Enhanced Substation Automation by Mitsubishi Electric
As electrical supply and distribution networks become more complex with increasing decentralized renewable energy generation while at the same time the requirement for reliable and secure energy delivery continues to grow, the importance of a modern and advanced Substation Automation System cannot be overstated. With a range of offerings in the market, it can be challenging to choose the right automation system that fits your unique needs, whether these be for new or retrofit installation. However, our PMSXsas is designed to offer you unmatched performance, reliability, and scalability - all in one package.
Challenges for a Modern SAS System
In order to operate substations effectively, future substation automation systems need to provide detailed, granular insights into system performance. Operators require real-time information to make better decisions and optimize operations. The chosen substation automation system must be flexible and scalable to accommodate a wide range of applications and substation sizes, from smaller installations to large-scale power distribution networks. An open architecture that uses industry-standard protocols enables seamless integration with existing and future systems, ensuring efficient workflows. Furthermore, the substation automation system should provide both business and operational insights through customizable dashboards and analytics capabilities, allowing personnel to monitor, diagnose, and optimize performance.
Our Solution for Your Needs
PMSXsas addresses these challenges directly, offering maximum safety, efficiency, and reliability for both local and remote control and monitoring. Designed with a flexible system architecture, it adapts smoothly to changing requirements, technologies, and operational philosophies. Cyber security is embedded in all of our products, safeguarding your data and operations comprehensively. PMSXsas is the perfect choice for organizations seeking a scalable and reliable SAS that goes beyond data to deliver actionable insights, helping to optimize performance, reduce downtime, and boost operational efficiency.
WHAT PMSXsas PROVIDES ITS USERS
 | Cybersecurity |  | User interface and user experience |
 | Interoperability |  | Real-time monitoring and control |
 | Scalability and flexibility |
PMSXsas is designed with these features in mind from the ground up, with a focus on delivering unmatched performance, reliability, and scalability to meet the evolving needs of modern power grids.
PMSXsas SYSTEM ARCHITECTURE
Compliance with all Relevant Standards
ASSURED INTEROPERABILITY
- Auto-discovery of substation’s primary and secondary circuits from SQL-defined metadata
- Rapid, error-free rendering of its topology, with live display of substation status ex. IED communcations
- SAS controller as participant in switchgear control and protection scheme incl. GOOSE transaction
- Robust cyber security implementation at both system and component level
- Rigorous (physical and system) user access control
- Intrusion detection and prevention
- Network segmentation
- Deep packet inspection as option
- Incident preparedness and response
- As ISO 27001 certified supplier, we have deployed many systems to protect against cyber threats and inviolability of information
- Substation vulnerability audits provided
- Recommendations for threat minimisation together with our customers
- Ensuring SAS is always synchronized with the operator and grid’s clock
- Key requirement for disturbance analysis
- Historical replay for time-sequence based reconstruction of events
- Communication ensures needed interoperability with:
- In-substation IEDs and equipment
- With superior systems
- These include:
- IEC 61850 (MMS+GOOSE)
- DNP3 + IEC 60870-5-104
- Modbus RTU/TCP
- Profibus/-NET
- CC-Link IE
- OPC-UA
Application sectors
Apart from its use in traditional TSO and DNO networks, PMSXsas finds further application in renewable energy and smaler-scale electrical distribution networks such as as large industrial consumers, municipal or community energy providers, and other similar applications.
Renewable Energy Integration
Smart Grids
Microgrids
Industrial Applications
Municipal and Community Energy Providers
PMSXsas OPERATING STATION – GOING BEYOND REGULAR STATION CONTROL
Taking advantage of our decade-long experience of controlling critical industry processes with our plant automation system PMSXpro, PMSXsas benefits from all needed substation operational functions.
Sequence of Events
- Event list
- Historical events
- Filtering function
- Export facilities
Measurement reports
- Statistical measurement reports stored in report database
- Hour/day/week/month/year report
- Tabular or graphical representation
- Report data in ASCII or CSV format
Operator assistance
- Change-over of load-feeding busbar from normal to backup supply and vice versa
- Control at bay level, configuration and supervision at station level
- Collision prevention
Alarms
- Alarm list (repeat/fleeting alarms)
- Alarm acknowledgement
- User-defined alarm classes
- Control of acoustic alarm
Operational statistics
- Maintenance information for CBs
- Numbers of operating cycles
- Accumulated magnitude of the trip currents, etc.
Network state mimics
- Colour live state representation of primary/energy-bearing circuits
- Control and protection (secondary) circuit representation
- Drill-down to available detail data
Trends
- Short-term observation and analysis
- Assignment of any process values
- Graphical or tabular representation
- Calculation formula
Load shedding
- Control at bay level, configuration and supervision at station level
- Static load shedding
- Adaptive load shedding
Uncompromised Security
PMSXsas modular Substation Automation System is designed for maximum safety, efficiency and reliability for local and remote control plus monitoring of your substation. Mitsubishi Electric is a smart choice for new stations, retrofit and migration projects.