Apparatus and method for calculating proxy limits to support cascaded model predictive control (MPC)
US10379503B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2014 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Jan 14, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L41/145
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes receiving, at a master model predictive control (MPC) controller from a slave MPC controller, information indicating to what extent the slave MPC controller is able to change multiple manipulated variables in each of multiple directions within a variable space without violating process variable constraints of the slave MPC controller. The method also includes estimating a feasibility region associated with the slave MPC controller using the information, where the feasibility region identifies a portion of the variable space in which combinations of manipulated variable values satisfy the process variable constraints. In addition, the method includes performing plantwide optimization at the master MPC controller using the feasibility region, where a solution generated during the plantwide optimization includes one of the combinations of manipulated variable values within the feasibility region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.