Programmable Loads

Learning Module

Three/Single Phase Programmable RLC Load

The Programmable Three-Phase/Single Phase RLC Load System is a hardware-based programmable load bank that uses real resistors, inductors, and capacitors to simulate a wide range of electrical loading scenarios. Controlled via a LabVIEW-based graphical user interface (GUI), the system allows users to independently set resistive (R), inductive (L), and capacitive (C) load levels by entering reference power values, offering precise and dynamic control of active and reactive loads. With built-in power measurement, harmonic analysis, and multi-point communication this platform is ideal for power systems education, energy audits, and three-phase power quality research.

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Learning Module

Programmable DC Load

The Programmable DC Load System is a real, hardware-based resistive load bank that allows precise, software-controlled application of electrical loads to DC power sources such as fuel cells, batteries, solar PV modules, and DC power supplies. Unlike electronic or transistor-based loads, this system uses actual resistors as load elements, making it a perfect match for scenarios where users need to observe true thermal, electrical, and physical behavior under resistive loading conditions. Featuring a LabVIEW-based graphical user interface (GUI), the system offers both manual toggle and automated control modes, real-time parameter monitoring, data logging, and live graph plotting. It's a highly effective tool for engineering education, renewable energy research, and system testing.

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Why Choose the Programmable Loads

  • Essential tool for modern power and energy laboratories:The Programmable Loads Lab is a critical test and learning platform for understanding how electrical sources behave under controlled loading conditions. It allows students and researchers to apply repeatable, programmable loads to power systems and observe real-time electrical performance.
  • Supports renewable, power electronics, and microgrid labs: Programmable loads are indispensable when testing solar PV systems, wind turbines, fuel cells, batteries, inverters, EV chargers, and microgrids. This lab complements and strengthens experiments across multiple renewable and smart-grid platforms.
  • Realistic load emulation for industry-relevant testing: The system can emulate resistive, inductive, capacitive, and dynamic load profiles—helping learners study how real-world loads impact voltage stability, current draw, power quality, and system efficiency.
  • Fully programmable and repeatable experiments: Unlike fixed load banks, programmable loads allow precise control over voltage, current, power, and load profiles. This enables repeatable experiments, accurate performance comparison, and research-grade validation.
  • Ideal for teaching, testing, and research: The lab supports undergraduate teaching, postgraduate research, product validation, and algorithm testing. It is widely used in power electronics labs, EV research, inverter testing, and energy management studies.
  • Safe, compact, and lab-friendly design: Designed for academic environments, the system includes built-in protections, intuitive interfaces, and safe operating ranges—making it suitable for frequent student use.

Real world impact across Campuses

Recent Installations

Ecosense installs Remotely Operated and Controlled AC/DC Hybrid Microgrid at NIT Kurukshetra.

Ecosense installs Remotely Operated and Controlled AC/DC Hybrid Microgrid at NIT Kurukshetra.

September 21, 2022

Department of Electrical Engineering, NIT Kurukshetra welcomed Remotely Operated and Controlled AC/DC Hybrid Microgrid supplied and commissioned by Ecosense.
Ecosense installed Hybrid AC/DC Microgrid at NIT Delhi

Ecosense installed Hybrid AC/DC Microgrid at NIT Delhi

June 5, 2023

Ecosense's installation of a Microgrid system at the Department of Electronics and Electrical Engineering, NIT Delhi showcases their commitment to...
Ecosense installed Hybrid AC/DC Microgrid Lab at SEE Department, IIT Kanpur

Ecosense installed Hybrid AC/DC Microgrid Lab at SEE Department, IIT Kanpur

July 2, 2024

Recognizing the critical need for sustainable energy solutions to combat environmental issues and depleting fossil fuels, IIT Kanpur has set...

How the Ecosense Programmable Loads Works

The Ecosense Programmable Loads Lab is designed to apply controlled electrical loading to a wide range of power sources and systems. Instead of using fixed resistors or passive load banks, this lab enables users to dynamically define how much current, voltage, or power a system must deliver—closely replicating real operating conditions.

At its core, the lab acts as an intelligent electronic load, capable of operating in multiple modes depending on the learning or research objective.

1. Load Connection to Power Sources: The programmable load can be connected to:

  • Solar PV systems and inverters
  • Wind turbine outputs or emulators
  • Fuel cell systems
  • Battery energy storage systems
  • EV chargers and DC fast chargers
  • Grid-tied and standalone inverters
  • Microgrid and hybrid energy systems

Once connected, the load draws power in a controlled and measurable manner, allowing accurate performance evaluation of the source.

2. Multiple Load Operating Modes: The system supports multiple programmable modes to simulate different real-world conditions:

  • Constant Current (CC) Mode – Maintains a fixed current draw regardless of voltage variation
  • Constant Voltage (CV) Mode – Regulates voltage while allowing current to vary
  • Constant Power (CP) Mode – Draws a fixed power level, ideal for inverter and battery testing
  • Constant Resistance (CR) Mode – Simulates resistive loads with adjustable resistance

Students can instantly switch between modes to study how different load types affect system behavior.

3. Dynamic and Programmable Load Profiles : One of the key strengths of the lab is its ability to run dynamic load profiles, such as:

  • Step changes in load
  • Ramp-up and ramp-down profiles
  • Cyclic or pulsed loads
  • Time-based load scheduling

These profiles are essential for studying transient response, stability, control-loop performance, and protection behavior of power electronic systems.

4. Real-Time Measurement and Monitoring: The system continuously measures and displays:

  • Voltage
  • Current
  • Power
  • Energy consumption
  • Load response over time

Data can be logged for further analysis, enabling students to plot performance curves, compare efficiency under different loads, and validate theoretical calculations.

5. Integration with Control and Research Platforms: The Programmable Loads Lab can be integrated with:

  • Energy Management Systems (EMS)
  • Microgrid control platforms
  • Converter and inverter control experiments
  • Algorithm development and validation

Researchers can synchronize load profiles with control algorithms to test system robustness, fault handling, and optimization strategies.

Applications and Learning Outcomes

Using the Programmable Loads Lab, learners can:

  • Study source behavior under variable loads
  • Test inverter and converter performance
  • Validate battery charge/discharge characteristics
  • Analyze power quality under dynamic loading
  • Perform efficiency and thermal studies
  • Simulate real consumer and industrial load patterns

This makes the lab a core utility platform across renewable energy, EV, power electronics, and smart grid education.

Frequently Asked Questions

A Programmable Loads are used to apply controlled electrical loads to power sources such as solar inverters, batteries, fuel cells, and EV chargers. It helps students and researchers test performance, stability, efficiency, and protection behavior under different loading conditions.

The lab supports Constant Current (CC), Constant Voltage (CV), Constant Power (CP), and Constant Resistance (CR) modes. These modes allow simulation of different real-world electrical load behaviors.

Yes. The lab is commonly used with solar PV systems, wind energy systems, fuel cells, battery storage, and microgrids to study how renewable sources respond to changing load demands.

Absolutely. The programmable and repeatable nature of the load makes it ideal for postgraduate research, converter validation, inverter testing, algorithm development, and performance benchmarking.

The lab is ideal for engineering colleges, universities, R&D centers, EV research labs, and training institutes offering programs in electrical engineering, power electronics, renewable energy, and smart grids.

Ecosense serves educational institutions, research centers, and training organizations worldwide. Our lab solutions are deployed across Asia, the Middle East (UAE, Saudi Arabia and Oman), Europe, Africa, and the Americas, supporting universities, polytechnics, and R&D facilities.

Yes. Ecosense offers international installation support, faculty training, and technical assistance through a combination of on-site visits, remote commissioning, and virtual training sessions. Long-term support is provided via digital manuals, online troubleshooting, and scheduled technical reviews.