CONTROLLER AND CONTROL SYSTEM
To provide a controller and a control system which can suppress decrease of a damping effect for oscillation of filter capacitor voltage.SOLUTION: A controller controls an inverter which drives an AC motor with DC as an input to be output from an LC filter including a filter reactor and a filter cap...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a controller and a control system which can suppress decrease of a damping effect for oscillation of filter capacitor voltage.SOLUTION: A controller controls an inverter which drives an AC motor with DC as an input to be output from an LC filter including a filter reactor and a filter capacitor. The controller is provided with a compensation control unit which performs damping compensation control which compensates for an output frequency of the inverter by sampling an oscillation component of voltage of the filter capacitor. The compensation control unit adjusts a gain of the damping compensation control depending on flux information of the AC motor. The control system is provided with the controller, the LC filter, and the inverter.SELECTED DRAWING: Figure 1
【課題】フィルタコンデンサ電圧の振動に対するダンピング効果の低下を抑制可能な制御装置及び制御システムを提供すること。【解決手段】フィルタリアクトルとフィルタコンデンサとを含むＬＣフィルタから出力される直流を入力として交流電動機を駆動するインバータを制御する制御装置であって、前記フィルタコンデンサの電圧の振動成分を抽出して前記インバータの出力周波数を補償するダンピング補償制御を行う補償制御部を備え、前記補償制御部は、前記ダンピング補償制御のゲインを前記交流電動機の磁束情報に応じて調整する、制御装置。前記制御装置と、前記ＬＣフィルタと、前記インバータと、を備える、制御システム。【選択図】図１ |
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