This document summarizes a student project to design a simple electronic load controller for a micro-hydro power plant using MATLAB. It includes an introduction describing electronic load controllers, a literature review of two relevant papers, identification of the problem of variable voltage and frequency in remote micro-hydro plants, the objectives to design and implement a controller in MATLAB, and a proposed block diagram showing common components like sensors, logic control, switches and dump loads. The presentation was for a seminar on the first phase of the mini-project under the guidance of Professor Sunil S. Rathod.

1. Department of Electrical & Electronics Engineering
[Accredited by NBA, Research Centre of VTU Belgaum]
Basaveshwar Engineering College (Autonomous), Bagalkot
[Govt. Aided Institution, Permanent affiliation to VTU Belgaum]
Presentation of Mini-Project Assessment-1(UEE665P) seminar on
Design of a simple Electronic Load Controller using
MATLAB for Micro-hydro power plant
Project Members
Ajey J Pattar 2BA18EE002
Kiran S Naik 2BA18EE022
Najaraj 2BA18EE029
Ramesh V Hunakunti 2BA18EE039
Under the guidance of
Prof. Sunil. S. Rathod
7/8/2023 1
Project phase -1 Seminar

2. Contents
• Introduction
• literature survey
• Identifying problem
• Objective
• Proposed block diagram
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Project phase -1 Seminar

3. Introduction
• Electronic Load Controller is an electronic device that maintains a
constant electrical load against changing loads in the generating
station.
• Electronic load controller (ELC) is designed to keep voltage and
frequency of generator constant by converting surplus power of
the generator to dummy loads through electronic switches.
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Project phase -1 Seminar

4. [1] N. P. Gyawali, “Universal electronic load controller for microhydro
power plant,” IEEE Int. Conf. Control Autom. ICCA, vol. 2016–July.
• This study tries to address these issues by introducing a novel ELC.
• This paper presents that the system layout and control scheme
are developed in Matlab Simulink environment and different
disturbance are introduced for dynamic response.
Literature survey
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4
Project phase -1 Seminar

5. [2] L. Phunchok, S. Kumar, A.P. Om, P. Rahi “Frequency control of
micro hydro power plant using electronic load controller” J. Eng. Res.
Appl., 2 (4) (2012)
• This paper addresses a comprehensive literature survey on load
frequency control in micro hydro power plant and aimed to present
a design of fuzzy logic based controller that would manage almost
the whole operation of the generating unit.
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Project phase -1 Seminar

6. Identifying problem
• Consumers located in hilly and a few remote areas where it is not
possible to install a receiving substation to receive and distribute
electric power in these remote areas. Therefore micro-hydro power
plant is installed.
• The voltage and frequency of these power plants does not remains
constant because of variation in water flow into turbines and the
changes in consumer load connected to generator.
• This variation in generated voltage and frequency damages
consumers’ electrical appliances connected to the generator.
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7. Objective
• To design an Electronic Load Controller.
• To implement the system in Matlab software.
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8. Proposed Block Diagram
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9. • Four main components are common to most ELC
implementations:
 A sensor (reading voltage, frequency, or current).
 logic to control switching (analog circuit or digital
microcontroller).
 Switch (thyristor, TRIAC, or IGBT).
 Dump load (typically an air or water resistance heater).
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Main Components

10. Thank you
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Project phase -1 Seminar