JP6392421B2 - 無効電力補償装置及びその制御方法 - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
- H02J3/1857—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters wherein such bridge converter is a multilevel converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1864—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein the stepless control of reactive power is obtained by at least one reactive element connected in series with a semiconductor switch
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
- H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
- H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
-
- 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
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
-
- 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
- H02M7/483—Converters with outputs that each can have more than two voltages levels
- H02M7/49—Combination of the output voltage waveforms of a plurality of converters
-
- 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
- H02M1/0048—Circuits or arrangements for reducing losses
- H02M1/0054—Transistor switching losses
-
- 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
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/325—Means for protecting converters other than automatic disconnection with means for allowing continuous operation despite a fault, i.e. fault tolerant converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/10—Flexible AC transmission systems [FACTS]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/20—Active power filtering [APF]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/22—Flexible AC transmission systems [FACTS] or power factor or reactive power compensating or correcting units
Description
Ncell=n+α
MI=Vac/Vdc
Claims (20)
- 電力系統に連系され、前記電力系統の無効電力を補償するための無効電力補償装置において、
それぞれ複数のセルを含む少なくとも一つ以上の相クラスタと、
前記少なくとも一つ以上の相クラスタを制御する制御部と、を含み、
前記制御部は、
前記少なくとも一つ以上の相クラスタのうち特定相クラスタ内の少なくとも一つのセルが脱落する場合、変調インデックスを用いて前記特定相クラスタを除いた残りの相クラスタ内のセルの電圧を調節するように制御することを特徴とする、無効電力補償装置。 - 前記変調インデックスは、次の式により算出される、請求項1に記載の無効電力補償装置。
MI=Vac/Vdc
ただし、MIは変調インデックスを表し、Vacは前記無効電力補償装置で運用可能なピーク電圧を表し、Vdcは前記少なくとも一つ以上の相クラスタに含まれたセルのうち使用可能な健全なセルの電圧の和を表す。 - 前記複数のセルは、前記無効電力補償装置で運用可能なピーク電圧を生成できるn個のセルと、脱落を考慮した余分のセルを含む、請求項1又は2に記載の無効電力補償装置。
- 前記制御部は、前記余分のセルだけ脱落しても、前記少なくとも一つ以上の相クラスタ間の電圧均衡が維持されるように制御する、請求項3に記載の無効電力補償装置。
- 前記制御部は、前記少なくとも一つ以上の相クラスタそれぞれに対する変調インデックスを算出し、前記算出された変調インデックスが同一である場合、前記少なくとも一つ以上の相クラスタに含まれたセルを用いて前記電力系統の無効電力を補償するように制御する、請求項1〜4のいずれか一項に記載の無効電力補償装置。
- 前記制御部は、前記算出された変調インデックスが同一でない場合、前記少なくとも一つ以上の相クラスタごとにオフセット値を算出し、前記算出されたオフセット値を前記残りの相クラスタそれぞれのセルの電圧に反映させる、請求項5に記載の無効電力補償装置。
- 前記制御部は、前記少なくとも一つ以上の相クラスタそれぞれの健全なセルの個数に基づいて健全なセルの個数が最小である相クラスタを決定し、前記決定された相クラスタのセルの最小個数に基づいて前記少なくとも一つ以上の相クラスタごとにオフセット値を算出する、請求項1〜6のいずれか一項に記載の無効電力補償装置。
- 前記制御部は、前記少なくとも一つ以上の相クラスタそれぞれにおいて健全なセルの個数から前記決定された相クラスタのセルの最小個数を減算し、
前記減算結果を、前記少なくとも一つ以上の相クラスタそれぞれに含まれたセルの総個数で分け、
前記分けられた結果を各セルの電圧と乗じて、前記少なくとも一つ以上の相クラスタそれぞれのオフセット値を算出する、請求項7に記載の無効電力補償装置。 - 前記制御部は、前記少なくとも一つ以上の相クラスタそれぞれのセルの電圧から前記少なくとも一つ以上の相クラスタごとに算出されたオフセット値を減算する、請求項6〜8のいずれか一項に記載の無効電力補償装置。
- 前記制御部は、前記算出されたオフセット値を用いて、前記残りの相クラスタそれぞれのセル電圧が低くなるように制御する、請求項6〜9のいずれか一項に記載の無効電力補償装置。
- 前記制御部は、前記算出されたオフセット値を用いて、前記少なくとも一つ以上の相クラスタを制御するための基準信号を生成する、請求項6〜10のいずれか一項に記載の無効電力補償装置。
- 前記制御部は、前記基準信号に基づいて制御信号を生成し、
前記制御信号に基づいて前記少なくとも一つ以上の相クラスタそれぞれを制御するための第1〜第3スイッチング制御信号をそれぞれ生成する第1相〜第3相クラスタ制御器を更に含む、請求項11に記載の無効電力補償装置。 - 電力系統に連系され、前記電力系統の無効電力を補償するための無効電力補償装置の制御方法において、
それぞれ複数のセルを含む少なくとも一つ以上の相クラスタのうち特定相クラスタ内の少なくとも一つのセルが脱落する場合、変調インデックスを用いて、前記特定相クラスタを除いた残りの相クラスタ内のセルの電圧を調節するステップと、
前記特定相クラスタ内のセル電圧と前記調節された残りの相クラスタ内のセル電圧を用いて、前記少なくとも一つ以上の相クラスタを制御するための制御信号を生成するステップと、を含むことを特徴とする、無効電力補償装置の制御方法。 - 前記複数のセルは、前記無効電力補償装置で運用可能なピーク電圧を生成できるn個のセルと、脱落を考慮した余分のセルを含む、請求項13に記載の無効電力補償装置の制御方法。
- 前記余分のセルだけ脱落しても、前記少なくとも一つ以上の相クラスタ間の電圧均衡が維持されるように制御するステップを更に含む、請求項14に記載の無効電力補償装置の制御方法。
- 前記少なくとも一つ以上の相クラスタそれぞれに対する変調インデックスを算出するステップと、
前記算出された変調インデックスが同一である場合、前記少なくとも一つ以上の相クラスタに含まれたセルを用いて無効電力を補償するように制御するステップを更に含む、請求項13〜15のいずれか一項に記載の無効電力補償装置の制御方法。 - 前記算出された変調インデックスが同一でない場合、前記少なくとも一つ以上の相クラスタそれぞれの健全なセルの個数に基づいて健全なセルの個数が最小である相クラスタを決定するステップと、
前記決定された相クラスタのセルの最小個数に基づいて前記少なくとも一つ以上の相クラスタごとにオフセット値を算出するステップと、
前記算出されたオフセット値を用いて、前記残りの相クラスタそれぞれのセル電圧を低く調節するステップと、を更に含む、請求項16に記載の無効電力補償装置の制御方法。 - 前記オフセット値を算出するステップは、
前記少なくとも一つ以上の相クラスタそれぞれにおいて健全なセルの個数から前記決定された相クラスタのセルの最小個数を減算するステップと、
前記減算結果を、前記少なくとも一つ以上の相クラスタそれぞれに含まれたセルの総個数で分けるステップと、
前記分けられた結果を各セルの電圧と乗じて、前記少なくとも一つ以上の相クラスタそれぞれでのオフセット値を算出するステップと、を含む、請求項17に記載の無効電力補償装置の制御方法。 - 前記算出されたオフセット値を用いて、前記少なくとも一つ以上の相クラスタを制御するための基準信号を生成するステップを更に含む、請求項17又は18に記載の無効電力補償装置の制御方法。
- 前記基準信号に基づいて前記制御信号を生成するステップと、
前記制御信号に基づいて前記少なくとも一つ以上の相クラスタそれぞれを制御するための第1〜第3スイッチング制御信号をそれぞれ生成するステップと、を更に含む、請求項19に記載の無効電力補償装置の制御方法。
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KR1020160164802A KR20180064670A (ko) | 2016-12-06 | 2016-12-06 | 무효전력보상장치 및 그 제어 방법 |
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US (1) | US9991712B1 (ja) |
EP (1) | EP3334001B1 (ja) |
JP (1) | JP6392421B2 (ja) |
KR (1) | KR20180064670A (ja) |
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CN105811794B (zh) * | 2016-05-06 | 2018-03-30 | 上海海事大学 | 多电平逆变器的参考电压信号重构的容错控制方法 |
KR101923690B1 (ko) * | 2016-11-11 | 2018-11-29 | 엘에스산전 주식회사 | 전력보상장치의 서브모듈성능시험을 위한 합성시험회로 및 그 시험방법 |
US11121551B2 (en) | 2018-08-23 | 2021-09-14 | Smart Wires Inc. | Modular time synchronized injection modules |
WO2020136698A1 (ja) * | 2018-12-25 | 2020-07-02 | 三菱電機株式会社 | 電力変換装置 |
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US9190932B2 (en) * | 2012-08-07 | 2015-11-17 | Abb Ab | Method and device for controlling a multilevel converter |
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JP6012387B2 (ja) * | 2012-10-12 | 2016-10-25 | 株式会社日立製作所 | 電力変換装置及び電力変換方法 |
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2016
- 2016-12-06 KR KR1020160164802A patent/KR20180064670A/ko unknown
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2017
- 2017-07-04 EP EP17179557.8A patent/EP3334001B1/en active Active
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US9991712B1 (en) | 2018-06-05 |
CN108155654A (zh) | 2018-06-12 |
KR20180064670A (ko) | 2018-06-15 |
JP2018093701A (ja) | 2018-06-14 |
US20180159328A1 (en) | 2018-06-07 |
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EP3334001A1 (en) | 2018-06-13 |
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