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Research on Smart Sine Wave Dimmer

Author: ZhengChunMao
Tutor: WuQingBiao
School: Donghua University
Course: Control Theory and Control Engineering
Keywords: Energy-saving lighting AC / AC AC chopper PWM MATLAB simulation
CLC: TM923.03
Type: Master's thesis
Year: 2010
Downloads: 112
Quote: 0
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Abstract


Today's society, energy-saving and new energy development and research has been widespread concern, has become a hot research at home and abroad. Energy-saving lighting by the Chinese put on the agenda, China has developed a \foreign technology is more mature, has a large number of products, the study lighting the terminal energy saving especially sine wave energy dimmer has a broader significance. As semiconductor technology, power electronics, control technology and the rapid development of microprocessor technology, the use of high-speed microprocessors, DSP control AC voltage regulation, sine wave energy saving tune light as possible. Has a significant meaning for the energy-saving society, and thus get the interest and attention of many companies and research topics at the forefront of the energy-saving direction. This topic is an exploration of the pre-research subject. The main subject of the control system for road lighting energy conservation discussion, study energy conservation, as well as for different load characteristics of different modulation is achieved by adjusting the voltage of the light source, reduce the brightness of the lights in the middle of the night on the road pedestrians and vehicles few cases mode discussion. In this paper, the circuit of AC / AC-BUCK AC voltage regulator dimming system, the principles of AC / AC-BUCK circuit AC voltage regulator; established a mathematical model of the AC chopper, analysis of a case of different chopping frequency The expression of the output voltage; studied a variety of AC / AC-BUCK circuit topology, a symmetrical structure of the circuit is selected as a main circuit of the sinewave dimmer; study a different modulation mode under different load characteristics output voltage, current, proposed a kind of non-current detection complementary modulation mode; application of classical PI control theory AC / AC-BUCK MATLAB model by model, using simulation software system simulation. The final design of the hardware and software structures sine wave dimming energy-saving system, and experimental verification. The results demonstrate the non-complementary modulation mode with the current detection the adaptation load capacity is relatively strong, metal halide lamp dimming energy saving. Through research on the subject, so that can not be a sine wave dimming metal halide lamps, high pressure sodium lamps, gas discharge lamp as possible, so that the road lighting energy conservation made possible by a far-reaching significance for the social development of energy-saving technologies.

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CLC: > Industrial Technology > Electrotechnical > Electrification,electrical energy application > Electrical lighting > General issues > Structure
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