One is introduction of loop phase margins for multivariable control systems, which extends the concept of phase margin in SISO systems to MIMO systems. The other one is development of an algorithm for computing
To account for loop interactions in the innovative design of a multi-loop controller, the idea of an effective transfer function (ETF) was recently introduced [21,22,23,24]. The ETF concept can be used to transform the design of a multi-loop controller into a single-loop controller design....
loop can be tuned separately. A design method that provides guidelines for loop pairing as well as the potential quality of the control is therelative gain array(McAvoy, 1983). If there are only small interactions between the loops, then the controllers can be designed independently of one ...
Multivariable for five measurements in one device Energy (BTU) Monitoring for real-time monitoring of energy consumption Highly reliable with no moving parts Loop power option available Rugged, long-lasting design for the industrial applications
Necessary structural criteria are obtained for linear multivariable regulators which retain loop stability and output regulation in the presence of small perturbations, of specified types, in system parameters. It is shown that structural stability thus defined requires feedback of the regulated variable,...
the influence of right half-plane zeros on controller design and closed-loop performance is evidenced, and the existence of fixed stabilising controllers in the presence of system uncertainty is established; [8], where the MSF characteristics for a range of 2 × 2 plants are studied; [9], wh...
Differential Pressure/Process Temperature 4 Differential Pressure 5 and 6Static Pressure/Process Temperature Based on the measurement type of the transmitter, complete only the necessary process measurements listed in the table above. For example, for measurement type 2 only fill out the Differential ...
Multivariable controllers for canal automation have been designed based on optimal control techniques: linear[RED 96]ornonlinear optimizationand model inversion[LIU 95]. Different modelinversion methodsare described in the literature, leading generally to open-loop controllers such as Chevereau[CHE 91]and...
a) detecting a need for enhancing system stability in said power grid system; b) modulating at least one of reactive power, real power, and a combination of real and reactive power from said power generation facility; and c) providing at least one of modulated reactive power, modulated real...
The description provides for a system that allows solar farm inverters to be controlled as a STATCOM in the night when there is no sunlight. When used as a STATCOM at night, the entire rating/capacity of solar farm inverter is employed to provide several benefits to the power system as norm...