Energy Storage & Generation - Batteries| PV | Wind & Generators
Altair EmployeeEnergy storage and generation are increasingly important as the grid becomes more distributed and renewable energy sources make up a greater share of power generation. Our users use our battery and photovoltaic (PV) models for microgrids, satellite power flow simulations, electric vehicle (EV) drive trains & more.
All of our machine models are 4 quadrants, which allows you to “motor” or “generate”. Use this functionality to simulate an electric vehicle powertrain with drive cycles and regenerative braking, or combine it with our wind turbine model for a wind power system simulation. Model highlights include:
- Various battery models: lookup-table-based, equation-based, varying charge/discharge impedance, etc.
- Various PV models: datasheet-based, normalized standard-based, simplified
- Wind turbine
- Supercapacitor
- 4 quadrant motors
Battery storage is an essential part of any renewable energy power system
Easy to define battery models with various levels of complexity, suitable for any battery chemistry. Charge and discharge our batteries for a complete cycle simulation.
Digging into the details:
We have a wide range of battery models to suit your simulation needs. All models allow for charge and discharge to be simulated. Easily model an output voltage and input impedance as a function of charge. Impedance can also be modeled to change as a function of charging or discharging. Model parameters allow for easy connection of battery cells in parallel and series to properly model your battery pack.
Users have used our battery models in bi-directional systems making use of PV, EV drivetrains, satellites, drones, and more!
Different battery chemistries (Li, Ni, Pb, etc.) are easy to model with our lookup-table-based models.
If you are looking to store energy in a supercapacitor we have a well-developed model for the charge and discharge characteristics for these devices.
Learn More:
- Design and DSP implementation of resonant LLC converter for On-Board Charger (PDF)
- Design of Resonant LLC Converter for 3.3‐kW On‐Board EV Charger (PDF)
- Design of Resonant LLC Converter for 20-kW DC-DC Converter (PDF)
- Lithium‐Ion Battery Model (PDF)
- Supercapacitor Model (PDF)
- PSIM Renewable Energy Module
Solar module with temperature and light intensity effect
Various PV model types for whatever you want to learn from your simulation. Drive our PV models with sunlight intensity and panel temperature. A non-linear VI output relationship is standard.
Digging into the details:
Don’t make the mistake of thinking that an ideal DC source is a good substitute for a PV model, as this is simply not the case. The non-linear output characteristics of a PV panel will cause major issues if not considered properly from the initial design of the control loops. We have different models that scale with complexity depending on what needs to be simulated. You can easily verify your MPPT algorithm to changes in sunlight and panel temperatures, incorporate multiple panels & batteries into larger microgrid simulations, and test other operating points & conditions
To help you model an I V curve from a particular panel, we have a utility to help you extract the model parameters from the datasheet.
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Monitoring and generating, all at once
All of our motor models are 4 quadrant, allowing for motoring and generating in the same simulation. Combine a motor model with a wind turbine model for a wind power simulation. Other prime movers can be easily defined liked a diesel gen or run of river turbine.
Digging into the details:
Modeling a generator is two parts, the first is to model the electric machine that will be acting as a generator and the component is the prime mover. For the electric machine, all of our motor models are 4 quadrant which allows for generation and motoring to be simulated in the same simulation. Look at a traditional generation example with a synchronous machine or model a small scale wind power system with a PMSM using our wind turbine model as the prime mover.
We have a range of motors for every application and various methods of modeling any type of prime mover: Diesel, water turbine, wind turbine, etc.
Our motor models and mechanical loads all have inertia modeled so proper starting transients of fault currents (certain models only). You can also make the inertia large to model something like a flywheel.
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