New PI+R Controller Cuts Battery Storage Costs with Faster, More Accurate Dispatch
A reset mechanism boosts convergence speed and eliminates overshoot in isolated BESS networks.
Deep Dive
Researchers propose a PI+R (proportional-integral with reset) controller for economic dispatch in isolated battery energy storage systems (BESS). The design resets the integral term when the proportional term crosses zero, accelerating convergence and improving accuracy without overshoot. A centralized reset mechanism ensures supply-demand balance, while a dwell-time condition prevents Zeno behavior and handles input delays. Simulations verify the scheme's effectiveness.
Key Points
- PI+R resets the integral term when proportional term zero-crosses, improving convergence speed and accuracy without overshoot.
- Centralized reset mechanism ensures supply-demand balance across isolated BESS networks.
- Dwell-time condition prevents Zeno behavior and allows handling of input delays in the control system.
Why It Matters
Faster, cheaper battery dispatch can reduce operating costs in isolated grids and microgrids.