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In photovoltaic (PV) systems, the PV array represents about 57% of the total cost of the system, so it is very desirable to operate the PV panel at the maximum power point (MPP). The output characteristics of the solar array are nonlinear and vitally affected by solar radiation, temperature, and load conditions. In this respect simulation analysis of PV array is essential to understand the output...
For the case of intercepting maneuvering target, A new nonlinear terminal guidance law with robustness is proposed by adopting nonlinear H∞ control theory. The mathematic model was built according to nonlinear kinematics relationship between missile and target whose acceleration as disturbance was introduced. Based on the terminal guidance law's measure of zeroing the line-of-sight angular rate and...
Morphing concepts for missiles have been a topic of current research interest in aerospace engineering. For the morphing wings technology of missile, a kind of autopilot design method is proposed by H∞ control theory. In order to have the better flight performance in the different regimes, the missile can automatically change the wings area symmetrically. The nonlinear dynamic model is established,...
For the case of intercepting maneuvering target, A new continuous nonlinear guidance law with robustness is proposed by adopting L2 gian method. The mathematic model was built according to nonlinear kinematics relationship between missile and target whose acceleration as disturbance was introduced. Based on the method of zeroing the rate of line-of-sight angle and zeroing the relative distance, a...
For the case of a three-dimensional interception, a new continuous nonlinear H∞ guidance law with robustness is proposed. The mathematic model was built according to relationship between missile and target whose acceleration as disturbance was introduced and considering two-order autopilot dynamic. Based on the method of zeroing the rate of line-of-sight angle, a global nonlinear H∞ control strategy...
For the case of homing missile against ground fixed target, a new scheme of integrated guidance and autopilot design is proposed with impact angular constraint. An integrated guidance and control model in the pitch plane is formulated, by combining the relative relationship between homing missile and target and the dynamic of autopilot, where the information is obtained directly from the instrument...
An adaptive robust control (ARC) algorithm is developed for a class of uncertain dynamic nonlinear system with unknown input backlash or backlash-like hysteresis, parametric uncertainties and uncertain disturbances. Due to the non-smooth dynamic nonlinear nature of backlash, existing robust adaptive control methods mainly focus on using approximate inversion of backlash by on-line parameter adaptation...
A high performance adaptive robust control (ARC) algorithm is developed for a class of nonlinear system with unknown input backlash, parametric uncertainties and uncertain nonlinearities disturbances. Due to the inherent dynamic nonlinear nature of backlash, existing robust adaptive control methods mainly focus on using on-line parameter adaptation for an approximate inversion of the unknown backlash...
According to the problem of attitude control for variable-bend-tail vehicle, the mathematics models are established and the robust attitude control system is proposed based on variable structure control theory. The movement model of the bend tail section is derived from considering the coupling mutual action between tail and front of vehicle, and the nonlinear mathematics dynamic model of variable-bend-tail...
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