The new cRIO-based Dynamic VAr controller is the 5th generation TSC controller. It provides:
- Major Speed improvements,
- Major Accuracy Improvements,
- Improved Hardware Durability,
- Additional Features for Operation and Maintenance,
- Simplified Secure Remote monitoring.
It can also be retrofit onto existing TSC systems manufactured by T-Star, PQS or AMSC™.
Some of the new controller’s capabilities are listed below.
Speed and Accuracy
- Controller scans (analog and digital) inputs at 7+ kHz, resulting in faster and more accurate controller operation.
- More digital inputs are scanned, resulting in improved feedback and performance.
- Analog inputs are measured more precisely, resulting in more accurate operation.
- Valve turn on/turn off signals are more precise and based on valve-specific feedback.
- Advanced processing power allows for more accurate algorithms, improved logging and increased flexibility.
NI cRIO hardware was selected for it’s proven robustness (with independent certifications for hazardous, marine, and arctic use) in addition to its real-time processing capability, and its programming flexibility. National Instrument’s maintenance to long-term backwards compatibility is also important.
Operation and Maintenance Features:
The controller combines uniform, remotely upgradeable controller software with site-specific information, eliminating previously customized site-specific software. Performance reviews, adding power factor correction stages, and modifying control response are rapid, and can even be done remotely. The standard controller configuration:
- Controls up to 4 SVC stages (15 steps plus off).
- Controls up to 2 vacuum-switched power factor/ harmonic filter correction stages.
- Can “run-flat” (selectively disable) SVC or vacuum-switched stages
- Can customize multiple alarms and thresholds.
- Provides up to 5 standard IO points.
- Automatically data-logs to monitor performance and detect/record errors.
- Point-specific IO alarms allow quick diagnosis of problems.
Local Connectivity and Remote Monitoring:
Two Ethernet ports are available on the new controller.
ETH1 is connected to a customer HMI (with 3 levels of password access protection) and can also be connected to a customer’s internal Ethernet network to allow authorized users (such as operators) to watch the real-time performance.
ETH2 used for an SSL VPN embedded in the controller that automatically connects to T-Star, allowing remote monitoring, tuning, and if necessary, diagnosis of the SVC. This secure connection is accessible only to qualified T-Star personnel.
No Internet traffic is allowed between ETH1 and ETH2. This configuration provides customers with maximum internal security. Our customers find the remote VPN connection invaluable. T-Star remotely tunes (adjusts) systems, and updates software providing new features. Remote access combined with conscientious annual on-site maintenance provides the optimum combination of low maintenance cost and high reliability.