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In this paper, low-frequency control technology of SPWM inverter was studied theoretically, and the new rule of chosen carrier ratio and relevant equation were produced seriously for optimization of multi-mode modulation technology. On this basis, experimental system of the low-frequency of inverter was built with TI TMS320LF2407A DSP as control core. Finally, relevant experimental research was implemented...
Energy conservation project on motor system is one of the top ten energy-saving projects of National Eleventh Five-Year. This paper is about energy-saving control theory and technology on a doubly-fed motor system, which fully reflects control conception of energy-saving system and can achieve double-fed motor speed control to run energy-saving control, reactive power compensation control and motor...
The variable refrigerant volume (VRV) air conditioning systems have been employed in small and medium sized buildings recently for its advantages of comfort, energy conservation and easy maintenance. However, the optimal control of VRV air conditioning systems is very difficult due to cross-coupling system parameters and time-variant operating conditions. In this paper, the indoor temperatures are...
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