Attitude Dynamics and Control for a Solar Sail with Individually Controllable Elements

Intelligent Fuzzy Control in Stabilizing Solar Sail with Individually Controllable Elements

“…By comparing the two simulations, it can be found that the overshot of IFLCD is much less than the overshot of method in Ref. [15]. Besides, the control deviation of θ increases in the first 180 seconds, but IFLCD do not have this bad performance.…”

“…In order to evaluate the control performance of IFLCD, an attitude stabilization simulation of SSICE under the same condition is carried out by using the control method in Ref. [15] as shown in Figures 10 and 11. However, this control method can only be used on the basis of knowing the mathematical model of SSICE.…”

“…NanoSail-D uses distributed layout to avoid risk [11]. Solar sail with individually controllable elements (SSICE) provides attractive decentralized layout and three-axes control torque [14,15], which is a great choice of configuration design for challenging the problem of stabilizing a time-varying and uncertain system in long voyage. Besides, an appropriate control algorithm is still needed.…”

An integrated simulation system for operating solar sail spacecraft

“…where C N and C S are the lumped heat capacity of the internal node and external node, T N and T S are the node temperature of the internal and external nodes, h NS is the thermal conductivity coefficient between two nodes, ε NS is the radiant heat-transfer coefficient between two nodes, F S is the superficial area of the external node, Q N is the power consumption of the internal node, and Q 1 , Q 2 , and Q 3 are space heat fluxes, respectively representing the solar radiation, the earth infrared radiation, and the sunlight reflected from the earth. The power management system is applied to power or charge for the solar sail [27] and the payload, which is the precondition of all the subsystems on board working normally. When the solar sail is at the lighting region ("Flag" is equal to 0), the power supply array will power the bus bar, and the charging array will charge the accumulators (denoted as working mode I).…”

“…8. This section chooses silicon solar cell as simulation case to research its mathematical model [27].…”