Quantifying the demand-side response capability of industrial plants to participate in power system frequency control schemes

Abstract

Abstract-Efficiency and sustainability considerations have propelled changes in power and process industries. These changes, which include the increased electrification of process industries, are causing concerns about the reliability of future electricity supplies, and therefore motivate the need for a Smart Grid on an industrial scale. This paper presents a method by which process automation engineers can assess the suitability of an oil and gas plant to participate in power system frequency control services. This paper discusses the necessary specifications for an automated system that enables effective variable operation by analysing the safe operating envelope of the plant. To do that, this paper proposes a methodology to characterise the appropriate actuators, variables and limits of set-point change. This methodology is applied to a case study representing an oil processing facility. The resulting analysis indicates demandside response capability that the facility can provide without jeopardising operations on-site.

110th Anniversary: Using Data to Bridge the Time and Length Scales of Process Systems

“…This ancillary service focuses on maintaining the frequency of AC current supplied by the power grid at a fixed target value (60 Hz in North America) and calls for frequent (over time scales in the order of seconds) changes in the power demand of a process. The economic incentives for considering such fast time scales in operational decisions are significant , and provide motivation for deriving new scheduling approaches (and associated models) for chemical processes. Challenges here include computing and implementing long-term scheduling decisions at very high frequencies while preserving operational stability and minimizing scheduling “nervousness”.…”

Demand side flexibility coordination in office buildings: A framework and case study application

“…Realization of DSF from industrial sector must contend with two main challenges. First, industrial processes need continuous and reliable power supply to prevent heavy commercial losses and maintain safety (Noor, Thornhill, Fretheim, & Thorud, 2015); therefore, their co-option as DSF resource requires careful on-site management. Secondly, industrial processes are very complex; for example some occur on real time basis and at times produce energy as a by-product (Ding, Hong, & Li, 2014).…”

“…However, the study indicated the need for real-scale DSF implementations. Noor et al (2015) successfully tested a methodology for leveraging DSF resources during industrial oil processing. In the study, actuators during DSF flexibility events were identified, appropriate point process model selected and safe power flexibility potential quantified before actuation using preset operation set-points (Noor et al, 2015).…”

“…Noor et al (2015) successfully tested a methodology for leveraging DSF resources during industrial oil processing. In the study, actuators during DSF flexibility events were identified, appropriate point process model selected and safe power flexibility potential quantified before actuation using preset operation set-points (Noor et al, 2015). Most importantly, the methodology by Noor et al (2015) ensures non-interruption of critical processes during DSF events using industrial plants.…”

Virtual Sector Profiles for Innovation Sharing in Process Industry – Sector 01: Chemicals

“…Most chemical processes operate in a continuous regime, resulting in a relatively constant electrical consumption profile. It is however important to note that many processes in the chemicals industry have longer time constants than the electrical grid, resulting in a potential for demand response programmes [21]. Fig.…”