风光互补路灯控制系统的研究
发布时间：2019-01-30 17:31
【摘要】：目前我国正处在经济高速发展的关键时期,若能实现走“清洁能源”这条道路,大力开发风能、太阳能,可有效的缓解能源供应紧张问题。本文就是在这种背景条件下,研究环保而无污染的风光互补发电技术,并应用于风光互补路灯上,起到了既节能又环保的效果。 由于风光互补路灯蓄电池充放电及灯具控制技术已日趋成熟,本文针对风光互补路灯中的离网式独立风光互补发电控制技术进行研究,主要完成以下两方面的研究工作。 首先,针对该系统离网式光伏发电系统光伏阵列输出电压、电流具有非线性,造成系统输出功率不易控制的问题,采用了“增量电导法”控制策略实现了对光伏发电系统输出最大功率点的跟踪控制,计算机仿真表明,该控制策略使系统输出功率达到了最优。 其次,针对该系统离网式风力发电机输出电压不稳定,输出功率不易控制的问题,采用转速双闭环控制方法和基于定步长转速跟踪搜索法的新型桨距角控制策略,计算机仿真表明,该控制策略实现了对风力发电机输出最大功率点跟踪控制,解决了发电机输出电压不稳定的问题,使输出的功率最优最好。 最后,对未来“独立风光互补发电技术”进行了展望。
[Abstract]:At present, our country is in the critical period of rapid economic development. If we can realize the road of "clean energy" and vigorously develop wind energy and solar energy, we can effectively alleviate the shortage of energy supply. Under this background, this paper studies the environment friendly and non-pollution complementary wind power generation technology, and applies it to the landscape complementary street lamp, which has the effect of saving energy and protecting environment. As the charging and discharging technology and lamp control technology of solar complementary street lamp have become more and more mature, this paper studies the off-grid independent wind complementary power generation control technology in the wind complementary street lamp, and mainly completes the following two aspects of research work. Firstly, the output voltage and current of the photovoltaic array of the off-grid photovoltaic system are nonlinear, which makes the output power of the system difficult to control. The "incremental conductance method" control strategy is used to realize the tracking control of the maximum output power point of the photovoltaic power generation system. The computer simulation shows that the control strategy makes the output power of the system optimal. Secondly, aiming at the problem that the output voltage of the off-grid wind turbine is unstable and the output power is not easy to control, a new pitch angle control strategy based on the fixed step speed tracking search method and the speed double closed loop control method is adopted. Computer simulation shows that the control strategy realizes the maximum power point tracking control of wind turbine output, solves the problem of generator output voltage instability, and makes the output power optimal. Finally, the future of independent wind complementary power generation technology is prospected.
【学位授予单位】：长春工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TM315;TM914.4;TU113.666
[Abstract]:At present, our country is in the critical period of rapid economic development. If we can realize the road of "clean energy" and vigorously develop wind energy and solar energy, we can effectively alleviate the shortage of energy supply. Under this background, this paper studies the environment friendly and non-pollution complementary wind power generation technology, and applies it to the landscape complementary street lamp, which has the effect of saving energy and protecting environment. As the charging and discharging technology and lamp control technology of solar complementary street lamp have become more and more mature, this paper studies the off-grid independent wind complementary power generation control technology in the wind complementary street lamp, and mainly completes the following two aspects of research work. Firstly, the output voltage and current of the photovoltaic array of the off-grid photovoltaic system are nonlinear, which makes the output power of the system difficult to control. The "incremental conductance method" control strategy is used to realize the tracking control of the maximum output power point of the photovoltaic power generation system. The computer simulation shows that the control strategy makes the output power of the system optimal. Secondly, aiming at the problem that the output voltage of the off-grid wind turbine is unstable and the output power is not easy to control, a new pitch angle control strategy based on the fixed step speed tracking search method and the speed double closed loop control method is adopted. Computer simulation shows that the control strategy realizes the maximum power point tracking control of wind turbine output, solves the problem of generator output voltage instability, and makes the output power optimal. Finally, the future of independent wind complementary power generation technology is prospected.
【学位授予单位】：长春工业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TM315;TM914.4;TU113.666
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