WO2018116823A1 - 自然エネルギー発電システム、無効電力コントローラまたは自然エネルギー発電システムの制御方法 - Google Patents

自然エネルギー発電システム、無効電力コントローラまたは自然エネルギー発電システムの制御方法 Download PDF

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Publication number
WO2018116823A1
WO2018116823A1 PCT/JP2017/043736 JP2017043736W WO2018116823A1 WO 2018116823 A1 WO2018116823 A1 WO 2018116823A1 JP 2017043736 W JP2017043736 W JP 2017043736W WO 2018116823 A1 WO2018116823 A1 WO 2018116823A1
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WIPO (PCT)
Prior art keywords
power
reactive power
reactive
power generation
generation system
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Ceased
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PCT/JP2017/043736
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English (en)
French (fr)
Japanese (ja)
Inventor
正親 中谷
近藤　真一
智道 伊藤
満 佐伯
坂本　潔
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Hitachi Ltd
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Hitachi Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J3/12—Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load
    • H02J3/16—Arrangements for adjusting voltage in AC networks by changing a characteristic of the network load by adjustment of reactive power
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—ELECTRIC POWER NETWORKS; 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
    • H02J3/38—Arrangements for feeding a single network from two or more generators or sources in parallel; Arrangements for feeding already energised networks from additional generators or sources in parallel
    • 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
    • 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
    • Y02E40/30—Reactive power compensation

Definitions

  • Patent Document 1 discloses a method for controlling a power converter so as to detect the output of the power converter and compensate for the voltage fluctuation at the interconnection point caused by the effective power output of the power converter. .
  • R L and X L represent the resistance component and reactance component of the impedance of the interconnection line, respectively.
  • a predetermined power factor command value PF P / ⁇ (P 2 + Q 2 ) at the interconnection point is corrected by using a power factor correction amount set for each wind power generation system.
  • a method for determining a power factor command value for each wind power generation system is disclosed.
  • P and Q represent the active power output and reactive power output of the wind power generation system, respectively.
  • the power factor correction amount is determined based on the reactance component existing between each wind power generation system and the interconnection point.
  • a natural energy power generation system of the present invention includes a power generation device that generates power by receiving natural energy, a power converter electrically connected to the power generation device and a power system, and the power converter.
  • An interconnection transformer disposed between the power grids, and a reactive power controller that generates a reactive power command output by the power converter, the reactive power controller comprising: the power converter and the power grid.
  • the reactive power command is determined such that a sum of a fluctuation component due to active power at the interconnection point voltage and a fluctuation component due to reactive power at the interconnection point voltage is substantially constant.
  • FIG. It is a figure which shows the whole structure of the wind power generation system in Example 1.
  • FIG. It is a figure which shows the structure of the reactive power controller in Example 1.
  • FIG. It is a graph for demonstrating the voltage fluctuation of the connection point in Example 1, (A) is the time change of the active power of a connection point, (B) is the time change of the current of a connection point, (C) is The time change of the reactive power output of the power converter, (D) is the time change of the voltage fluctuation at the interconnection point.
  • the wind power generation system 1 includes a wind turbine 11, a generator 12 connected to the wind turbine 11 via a main shaft (and a speed increaser as necessary), and a side of the generator 12 opposite to the wind turbine 11 side.
  • a power converter 13 that is electrically connected to adjust the generated power of the generator 11, a sensor 14 that is installed between the power converter 13 and the interconnection transformer 2, an active power controller 15, and a reactive power controller 16. Composed. Wind energy received by the wind turbine 11 is converted into electrical energy by the generator 12 and sent to the power converter 13.
  • RL is a resistance value determined by the line type and length of the interconnection line, although it changes somewhat with temperature change, is substantially constant, and V PCC also suppresses voltage fluctuation within a range of several percent. It is usually necessary and still considered to be substantially constant. Therefore, from the equations (A), (D), and (5) in FIG. 3, the voltage fluctuation component ⁇ V PCC 1 has a waveform that is substantially proportional to the active power output P CON .
  • the voltage fluctuation ⁇ V PCC is a waveform obtained by combining the voltage fluctuation components ⁇ V PCC 1 and ⁇ V PCC 2.
  • Voltage control amount of the interconnection point 5 Y is a (7) the second term of ((X L / V PCC) Q CON), obtained by substituting (9) to (11) below.
  • the voltage control amount Y under the conditions (I) to (III) is shown in the equations (12) to (13) and FIG. 5 (B).
  • the reactive power command determination unit 162b of the reactive power controller 16b determines the total reactive power output command Q REF_TOTAL.
  • the equation (8) in the first embodiment corresponds to a plurality of wind power generation systems 1 and a plurality of interconnection transformers 2 as shown in the equation (20). A modified function is used.
  • the first term of the equation (20) is the reactive power obtained from the impedance (R L , X L ) of the interconnection line 3 and the active power (P CON_A + P CON_B + P CON_C + P CON_D ) flowing through the interconnection line 3. It is a directive.
  • the second and third terms are derived from the primary and secondary reactances ( XTR1_I , XTR2_I ) of the interconnection transformer 2I and the current flowing through the primary and secondary sides of the interconnection transformer 2I. This is a reactive power command obtained from (I CON_A + I CON_B , (I CON_A + I CON_B ) / ⁇ I ).
  • the reactive power distribution determination unit 169 of the reactive power controller 16b shown in FIG. 9 sends the reactive power commands Q REF (Q REF_A , Q REF_B , Q REF_C , Q ) to the individual wind power generation systems 1 from the total reactive power output command Q REF_TOTAL .
  • Q REF reactive power commands
  • the reactive power controller 16c detects the active power output P CON and the current output I CON of the wind power generation system 1 when a predetermined update time (T1 and T2) is reached (FIG. 12 (A) ( B)), reactive power command Q REF is determined from active power output P CON and current output I CON (FIG. 12C).

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Control Of Electrical Variables (AREA)
  • Inverter Devices (AREA)
  • Control Of Eletrric Generators (AREA)
PCT/JP2017/043736 2016-12-22 2017-12-06 自然エネルギー発電システム、無効電力コントローラまたは自然エネルギー発電システムの制御方法 Ceased WO2018116823A1 (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2016248589A JP6925123B2 (ja) 2016-12-22 2016-12-22 自然エネルギー発電システム、無効電力コントローラまたは自然エネルギー発電システムの制御方法
JP2016-248589 2016-12-22

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TW (1) TWI665841B (https=)
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210257839A1 (en) * 2018-10-23 2021-08-19 Mitsubishi Electric Corporation Grid system, control device, control method for grid system, and power conversion device
US20220239099A1 (en) * 2021-01-25 2022-07-28 Wobben Properties Gmbh Method for detecting a power loss when operating a wind power installation or a wind farm

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109921671B (zh) * 2019-03-20 2020-09-04 中车青岛四方车辆研究所有限公司 单相逆变器并联控制方法、控制系统及逆变器
JP7250632B2 (ja) * 2019-06-27 2023-04-03 株式会社日立製作所 再生可能エネルギー発電システムの統合制御装置および統合制御方法
JP7475773B2 (ja) * 2021-03-17 2024-04-30 株式会社Tmeic 電力変換装置
JP2024017192A (ja) * 2022-07-27 2024-02-08 三菱電機株式会社 電力変換装置、制御方法、および制御プログラム

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007124779A (ja) * 2005-10-27 2007-05-17 Hitachi Ltd 分散型電源システム及び系統安定化方法
JP2009239990A (ja) * 2008-03-25 2009-10-15 Hitachi Ltd 分散型電源群の制御方法及びシステム
JP2012016150A (ja) * 2010-06-30 2012-01-19 Tokyo Electric Power Co Inc:The 太陽光発電装置
US20150295529A1 (en) * 2014-04-15 2015-10-15 General Electric Company Reactive power control for wind turbine generators

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3962318B2 (ja) * 2002-11-26 2007-08-22 株式会社四国総合研究所 分散型電源系統連系の電圧制御システム
JP5509004B2 (ja) * 2010-09-10 2014-06-04 株式会社日立製作所 売電調整サーバ及び方法
JP6048146B2 (ja) * 2010-11-08 2016-12-21 日本電気株式会社 電力系統制御システム及び方法
JP5705606B2 (ja) * 2011-03-23 2015-04-22 関西電力株式会社 電圧上昇抑制装置および分散電源連系システム
JP5705076B2 (ja) * 2011-09-27 2015-04-22 三菱電機株式会社 分散電源用制御装置および集中型電圧制御システム
DE102012212777A1 (de) * 2012-07-20 2014-01-23 Wobben Properties Gmbh Verfahren zum Steuern eines Windparks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007124779A (ja) * 2005-10-27 2007-05-17 Hitachi Ltd 分散型電源システム及び系統安定化方法
JP2009239990A (ja) * 2008-03-25 2009-10-15 Hitachi Ltd 分散型電源群の制御方法及びシステム
JP2012016150A (ja) * 2010-06-30 2012-01-19 Tokyo Electric Power Co Inc:The 太陽光発電装置
US20150295529A1 (en) * 2014-04-15 2015-10-15 General Electric Company Reactive power control for wind turbine generators

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210257839A1 (en) * 2018-10-23 2021-08-19 Mitsubishi Electric Corporation Grid system, control device, control method for grid system, and power conversion device
US12176717B2 (en) * 2018-10-23 2024-12-24 Mitsubishi Electric Corporation Grid system, control device, control method for grid system, and power conversion device
US20220239099A1 (en) * 2021-01-25 2022-07-28 Wobben Properties Gmbh Method for detecting a power loss when operating a wind power installation or a wind farm
US12580382B2 (en) * 2021-01-25 2026-03-17 Wobben Properties Gmbh Method for detecting a power loss when operating a wind power installation or a wind farm

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JP2021168598A (ja) 2021-10-21
TWI665841B (zh) 2019-07-11
TW201824683A (zh) 2018-07-01
JP6925123B2 (ja) 2021-08-25
JP7304385B2 (ja) 2023-07-06
JP2018102105A (ja) 2018-06-28

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