JP2012139092A - 変換器の制御方法 - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/145—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
- H02M7/155—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0012—Control circuits using digital or numerical techniques
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
- H02M7/53871—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current
- H02M7/53875—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output
- H02M7/53876—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration with automatic control of output voltage or current with analogue control of three-phase output based on synthesising a desired voltage vector via the selection of appropriate fundamental voltage vectors, and corresponding dwelling times
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Abstract
【解決手段】電気システム10の変換器12は、ある第1の最適化目標に関して決定されている変換器12の切換えシーケンスが第2のステップで変更されるように制御され、第2のステップでは切換えシーケンスはさらに切換えシーケンスの第1の最適化が基づいている仮定の結果である可能性がある磁束誤差を補正することにより最適化される。
【選択図】図1
Description
図面で使用されている参照符合とそれらの意味は参照符合のリストで要約形態でリストされている。原理的に、同一の部分には図面で同じ参照符合が設けられている。
Te=kr|Ψs|・|Ψr|sin(γ) (3)
ここでγは固定子磁束ベクトルΨsと回転子磁束ベクトルΨrの間の角度であり、krは定数である。マシン14が十分に磁化されるとき、基準固定子磁束ベクトルΨs,refの大きさは1puに等しい。その後、回転子磁束ベクトル|Ψr|と所定の基準トルクTe,refの所定の大きさでは、固定子と回転子の磁束ベクトルの間の所望の基準角度は次式のようになる。
角度(Ψs,ref)=角度(Ψr)+γref (5)
基準固定子磁束ベクトルΨs,ref)はその後モジュール34により、例えばモジュール34に記憶されている表から角度(Ψs,ref)における固定子磁束ベクトルΨs,refの大きさ(長さ)を読み出すことにより得られる。この表は全ての最適化されたパルスパターンについて予め計算されることができる。図16で、固定子磁束ベクトルの大きさの記憶された値は固定子磁束ベクトルΨsの軌跡62のコーナー点により示される。別の可能性は選択された切換えシーケンス38から、即ち時間にわたって切換えシーケンスの電圧を積分することによりオンラインで大きさを計算することである。
Ψs,err=Ψs、ref−Ψs (6)
式(6)から、(i)固定子磁束の基本成分と、(ii)固定子磁束のそれぞれの高調波内容との別々の評価を有する必要なく固定子磁束の誤差は直接的に計算されることができることが明白である。実時間で(i)と(ii)を評価する観察者スキームを有する必要がないことは本発明の方法の簡潔性と確実性を増加する。前述の方法はそれ故、最新技術の軌跡追跡方法と比較するとき産業応用により適切である。
Δtai=tai−tai,ref (9)
ここで、tai,refは相aにおけるパルスパターンのi番目の公称切換え時間を示している。切換え角度の対応する補正はΔδ=ωeΔtであり、ここでωeは0と1により制限され、Δtはpuで与えられることに注意する。
Δtreq=Ψs,err/0.5Vdc (11)
ここで、Ψs,errは(a,b,c)における磁束誤差ベクトルである。
Δtreq,i=Δtreq,i+sgn(Δu)(tnew−tnom) (12)
前述したようにtはpuで与えられ、Δuは[−1,1]にある。
Claims (15)
- 電気システム(10)の変換器(12)を制御する方法において、
(a)前記電気システム(10)の実際の状態に基づいて前記変換器(12)の切換えシーケンス(38)を決定し、
それにおいて前記切換えシーケンス(38)は前記変換器(12)の切換え転移(52)のシーケンスを含み、ここで各切換え転移(52)は転移時間を含んでおり、
(b)前記切換えシーケンスの切換え転移の少なくとも1つの転移時間を変更することによって前記切換えシーケンス(38)を変更し、それによって前記電気システムの評価された磁束と前記電気システムの基準磁束との間の差に基づく磁束誤差が最小にされ、
ここで前記評価された磁束は前記電気システムの前記実際の状態から決定されており、
(c)前記変更された切換えシーケンス(42)を前記変換器へ適用するステップを含んでいる方法。 - 前記ステップ(b)において、転移時間(54)は時間オフセットを前記転移時間に付加することにより変更され、
前記時間オフセットは前記磁束誤差は少なくとも部分的に補償されるように決定される請求項1記載の方法。 - 全体的な時間オフセットは磁束誤差から得られ、
前記全体的な時間オフセットは転移時間のための時間オフセットに分配され、それによって切換えシーケンス(38)における制約が考慮に入れられる請求項1または2記載の方法。 - 転移時間のための時間オフセットは時間オフセットが最小にされ、前記切換えシーケンス(38)における制約が考慮に入れられるように決定される請求項1乃至3のいずれか1項記載の方法。
- 前記切換えシーケンス(38)の前記第1の切換え転移のための時間オフセットはそれが可能な限り大きく、前記切換えシーケンス(38)における制約が考慮に入れられるように決定される請求項1乃至4のいずれか1項記載の方法。
- ステップ(b)において、等しい切換え時間を有する少なくとも2つの切換え転移は前記切換えシーケンス(38)が変更される前に前記切換えシーケンスへ挿入される請求項1乃至5のいずれか1項記載の方法。
- ステップ(a)において、前記切換えシーケンス(38)は予め計算された切換えシーケンスの表から発生される請求項1乃至6のいずれか1項記載の方法。
- 前記基準磁束は直交基準フレーム中のベクトルとして決定され、
それにおいて前記基準磁束ベクトルの角度は評価された回転子磁束ベクトルの角度と基準角度との和に基づいており、
前記基準角度は前記電気システム(10)の実際の状態から決定される請求項1乃至7のいずれか1項記載の方法。 - 前記基準角度は前記電気システムの前記実際の状態の評価された値と対応する基準値との間でフィードバック制御装置(66)により調節される請求項1乃至8のいずれか1項記載の方法。
- 前記磁束ベクトルの前記大きさは前記磁束ベクトルの前記角度と前記切換えシーケンス(38)から決定される請求項1乃至9のいずれか1項記載の方法。
- ステップ(a)において、前記切換えシーケンス(38)は前記変換器(12)の変調指数に基づいて選択され、前記変調指数は前記変換器(12)の入力電圧の振幅と前記変換器(12)の出力電圧の振幅との比を示しており、
前記変調指数は前記システムの前記実際の状態の評価された値と対応する基準値との間でフィードバック制御装置(70)により調節される請求項1乃至10のいずれか1項記載の方法。 - 少なくとも1つのプロセッサにより実行されるとき請求項1乃至11のいずれか1項記載の方法の各ステップを実行するように構成されている変換器を制御するためのプログラムエレメント。
- 請求項12記載のプログラムエレメントが記憶されているコンピュータの読取り可能な媒体。
- 請求項1乃至11のいずれか1項記載の方法を実行するように構成されている変換器を制御するための制御装置(18)。
- スイッチを備え、少なくとも1相に対して出力電圧を発生するように構成されている変換器回路(16)と、
前記スイッチを備え、請求項1乃至11のいずれか1項記載の方法を実行するように構成されている制御装置(18)とを具備している変換器。
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EP10196987.1 | 2010-12-24 | ||
EP10196987.1A EP2469692B1 (en) | 2010-12-24 | 2010-12-24 | Method for controlling a converter |
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BRPI1107034B1 (pt) | 2020-10-20 |
US20120161685A1 (en) | 2012-06-28 |
KR20120073151A (ko) | 2012-07-04 |
RU2011152831A (ru) | 2013-06-27 |
JP6138414B2 (ja) | 2017-05-31 |
CN102545588A (zh) | 2012-07-04 |
RU2578165C2 (ru) | 2016-03-20 |
US8766570B2 (en) | 2014-07-01 |
EP2469692B1 (en) | 2019-06-12 |
EP2469692A1 (en) | 2012-06-27 |
KR101811884B1 (ko) | 2017-12-22 |
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