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Solar PV System Design

3 Day Training

Dates: 10 – 12 July | 25 – 27 September 2024
Locations: Johannesburg, South Africa
Platform: Available In-Class / Online

Price: Available on request

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Course Introduction

The Solar PV System Design course focuses on ground-mounted, grid-connected, medium, and large utility scale solar farms connected to medium-voltage hydro circuits. Participants will also learn about overall solar farm configuration including DC and AC design and conceptual design of MV substation and AC collector circuits

Course Objectives

After participating in the Solar PV System Design course, you will be able to:

  • Apply basic principles of solar cell operation and comply with electrical authority and system operator

  • Perform AC and DC system losses, fault analysis at combiner boxes and assess solar farm site

  • Complete design layout and orientation, financial evaluations, and operation of utility scale inverters

  • Transform to AC and connection medium voltage (MV) and high voltage (HV) distribution system

  • Understand safe design (AC arc flash analysis, labelling and interlocking)

Who should attend?

  • Owners

  • Electrical Designers

  • Electrical Engineers

  • Sales Engineers

  • Electricians

  • Project Managers

  • Installation

  • Operating Engineers requiring knowledge of PV Solar Systems.

Technical courses

Training Methodology

Our diverse instructional approaches ensure effective learning:

– Lectures & Presentations: Engage with expert-driven, stimulating content.
– Course Material: Access well-crafted supporting resources.
– Group Work: Collaborate on discussions and case studies for practical insights.
– Workshops & Role-Play: Participate in immersive, scenario-based activities.
– Practical Application: Focus on applying theoretical knowledge in real situations.
– Post-Training Support: Receive extensive support after training for skill implementation.

Training Outline

Welcome, Introduction, Workshop Preview and Learning Outcomes

PV Modules

  • Properties of light and PV modules

  • Basic theory

  • Commercial types and technologies

  • Understanding PV modules’ technical specifications

  • PV module IV curve

String Voltage and Current Sizing

  • Case study 1: VOC and ISC calculations

  • Cable sizing and ampacity

  • Approved cable types and cable sizing

String Combiners and Recombiners

  • Circuit ampacity correction and derating Factors

  • Sizing for combiners and recombiner boxes

  • “Smart” combiner boxes

  • Prewired combiner boxes

  • Fault analysis at combiner boxes

Case study 2: Voc and ISC calculations and sizing of combiner and recombiner boxes

Solar Farm Site Assessment

  • Civil works

  • Environmental aspect

  • Array length

  • Access road

Questions

DAY TWO

DC System Losses

  • PV module losses

  • Environmental losses

  • Cable voltage drop: I2R losses

  • Case study 3: I2R losses calculation

DC to AC Transformation

  • Understanding technical specifications for DC/AC grid tie-in inverters

  • Grid tie-in inverter operation principle

  • Inverter station e-house package

  • Inverter AC short circuit contribution

  • DC/AC ratio design consideration

  • AC transformation for utility grade inverters: Inverter AC output to hydro medium-voltage

  • MV collector system conceptual design

  • MV and HV substation conceptual design

  • Conservation of operational energy (“brown” power)

  • Safety aspects (Arc flash analysis and interlocking)

  • AC system losses (medium-voltage transformers no load and load losses and I2R cable losses)

  • Summary of DC and AC losses

Grounding

  • SANS 10142-1:2017 South African National Standard

  • Grounding potential rise (GPR)

Project Schedule

  • Design/construction sequencing

  • Procurement

  • Limited and Full notice to proceed task orders

  • 3rd party interaction

Testing and Commissioning of PV System

  • Open circuit voltage test

  • IV curve test

  • Thermal image

Regulatory Requirements

  • Electrical Safety Authority

  • Electric System Operator requirements

  • Case study 4: 10 MW design example

Questions and Answers, Feedback on Achievement of Learning Outcomes

    Enquire Now

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