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1、单相逆变器的软件编程设计摘要逆变电源技术是电力电子技术的重要组成部分。逆变电源是一种采用开关方式的电能变换装置, 它从交流或直流输人获得稳压、稳频的交流输出。衡量逆变电源性能高低的主要指标是输出电压的品质，输出电压品质由以下特性来衡量: 稳压特性、稳频特性、波形特性、动态特性、电压调制特性。逆变电源之所以能得到广泛应用，是因为它能实现以下功能：逆变电源能将直流电转换为交流电；变频，逆变电源能将市电转换为用户所需频率的交流电；变相，逆变电源能将单相交流电转换为三相交流电, 也能将二相交流电转换为单相交流电。逆变电源出现于电力电子技术飞速发展的20世纪60年代，逆变电源的发展是和电力电子器件的发展
2、联系在一起的，器件的发展带动着逆变电源的发展。最初的逆变电源采用晶闸管（SCR）作为逆变器的开关器件，称为可控硅逆变电源。随着半导体技术和变流技术的发展，自关断的电力电子器件脱颖而出，相继出现了电力晶体管（GTR）、可关断晶闸管（GTO）、功率场效应晶体管（MOSFET）、绝缘栅双极型晶体管(IGBT)等等。自关断器件在逆变器中的应用大大提高了逆变电源的性能。由于自关断器件的使用，使得开关频率得以提高，从而逆变桥输出电压中低次谐波的频率比较高，使输出滤波器的尺寸得以减小，而且对非线性负载的适应性得以提高。近十年来发展起来的新型电源控制技术，目前仍在不断地完善和发展之中，使逆变电源的性能有了质的
3、飞跃。本次是基于MOSFET管构建的逆变器软件编程设计，使用的核心器件为单片机AT89S52及功率驱动集成芯片IR2110。本课题使用单片机AT89S52通过编程产生50Hz的准正弦方波，为逆变器提供输出功率信号，去推动MOS功率管。本次设计采用的电路拓扑为单相全桥逆变电路，用两片IR2110驱动全桥电路，每片分别驱动上下MOSFET，其耐压为500V。IR2110用于驱动全桥逆变器用以控制MOSFET的通断，在IR2110的外围电路使用二极管和齐纳二极管防止MOSFET的同时导通而击穿。美国IR公司生产的IR2110驱动器，兼有光耦隔离和电磁隔离的优点，是中小功率变换装置中驱动器件的首选。该
4、芯片具有驱动电流大，速度快，外围电路简单，可驱动母线电压高达500V的全桥，对输入信号要求低等优良性能。关键词：逆变电源、晶体管（MOSFET）、驱动芯片IR2110、单片机AT89S52Single phase inverter software programming designAbstractInverter power supply power electronic technology is an important part of the technology. Inverter power supply is a way of using switch power transf
5、ormation device, it from ac or dc input voltage, frequency of stability for ac output. Measure the performance of high and low inverter power supply main index is the quality of the output voltage, output voltage quality by the following characteristics: to measure voltage stability frequency charac
6、teristics, characteristics and waveform characteristics, dynamic characteristics, voltage regulation characteristics. The inverter power supply can be widely applied, because it can realize the following functions: inverter power supply can convert alternating current, direct current Frequency conve
7、rsion, inverter power supply for the user to convert the utility for the ac frequency; In disguised form, inverter power supply single-phase ac conversion can be for three-phase ac, also can two phase ac conversion for single-phase ac. Inverter power supply appeared in power electronic technology ra
8、pid development of the 1960 s, inverter power supply is the development of the power electronics device and the development of the contact together, the development of the device drives the development of inverter power supply. The original inverter power supply using thyristor (SCR) as inverter swi
9、tch device, called the thyristor inverter power supply. With semiconductor technology and variable flow technology development, since shut off the power electronic devices, have appeared out power transistor (GTR), can shut off the thyristor (GTO), power field effect transistors MOSFET), insulation
10、(gate bipolar type transistor (IGBT), and so on. Since the shutoff device in the application of inverter can greatly improve the performance of the inverter power supply. Because the shutoff device, making the switch frequency of use has been improved, and thus output voltage inverter bridge low tim
11、e harmonic frequency is higher, to make the output filter size, and was reduced to the adaptability of the nonlinear load can be increased. Nearly 10 years to develop the new power up control technology, is still in continuously improve and developing, make the performance of the inverter power supp
12、ly with a qualitative leap. This is based on the construction of the MOSFET inverter software programming design, use the core device for monolithic integrated circuit AT89S52 and power drive IR2110 integrated chips. This topic use monolithic integrated circuit AT89S52 through the programming produc
13、e 50 Hz ac square-wave, must sine for inverter power output signal, provide to promote MOS power tube. This design USES the circuit topology for single-phase bridge inverter circuits, with two pieces of IR2110 drive the whole bridge circuit, every piece of drive up and down the MOSFET respectively,
14、compression for 500 V. IR2110 used to drive the whole bridge to control the MOSFET inverter was used to break in the periphery of the circuit, IR2110 using diode and zener diodes prevent MOSFET and at the same time conduction and breakdown. The United States IR company produces the IR2110 drive, wit
15、h light coupling isolation and electromagnetic isolated advantages, is small and medium-sized power transformation in the device of choice for the driving device. The chip has drive current, quick speed, simple, can drive buffer circuit for bus voltage up to 500 V of the whole bridge of the input si
16、gnal, the excellent properties of low requirements. Key words：Inverter power supply、 transistor（MOSFET）、Drive chip IR2110、AT89S52 SCM引 言奇数页、偶数页的页首有不同的要求，要自己设置现代电力电子技术的迅猛发展，使逆变电源广泛应用于各个领域，同时对逆变电源输出电压波形质量提出了越来越高的要求。逆变电源输出波形质量包括稳态精度高、动态性能好以及负载适应性强。这种结构简单动静态性能优良和负载适应性强的逆变电源，一直是研究者在逆变电源方面追求的目标。逆变电源是一种采用电力电子技术进行电能变换的装置，它从交流或直流输入获得稳压恒频的交流输出。逆变电源技术是一门综合性的争业技术，它横跨电力、电子、微处理器及自动控制等多学科领域，是目前电力电子产业和科研的热点之一
