Title :
Computation of state variable sensitivities of PWM DC/DC regulators and its application
Author :
Wong, Billy K H ; Chung, Henry
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
Abstract :
A generalized technique for computation of state variable sensitivities of PWM DC/DC regulators is presented. The methodology not only considers the sensitivities of the state variable variations, but also takes their effects on varying the topology duration into account. A basic sensitivity graph for single topology is firstly derived. It is then propagated to determine the sensitivities of regulators with multiple topologies. Simple mathematical computation and network transformation are required only. The state variable sensitivity matrix is applied to determine the steady-state operating point, using a newly developed dual-loop iteration algorithm and to examine the stability of operation. The algorithm is illustrated with an example of boost regulator. The theoretical predictions are verified with the results obtained from available literature
Keywords :
DC-DC power convertors; PWM power convertors; iterative methods; sensitivity analysis; state-space methods; PWM DC/DC regulators; boost regulator; dual-loop iteration algorithm; mathematical computation; multiple topologies; network transformation; sensitivity graph; state variable sensitivities; steady-state operating point; topology duration; Circuit stability; Circuit topology; Computer networks; Network topology; Power electronics; Power system stability; Pulse width modulation; Regulators; Steady-state; Switching circuits;
Conference_Titel :
Circuits and Systems, 1998. ISCAS '98. Proceedings of the 1998 IEEE International Symposium on
Conference_Location :
Monterey, CA
Print_ISBN :
0-7803-4455-3
DOI :
10.1109/ISCAS.1998.704077
