在对电子膨胀阀的特性及制冷系统的运行规律的认真分析基础之上，设计了变频压缩机的精准在线控制。
Basing on analyzing the characteristic of EEV and running rule of refrigerating system in detail, it designs precise online control of inverter compressor.
多联空调机组控制系统是将变频模块、变频压缩机和制冷系统有机集成一体的控制单元，其技术核心是变频控制模块。
The control system of multi-connected air-condition unit is the control unit which combines a variable frequency module, a variable frequency motor of compressor and a system of refrigeration.
因此，对往复式压缩机系统进行变频技术改造还是比较有意义。
Therefore, the reciprocating compressors system frequency conversion technology reform still have meaning.
空气压缩机恒压供气智能控制系统是由变频器、压力传感器、可编程控制器(PLC)控制单元、软件控制单元等组成。
Air compressor constant pressure gas supply intelligence control system is by the transducer, pressure sensor, programmable controller (PLC) control unit, software control unit etc.
在图形法拟合的基础上，借鉴成熟的对实际过热度进行修正的方法，建立了变频空调器压缩机模型。
With a widely used method for actual superheat temperature correction, the inverter air-conditioner compressor model is built up on the basis of performance curves fitting.
当变频器及PLC发生故障时，自动切换到原软启动柜工频电源运行，以保证压缩机的正常工作。
When frequency converter and PLC is at fault, automatic switch to the original soft start work frequency power operation, ark to ensure the normal work of the compressor.
目前变频空调压缩机大多采用感应电动机驱动，而感应电动机效率低，变频控制器比较复杂。
Presently, induction motor is mostly used for frequency-change air conditioner compressor, but it has such drawbacks as low efficiency and complicated controller.
压缩机控制系统采用变频控制，其频率给定值由非线性环节来决定。
The control system of the compressor adopts frequency conversion to control, its frequency setting value is decided by the non-linear link.
介绍了空调系统中的压缩机几种能量调节技术：多级控制系统、变频技术和数码涡旋技术。
This paper introduces three kinds of energy modifying technology, multi-control system, frequency conversion technology and digital scroll technology.
变频空调中压缩机控制部分软、硬件的结构和实现方法。
Both the hardware and software of controlling the compressor are also presented par2 ticularly.
天然气变频恒压供气系统具有变频涡旋压缩机的特点和优点，完全满足设计要求。
Equipressure natural gas supply system with frequency conversion possesses the feature and advantages of the scroll compressor with frequency conversion and satisfies the design requirements.
介绍了南京炼油厂变频调速技术用于焦化富气离心压缩机高压电动机系统的情况。
The application of frequency governing technique in high voltage motor system of centrifugal compres sor for coker rich oil gas was introduced.
介绍变频空调采用无传感器无刷直流电机作为压缩机的优越性，反电势检测的基本原理以及起动方法。
This paper analyzes the advantage of using sensor2 less brushless DC motor in fuzzy conversing air - condition , the back EMF method and the start technique.
介绍变频空调采用无传感器无刷直流电机作为压缩机的优越性，反电势检测的基本原理以及起动方法。
This paper analyzes the advantage of using sensor2 less brushless DC motor in fuzzy conversing air - condition , the back EMF method and the start technique.
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