JP2006031654A - 1次遅れ特性をもつ制御対象の制御方法 - Google Patents
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Abstract
【解決手段】 内部モデル制御器2の分母多項式は複素平面の虚軸上あるいはこの近傍に少なくとも1個の零点を持ち、かつ、内部モデル制御器の分母多項式の最高次パラメータを1とするとき、内部モデル制御器の(次数+1)個のすべての分子多項式パラメータに個別的設計自由度をもたせることにより、課題を解決した。
【選択図】 図1
Description
(1)岩路善尚・奥山俊昭:「正弦波内部モデルを用いた電流制御器の検討」、平成7年電気学会東京支部茨城支所研究発表会講演予稿集、pp.135−136(1995−11)
(2)福田昭治・依田武仁:「正弦波内部モデルを用いたアクティブフィルタの電流制御」、電気学会論文誌D、Vol.120,No.12,pp.1440−1446(2000−12)
(3)福田昭治・今村良太:「PIS補償器を用いた系統インターフェースコンバータの電流制御」、電気学会論文誌D、Vol,124,No.1,pp.131−137(2004−1)
しかし、従来の内部モデル制御器では、フィードバック制御系は必ずしも安定化できず、仮に安定化できたしたとしても、所要の安定度を確保できるとは限らなかった。
(4)桑田龍一:「周期性外乱抑圧用制御装置」、特許公開平11−305802(出願日:1998年4月16日)
デル制御器の分子多項式は、パラメータの個別的設計自由度を利用して、(d)式に基づく(10)式に従い、以下のように、決定する。
答が得られていることもわかる。このときのフィードバック制御系の安定度を決定づけるGc(s)極は、(13)式のH(s)で指定されている。
2 (本発明の)内部モデル制御器
3 自動設計部
4 フィードフォワード制御器
5 変換部
6 切替え用制御器
7 (従来の)内部モデル制御器
8 (従来の)内部モデル制御器
Claims (5)
- 支配的伝達特性が近似的に1次遅れ有理伝達関数で表現される制御対象に対し、制御対象からの制御量と基準入力あるいはこれに準じた指令信号との偏差を制御器入力とし、制御器出力を制御対象への直接的あるいは間接的な操作量とし、かつ制御器伝達特性が制御対象より高次の分母多項式と分子多項式からなる有理伝達関数で記述される高次の制御器でフィードバック制御を行なう、1次遅れ制御対象の制御方法であって、
該高次制御器の分母多項式は複素平面の虚軸上あるいはこの近傍に少なくとも1個の零点を持ち、
かつ、該高次制御器の分母多項式の最高次パラメータを1とするとき、該高次制御器の(次数+1)個のすべての分子多項式パラメータが個別的設計自由度をもつことを特徴とする1次遅れ制御対象の制御方法。 - 該フルビッツ多項式の第n次パラメータを、基準入力あるいはこれに準じた指令信号から制御量に至るフィードバック制御系の帯域と概ね等しくなるように選定したことを特徴とする請求項2記載の1次遅れ制御対象の制御方法。
- 該高次制御器のパラメータを、動作状態あるいは制御状態に応じて、可変するようにしたことを特徴とする請求項1記載、請求項2記載の1次遅れ制御対象の制御方法。
- 該高次制御器を離散時間的に実現したことを特徴とする請求項1記載、請求項2記載、請求項4記載の1次遅れ制御対象の制御方法。
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140084780A1 (en) * | 2012-09-25 | 2014-03-27 | Ube Material Industries, Ltd. | Blue light-emitting phosphor and light-emitting device using the blue light-emitting phosphor |
JP2018166396A (ja) * | 2017-03-28 | 2018-10-25 | エルエス産電株式会社Lsis Co., Ltd. | 電流制御装置 |
CN112148056A (zh) * | 2020-09-22 | 2020-12-29 | 江苏方天电力技术有限公司 | 一种火电机组的功率调节方法、装置和系统 |
CN114384804A (zh) * | 2022-01-12 | 2022-04-22 | 中国人民解放军国防科技大学 | 一种当跟踪指令为零时抵消闭环系统传递函数零点影响的方法 |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140084780A1 (en) * | 2012-09-25 | 2014-03-27 | Ube Material Industries, Ltd. | Blue light-emitting phosphor and light-emitting device using the blue light-emitting phosphor |
US9011718B2 (en) * | 2012-09-25 | 2015-04-21 | Ube Material Industries, Ltd. | Blue light-emitting phosphor and light-emitting device using the blue light-emitting phosphor |
JP2018166396A (ja) * | 2017-03-28 | 2018-10-25 | エルエス産電株式会社Lsis Co., Ltd. | 電流制御装置 |
US10847334B2 (en) | 2017-03-28 | 2020-11-24 | Lsis Co., Ltd. | Apparatus and method for controlling current |
CN112148056A (zh) * | 2020-09-22 | 2020-12-29 | 江苏方天电力技术有限公司 | 一种火电机组的功率调节方法、装置和系统 |
CN114384804A (zh) * | 2022-01-12 | 2022-04-22 | 中国人民解放军国防科技大学 | 一种当跟踪指令为零时抵消闭环系统传递函数零点影响的方法 |
CN114384804B (zh) * | 2022-01-12 | 2023-11-21 | 中国人民解放军国防科技大学 | 一种当跟踪指令为零时抵消闭环系统传递函数零点影响的方法 |
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