As a new FACTS device, thyristor controlled braking resistor (TCBR) is one of the effective devices to enhance transient stability of generator. In this paper, a coordinated controller for TCBR and hydro-generator excitation system with the multi-index nonlinear coordinate control method based differential geometry theory is proposed. By means of Hartman-Grobman theorem, differential geometry multi-index nonlinear control (DGMINC) design method can reassign the closed-loop system eigenvalues of linear approximate system to the nonlinear system via appropriately selecting output function parameter matrix. Therefore, the system can get good control performance. The simulation results show that TCBR and generator excitation system controlled by this coordinate control strategy can decrease the generator acceleration area rapidly when the severe fault occurred and increase deceleration area significantly after the fault is cleared. So that, power system transient stability limitation improved significantly.

For measure parameters of aerocraft Attitude, this paper puts forward the BP ANN model based on the information integration theory, the problem of lower angular speed accuracy and bigger navigation error are solved. Through researching the aerocraft attitude affection based on the output of the gyro/geomagnetic sensor，the network model are set up. The gyro/terrestrial magnetic sensor output signal is used as input, and real-time three axis angular speed as output. After trained for the test samples, we got the higher precision of angular speed, then calculated attitude angle applied the approximation formula method, reduced systematic errors. After lots of experiments on the no magnetic turntable, the result shows that the method has the characteristics of fast convergence and better angular speed accuracy.

Combining domestic and foreign literature, the technology of flight attitude testing technology was summarized. The research process of this field includes independently inertial measurement unit and inertial navigation system. The previous stage is the test technology only depend on one kind of navigation equipment, such as Gyro, accelerometer or electromagnetic sensors etc, the latter means various combinations of measurement units, on the basis of complementary advantages in performance to improve testing accuracy each other. Based on the testing technology was analyzed and compared, configuration, merit and demerits of multi accelerometer were discussed. The future development of this technology was prospected finally.