Energy Storage Systems - Lecture 1 Notes

Staff

  • Instructor: Dr. Ibrahem Mohamed
  • Email: Ibrahem.Mohamed@bue.edu.eg
  • Classroom: B15-Cr-2
  • Class Schedule: Monday (12:00 to 14:00)
  • TA: Eng. Mohamed Abdelaziz
  • Email: mohamed.abdelaziz@bue.edu.eg
  • Classroom: B15-Cr-3 & Computer Lab
  • Class Schedule:
    • Tut: Mech Tuesday (14:00 to 16:00)
    • Tut: Elec Saturday (9:00 to 11:00)

Textbooks

  • Huggins, Robert A (2010). Energy Storage. Springer.
  • Renewable Energy Conversion, Transmission, and Storage by Bent Sørensen, Academic Press (2007).
  • Energy Storage by Yves Brunet, Wiley (2010).

Course Overview

  • Course Description: Energy storage systems, 10 Credit Hours.
  • This module aims to understand advanced energy storage systems and the principle of operation.

Course Assessment

  • Lab Coursework:
    • Lab Reports: 10% (During The semester)
  • Group Project:
    • Report Presentation Assessment: Individually 20% (Week 12)
  • Final Exam:
    • Final Exam (2 Hr): 70%

Course Topics

The following topics will be covered during the semester, with the last week dedicated to project discussions:

  • Basic Concepts of Storage Systems (One Lecture)
  • Mechanical Storage systems (Pumped, Fly Wheels,…) (Two lectures)
  • Capacitors, Super capacitors and Ultra Capacitors (Two Lectures)
  • Fuel cells and Hydrogen (one Lecture)
  • Batteries and Super magnetic Coils (Three lectures)
  • Thermal Storage (One Lecture)

Tentative Topics

The following topics may be covered during the semester:

  • Electric Vehicle (One Lecture)
  • Wind energy (One Lecture)
  • Measurement

BASIC CONCEPTS OF STORAGE SYSTEMS

LECTURE 1

What is an Energy Storage System?

  • Energy storage devices are “charged” when they absorb energy, either directly from renewable generation devices or indirectly from the electricity grid.
  • They “discharge” when they deliver the stored energy back into the grid.
  • Charge and discharge normally require power conversion devices to transform electrical energy (AC or DC) into a different form of electrical, thermal, mechanical, or chemical energy.

Why is Energy Storage Required?

  • ESS can have multiple attractive value functions to power network operation and load balancing, such as:
    • Helping in meeting peak electrical load demands.
    • Providing time-varying energy management.
    • Improving power quality/reliability.
    • Reducing electrical energy import during peak demand periods.
    • Helping with the management of distributed/standby power generation.
    • Meeting remote and vehicle load needs.

Function of Energy Storage System

  • The storage takes an important part in:
    • The electric storage systems for households.
    • The medium-size system for industrial / commercial use.
    • The extra-large system for power plants and substations like Frequency Regulations.

CLASSIFICATION OF ESS SYSTEMS

  • Mechanical Storage Systems

    • Compressed Air Energy Storage (CAES)

  • Electrochemical storage systems

    • Secondary batteries
    • Hydrogen storage and fuel cell

  • Electrical storage systems

    • Capacitor and supercapacitor
    • Superconducting Magnetic Energy Storage (SMES)