SmartValve™

The SmartValve™ leverages proven Guardian™ technology and builds upon the success of its predecessors. The SmartValve can increase or decrease the reactance of a line, thereby pushing power away from or pulling more power towards the circuit on which it is installed.

By using revolutionary power electronics and Static Synchronous Series Compensator (SSSC) technology, the SmartValve injects a voltage waveform in quadrature to the line current that is independent of the magnitude of the line current. This technology is capable of providing capacitive series compensation without the negative characteristics of series capacitors such as sub‐synchronous resonance (SSR). Likewise, the SmartValve can be tuned to add the right amount of inductance to limit power flow without the disadvantage of constant VAR consumption of a whole bank of fixed series reactors.

SmartValves are typically installed on dedicated transmission towers (SmartTowers™) or in banks (SmartBanks™) within or near the transmission right-of-way. Due to their modularity and high kVAr output in compact and lightweight enclosures, they are particularly well-suited for Mobile applications. SmartValve technology is applied to all three phases, with the number of devices per phase determined by the amount of compensation required.

Explore the tabs below for product-specific information and details on how this technology is deployed, controlled and operated.

Note: The SmartValve was formerly known as the Power Router.

Deployment Options

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SmartTower

This tower can replace an existing structure within a circuit or serve as a new dedicated tower in the middle of a span. Existing towers can also be modified to accommodate units. Utilities needing to replace old poles or towers can use this method to upgrade their infrastructure and simultaneously add power flow control capabilities to their system.

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SmartBank

This method consists of multiple metal structures, each carrying multiple SmartValves. This extremely high-density deployment can be constructed on a small footprint within an existing right-of-way, a substation or a dedicated parcel of land adjacent to the ROW or a substation.

The SmartBank pictured here has two rows of towers, with each tower supporting six SmartValves. An empty row of towers is also pictured, allowing the utility to quickly add more units as needed. Smart Wires works directly with the utility to determine the SmartBank design that is best suited for a particular application.

Communication & Control

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The End to End (E2E) Communication and Control System (referred to as the E2E system) seamlessly interfaces with utility Energy Management Systems (EMS) and manages the operation of Smart Wires Field Devices (SWFDs).

Utilities operators control of the amount of reactance provided by the fleet of SWFDs at the EMS level. EMS commands are transmitted to the PowerLine Gateway over a secure communication channel. The PowerLine Gateway is an IT/SCADA device, located at the substation, which provides configuration, observation, control and asset management services for the SWFDs. The PowerLine Gateway supports multiple communication protocols – including DNP3, IEC 61850, 60870-5-104 and others – and transmits the utility’s EMS commands to the PowerLine Coordinator. The PowerLine Coordinator, an IT/SCADA device located either in the substation or in the field, manages the secure wireless network that is used for communication with the SWFDs.

Optional PowerLine Manager software runs on a server located in the utility data center. This software includes features such as remote access to all the diagnostic data from the SWFDs and the ability to perform remote software updates.

Once the SWFDs are programmed initially, each unit largely controls its individual reactance injection on the transmission circuit. The SWFDs detect faults and automatically bypass when the current is at fault condition levels.

The Smart Wires Difference

Smart Wires solutions offer key advantages compared to traditional approaches to infrastructure investments. All of Smart Wires products are modular in-nature, meaning that deployments can be fine-tuned to meet system needs. Should utilities require a different amount of power flow control at some point in the future, Smart Wires’ installations can be easily scaled up or down. Smart Wires solutions are quick to deploy, providing utilities with an installed solution capable of addressing emergency needs. Also, all products are designed to be easy to re-deploy. This means that if grid conditions change and power flow control is no longer needed on a specific circuit, the Smart Wires solution can be moved to a different location on the grid. This reusable investment is perfectly suited for addressing problems that are known to be short-term or temporary in nature.