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Method and apparatus for instability compensation of V/Hz pulse width modulation inverter-fed induction motor drives
Method and apparatus for instability compensation of V/Hz pulse width modulation inverter-fed induction motor drives
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机译：V / Hz脉宽调制逆变器供电的感应电动机驱动器的不稳定性补偿方法和装置
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摘要
Index signals which represent the degree of instability in a three- phase induction motor system is derived by using phase current signals which are usually already available in V/Hz PWM inverters for other purposes. Proportional integration compensators, which may be implemented in software, process these index signals and generate frequency and/or voltage adjustments to the V/Hz controller in order to compensate for speed instability in the system. The compensation algorithm is robust to system changes and is also effective to improve acceleration and deceleration performance.
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