Introduction & Syllabus

1. Unit 1: Introduction
Contents
• Various techniques of utilizing power from
renewable energy sources.
• Concept of nano/micro/mini grid.
• Need of integrating large renewable energy
sources.
• Issues related to integration of large renewable
energy sources.
• Rooftop plants.
• Concept of VPP.
Grid Integrated Renewable Energy Sources(EE703D)

2. Unit 2: Interconnection of alternative energy
sources with the grid
Contents
 Interconnection Technologies-:
1. Synchronous Interconnection
2. Induction Interconnection
3. Inverter Interconnection
 Interconnection Considerations:
 Voltage Regulation
 Integration with Area EPS Grounding Synchronization
 Isolation
 Response to Voltage Disturbance
 Response to Frequency Disturbance
 Disconnection for Faults
 Loss of Synchronism
 Feeder Reclosing Coordination
 Feeder Reclosing Coordination

3. Unit 3:Power quality and management
Contents
THD
Voltage sag
 Voltage swell
Frequency change and its effects
Network voltage management
 Frequency management
System protection
Grid codes

4. Unit 4:Grid stabilization
Contents
Scheduling and dispatch
 Forecasting
Reactive power and voltage control
Frequency control
Operating reserve
 Storage systems
Electric vehicles ancillary services in indian electricity
market (regulatory aspect)
CERC and CEA orders (technical and safety standards)

5. Unit 5:Integration of alternate sources of
energy
Contents
Introduction
Principles of power injection: converting
technologies, power flow; instantaneous
active and reactive power control approach
Integrating multiple renewable energy sources
DC link integration
AC link integration
HFAC link integration
Islanding and interconnection

6. Unit 6: Case studies
Contents
Based on synchronous/induction generator for
peak demand reduction
Grid connected PV system

7. Concept of nano/micro/mini grid.
Main Grid
Mini Grid/Micro Grid/Nano Grid

8. Main Grid

9. Mini /Micro/Nano Grid
1. Small-scale electricity
generators
2. Energy storage systems
3. Interconnected to a distribution
network
4. Operates independently from
the national transmission grid.
5. They range in a size from a
few kilowatts up to 10
megawatts.
Local Power Generation For local Power supplies

10. Mini /Micro/Nano Grid
Consumers.
1. Private households
2. Commercial businesses such as
shops, ice makers and mobile
phone chargers
3. Agricultural loads such as
irrigation pumping and cold
storage
4. Productive loads such as grind
mills and wood or metal working
shops, and
5. Semi-industrials such as telecom
towers, processing plants or
flower farms

11. Components
Distributed Generators
Storage
Controller
Point of Common
coupling
Load/Consumers

12. Mini /Micro/Nano Grid
• Mini-grids developer/operator
• State utilities,
• Private companies/communities
• Non-governmental organisations
• Public-private partnerships.
• The generation and distribution assets may be
developed and managed by different players, both
public and private.
• The mini-grids can run on diesel, renewables (solar pv,
hydro, wind, biomass etc) or as renewable-diesel
hybrids.
• Green mini-grids are those that generate a significant
portion of their power from renewables.

14. Thank you