Isochronous load sharing · Automatic dispatch · Feeder-priority load shedding

Load Management Control for Facilities That Cannot Afford to Go Dark

Generation, switchgear, and controls have to behave as one system.


Innova Technologies engineers load and power management systems that coordinate paralleled generators, dispatch available generation against station demand and spinning reserve, manage feeder-priority load shedding, and support transitions between utility-connected and islanded operation.


The result is a coordinated power management strategy built around the generation assets, electrical system, operating priorities, and contingencies of the facility.

Large diesel generator engine at a power facility

Control

Synchronizing, Dispatch, and Load Shedding Have to Work Together

Each generator has controls that regulate speed, load, voltage, and machine operation. What an individual generator controller cannot determine on its own is how an entire facility should allocate load, when another machine should be started, which breaker should close, how much reserve should be maintained, or which loads should be shed if generation is lost.


Those are plant-level decisions.


Innova Technologies engineers the control layer that coordinates them.


Isochronous load sharing distributes real power across paralleled generating units. Automatic dispatch brings machines online or offline according to station demand, operating requirements, and spinning reserve. Synchronizing and breaker-control logic coordinate connections to the bus or utility. Under-frequency load shedding with feeder-priority management protects the electrical system when available generation suddenly decreases.


The same control philosophy can also coordinate reactive load, utility interchange, island operation, large motor starts, peak shaving, demand response, renewable generation, and broader plant power management requirements.

Diesel engine cylinder heads and components

The Problem

An Islanded Power System Has to Balance Generation and Load in Real Time

A facility operating its own generation does not have an unlimited electrical grid behind it.


If a generator trips, the remaining machines have to absorb the change. A large motor start can create a meaningful frequency or voltage disturbance. Losing a utility connection can instantly change the operating requirements of every generator still online. When generator controls, switchgear, protection systems, and plant controls are supplied as separate systems, much of that coordination can fall to operators and operating procedures.


Hybrid generation adds another layer. Diesel or gas generation, wind, solar PV, and battery energy storage do not respond to changing load in the same way. Available renewable generation can change quickly, while dispatchable generation still has to maintain sufficient capacity and reserve to support the facility.


A properly engineered load management system brings those decisions together. Dispatch, spinning reserve, switching, load shedding, large-load management, and operating modes are coordinated around the electrical behavior and priorities of the site. This allows the facility to carry the generation it actually needs, maintain the reserve appropriate for its operating conditions, and respond predictably when the electrical system changes.

Capabilities

Load and Power Management Control Capabilities

Click any capability to expand the full technical detail.

Isochronous Loadsharing Across Paralleled Units

Innova can coordinate real-power sharing across multiple generators operating in parallel, allowing the generating fleet to maintain frequency while distributing load according to the capabilities of the individual machines. Mixed generating fleets can be accommodated, including gas turbines, steam turbines, hydro turbines, reciprocating engines, and other prime movers. Load-sharing strategies are engineered around factors such as machine capability, minimum loading, operating limits, and load acceptance characteristics. Transfer between isochronous and droop operating modes can also be coordinated with utility-tie status and the site's operating philosophy.

Under-Frequency Load Shedding and Feeder Priority

When available generation falls below connected demand, the electrical system has to rebalance quickly. Innova engineers under-frequency load shedding with feeder-priority management so the facility determines in advance which loads can be removed and in what order. Priority groups are developed around the site's operational requirements and critical-load hierarchy. The resulting logic can then be verified during factory testing before the system is commissioned in the field.

Power Management Architecture and Switchgear Integration

Power management extends beyond generator dispatch. It brings generation, switchgear status, electrical distribution, operating modes, alarms, and plant-level visibility into one coordinated control strategy. Innova can engineer plant-level automation that coordinates generator dispatch, breaker status, switching sequences, interlocks, alarms, remote I/O, load priorities, and operator commands across the facility. The scope can include interfaces with low- and medium-voltage switchgear such as generator feeders, transformer feeders, bus sections, bus couplers, neutral grounding systems, MCCs, and outgoing feeders. Operators can be given a consolidated view of generation availability, bus status, breaker positions, station load, spinning reserve, alarms, and power-management modes through the plant control environment. Power management, process control, and safety instrumented functions can remain appropriately separated while still exchanging the information required for coordinated operation. This architecture allows Innova to address power management as a plant-wide electrical control function, not simply as an extension of the individual generator controls.

Automatic Dispatch and Spinning Reserve

Automatic dispatch helps determine which generators should operate as station demand changes. Innova can develop dispatch strategies that account for available generation, station load, required spinning reserve, machine availability, operating priorities, run hours, and standby assignments. Spinning reserve can be calculated and presented to operators as a live operating value, giving the plant visibility into how much additional generation is actually available if demand increases or an operating unit is lost.

Electrical Distribution Studies and Shed Strategy Development

Innova can perform the engineering required to develop a load-shedding strategy, including evaluation of generation, connected load, feeder priorities, and the operating conditions the system must withstand. Where the customer or another engineering firm has already completed the electrical distribution study, Innova can also work from that supplied information and implement the required control strategy. The scope is established according to the needs of the project rather than assuming the study must originate from one party.

Black Start and System Restoration

Where black-start capability is required, Innova can engineer sequencing to restore generation and electrical loads without an external power source. A restoration sequence can include starting the initial generating unit, energizing a dead bus, restoring essential loads, bringing additional generation online, and progressively reconnecting plant loads within the operating limits of the generating equipment. The sequence is developed around the facility's generation assets, electrical architecture, and restoration priorities.

Peak Shaving and Demand Response

Where the facility's operating strategy or utility arrangement calls for it, Innova can support peak shaving and demand-response applications as part of the power management system. Generation can be dispatched according to site demand, utility import limits, operating targets, or external signals while maintaining appropriate generation and reserve margins. The specific strategy is engineered around the facility's electrical system, commercial requirements, utility arrangement, and generation capabilities.

Load Addition and Large Motor Start Management

Large electrical loads can create significant disturbances on isolated or limited-capacity power systems. Innova can coordinate the addition of large loads against available generation and reserve. Starting permissives, load sequencing, and generator dispatch can be used to prevent multiple high-demand loads from being added simultaneously or to bring additional generation online before the load is applied. This allows the system to account for large-load events as part of normal plant operation rather than leaving operators to manage them manually.

Hybrid Generation and Energy Storage Integration

Facilities increasingly operate with a mixture of dispatchable generation and renewable or stored energy. Innova can integrate visibility and supervisory control for wind generation, solar PV, and battery energy storage alongside conventional generation. Battery interfaces can include information such as availability and state of charge where required by the application. Bringing these resources into the same power-management environment allows dispatch and reserve strategies to respond to the actual generation available to the plant.

Synchronizing and Breaker Control

Innova can coordinate generator synchronizing, breaker sequencing, and close permissives across multiple generating units and electrical buses. The control strategy can include dead-bus and live-bus logic, synchronism checking, breaker sequencing, and interfaces with the protective devices responsible for electrical protection. Protection remains within the dedicated protection system, while the management layer handles plant-level sequencing, operating decisions, status, and operator interaction.

Utility Tie Management and Island Transfer

Load management controls can coordinate the facility's interaction with the utility as well as its operation after separation from the grid. Depending on the application, control strategies can regulate utility import, export, or other interchange targets. If the tie is lost, generating units can transition to the appropriate island operating mode while the load-shedding system responds to any immediate generation deficit. Planned separation and resynchronization can also be incorporated into the operating sequence.

Why Innova Technologies

Load Management Engineered by People Who Understand the Prime Movers

Innova Technologies, formerly Petrotech, brings more than 50 years of controls experience and more than 3,500 installations involving gas turbines, steam turbines, hydro turbines, reciprocating engines, generators, compressors, and other critical equipment. That experience matters because load management depends on more than electrical calculations.


Different prime movers accept and reject load differently. Their operating limits, response characteristics, minimum-load requirements, and control strategies directly affect how a facility should dispatch generation, maintain reserve, transfer between operating modes, and respond to a disturbance. Innova combines that turbomachinery knowledge with generator control, electrical integration, switchgear interfaces, and plant-level automation to develop load and power management systems around the actual behavior of the facility.

Contingencies Tested Before Commissioning
Factory acceptance testing gives operators and engineers an opportunity to verify the control strategy before the system reaches site. Applicable scenarios can include generator trips, utility-tie disturbances, breaker sequences, load-shedding actions, operating-mode transitions, large-load additions, and other contingencies defined during engineering. Using simulated field conditions and system states, Innova and the customer’s team can review sequences, alarms, permissives, interfaces, and operator responses before commissioning. The goal is straightforward: important operating sequences should be understood and verified before they are needed in the field.
A Coordinated Architecture for Generation, Switching, and Visibility
Generator controls, power management, switchgear interfaces, and plant-level monitoring can be engineered as parts of a coordinated architecture rather than as disconnected packages. This reduces unnecessary interfaces between systems and gives operators a more consistent view of generation availability, electrical status, load, reserve, alarms, and operating modes. Depending on project requirements, architectures can also incorporate redundant control hardware, fiber-optic communications, managed network infrastructure, and other measures appropriate for resilient plant-wide communication.

Open Architecture Without Proprietary Lock-In

Innova develops control applications using commercially available hardware and documented IEC 61131-3 programming standards. Architectures can range from simplex systems to redundant configurations depending on the criticality and requirements of the application. Load priorities, dispatch rules, operating sequences, control narratives, and other application logic are documented so the system remains understandable and maintainable throughout its operating life.
Equipment Experience

Experience Across Diverse Power Generation Equipment

Innova has controls experience across most manufactured gas turbines, steam turbines, reciprocating engines, EMD equipment, and other power generation equipment.


That broad equipment background allows load and power management strategies to be developed around the characteristics of the installed fleet rather than around a single OEM platform.

FAQ

Frequently asked questions

How does your load shedding scheme work?
Innova can engineer under-frequency load shedding with feeder-priority management based on the operational priorities of the facility. Feeders are grouped according to how critical their loads are to continued operation. If available generation falls below demand and the defined shedding criteria are reached, loads are removed according to that predetermined priority rather than leaving the decision to operators during the event. The scheme is developed during engineering and can be exercised during factory acceptance testing before commissioning.
Yes. Mixed generating fleets are common, and the load-management strategy can account for the characteristics of each machine, including its available capacity, operating limits, minimum load, and response to load changes. This allows gas turbines, steam turbines, reciprocating engines, hydro units, and other generating equipment to operate together within a coordinated power-management strategy.
Yes, when required. Innova can perform the engineering necessary to develop the load-management and load-shedding strategy, or work from electrical studies and system information supplied by the customer or another engineering firm. The project scope determines where that responsibility sits.
Not necessarily. Dedicated protection functions should remain within the appropriate protective devices. Innova’s load-management system can interface with protective relays and other electrical equipment for status, permissives, alarms, and operating information while coordinating plant-level sequencing, dispatch, load allocation, and operator interaction. The division between protection and management functions is established during system engineering.
Yes. Wind generation, solar PV, and battery energy storage can be incorporated into the wider power-management environment where required. This can give operators visibility into available renewable generation and storage status while allowing dispatchable generation and reserve strategies to account for those resources as operating conditions change.
A power management system coordinates the plant-level electrical decisions that individual generator controls and protective devices do not make on their own. Depending on the facility, that can include generator dispatch, spinning reserve, synchronizing, breaker sequencing, utility-tie control, load shedding, large-load management, bus and switchgear status, island operation, and operator visibility across the electrical system. Innova engineers these functions around the plant’s generation assets, switchgear architecture, operating priorities, and existing control systems.

Decide What Happens Before the Electrical System Has to Decide for You

From isochronous load sharing and automatic dispatch to switchgear integration, feeder-priority load shedding, island operation, peak shaving, demand response, and hybrid generation, Innova Technologies engineers load and power management around the contingencies and operating priorities of the facility.

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FORMERLY PETROTECH

A New Name for the Company We've Become.

SAME PEOPLE.
SAME ENGINEERING EXPERTISE.
BROADENED HORIZONS.

A MESSAGE FROM JOHN KAZOUR, CEO

Welcome to Innova Technologies

To our customers and partners,

For more than 50 years, our team has helped customers keep critical operations running. We built our reputation as Petrotech by taking responsibility for control systems on important rotating machinery.

As more industries came to us with similar challenges across power generation, compression, and hydro applications, our engineering team kept finding ways to solve them. Eventually, the business outgrew the Petrotech name.

We are entering our next chapter as Innova Technologies. The new name reflects the full scope of our work as a rotating machinery control systems specialist. We engineer controls around the machine, deliver complete projects from design through commissioning, and provide support that stays with the problem until it is solved.

Our name is changing, but the people, engineering experience, and commitment behind the work continue. Our responsibility to active projects and installed systems carries forward under the Innova Technologies name. Your current contacts remain the right place to start, and we will communicate directly if an administrative record requires an update.

We appreciate the trust you have placed in us over the decades, and we look forward to continuing that work as Innova Technologies.

John Kazour

CEO, Innova Technologies