Electronic Load Controller Poster [PDF]

Zitiervorschau

THE ELECTRONIC LOAD CONTROLLER (ELC)

MODEL

Implemented by: YONAH Muwonge, DAVID Maganda Supervised by: Assoc. Prof. Richard Okou, Mr. Maximus Byamukama. (Makerere University) Author : YONAH Muwonge METHODOLOGY

• In all power generating schemes, voltage and frequency

ACTIVITIES

Objective

control and regulation systems/means perform a vital role. Without control, all the power generated goes to the user load. Uncontrolled flow of power can damage both the load and the generators.

Frequency and Voltage variation with ELC connected

Principle of action

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Activities

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Freq / Hz

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Desk research

Research on:

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Analysis of an operational installed

Review of several programming

Frequency Voltage

Writing code for the microcontroller

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Fig. 1: Analysing the ELC installed at SUAM MHP scheme.

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tutorials and books about the



the generation unit are connected directly with no transmission system, therefore, in both systems, the parameters such as voltage and frequency are directly reliant on each other.

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

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microcontrollers

• In Pico and Micro hydro power plants, the user load and

PCB design of the ELC circuit 

• The Electronic Load Controller (ELC) is therefore installed

Simulation of the several circuit

components of the ELC;

to regulate the voltage and frequency of the system. Design and Simulation of the controller circuit

OBJECTIVES of the Project

and how it

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 Programming microcontrollers

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Uganda) , its several key components

Existing ELC designs System analysis of MHP power

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

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

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load, which consequently lead to variations in key parameters such as the voltage, frequency and rotation speed of the generator.

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ELC at Suam MHP scheme (Eastern

• This is due to the unpredictable variations in the user

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V/V

INTRODUCTION

RESULTS

1. Voltage Sensing circuit 2. Triac – dump load circuit

Fig. 2: Design and simulation of electronic circuits.

Frequency and Voltage variation without ELC

3. Power circuit for the microcontroller 56.5

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Using Multism and Proteus software



Building up the electronic load

285 55.5 280 55

275 Frequency

controller circuit based on the design

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Setting up the control panel and

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and switches

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Fig. 3: Testing the ELC prototype.

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to visualise the control mechanism

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Testing the circuit with the test bench

CONCLUSION

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Building and testing the prototype connecting the loads, dump loads, meters



Voltage

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

V / V

Freq / Hz

• To carry out background research and system analysis on Micro-Hydro power. • To carry out research on existing controller designs and their disadvantages. • To carry out research on programming microcontrollers. • To develop with a system model and circuit design for an electronic load controller. • To carry out a simulation of the circuit design. • Building and testing the prototype for illustrative purposes.

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In Pico and Micro hydro-power plants, a simplified microprocessor based ELC can be installed to achieve optimal voltage and frequency regulation. The ELC model is a robust and relatively cheaper to make compared to already existing designs therefore reducing the cost of setting up such small power plants.