COUPLING

Name of the coupling group this device belongs to. Devices sharing the same coupling name are constrained to have proportionally related power flows, via a hard equality constraint. Use this to model a device that converts one commodity into another, by describing each of its commodity ports as a separate device. For example, a combined heat and power (CHP) unit is described as a gas input device, a heat output device and an electricity output device, all sharing one coupling name. Use together with coupling-coefficient to set the flow ratios.