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A detailed conducted EMI prediction model of the three-stage starter/generator is proposed in this paper to analyze the EMI during the starting procedure. The main generator and exciter high-frequency (HF) models are represented by multistage LRC networks. The traditional low-frequency (LF) models in d-q reference and the corresponding control strategies are combined with the HF models through the...
On the basis of analysis on the pressure and flow characteristics of an aircraft hydraulic energy system, each dynamic simulation model for components and subsystems of hydraulic energy system was constructed using AMESim, and simulation was made for the pressure and flow characteristics of hydraulic energy system of the typical phases under the flight normal condition. By simulation verification...
For the aerodynamic parameters identification of projectile and rocket under the influence of random wind, based on the control system sensitivity theory, the formation of the sensitivity and related mathematical models according to realistic systems are formulated. Sensitivity principle of the control system theory is applied to the identification of resistance coefficient. Analyzing missile system...
This paper presents indoor airflow and thermal environment which is formed by a cooling jet and a local heat source in a ventilated room. To illustrate the effects of the combined the plume and the jet-flow, a series of simulated values with different calculated conditions such as different buoyancy flux are analysed by Fluent simulation software. This paper presents an index ?? to describe the physical...
The ramjet is a new type propulsion system for high-speed flight test aircraft. The ultimate success of sustained high-speed flight will depend on configuring a fine and stable attitude flight control and robust airframe-propulsion-control combination. The mathematical models of high-speed aerodynamic forces and moments were established. A bank-to-turn autopilot structure was used for the longitudinal...
This paper focuses on the design of decentralized PID control scheme for the ALSTOM gasifier based on online coal quality analyzing technique. Taking into account characteristics changing with coal quality variations during gasifier operation, corresponding control strategies were added into the decentralized PID control scheme. Simulation results show good control performance for the ALSTOM gasifier...
This paper proposes a gasifier following-based coordinated control strategy for the IGCC power plant. The gasifier and the combined-cycle model are integrated to form the IGCC power plant model and a load and pressure controller is designed to reduce pressure variations with load changes. Simulation results show the good load-tracking property and satisfactory control performance of the proposed controller.
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