DYNAMIC POSITIONING TECHOP GUIDANCE
You may download the DP Guidance TECHOP documents at no charge:
Management of Intermittent Faults in DP Systems
This draft is available for comment until April 23, 2023.
- MTS DP TECHOPs Table
- TECHOP A Method For Proving the Fault Ride-Through Capability of DP Vessels with HV Power
The focus of this TECHOP is to address the significance of fault ride through capability. Fault ride through capability is a significant aspect of proving the fault tolerance of a DP system power plant. Its significance is further increased when the principles of independence and segregation in power plants are not adhered to as the lack of fault ride through capability can lead to a loss of position.
- TECHOP Addressing C3EI2 to Eliminate Single Point Failures
Evidence from DP incident data and learnings from incidents (LFIs) confirms that cross-connections, commonality, external interfaces, and external influences (in and on all parts of the DP system) continue to be significant causal and contributory factors in DP incidents. They are often the reason that failure effects exceed anticipated consequences and sometimes the worst-case failure design intent. This TECHOP contains examples from actual DP incidents associated with: 1. Cross-connections between redundant equipment groups. 2. Commonality shared between redundant groups. 3. External interfaces & influences (affecting DP system as a whole).
- TECHOP Annual DP Trials and Gap Analysis
This TECHOP describes how to create an Annual DP Trials program that complies with the requirements of IMCA M190 & M191 using information obtained from the vessel’s DP Failure Modes and Effects Analysis and associated proving trials program.
- TECHOP Annual DP Trials and Gap Analysis spreadsheet companion to O-02
- TECHOP Blackout Recovery
This TECHOP describes the need for automatic blackout recovery on DP vessels, Design objectives, Desirable features, Undesirable features, Testing automatic blackout recovery and Preparation of specifications for BOR systems on DP vessels.
- TECHOP Competency Elements for DP Professionals Addendum
This is an addendum to TECHOP ODP_16_P ( Competency Elements for DP Professionals – DP SME’s/DP FMEA Practitioners) addressing competency elements for DP SME’s. This addendum TECHOP provides information on topics which have been listed as “coaching and mentoring” under reference.
- TECHOP Competency Elements for DP Professionals All Parts
This MTS TECHOP identifies competency elements that are desirable in DP professionals functioning in roles as DP SMEs in organizations as well as FMEA Practitioners. The TECHOP leverages the guidance documents published by the MTS DP Committee and utilizes the format of the Professional Development of DP Personnel Tool - PDDP2 (Formerly known as the MDAT) to provide a structured approach to obtaining and demonstrating the identified competencies.
- TECHOP Competency Elements For DP Professionals Part 1
- TECHOP Competency Elements For DP Professionals Part 2
- TECHOP Competency Elements For DP Professionals Part 3
- TECHOP Completed Incident Report
- TECHOP Conducting Effective DP Incident Investigations
This TECHOP provides general guidance in conducting effective and comprehensive DP Incident Investigations.
- TECHOP Continuous Trials for DP MODUs
The discussion includes an explanation of how the operational concepts of Critical Activity Mode (CAM) and Task Appropriate Mode (TAM) can influence the development of an annual trials program for MODUs based on IMCA M191,which allows the trials program to be spread over a year.
- TECHOP Defining Critical Operations Requiring Selection of Critical Activity Mode
Dialogue between regulators and industry surfaced the need to better identify the criticality and consequences of loss of position for industrial activities and the CAM or TAM configuration they are to be performed in.
- TECHOP DGNSS Position Reference Sensors
Many DP incidents involve DGNSS position reference sensors. This TECHOP addresses issues associated with DGNSS from the perspective of operations, design and people.
- TECHOP DP Operations Manual
This TECHOP addresses the need for and importance of providing effective guidance along with clear and unambiguous instructions on managing DP Operations to Vessel Operational Teams by way of comprehensive DP Operations Manuals.
- TECHOP DP Operations Manual Gap Analysis spreadsheet companion to O-01
- TECHOP Evaluation of Protection Systems
This TECHOP discusses the use of protective functions in fault tolerant DP systems, the importance of separation between control, monitoring and protection and classification of protective functions.
- TECHOP FMEA Gap Analysis
This TECHOP addresses the wide variation in the scope and quality of DP FMEAs for DP vessels of all types entering service or following conversion for dynamic positioning.
- TECHOP FMEA Gap Analysis spreadsheet companion to D-05
- TECHOP FMEA Testing
This TECHOP addresses DP FMEA proving trials and important tests which should be carried out to validate certain types of DP Class 2 and DP Class 3 redundancy concept. 2.1.2 This revision includes a DP FMEA proving trials gap analysis template that can be used to gauge the scope of a DP FMEA proving trials program in relation to the class of vessel (DP Class 2 or 3) and the power plant configuration (bus ties open or bus ties closed).
- TECHOP FMEA Testing Gap Analysis spreadsheet companion to D-02
- TECHOP Philosophy
This TECHOP impacts MTS DP Operations Guidance Document Part 2 Appendix 1, it incorporates high level philosophy statements about: Identifying DP as a Safety Critical Element; Additional information to be incorporated in Operations Manual; Establishing a Vessel Specific Drive off to Drift off strategy; Reinstatement of equipment post failure.
- TECHOP Power Plant Common Cause Failures
This TECHOP provides general discussion on a range of common cause failure modes affecting DP systems that can often be overlooked in poor quality DP FMEAs. More detailed discussion is limited to a small group of failure modes related to generator fuel and excitation control faults and the severe voltage dips associated with short circuit faults.
- TECHOP PRS and DPCS Handling of PRS
This MTS TECHOP provides general guidance on PRSs and the handling of the PRS by the DPCS. It is intended to enhance awareness of issues that have led to DP station keeping incidents and good practices to mitigate against such potential. The TECHOP promotes ‘systems thinking’ application to PRSs and handling of PRS by DPCS as a means to achieve incident free DP operations.
- TECHOP Software Testing
This TECHOP considers the need for software testing for systems associated with computer based control systems that may affect dynamic positioning systems. The principles apply equally to any safety or mission critical systems.
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