【正文】
y will not run an algorithm efficiently. What is needed is the capability to run multiple singlecycle MAC operations with a single setup. Another attribute required for effective motor control is the system integration provided by the controller. In addition to a high level of processing power, new generations of DSPbased controllers, such as the Texas Instrument 150MIPS TMS320C28x digital signal controller, provide a level of peripheral integration and ease of use that pares favorably to MCUs. Algorithms Many control algorithms are developed initially in floating point versions, and then ported to fixedpoint machines. Such scaling has traditionally been one of the roadblocks to implementers. Often, this methodology presents an impediment to system designers that dissuade them from implementing advanced control strategies. Fortunately, modern controllers address this challenge with tools such as IQMath that simplify development of algorithms to a point where programmers can convert floatingpoint algorithms to fixedpoint algorithms in a matter of minutes, rather than hours and days without such tools. 。. By keeping the fluxes orthogonal, it bees possible to control the torque much more effectively. With vector control, it is often possible to resize the motor, which enables for further cost savings, because a smaller motor costs less to buy. In addition, the properly sized motor will run more efficiently, saving substantial amounts of energy. Mathematical processing Since a realtime processor must run an algorithm in a short amount of time (typically 50 ms), such an algorithm must be run on a processor that is particularly well suited to mathematical putation. A DSPbased controller is ideally suited to this task and can do the job very effectively and in real time. In addition, the DSP39。 這樣的比例 是 歷來的障礙之 一 的 執(zhí)行者。 現(xiàn)在需要的是能夠運(yùn)行一個(gè)能 安裝多個(gè)單周期 的 MAC 操作。 持續(xù)乘和累加 執(zhí)行的能力在持續(xù)的基礎(chǔ)上計(jì)算,是電機(jī)控制設(shè)計(jì)特別感興趣 的 。 一個(gè)功率因數(shù)校正可即時(shí) 的 推 行作為數(shù)字信號(hào) 的 處理器,運(yùn)行的主電機(jī)矢量 的 控制算法的輔助功能,從而消