WO2013018507A1 - 電力変換装置 - Google Patents
電力変換装置 Download PDFInfo
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- WO2013018507A1 WO2013018507A1 PCT/JP2012/067345 JP2012067345W WO2013018507A1 WO 2013018507 A1 WO2013018507 A1 WO 2013018507A1 JP 2012067345 W JP2012067345 W JP 2012067345W WO 2013018507 A1 WO2013018507 A1 WO 2013018507A1
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/381—Dispersed generators
-
- 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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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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
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
-
- 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
- H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
- H02J2300/20—The dispersed energy generation being of renewable origin
- H02J2300/22—The renewable source being solar energy
- H02J2300/24—The renewable source being solar energy of photovoltaic origin
- H02J2300/26—The renewable source being solar energy of photovoltaic origin involving maximum power point tracking control for photovoltaic sources
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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
- H02M1/0067—Converter structures employing plural converter units, other than for parallel operation of the units on a single load
- H02M1/007—Plural converter units in cascade
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac 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
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac 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 with automatic control of output voltage or current, e.g. switching regulators
-
- 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
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with 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
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
Definitions
- the present invention relates to a power conversion device that performs power conversion.
- a power conversion device includes a DC link unit, one end connected to the DC link unit, and DC voltage transformation from a DC power source connected to the other end to the DC link unit.
- an AC power line is connected to a control unit that controls the transformation operation of these circuits.
- the power conversion device of the present invention it becomes easy to absorb output fluctuations of solar cells and the like.
- FIG. 1 is a configuration diagram of a unidirectional chopper circuit and a unidirectional chopper control circuit according to a first embodiment of the present invention.
- FIG. It is a block diagram of the power converter device which concerns on 2nd Embodiment of this invention. It is a block diagram of the power converter device which concerns on 3rd Embodiment of this invention.
- FIG. 1 is a configuration diagram of a power conversion device 1 according to the present embodiment.
- the power converter 1 includes a one-way chopper circuit 11 (one form of a first transformer circuit), a bidirectional chopper circuit 12 (one form a second transformer circuit), an inverter circuit 13, a control unit 14, and capacitors (C1 to C3). ), Each reactor (L2, L3), and each external terminal (Ta to Tc).
- the power conversion device 1 includes a solar battery PV (a form of a DC power supply and a power generation device) that generates power using sunlight, a power storage device BAT (for example, a secondary battery and a capacitor) that can be charged and discharged, and a power system E. (One form of AC power line) is connected and used as a device for connecting the solar cell PV and the power storage device BAT to the power system E.
- a solar battery PV a form of a DC power supply and a power generation device
- BAT for example, a secondary battery and a capacitor
- a fuel cell (FC) or the like may be connected to the power conversion device 1 instead of a solar cell.
- a DC link portion DCL to which the chopper circuits (11, 12) are connected is provided on the DC side of the inverter circuit 13 (side not connected to the external terminal Tc).
- the DC link portion DCL is a portion where a plurality of transformer circuits are connected by a direct current line.
- the unidirectional chopper circuit 11 has a front side connected to the external terminal Ta and a back side connected to the DC link unit DCL. In addition, the unidirectional chopper circuit 11 transforms the DC voltage of the DC power output from the solar cell PV and input to the front stage, and outputs the transformed DC power to the rear stage (supplied to the DC link unit DLC). . That is, the one-way chopper circuit 11 operates so as to transform a DC voltage in one direction. Note that “transformation” in the present application is not limited to step-up or step-down, but means changing the magnitude of the voltage.
- the one-way chopper circuit 11 may be either a step-up circuit or a step-down circuit, and may be a step-up / step-down circuit. A more detailed configuration example of the one-way chopper circuit 11 will be described again.
- the bidirectional chopper circuit 12 is a bidirectional buck-boost chopper circuit, for example, and includes a reactor L1 and switching elements (Q1, Q2).
- the switching elements (Q1 to Q7) are NPN type IGBTs, but other types such as power MOSFETs may be adopted.
- the emitter of the switching element Q1 is connected to the collector of the switching element Q2, and is connected to the positive side of the external terminal Tb via the reactor L1.
- the emitter of the switching element Q2 is connected to the negative electrode side of the external terminal Tb and the negative electrode side of the DC link portion DCL.
- the collector of the switching element Q1 is connected to the positive side of the DC link portion DCL.
- each switching element (Q1, Q2) receives a drive pulse signal (G1, G2) corresponding to the switching element (Q1, Q2) from the bidirectional chopper control circuit 14b, and is turned on according to the input drive pulse signal. / Perform non-conducting switching.
- the bidirectional chopper circuit 12 boosts the voltage of the DC power output from the power storage device BAT by turning off the switching element Q1 and periodically turning on / off the switching element Q2 according to the drive pulse signal. And supplied to the DC link unit DCL. Further, the bidirectional chopper circuit 12 makes the switching element Q2 non-conductive, and periodically makes the switching element Q1 conductive / non-conductive according to the drive pulse signal, so that the DC power supplied to the DC link unit DCL is reduced. The voltage can be stepped down and supplied to the power storage device BAT.
- the bidirectional chopper circuit 12 is connected to the external terminal Tb and the DC link unit DCL at both ends, and receives the DC voltage of the DC power input from one of the DC link unit DCL and the power storage device BAT. Transform and output to the other. That is, the bidirectional chopper circuit 12 operates so as to transform the direct current voltage in both directions.
- connection point between the switching element Q3 and the switching element Q4 is connected to the positive side of the external terminal Tc via the reactor L2, and the connection point between the switching element Q5 and the switching element Q6 is connected via the reactor L3. It is connected to the negative side of the external terminal Tc.
- the connection point between the switching element Q3 and the switching element Q5 is connected to the positive side of the DC link part DCL, and the connection point between the switching element Q4 and the switching element Q6 is connected to the negative side of the DC link part DCL. Yes.
- each switching element (Q3 to Q6) receives a drive pulse signal (G3 to G6) corresponding to itself from the inverter control circuit 14c, and is turned on / off according to the input drive pulse signal. Perform continuity switching.
- the inverter control circuit 14 c is a circuit that controls the operation of the inverter circuit 13.
- the inverter control circuit 14c issues a power output command to the power system (command to output power of a certain command value to the power system) or a power input command from the power system (command to input power of a certain command value from the power system).
- Each of the drive pulse signals (G3 to G6) is output according to the received command, and the operation of the inverter circuit 13 is controlled.
- FIG. 2 is a configuration diagram of the unidirectional chopper circuit 11 and the unidirectional chopper control circuit 14a.
- the unidirectional chopper circuit 11 includes a switching element Q7, a reactor L4, capacitors (C4, C5), and a diode D1.
- the other end of the reactor L4 is connected to the positive side of the external terminal Ta and one end of the capacitor C4, and the cathode of the diode D1 is connected to the positive side of the DC link DCL and one end of the capacitor C5.
- the other end of each capacitor (C4, C5) is connected between the negative electrode side of the external terminal Ta and the negative electrode side of the DC link portion DCL.
- the AC power output from the inverter circuit 13 using the operation amount of the one-way chopper circuit 11 (the power input from the DC link unit to the inverter circuit 13 may be used if there is no conversion loss of the inverter circuit 13).
- Is set to a predetermined value (power output command) the operation amount of the bidirectional chopper circuit 12 is determined.
- the direction of operation and the operation amount are set so that the sum of the power corresponding to the output of the one-way chopper circuit 11 and the command value is absorbed (charged) into the power storage device BAT. MVb is determined.
- Whether or not the power storage device BAT needs to be discharged can be determined by detecting whether or not the operation amount MVa is larger than a predetermined threshold th. This is because the manipulated variable MVa increases according to the degree of decrease in the output of the solar cell PV due to the characteristics of the MPPT control. That is, when the operation amount MVa is larger than the predetermined threshold value, it can be determined that the power storage device BAT needs to be discharged.
- the bidirectional chopper control circuit 14b determines that the operation amount MVa of the unidirectional chopper circuit 11 changes so that the degree of transformation a1 of the unidirectional chopper circuit 11 becomes small.
- the operation amount MVb of the bidirectional chopper circuit 12 is changed so that the degree of transformation a2 of the bidirectional chopper circuit 12 becomes small.
- the bidirectional chopper circuit 12 operates to compensate (discharge) the increase or decrease in the output of the solar cell PV from the power storage device BAT. Thereby, the fluctuation
- the bidirectional chopper control circuit 14b detects the change direction and the change amount of the operation amount MVa based on the information of the operation amount MVa, and the fluctuation of the inverter output power is suppressed according to the detection result. In addition, the operation direction and the operation amount MVb of the bidirectional chopper circuit 12 are determined.
- the front side of the unidirectional chopper circuit 11a is connected to the external terminal Ta1, the front side of the unidirectional chopper circuit 11b is connected to the external terminal Ta2, and the front side of the unidirectional chopper circuit 11c is connected to the external terminal Ta3. It is connected to the.
- the rear side of each one-way chopper circuit (11a to 11c) is connected to the DC link unit DCL. That is, the unidirectional chopper circuits (11a to 11c) are connected in parallel to the DC link unit DCL.
- the solar cells (PV1 to PV3) are connected to the external terminals (Ta1 to Ta3) on a one-to-one basis.
- the bidirectional chopper control circuit 14b determines the operation direction and the operation amount MVb of the bidirectional chopper circuit 12 based on the order of the magnitude of the change amount of each operation amount (MVa1 to MVa3). For example, the bidirectional chopper control circuit 14b selects the one having the largest change amount (the one having the highest order) among the operation amounts (MVa1 to MVa3).
- the power conversion device 3 of the third embodiment includes a plurality of systems (here, three systems) including a bidirectional chopper circuit and circuits and terminals related thereto. That is, the power conversion device 3 is equivalent to the external terminal Tb, the bidirectional chopper circuit 12, and the bidirectional chopper control circuit 14b of the first embodiment, and each external terminal (Tb1 to Tb3) and each bidirectional chopper circuit ( 12a to 12c), and bidirectional chopper control circuits (14b1 to 14b3).
- systems here, three systems
- the power conversion device 3 is equivalent to the external terminal Tb, the bidirectional chopper circuit 12, and the bidirectional chopper control circuit 14b of the first embodiment, and each external terminal (Tb1 to Tb3) and each bidirectional chopper circuit ( 12a to 12c), and bidirectional chopper control circuits (14b1 to 14b3).
Abstract
Description
利用されている。
[電力変換装置の構成]
まず第1実施形態について説明する。図1は、本実施形態に係る電力変換装置1の構成図である。電力変換装置1は、片方向チョッパ回路11(第1変圧回路の一形態)、双方向チョッパ回路12(第2変圧回路の一形態)、インバータ回路13、制御部14、各コンデンサ(C1~C3)、各リアクトル(L2、L3)、および各外部端子(Ta~Tc)を備えている。
次に、片方向チョッパ回路11および片方向チョッパ制御回路14aの構成ついて、より詳細に説明する。図2は、片方向チョッパ回路11および片方向チョッパ制御回路14aの構成図である。本図に示すように、片方向チョッパ回路11は、スイッチング素子Q7、リアクトルL4、各コンデンサ(C4、C5)、およびダイオードD1を有している。
次に、双方向チョッパ回路12の制御についてより詳細に説明する。双方向チョッパ制御回路14bは、電力系統への電力出力指令や電力系統からの電力入力指令に対応し、蓄電装置BATとDCリンク部DCLの間の電力伝送が適切になされるように、動作方向や操作量MVbを決定する。
このようにして、双方向チョッパ制御回路14bは、操作量MVaの変化方向と変化量に基づき、太陽電池PVの出力増減に伴うインバータ出力電力の変動が抑えられるように、動作方向および操作量MVbを決定する。
次に、第2実施形態について説明する。なお第2実施形態の説明にあたっては、第1実施形態と異なる部分の説明に重点を置き、共通する部分については説明を省略することがある。
第1の例では、双方向チョッパ制御回路14bは、各操作量(MVa1~MVa3)の変化量の大きさの順位に基づいて、双方向チョッパ回路12の動作方向と操作量MVbを決める。例えば双方向チョッパ制御回路14bは、各操作量(MVa1~MVa3)の間で変化量が最も大きいもの(最も順位の高いもの)を選出する。
第2の例では、双方向チョッパ制御回路14bは、各操作量(MVa1~MVa3)の変化方向(増加と減少の何れであるか)を判別し、この判別の結果に応じて、双方向チョッパ回路12の動作方向と操作量MVbを決める。例えば双方向チョッパ制御回路14bは、各操作量(MVa1~MVa3)を増加したものと減少したものに分類(判別)し、多く分類された方に属する各操作量の中から、変化量が最も大きいものを選出する。
第3の例では、双方向チョッパ制御回路14bは、各片方向チョッパ回路(14a1~14a3)についての、接続されている太陽電池の定格出力容量(定格発電容量)および操作量の変化量に基づいて、双方向チョッパ回路12の動作方向と操作量MVbを決める。例えば双方向チョッパ制御回路14bは、次の(1)式に従って、平均操作量MVavを算出する。
MVav=(MVa×C1+MVb×C2+MVc×C3)/(C1+C2+C3)
・・・(1)
但し、C1は太陽電池PV1の定格出力容量、C2は太陽電池PV2の定格出力容量、C3は太陽電池PV3の定格出力容量を、それぞれ表す。
次に、第3実施形態について説明する。なお第3実施形態の説明にあたっては、第1実施形態と異なる部分の説明に重点を置き、共通する部分については説明を省略することがある。
以上に説明した通り、各実施形態の電力変換装置は、以下の(A)~(F)を備えている。
(A)DCリンク部DCL、
(B)一端がDCリンク部DCLに接続され、他端に接続された太陽電池(直流電源)からDCリンク部DCLへの直流電圧の変圧を行う片方向チョッパ回路(第1変圧回路)、
(C)一端がDCリンク部DCLに接続され、他端に接続された蓄電装置(直流電源)とDCリンク部DCLの間で双方向に直流電圧の変圧を行う双方向チョッパ回路(第2変圧回路)、
(D)変圧の操作量を片方向チョッパ回路および双方向チョッパ回路のそれぞれについて決定し、該操作量に応じて、これらの回路の変圧の動作を制御する制御部14、
(E)電力系統E(交流電力ライン)が接続される外部端子Tc(交流側端子)、
(F)DCリンク部DCLから外部端子Tcへの電圧の直流-交流変換、および、外部端子TcからDCリンク部DCLへの電圧の交流-直流変換の、少なくとも一方を行うインバータ回路13。
7 負荷
11、11a~11c 片方向チョッパ回路(第1変圧回路)
12、12a~12c 双方向チョッパ回路(第2変圧回路)
13 インバータ回路
14 制御部
14a、14a1~14a3 片方向チョッパ制御回路
14b、14b1~14b3 双方向チョッパ制御回路
14c インバータ制御回路
BAT、BAT1~BAT3 蓄電装置
C1~C3 コンデンサ
D1 ダイオード
DCL DCリンク部
E 電力系統
L1~L4 リアクトル
PV、PV1~PV3 太陽電池
Q1~Q7 スイッチング素子
Ta~Tc 外部端子
Claims (9)
- DCリンク部と、
直流電源から出力される直流電力の電圧を変圧して変圧した直流電力を前記DCリンク部へ供給する第1変圧回路と、
前記DCリンク部と蓄電装置とに接続され、前記DCリンク部と前記蓄電装置との内一方から入力された直流電力の電圧を変圧し、変圧した直流電力を他方へ供給する第2変圧回路と、
変圧の操作量を前記第1変圧回路および前記第2変圧回路のそれぞれについて決定し、該操作量に応じて、これらの回路の変圧の動作を制御する制御部と、
交流電力ラインが接続される交流側端子と、
前記DCリンク部へ供給される直流電力を交流電力に変換して前記交流側端子へ出力するインバータ回路と、を備えた電力変換装置であって、
前記制御部は、前記第1変圧回路の操作量を用いて、前記インバータ回路から出力される交流電力が所定値になるように前記第2変圧回路の操作量を決めることを特徴とする電力変換装置。 - 前記制御回路は、
前記第2変圧回路に前記DCリンク部へ電力を供給させる場合に、前記第1変圧回路の変圧の度合が大きくなるように前記第1変圧回路の操作量を変化させる際は、前記第2変圧回路の変圧の度合が大きくなるように前記第2変圧回路の操作量を変化させ、前記第1変圧回路の変圧の度合が小さくなるように前記第1変圧回路の操作量を変化させる際は、前記第2変圧回路の変圧の度合が小さくなるように前記第2変圧回路の操作量を変化させ、
前記第2変圧回路に前記蓄電装置へ電力を供給させる場合に、前記第1変圧回路の変圧の度合が大きくなるように前記第1変圧回路の操作量を変化させる際は、前記第2変圧回路の変圧の度合が小さくなるように前記第2変圧回路の操作量を変化させ、前記第1変圧回路の変圧の度合が小さくなるように前記第1変圧回路の操作量を変化させる際は、前記第2変圧回路の変圧の度合が大きくなるように前記第2変圧回路の操作量を変化させることを特徴とする請求項1に記載の電力変換装置。 - 前記制御部は、前記第1変圧回路に接続された直流電源の出力が最大になるような前記第1変圧回路の操作量を決定する請求項1又は請求項2に記載の電力変換装置。
- 前記DCリンク部に複数の前記第1変圧回路が並列に接続される、請求項1から請求項3の何れかに記載の電力変換装置であって、
前記制御部は、前記第1変圧回路の各々における操作量の内、最も大きく変化した前記操作量を用いて前記第2変圧回路の操作量を決めることを特徴とする電力変換装置。 - 前記DCリンク部に複数の前記第1変圧回路が並列に接続される、請求項1から請求項3の何れかに記載の電力変換装置であって、
前記制御部は、前記第1変圧回路の各々の操作量について該操作量が減少したか増加したかを判別し、該判別の結果、より多く判別された方の操作量を用いて前記第2変圧回路の操作量を決めることを特徴とする電力変換装置。 - 前記DCリンク部に複数の前記第1変圧回路が並列に接続される、請求項1から請求項3の何れかに記載の電力変換装置であって、
前記制御部は、前記第1変圧回路の各々について接続されている前記直流電源の定格出力量の大きさに応じて前記第1変圧回路の各々の操作量を重みづけして加算し、前記加算した値を用いて前記第2変圧回路の操作量を決めることを特徴とする電力変換装置。 - 前記DCリンク部に複数の前記第2変圧回路が並列に接続される、請求項1から請求項6の何れかに記載の電力変換装置であって、
前記制御部は、前記蓄電装置の各々の間で予め付与された充放電に関する優先順位に基づいて、前記第2変圧回路の各々の操作量を決めることを特徴とする電力変換装置。 - 前記交流側端子に電力系統が接続され、
前記インバータ回路は、前記DCリンク部へ供給される直流電力を前記電力系統に同期した交流電力に変換し、この交流電力を前記電力系統の交流電力へ重畳して負荷へ供給することを特徴とする請求項1から請求項7の何れかに記載の電力変換装置。 - 前記負荷により消費される消費電力を検出し、前記第1変圧回路の変圧する直流電力が前記消費電力を下回る場合、不足分を補うように前記第2変圧経路の操作量を決定し、前記第1変圧回路の変圧する直流電力が前記消費電力を上回る場合、余剰分が前記蓄電装置へ吸収されるように前記第2変圧回路の操作量を決定することを特徴とする請求項8に記載の電力変換装置。
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JP2018152145A (ja) * | 2018-07-10 | 2018-09-27 | 住友電気工業株式会社 | 電源装置 |
JP2019122093A (ja) * | 2017-12-28 | 2019-07-22 | シャープ株式会社 | 電力制御装置、太陽光発電システム、およびプログラム |
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Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001238354A (ja) * | 2000-02-28 | 2001-08-31 | Matsushita Electric Ind Co Ltd | 系統連係インバ−タ |
JP2002369406A (ja) * | 2001-06-08 | 2002-12-20 | Hitachi Ltd | 系統連系形電源システム |
JP2003009537A (ja) | 2001-06-27 | 2003-01-10 | Hitachi Ltd | 電力変換装置 |
JP2006060984A (ja) * | 2004-08-24 | 2006-03-02 | Matsushita Ecology Systems Co Ltd | 電源装置 |
JP2006067672A (ja) * | 2004-08-25 | 2006-03-09 | Matsushita Electric Ind Co Ltd | 電源装置 |
JP2006074947A (ja) * | 2004-09-03 | 2006-03-16 | Matsushita Electric Ind Co Ltd | 電源装置 |
JP2011036086A (ja) * | 2009-08-05 | 2011-02-17 | Honda Motor Co Ltd | Dc/dcコンバータ及びそのdc/dcコンバータを備えた電力供給システム |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010088545A2 (en) * | 2009-01-30 | 2010-08-05 | Board Of Regents, The University Of Texas System | Methods and apparatus for design and control of multi-port power electronic interface for renewable energy sources |
JP5597208B2 (ja) * | 2009-12-15 | 2014-10-01 | 日本碍子株式会社 | 二次電池の制御装置及び二次電池の制御方法 |
-
2012
- 2012-07-06 WO PCT/JP2012/067345 patent/WO2013018507A1/ja active Application Filing
- 2012-07-06 JP JP2013526795A patent/JP5641144B2/ja not_active Expired - Fee Related
- 2012-07-06 EP EP12819576.5A patent/EP2738927A4/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001238354A (ja) * | 2000-02-28 | 2001-08-31 | Matsushita Electric Ind Co Ltd | 系統連係インバ−タ |
JP2002369406A (ja) * | 2001-06-08 | 2002-12-20 | Hitachi Ltd | 系統連系形電源システム |
JP2003009537A (ja) | 2001-06-27 | 2003-01-10 | Hitachi Ltd | 電力変換装置 |
JP2006060984A (ja) * | 2004-08-24 | 2006-03-02 | Matsushita Ecology Systems Co Ltd | 電源装置 |
JP2006067672A (ja) * | 2004-08-25 | 2006-03-09 | Matsushita Electric Ind Co Ltd | 電源装置 |
JP2006074947A (ja) * | 2004-09-03 | 2006-03-16 | Matsushita Electric Ind Co Ltd | 電源装置 |
JP2011036086A (ja) * | 2009-08-05 | 2011-02-17 | Honda Motor Co Ltd | Dc/dcコンバータ及びそのdc/dcコンバータを備えた電力供給システム |
Non-Patent Citations (1)
Title |
---|
See also references of EP2738927A4 |
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AU2018202081B2 (en) * | 2013-12-24 | 2019-05-23 | Panasonic intellectual property Management co., Ltd | Power conversion system, converter device, inverter device, and power conversion system manufacturing method |
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