document outlines the objectives and functionalities of an Energy Management System (EMS), emphasizing its role in monitoring, control, and load forecasting within the smart grid. It highlights the integration of subsystems such as real-time SCADA, generation dispatch, and transmission security management, designed to enhance reliability and operational efficiency. Additionally, it discusses economic dispatch and energy scheduling as key components for optimizing cost and ensuring the security of electricity transmission.

1. Energy Management
System

2. INSTRUCTIONS FOR USE
▰ Summary:
▰ The important objectives of Energy Management System (EMS) are to monitor control and load forecasting in
an economical way. With the advancement of computing technology the above tasks have become easier.
Digital control provide superior control due to the implementation of various algorithm.
Key Words:
Economic Load Dispatch, SCADA, Energy Scheduling and Accounting, Transmission Security Management, Smart
Grid.
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3. Contents:
▰ The role of an Energy Management System (EMS) in the overall Smart Grid is an essential requirement. EMS is
importance to the overall reliability and control of efficiency of the electric grid. The main feature of EMS are
monitoring and control, load forecasting, and the economic factors in generation and transmission of
electricity. EMS also takes care to be safe from cyber-attack, security and reliability factors during normal and
dynamic system operations.
▰
▰ To monitor, control, and optimize the operation of geographically dispersed transmission and generation in
real-time are possible with the help of following subsystems like Real-time SCADA Applications, Generation
Dispatch and Control, Energy Scheduling and Accounting and Transmission Security Management.
▰ EMS Vision is also to optimize customers' network efficiency by Improved G&T Operational Security or Service
Reliability, Improving Operating Efficiency, Fuel & O&M Cost Reduction Transmission Loss Reduction etc
▰
▰ EMS Application Description
3

4. Contents:
▰ The role of an Energy Management System (EMS) in the overall Smart Grid is an essential requirement. EMS is
importance to the overall reliability and control of efficiency of the electric grid. The main feature of EMS are
monitoring and control, load forecasting, and the economic factors in generation and transmission of
electricity. EMS also takes care to be safe from cyber-attack, security and reliability factors during normal and
dynamic system operations.
▰
▰ To monitor, control, and optimize the operation of geographically dispersed transmission and generation in
real-time are possible with the help of following subsystems like Real-time SCADA Applications, Generation
Dispatch and Control, Energy Scheduling and Accounting and Transmission Security Management.
▰ EMS Vision is also to optimize customers' network efficiency by Improved G&T Operational Security or Service
Reliability, Improving Operating Efficiency, Fuel & O&M Cost Reduction Transmission Loss Reduction etc
▰
4

5. EMS Application Description
Real-time SCADA Applications – Supervisory control and data acquisition
(SCADA) is a control unit which is used in many modern industries like
energy, manufacturing, power, water transportation, etc. SCADA systems
allow to process, collect and monitor data using various technologies that
at the same time to send instructions to those points that transmit data.
In recent, almost in all essential purpose we observe application of
SCADA, whether it’s waste water treatment plant, supermarkets, industries
or even domestic purpose. SCADA is widely used in power systems. For
Comprehensive operational planning and control, Fuel resource
scheduling, Optimum power flow, Network security, Economic dispatch,
Generation dispatch control etc..
5

6. Generation Dispatch and Control
- Economic Dispatch forms the important analysis functions dealing with
Operation in an EMS. Economic Dispatch (ED) is defined as the process of
allocating generation levels to the generating units, so that the system
load is supplied entirely and most economically. ED controls of the
required output power generation by the unit to supply the required load. It
will also minimize the total cost of fuel. The main aim of economic
dispatch is to suggest the optimal power generation of by the plant units
in supplying the load. The total power generation should be accordingly to
the load demand at the station. If we consider the transmission losses are
negligible the solution procedure will be easier. In reality the transmission
losses are considered. So in real situation the task of economic dispatch
becomes complex
6

7. ▰ Energy Scheduling and Accounting – ESA provides applications to
▰
▰ monitor production costs, interchange scheduling, and demand forecasting.
▰
▰ Transmission Security Management – TSM provides reliability and security of
the transmission network. It analyses the optimum way to perform the task.
▰
▰ “http://www.alstom.com/grid/products-and-services/market-
solutions/Energy-management-systems/”,
▰
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