Experiment Specification TC8.TS01.ES02

PHIL test: validation of PV systems functionality of participating in voltage control

Experiment Specification Definition

ID

TC8.TS01.ES02

Reference to Test Specification

Validation of the performance of PV systems in providing grid voltage control functionality

Title of Experiment

PHIL test: validation of PV systems functionality of participating in voltage control

Research Infrastructure

CEA/INES (France)

Experiment Realisation

The experiments require testing PV inverter hardware connected to a grid simulated in a real-time simulator via power amplifiers. Other PV systems and the MAS-based distributed voltage control scheme are also implemented and embedded in the real-time simulator along with the studied grid.

The currents of the PV hardware inverters are measured by sensors and sent to the real-time simulator. The control signals generated by the PV inverters’ agents that are simulated in real-time simulators are directed to the PV hardware inverters

Experiment Setup (concrete lab equipment)

The experimental setup is as shown in the figure below.

Overall, following are the lab equipment included in the experiment:

  • OPAL-RT eMegaSim OP5600 (or OP-5700)
  • Desktop for RT-LAB installation
  • 150 kVA grid simulator
    • 3-phase 120V – 690V
    • 0-2500 Hz fundamental/Up to 50 kHz harmonics
    • PHIL simulation
  • 25 kW PV inverter
  • 15 kW DC programmable source for PV emulation
  • 45 kVA out – 15 kVA in Power amplifier
  • Power hub 64 A
  • Sensor
  • I/O cards
Experimental Design and Justification

Different operating conditions will be applied in order to generate under/over voltage issues within the simulated grid. Consequently, the MAS will react to these voltage violations and therefore generate control signals to the hardware-PV inverter and other simulated ones.

The reactive power exchange capability of the PV inverter hardware can be observed and validated by monitoring their reactive power absorption/injection as well as the improvement of voltage levels at their PCCs.

Another objective of the experiment is to analyze potential issues that may arise from the dynamics of the PV inverter hardware when they respond to the voltage variation of the grid.

Precision of equipment and measurement uncertainty
  • OPAL-RT simulation time step: Ts = 5e10-6 s
  • Packet losses due to the limitation of transmission rate of network cards
  • Sensors and associated ADC
Storage of experiment data

Matlab files and csv files