The representation of generators typically includes constraints such as maximum and minimum generating levels, maximum rate of change of output, as well as environmental constraints on hours or levels of operation, etc.
Also, the distance-based measures of access could be refined to include travel constraints, such as physical and psychological barriers to pedestrian movement (Brown et al. 2007).
For the solution we employ a constrained optimization algorithm that allows us to include further constraints such as one-sided fitting or surface regions that have to be avoided by the fitting curve.
An H∞ synthesis including several constraints, such as pole assignment or high-frequencies roll-off specification, is proposed to design a low-order robust control law.
A mathematical model is constructed with the objective of optimizing total energy cost during the day, including some constraints such as input-output energy balance of the EH, electricity price, capacity limitation of the system, and charge/discharge power of BESS.
The cost function often includes chemical constraints such as bond angles and anion−anion separations, though these tend to be added in an ad hoc manner.
The accessibility domain includes physical constraints such as family and work responsibilities that interfered with seeking help, geographical location (not enough providers in an area), difficulty obtaining transportation to the provider's office, difficulty obtaining a timely appointment to see a provider, and inconvenient office hours.
More recently, the method was modified to include experimentally derived constraints, such as known helix helix contacts (Barth et al., 2009).
This paper proposes a novel SCUC formulation that includes dynamic gas constraints, such as the line pack, and transmission contingencies in power and gas networks for studying the integrated system reliability.
