运动控制引擎与数字PFC集成在空调应用中实现高效率

Proceedings of the 2006 IEEE International Symposium on Electronics and the Environment, 2006. Pub Date : 2006-05-08 DOI:10.1109/ISEE.2006.1650047

A. Murray, Yong Li

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引用次数: 9

摘要

永磁电机通常用于家用电器的交流变频控制空调系统。除实现高效用电外，减少室外机压缩机的噪声和振动也是一项重要任务。由于密封压缩机的结构限制，还要求消除霍尔效应传感器等电机位置传感器。这些要求自然导致制造商采用无正弦传感器的永磁电机控制。今天，大多数空调单元都基于32位RISC微控制器来实现压缩机电机的控制。在室外机空调中，不仅压缩机采用交流逆变器，风机也采用交流逆变器。风扇也是基于PM电机，其控制是基于霍尔效应传感器在今天的系统。空调的一定功率范围也需要功率因数控制，这通常是通过单独的模拟PFC控制IC实现的。本文讨论了一种基于硬件计算的空调应用专用控制器，该控制器可以实现压缩机和风扇的无正弦传感器PM电机控制，以及单个单片硅平台内的数字PFC。采用嵌入式运动控制引擎(MCE)实现了无传感器场定向控制(FOC)，使得两个电机场定向控制和数字PFC相结合可以获得计算能力

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Motion Control Engine Achieves High Efficiency with Digital PFC Integration in Air Conditioner Applications

Permanent magnet motors are commonly used in AC inverter controlled air conditioner systems for home appliances. Acoustic noise and vibration reduction in the outdoor unit compressor is an important task, in addition to attaining high efficiency power usage. It is also required to eliminate motor position sensors such as Hall effect sensors due to the structural constraint of sealed compressors. These requirements naturally lead manufacturers to incorporate sinusoidal sensor-less PM motor control. Today, most air conditioner units are based on 32 bit RISC microcontrollers to achieve compressor motor control. In outdoor unit air conditioners, not only does the compressor use an AC inverter but also the fan uses an AC inverter. The fan is also based on a PM motor and its control is based on Hall effect sensors in today's system. Power factor control is also required for a certain power range of air conditioner, which has normally been implemented by separate analog PFC control IC. This paper discusses a hardware computation-based dedicated controller for air conditioner applications that enables sinusoidal sensorless PM motor control for both compressor and fan, and digital PFC within a single monolithic silicon platform. Sensorless field oriented control (FOC) is implemented using an embedded motion control engine (MCE) so that computation power can be attained with two motor FOC controls and digital PFC combined

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Proceedings of the 2006 IEEE International Symposium on Electronics and the Environment, 2006.

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