PITOPS
Closed-loop PID tuning and DCS-resident APC design software that identifies process models from normal operating data, so boiler and turbine loops can be retuned without step tests that disturb steam production.
FocusNo step tests required
Power PlantsProcess Control Software for Power Plants: PID Tuning, APC, and Loop Monitoring
Process control software for power plants optimizes PID tuning, DCS-resident advanced process control, and control loop monitoring across boiler, turbine, and combustion systems. Each power plant runs different dynamics, from load-following ramps to fuel and steam-path interactions, so it needs control strategies matched to that unit rather than plant-wide defaults.
The approach
How It Fits Your Power Plant
No rip-and-replace
An Optimization Layer
PiControl Solutions builds this software as an optimization layer that sits above a power plant's installed DCS and PLC hardware, including the boiler, turbine, and balance-of-plant control systems already in service.
Underperforming loops, fixed
Retunes Base-Level Loops
It finds underperforming PID loops, such as drum level, feedwater, and steam temperature, and retunes them against real operating data, without step tests that risk a plant upset.
Built to last
Coordinates Boiler & Turbine
It designs and tunes DCS-resident advanced control for boiler-turbine coordination, so Boiler Follow, Turbine Follow, and Coordinated Control modes hold their intended balance as load moves.
The challenges
Control Challenges Specific to Power Plants
Power plant control loops face conditions that generic tuning rarely handles well, because fuel quality, steam demand, and load dispatch shift constantly. PID controllers account for over 95% of all control loops in industrial plants, so tightening these loops is where power plant stability and efficiency are won or lost.
Boiler master & turbine demand
Boiler-Turbine Coordination
Boiler Follow, Turbine Follow, and Coordinated Control modes have to keep steam production and turbine demand in balance, and a poorly tuned coordination scheme shows up as pressure swings every time load changes.
Superheater, desuperheater, reheater
Steam Temperature Control
Superheater, desuperheater, and reheater loops interact through the same steam path, so a detuned spray valve on one stage drives steam temperature excursions that ripple into turbine metal stress downstream.
Fuel-air trim & furnace pressure
Combustion & Furnace Draft
Multi-fuel furnace combustion has to balance fuel and air across coal feeders while holding furnace pressure inside a narrow band, and any lag between fuel and air trim shows up as lost efficiency or flame instability.
Peaking & load-following duty
Load-Following Dynamics
Load-following duty forces boiler master pressure and turbine speed and load loops through daily and weekly ramps that base-load tuning was never designed for, so loops that looked fine at steady output oscillate the moment demand starts moving.
Read more on power plant process control challenges.
The software
Software Matched to Power Plant Applications
Three PiControl products carry most power plant optimization work, and each targets a different stage of the control problem.
Swipe
SUPERTUNE
Online auto-adaptive, stepless PID tuning that keeps retuning in the background as load ramps up and down, so loops stay tight through load-following duty instead of drifting between manual retunes.
FocusTracks load changes automatically
APROMON
Provides continuous control loop monitoring across boiler, turbine, and combustion loops, flagging oscillation, valve stiction, and coordination drift between boiler and turbine before they erode heat rate.
FocusCatches coordination drift early
Compatible with every major DCS and PLC via OPC-DA and OPC-UA, these products read live data from the control assets already installed, so no new control hardware is needed. They form the power plant slice of PiControl's process control software range.
Services
Consulting and Training for Power Plant Teams
Process optimization software depends on two things in power plants: experienced engineers to apply it, and plant teams who can sustain the gains.
Step 01 · Optimization
PID Tuning Consulting
PiControl's PID tuning consulting deploys PITOPS and SUPERTUNE directly on boiler and turbine loops, typically covers 50 to 500 loops per engagement, and documents before-and-after results.
FAQ
Power Plant Process Control FAQ
To see how the same optimization layer applies in other sectors, explore process control software by industry.
Power plant process control is the practice of holding boiler, turbine, and balance-of-plant systems at safe, efficient operating points using PID and DCS-resident advanced controllers. Process control software improves it by tuning those controllers against real operating data, which tightens boiler-turbine coordination and lets units follow load without excess oscillation.
Loops with tight coupling and frequent disturbances gain the most: boiler master pressure and drum level during load changes, superheater and desuperheater loops as steam temperature swings, and combustion air-fuel trim as firing rate shifts. Optimized loops on these systems commonly show a 30 percent or greater reduction in oscillation amplitude, which converts directly into steadier steam conditions and lower heat rate.
Yes. The software reads and writes through OPC, so it is compatible with every major DCS and PLC via OPC-DA and OPC-UA, and the advanced control it designs is typically deployed as DCS-resident logic rather than a separate MPC host. It runs as an optimization layer on top of the control assets already installed, which means no rip-and-replace and no new control hardware to justify.
Most base-level loops can be retuned within days of connecting to plant data, and a typical result is a 2 to 3 fold reduction in oscillation amplitude on the loops addressed. Consulting engagements document before-and-after performance, and plants commonly see a 2 to 4 percent efficiency improvement once combustion, boiler, and turbine coordination loops are optimized together.