An automated diagnostic system to streamline DSM project maintenance Johan du Plessis 15 August 2012

Introduction Equipment requires maintenance due to: Malfunction Changes in the operating environment Scheduled maintenance procedures Consider DSM projects that include the implementation of an EMS An EMS consists of: complex equipment computer hardware and software networking An EMS requires regular maintenance

Maintaining an Energy Management System (EMS) Physical system: Control and measurement equipment PLCs SCADA systems Networks Control philosophy Energy Management System Control philosophy Physical system Hardware Software Networking

Maintaining an Energy Management System (EMS) A typical EMS: ESCO responsibility: EMS implementation Performance assessment Handover to the client.. EMS server Equipment/ machines Equipment/ machines SCADA PLCs Production environment

Maintaining an Energy Management System (EMS) Typical maintenance requiring issues: Power interruptions Hardware failure Software failure Network failure Data corruption/loss Changes to the controlled process causes the control philosophy to become ineffective requires maintenance of the control philosophy takes more time and technical knowledge to correct

Maintaining an Energy Management System (EMS) Maintenance efforts of an ESCO: Monitoring performance Detecting reduced performance Identifying the cause Finding a solutions Taking corrective action Disadvantages: Labour intensive Requires technical insight Challenging to maintain a large number of EMSs

Remote Diagnostic and Maintenance Systems (RDMS) RDMSs have been successfully implemented: Vehicles Mobile devices Industrial equipment Problems are diagnosed remotely Remote maintenance is possible

Remote Diagnostic and Maintenance Systems (RDMS) RDMS composition: Maintenance centre Remote site Secure communication channel Information exchange Maintenance centre Remote site.. Device 1 Device 2 Device X APN/VPN Local processing

RDMS integration with an EMS.. EMS server Equipment/ machines Equipment/ machines SCADA system PLCs Production environment

RDMS integration with an EMS.. Maintenance centre SCADA EMS server HSPA router Software Remote access Data communication Redundancy Energy management Integration: Maintenance centre Diagnostics and Maintenance Agent (DMA) HSPA router Private Access Point Name (APN) Remote access software DMA

RDMS integration with an EMS.. SCADA EMS server HSPA router DMA Software Remote access Data communication Redundancy Energy management DMA collects software information Version Running status Responsiveness Memory usage Maintenance centre

RDMS integration with an EMS.. SCADA EMS server HSPA router DMA Software Remote access Data communication Redundancy Energy management DMA collects network information SCADA Router Mail server Maintenance centre

RDMS integration with an EMS.. SCADA EMS server HSPA router DMA Software Remote access Data communication Redundancy Energy management Modifications to energy management software Parameters of the control philosophy OPC connection status Information on the controlled process Maintenance centre

RDMS integration with an EMS DMA collects EMS server information Operating system uptime Network interfaces and configuration User privilege Firewall policies.. SCADA EMS server HSPA router DMA Software Remote access Data communication Redundancy Energy management Maintenance centre

EMS remote diagnostics Agent software Collects information Transmits information Maintenance centre Processing Database storage Daily reports ( , document/visual) Notification of failures or reduced performance Repair suggestions

EMS remote diagnostics.. Maintenance centre EMS server HSPA router DMA Software Remote access Data communication Redundancy Energy management SCADA

EMS remote diagnostics.. Maintenance centre SCADA EMS server HSPA router DMA Software Remote access Data communication Redundancy Energy management

EMS remote diagnostics.. Maintenance centre SCADA EMS server HSPA router DMA Software Remote access Data communication Redundancy Energy management

EMS remote diagnostics.. Maintenance centre Site G Site A Site E Site C Site X Site D Site F Site B

Automated diagnostic system for EMS Monitors EMS and EMS performance Notifications and suggestions Reduces fault detection time Less labour intensive More user-friendly to non-technical personnel Allows ESCO to successfully maintain larger numbers of EMSs Conclusion

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