Regulatory Control Stabilization

Plant safety is paramount to the continuance of production operations and is drawing increasing attention globally. All process industries now recognize the importance of regulatory control stabilization as the baseline for plant safety. To achieve stability it is required to evaluate and improve the effectiveness of the regulatory control loops (e.g. control configuration, PID tuning, instrumentation). Achieving regulatory control stabilization is a pre-requisite and paves the way for advanced process control (APC) implementation.

Yokogawa's 30+ years of hands-on experience as a global supplier of process automation solutions has provided a wealth of knowledge and understanding of regulatory control loops. Yokogawa can deliver first class consulting services in a diverse range of industries and processes using its proven standardized procedures and methods.

Yokogawa's regulatory control stabilization service is based on standardized Six Sigma DMAIC methodology. This provides clear and effective steps to achieve a defined target while ensuring consistent and high levels of service quality.

	Determine priority of improvement  - Follow-up to set point change  - Response to disturbances Define target value for improvement  - within X seconds  - within Y% of deviation
	Acquire necessary information regarding target control loops e.g.  - P&ID  - Process overview  - Control strategy  - PID parameters  - Tag range  - Loop configuration  - Sensors  - Analyzers  - Control valves  - Control KPIs  - Historical trends
	Assess current control performance Identify root causes of problem Decide proper countermeasures e.g.  - Change of loop configuration  - Change of PID parameters  - Replacement of field instruments
	Take decided countermeasures*1
	Evaluate improvement effect Report on results of service

*1: DCS/field engineering work (e.g. change of loop configuration) will be proposed as required.
*2: This service is provided by executing the above five steps of the DMAIC cycle.