It is an alternative to variable speed systems, which necessitate a modified generator and power conditioning equipment.
In this paper, we examined the impact that the process used to calibrate the crash prediction model has on estimates of safety impacts of a variable speed limit system.
In this paper we have examined the sensitivity of the estimated safety performance of a variable speed limit system to the method used to calibrate the log-linear crash prediction model.
The off-design operation is achieved handling the following parameters: air mass flow rate, fuel mass flow rate, combustor bypass, gas turbine bypass, avoiding the use of a variable speed control system.
This study explores stakeholder perceptions in the implementation of a variable speed limit (VSL) system in St .Louis, Missouri.
The behaviour of a variable speed wind power system (WPS) has two simultaneous aspects: a stationary one, due to the seasonal (low frequency) component of the wind speed, and a dynamic one, in response to the turbulence (high frequency) component.
At first, a developed Lyapunov model reference adaptive feedback linearization method accompanied by an indirect space vector control is applied for extraction of maximum energy from a variable speed wind power generation system.
This paper presents the application of DTC space vector modulation (DTC-SVM) to two and three level voltage source inverter (VSI) to improve the energy efficiency of a variable speed wind energy conversion system.
In order to determine the economic feasibility of solar-powered water pumping and desalination for agriculture, an engineering system model that performs hourly simulations of a variable speed PV pumping and desalination systems operating at variable speed without electrical energy storage was developed.
These tests indicated that the refrigeration system with a variable speed compressor consumes 15% less energy than an equivalent conventional refrigeration system and that the temperature profiles inside the compartment are more stable.
