JP2014079051A5 - - Google Patents
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- JP2014079051A5 JP2014079051A5 JP2012224249A JP2012224249A JP2014079051A5 JP 2014079051 A5 JP2014079051 A5 JP 2014079051A5 JP 2012224249 A JP2012224249 A JP 2012224249A JP 2012224249 A JP2012224249 A JP 2012224249A JP 2014079051 A5 JP2014079051 A5 JP 2014079051A5
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- 238000007599 discharging Methods 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 7
- 230000001172 regenerating Effects 0.000 claims description 6
- 230000003247 decreasing Effects 0.000 claims description 5
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium Ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
Description
この発明は上述した課題を解決するためになされたもので、本発明の一態様による電力供給装置は、電力負荷に電力を供給する電力供給装置であって、電源から供給される交流電力を第１目標電圧値の直流電力に変換して前記電力負荷に供給する電力変換装置と、前記電力変換装置に前記電力負荷と並列に接続され、充放電可能な蓄電装置と、前記電力変換装置および前記電力負荷と前記蓄電装置との間に設けられる充放電制御装置であって、当該充放電制御装置の前記電力負荷側の電圧値が第２目標電圧値となるよう制御することで前記蓄電装置の充放電を制御する充放電制御装置と、前記蓄電装置の充電率を閾値と比較し、比較結果に応じて第１目標電圧値または第２目標電圧値の少なくとも一方を増減する目標電圧値設定部と、を具備することを特徴とする。 The present invention has been made to solve the above-described problems, and a power supply device according to an aspect of the present invention is a power supply device that supplies power to a power load, and is provided with AC power supplied from a power source. A power converter that converts the DC power into a target voltage value and supplies the power load; a power storage device that is connected to the power converter in parallel with the power load and is chargeable / dischargeable; the power converter; A charge / discharge control device provided between a power load and the power storage device, wherein the power load side voltage value of the charge / discharge control device is controlled to be a second target voltage value to control the power storage device A charge / discharge control device that controls charge / discharge, and a target voltage value setting unit that compares the charge rate of the power storage device with a threshold value and increases or decreases at least one of the first target voltage value and the second target voltage value according to the comparison result And comprising And wherein the Rukoto.
また、本発明の一態様による電力供給方法は、電源から供給される交流電力を第１目標電圧値の直流電力に変換して電力負荷に供給する電力変換装置と、前記電力変換装置に前記電力負荷と並列に接続され、充放電可能な蓄電装置と、前記電力変換装置および前記電力負荷と前記蓄電装置との間に設けられる充放電制御装置と、を具備する電力供給装置の電力供給方法であって、前記充放電制御装置の前記電力負荷側の電圧値が第２目標電圧値となるよう充放電を制御する充放電制御ステップと、前記蓄電装置の充電率を閾値と比較し、比較結果に応じて第１目標電圧値または第２目標電圧値の少なくとも一方を増減する目標電圧値設定ステップと、を具備することを特徴とする。 The power supply method according to one aspect of the present invention includes a power converter that converts AC power supplied from a power source into DC power having a first target voltage value and supplies the power to a power load; A power supply method for a power supply device comprising: a power storage device connected in parallel with a load and capable of being charged / discharged; and the power conversion device and a charge / discharge control device provided between the power load and the power storage device. A charge / discharge control step for controlling charge / discharge so that a voltage value on the power load side of the charge / discharge control device becomes a second target voltage value, and a charge rate of the power storage device is compared with a threshold value, and a comparison result And a target voltage value setting step for increasing / decreasing at least one of the first target voltage value and the second target voltage value according to.
また、本発明の一態様によるプログラムは、電源から供給される交流電力を第１目標電圧値の直流電力に変換して電力負荷に供給する電力変換装置と、前記電力変換装置に前記電力負荷と並列に接続され、充放電可能な蓄電装置と、前記電力変換装置および前記電力負荷と前記蓄電装置との間に設けられる充放電制御装置と、を具備する電力供給装置を制御するコンピュータに、前記充放電制御装置の前記電力負荷側の電圧値が第２目標電圧値となるよう充放電を制御する充放電制御ステップと、前記蓄電装置の充電率を閾値と比較し、比較結果に応じて第１目標電圧値または第２目標電圧値の少なくとも一方を増減する目標電圧値設定ステップと、を実行させるためのプログラムである。 According to another aspect of the present invention, there is provided a program for converting AC power supplied from a power source into DC power having a first target voltage value and supplying the power load to the power load; and They are connected in parallel, the rechargeable power storage device, a computer for controlling the power supply device comprising a charge and discharge control device provided, the between the power converter and the power load and the power storage device, wherein The charge / discharge control step for controlling charge / discharge so that the voltage value on the power load side of the charge / discharge control device becomes the second target voltage value, the charge rate of the power storage device is compared with a threshold value, and the And a target voltage value setting step for increasing / decreasing at least one of the first target voltage value and the second target voltage value.
ＡＣ／ＤＣコンバータ１０１は、地上電源設備２から供給される交流電力を第１目標電圧値の直流電力に変換して負荷９０に供給する。本実施形態では、第１目標電圧値は固定の電圧値として予め設定されている。
蓄電装置１１１は、例えば鉛電池またはリチウムイオン電池などの二次電池を有し、充放電を行う。ここで、蓄電装置１１１は、充放電制御装置１１２を介してＡＣ／ＤＣコンバータ１０１に負荷９０と並列に接続されている。かかる接続関係により、ＡＣ／ＤＣコンバータ１０１からの電力の電圧値が充放電制御装置１１２の負荷９０側の電圧値より高いときは、蓄電装置１１１は、ＡＣ／ＤＣコンバータ１０１からの電力にて浮動充電される。一方、ＡＣ／ＤＣコンバータ１０１から電力の電圧値が充放電制御装置１１２の負荷９０側の電圧値より低いときは、蓄電装置１１１は、放電を行って負荷９０へ電力を供給する。
また、蓄電装置１１１は、ＢＭＵ（Battery Management Unit、電池管理ユニット）を
具備し、二次電池の充電率を測定してシーケンサ１２１へ出力する。
The AC / DC converter 101 converts AC power supplied from the ground power supply facility 2 into DC power having the first target voltage value and supplies the DC power to the load 90. In the present embodiment, the first target voltage value is preset as a fixed voltage value.
The power storage device 111 includes a secondary battery such as a lead battery or a lithium ion battery, and performs charging and discharging. Here, the power storage device 111 is connected to the AC / DC converter 101 in parallel with the load 90 via the charge / discharge control device 112. With this connection relationship, when the voltage value of power from the AC / DC converter 101 is higher than the voltage value on the load 90 side of the charge / discharge control device 112 , the power storage device 111 floats with the power from the AC / DC converter 101. Charged. On the other hand, when the voltage value of power from AC / DC converter 101 is lower than the voltage value on the load 90 side of charge / discharge control device 112 , power storage device 111 discharges and supplies power to load 90.
The power storage device 111 includes a BMU (Battery Management Unit), measures the charge rate of the secondary battery, and outputs it to the sequencer 121.
充放電制御装置１１２は、充放電制御装置１１２の負荷９０側の電圧が第２目標電圧値となるよう、蓄電装置１１１の充放電を制御する。本実施形態では、第２目標電圧値はシーケンサ１２１によって設定される可変の電圧値である。
シーケンサ１２１は、蓄電装置１１１の二次電池の充電率（以下、単に「蓄電装置１１１の充電率」と称する）を閾値と比較し、比較結果に応じて第２目標電圧値を増減させる。ここで、シーケンサ１２１は、蓄電装置１１１を充電から放電に切り替える放電閾値ＳｈＡと、蓄電装置１１１を放電から充電に切り替える充電閾値ＳｈＢとを予め記憶している。このうち放電閾値ＳｈＡが、本発明における閾値の一例に該当する。また、シーケンサ１２１は、本発明における目標電圧値設定部の一例に該当する。
Charging / discharging control device 112 controls charging / discharging of power storage device 111 such that the voltage on the load 90 side of charging / discharging control device 112 becomes the second target voltage value. In the present embodiment, the second target voltage value is a variable voltage value set by the sequencer 121.
Sequencer 121 compares the charging rate of the secondary battery of power storage device 111 (hereinafter simply referred to as “charging rate of power storage device 111”) with a threshold value, and increases or decreases the second target voltage value according to the comparison result. Here, the sequencer 121 stores in advance a discharge threshold ShA for switching the power storage device 111 from charging to discharging and a charging threshold ShB for switching the power storage device 111 from discharging to charging. Among these, the discharge threshold value ShA corresponds to an example of the threshold value in the present invention. The sequencer 121 corresponds to an example of a target voltage value setting unit in the present invention.
時刻Ｔ１１以前の状態では、蓄電装置１１１の充電率は放電閾値ＳｈＡよりも小さい。そこで、シーケンサ１２１は、充放電制御装置１１２の負荷９０側の目標電圧値（第２目標電圧値）を、ＡＣ／ＤＣコンバータ１０１の出力電圧目標値（第１目標電圧値）である電圧値Ｖｐｓｅｔよりも小さい電圧値Ｖｄｓｅｔ０に設定している。この電圧目標値設定に基づいて、充放電制御装置１１２は、充放電制御装置１１２の負荷９０側の電圧値が電圧値Ｖｄｓｅｔ０となるように、蓄電装置１１１を制御する。これにより、ＡＣ／ＤＣコンバータ１０１側の電圧が蓄電装置１１１側（充放電制御装置１１２側）の電圧より高くなり、ＡＣ／ＤＣコンバータ１０１から蓄電装置１１１へ浮動充電が行われる。 In a state before time T11, the charging rate of power storage device 111 is smaller than discharge threshold ShA. Therefore, the sequencer 121 sets the target voltage value (second target voltage value) on the load 90 side of the charge / discharge control device 112 to the voltage value Vpset that is the output voltage target value (first target voltage value) of the AC / DC converter 101. Is set to a smaller voltage value Vdset0. Based on this voltage target value setting, the charge / discharge control device 112 controls the power storage device 111 so that the voltage value on the load 90 side of the charge / discharge control device 112 becomes the voltage value Vdset0. Thereby, the voltage on the AC / DC converter 101 side becomes higher than the voltage on the power storage device 111 side (charge / discharge control device 112 side) , and floating charging is performed from the AC / DC converter 101 to the power storage device 111.
浮動充電にて蓄電装置１１１の充電率が上昇し、時刻Ｔ１１において充電率が放電閾値ＳｈＡに達している。すると、シーケンサ１２１は、充放電制御装置１１２の負荷９０側の目標電圧値（第２目標電圧値）を、ＡＣ／ＤＣコンバータ１０１の出力電圧目標値（第１目標電圧値）である電圧値Ｖｐｓｅｔよりも大きい電圧値Ｖｄｓｅｔ１に設定している。この電圧目標値設定に基づいて、充放電制御装置１１２は、充放電制御装置１１２の負荷９０側の電圧値が電圧値Ｖｄｓｅｔ１となるように制御することで蓄電装置１１１の充放電を制御する。これにより、蓄電装置１１１側の電圧がＡＣ／ＤＣコンバータ１０１側の電圧より高くなり、蓄電装置１１１は負荷９０へ放電を行う。 The charging rate of the power storage device 111 is increased by floating charging, and the charging rate reaches the discharge threshold value ShA at time T11. Then, the sequencer 121 sets the target voltage value (second target voltage value) on the load 90 side of the charge / discharge control device 112 to the voltage value Vpset that is the output voltage target value (first target voltage value) of the AC / DC converter 101. Is set to a larger voltage value Vdset1. Based on this voltage target value setting, the charge / discharge control device 112 controls the charge / discharge of the power storage device 111 by controlling the voltage value on the load 90 side of the charge / discharge control device 112 to be the voltage value Vdset1. As a result, the voltage on the power storage device 111 side becomes higher than the voltage on the AC / DC converter 101 side, and the power storage device 111 discharges to the load 90.
放電にて蓄電装置１１１の充電率が低下し、時刻Ｔ１２において充電率が充電閾値ＳｈＢに達している。すると、シーケンサ１２１は、充放電制御装置１１２の負荷９０側の目標電圧値（第２目標電圧値）を、電圧値Ｖｄｓｅｔ０に戻している。これにより、時刻Ｔ１１以前と同様、ＡＣ／ＤＣコンバータ１０１側の電圧が蓄電装置１１１側の電圧より高くなり、ＡＣ／ＤＣコンバータ１０１から蓄電装置１１１へ浮動充電が行われる。
なお、図３の例では、負荷９０の電力負荷が小さい状態にあり電圧降下の影響が小さい。このため、線Ｌ１２２の示す中間電圧値は、第１目標電圧値と第２目標電圧値との間の値となっている。
The charging rate of the power storage device 111 decreases due to the discharge, and the charging rate reaches the charging threshold ShB at time T12. Then, the sequencer 121 returns the target voltage value (second target voltage value) on the load 90 side of the charge / discharge control device 112 to the voltage value Vdset0. Thereby, as before time T11, the voltage on the AC / DC converter 101 side becomes higher than the voltage on the power storage device 111 side, and floating charging is performed from the AC / DC converter 101 to the power storage device 111.
In the example of FIG. 3, the power load of the load 90 is in a small state, and the influence of the voltage drop is small. For this reason, the intermediate voltage value indicated by the line L122 is a value between the first target voltage value and the second target voltage value.
時刻Ｔ２１以前においては、負荷９０の電力負荷が小さい状態にある。これにより、図３の時刻Ｔ１１以前の状態と同様、ＡＣ／ＤＣコンバータ１０１から蓄電装置１１１へ浮動充電が行われる。
一方、時刻Ｔ２１から時刻Ｔ２２においては、負荷９０の電力負荷が大きい状態にある。このため、電圧降下が生じて線Ｌ２１２の示す中間電圧値が線Ｌ２１１の示す第２目標電圧値よりも小さくなっている。これにより、充放電制御装置１１２の負荷９０側の電圧が接続先（特に負荷９０）の電圧よりも高い状態となり、蓄電装置１１１は負荷９０へ放電を行う。
Prior to time T21, the load of the load 90 is in a small state. Thus, floating charging is performed from AC / DC converter 101 to power storage device 111 as in the state before time T11 in FIG.
On the other hand, from time T21 to time T22, the power load of the load 90 is in a large state. For this reason, a voltage drop occurs and the intermediate voltage value indicated by the line L212 is smaller than the second target voltage value indicated by the line L211. As a result, the voltage on the load 90 side of the charge / discharge control device 112 becomes higher than the voltage of the connection destination (particularly the load 90), and the power storage device 111 discharges to the load 90.
時刻Ｔ３１以前においては、負荷９０は回生を行っておらず、図３の時刻Ｔ１１からＴ１２までの状態と同様、蓄電装置１１１が負荷９０へ放電を行っている。
一方、時刻Ｔ３１から時刻Ｔ３２においては、負荷９０が回生を行っており、回生電力にて線Ｌ３１２の示す中間電圧値が上昇し、中間電圧値が線Ｌ３１１の示す第２目標電圧値よりも大きくなっている。これにより、充放電制御装置１１２の負荷９０側の電圧が接続先（特に負荷９０）の電圧よりも低い状態となり、蓄電装置１１１は回生電力を充電する。
Prior to time T31, the load 90 is not regenerating, and the power storage device 111 is discharging to the load 90 as in the state from time T11 to time T12 in FIG.
On the other hand, from time T31 to time T32, the load 90 is regenerating, the intermediate voltage value indicated by the line L312 is increased by the regenerative power, and the intermediate voltage value is larger than the second target voltage value indicated by the line L311. It has become. As a result, the voltage on the load 90 side of the charge / discharge control device 112 becomes lower than the voltage of the connection destination (particularly the load 90), and the power storage device 111 charges the regenerative power.
以上のように、充放電制御装置１１２は、シーケンサ１２１が設定する第２目標電圧値に応じて充放電制御装置１１２の負荷９０側の電圧を変化させることで、蓄電装置１１１の充放電を切り替える。これにより、スイッチを用いて蓄電装置１１１の充放電を切り替える必要が無いので瞬断が生じない。すなわち、スイッチ切替動作による蓄電装置１１１からの電力供給開始の遅れや、蓄電装置１１１の充電開始の遅れが生じない。この点において、電力供給装置１００は、クレーン本体３の動作状況に応じて効率よく蓄電装置１１１の充放電を制御して、負荷９０へ電力供給を行うことができる。 As described above, the charge / discharge control device 112 switches charge / discharge of the power storage device 111 by changing the voltage on the load 90 side of the charge / discharge control device 112 according to the second target voltage value set by the sequencer 121. . Thereby, since it is not necessary to switch charging / discharging of the electrical storage apparatus 111 using a switch, an instantaneous interruption does not arise. That is, there is no delay in the start of power supply from the power storage device 111 or the delay in the start of charging of the power storage device 111 due to the switch switching operation. In this respect, the power supply device 100 can efficiently control charging / discharging of the power storage device 111 according to the operation state of the crane body 3 and supply power to the load 90.
図８は、シーケンサ２２１が設定する目標電圧値の例を示す説明図である。同図において、線Ｌ４１１は、蓄電装置１１１の充電率（State Of Charge；ＳＯＣ）の例を示す。
また、線Ｌ４２１は、シーケンサ２２１が設定する第１目標電圧値の例を示す。
時刻Ｔ４１以前の状態では、蓄電装置１１１の充電率は放電閾値ＳｈＡよりも小さい。そこで、シーケンサ２２１は、ＡＣ／ＤＣコンバータ２０１の出力電圧目標値（第１目標電圧値）を、充放電制御装置２１２の負荷９０側の目標電圧値（第２目標電圧値）である電圧値Ｖｄｓｅｔよりも大きい電圧値Ｖｐｓｅｔ１に設定している。この電圧目標値設定に基づいて、ＡＣ／ＤＣコンバータ２０１は、出力電圧値が電圧値Ｖｐｓｅｔ１となるように、ＡＣ／ＤＣコンバータ２０１自らを制御する。これにより、ＡＣ／ＤＣコンバータ２０１側の電圧が蓄電装置１１１側（充放電制御装置２１２側）の電圧より高くなり、ＡＣ／ＤＣコンバータ２０１から蓄電装置１１１へ浮動充電が行われる。
FIG. 8 is an explanatory diagram illustrating an example of the target voltage value set by the sequencer 221. In the figure, a line L411 indicates an example of a state of charge (SOC) of the power storage device 111.
A line L421 indicates an example of the first target voltage value set by the sequencer 221.
In a state before time T41, the charging rate of power storage device 111 is smaller than discharge threshold ShA. Therefore, the sequencer 221 uses the output voltage target value (first target voltage value) of the AC / DC converter 201 as the voltage value Vdset that is the target voltage value (second target voltage value) on the load 90 side of the charge / discharge control device 212. Is set to a larger voltage value Vpset1. Based on this voltage target value setting, the AC / DC converter 201 controls the AC / DC converter 201 itself so that the output voltage value becomes the voltage value Vpset1. Thereby, the voltage on the AC / DC converter 201 side becomes higher than the voltage on the power storage device 111 side (charge / discharge control device 212 side) , and floating charging is performed from the AC / DC converter 201 to the power storage device 111.
浮動充電にて蓄電装置１１１の充電率が上昇し、時刻Ｔ４１において充電率が放電閾値ＳｈＡに達している。すると、シーケンサ２２１は、ＡＣ／ＤＣコンバータ２０１の出力電圧目標値（第１目標電圧値）を、充放電制御装置２１２の負荷９０側の目標電圧値（第２目標電圧値）である電圧値Ｖｄｓｅｔよりも小さい電圧値Ｖｐｓｅｔ０に設定している。この電圧目標値設定に基づいて、ＡＣ／ＤＣコンバータ２０１は、出力電圧値が電圧値Ｖｐｓｅｔ０となるように、ＡＣ／ＤＣコンバータ２０１自らを制御する。これにより、蓄電装置１１１側の電圧がＡＣ／ＤＣコンバータ２０１側の電圧より高くなり、蓄電装置１１１は負荷９０へ放電を行う。 The charging rate of the power storage device 111 is increased by floating charging, and the charging rate reaches the discharge threshold ShA at time T41. Then, the sequencer 221 uses the output voltage target value (first target voltage value) of the AC / DC converter 201 as the voltage value Vdset that is the target voltage value (second target voltage value) on the load 90 side of the charge / discharge control device 212. Is set to a smaller voltage value Vpset0. Based on this voltage target value setting, the AC / DC converter 201 controls the AC / DC converter 201 itself so that the output voltage value becomes the voltage value Vpset0. As a result, the voltage on the power storage device 111 side becomes higher than the voltage on the AC / DC converter 201 side, and the power storage device 111 discharges to the load 90.
Claims (7)
電源から供給される交流電力を第１目標電圧値の直流電力に変換して前記電力負荷に供給する電力変換装置と、
前記電力変換装置に前記電力負荷と並列に接続され、充放電可能な蓄電装置と、
前記電力変換装置および前記電力負荷と前記蓄電装置との間に設けられる充放電制御装置であって、当該充放電制御装置の前記電力負荷側の電圧値が第２目標電圧値となるよう制御することで前記蓄電装置の充放電を制御する充放電制御装置と、
前記蓄電装置の充電率を閾値と比較し、比較結果に応じて第１目標電圧値または第２目標電圧値の少なくとも一方を増減する目標電圧値設定部と、
を具備することを特徴とする電力供給装置。 A power supply device for supplying power to a power load,
A power converter for converting AC power supplied from a power source into DC power having a first target voltage value and supplying the DC power to the power load;
A power storage device connected in parallel to the power load to the power conversion device and capable of charging and discharging,
A charge / discharge control device provided between the power conversion device and the power load and the power storage device, wherein the voltage value on the power load side of the charge / discharge control device is controlled to be a second target voltage value. A charge / discharge control device for controlling charge / discharge of the power storage device ,
A target voltage value setting unit that compares the charging rate of the power storage device with a threshold value and increases or decreases at least one of the first target voltage value or the second target voltage value according to the comparison result;
A power supply apparatus comprising:
前記閾値は、前記蓄電装置の満充電の状態から前記回生電力の蓄電分を差し引いた充電率以下に設定されており、
前記目標電圧値設定部は、前記蓄電装置の充電率が前記閾値以上になると、前記第２目標電圧値が前記第１目標電圧値より大きくなるように前記第１目標電圧値または前記第２目標電圧値の少なくとも一方を増減する
ことを特徴とする請求項１に記載の電力供給装置。 The power load can generate regenerative power,
The threshold value is set to be equal to or less than a charging rate obtained by subtracting the stored amount of the regenerative power from the fully charged state of the power storage device.
The target voltage value setting unit includes the first target voltage value or the second target voltage value so that the second target voltage value becomes larger than the first target voltage value when a charging rate of the power storage device is equal to or greater than the threshold value. The power supply apparatus according to claim 1, wherein at least one of the voltage values is increased or decreased.
ことを特徴とする請求項１または請求項２に記載の電力供給装置。 The target voltage value setting unit increases the second target voltage value to be larger than the first target voltage value when a charging rate of the power storage device becomes equal to or greater than the threshold value. Item 3. The power supply device according to Item 2.
ことを特徴とする請求項１または請求項２に記載の電力供給装置。 The said target voltage value setting part reduces the said 1st target voltage value and makes it smaller than the said 2nd target voltage value, when the charging rate of the said electrical storage apparatus becomes more than the said threshold value. Item 3. The power supply device according to Item 2.
前記目標電圧値設定部は、前記電力負荷の電力変動が所定時間以上無い場合、前記蓄電装置の充電または放電の少なくともいずれか一方を停止させる
ことを特徴とする請求項１または請求項２に記載の電力供給装置。 The power load is a crane device;
The target voltage value setting unit stops charging or discharging of the power storage device when there is no power fluctuation of the power load for a predetermined time or longer. Power supply equipment.
前記電力変換装置に前記電力負荷と並列に接続され、充放電可能な蓄電装置と、
前記電力変換装置および前記電力負荷と前記蓄電装置との間に設けられる充放電制御装置と、
を具備する電力供給装置の電力供給方法であって、
前記充放電制御装置の前記電力負荷側の電圧値が第２目標電圧値となるよう充放電を制御する充放電制御ステップと、
前記蓄電装置の充電率を閾値と比較し、比較結果に応じて第１目標電圧値または第２目標電圧値の少なくとも一方を増減する目標電圧値設定ステップと、
を具備することを特徴とする電力供給方法。 A power converter that converts AC power supplied from a power source into DC power of a first target voltage value and supplies the power to a power load;
A power storage device connected in parallel to the power load to the power conversion device and capable of charging and discharging,
A charge / discharge control device provided between the power conversion device and the power load and the power storage device;
A power supply method for a power supply device comprising:
A charge / discharge control step for controlling charge / discharge so that the voltage value on the power load side of the charge / discharge control device becomes a second target voltage value;
A target voltage value setting step of comparing the charging rate of the power storage device with a threshold value and increasing or decreasing at least one of the first target voltage value or the second target voltage value according to the comparison result;
A power supply method comprising:
前記電力変換装置に前記電力負荷と並列に接続され、充放電可能な蓄電装置と、
前記電力変換装置および前記電力負荷と前記蓄電装置との間に設けられる充放電制御装置と、
を具備する電力供給装置を制御するコンピュータに、
前記充放電制御装置の前記電力負荷側の電圧値が第２目標電圧値となるよう充放電を制御する充放電制御ステップと、
前記蓄電装置の充電率を閾値と比較し、比較結果に応じて第１目標電圧値または第２目標電圧値の少なくとも一方を増減する目標電圧値設定ステップと、
を実行させるためのプログラム。 A power converter that converts AC power supplied from a power source into DC power of a first target voltage value and supplies the power to a power load;
A power storage device connected in parallel to the power load to the power conversion device and capable of charging and discharging,
A charge / discharge control device provided between the power conversion device and the power load and the power storage device;
A computer for controlling a power supply device comprising:
A charge / discharge control step for controlling charge / discharge so that the voltage value on the power load side of the charge / discharge control device becomes a second target voltage value;
A target voltage value setting step of comparing the charging rate of the power storage device with a threshold value and increasing or decreasing at least one of the first target voltage value or the second target voltage value according to the comparison result;
A program for running
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
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| JP2012224249A JP6196764B2 (en) | 2012-10-09 | 2012-10-09 | Power supply apparatus, power supply method and program |
| PCT/JP2013/073117 WO2014057739A1 (en) | 2012-10-09 | 2013-08-29 | Power supply apparatus, power supply method and program |
| CN201380039016.7A CN104488164B (en) | 2012-10-09 | 2013-08-29 | Power supply device, power supply method |
| CN201711135465.8A CN107857198B (en) | 2012-10-09 | 2013-08-29 | Power supply device and power supply method |
| IN649DEN2015 IN2015DN00649A (en) | 2012-10-09 | 2013-08-29 |
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| CN108306321A (en) * | 2017-12-20 | 2018-07-20 | 广州智光电气股份有限公司 | A kind of energy-storage system |
| CN112875518A (en) * | 2021-01-28 | 2021-06-01 | 三一汽车起重机械有限公司 | Control system and control method for multi-mode plug-in operation of crane |
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| JP2938084B2 (en) * | 1989-03-07 | 1999-08-23 | 東京電力株式会社 | DC power supply system with multiple batteries |
| JPH11285165A (en) * | 1998-03-26 | 1999-10-15 | Sumitomo Heavy Ind Ltd | Power equipment for crane |
| EP1235323A4 (en) * | 1999-11-17 | 2008-08-06 | Fujitec Kk | Power supply for ac elevator |
| JP4302847B2 (en) * | 2000-02-28 | 2009-07-29 | 三菱電機株式会社 | Elevator control device |
| JP2001253653A (en) * | 2000-03-13 | 2001-09-18 | Hitachi Ltd | Elevator system |
| JP4338876B2 (en) * | 2000-05-09 | 2009-10-07 | 三菱電機株式会社 | Electric motor drive device and compressor drive device |
| JP3827709B2 (en) * | 2004-03-18 | 2006-09-27 | 松下電器産業株式会社 | Power system and management method thereof |
| JP4081101B2 (en) * | 2005-03-28 | 2008-04-23 | 富士通株式会社 | Power supply apparatus and power supply method |
| JP4067554B2 (en) * | 2006-01-31 | 2008-03-26 | 株式会社パワーシステム | Power storage device |
| CN100588075C (en) * | 2006-04-10 | 2010-02-03 | 中国科学院电工研究所 | Hybrid accumulator for elevator and control method thereof |
| CN100499312C (en) * | 2006-05-12 | 2009-06-10 | 财团法人工业技术研究院 | Power supply and battery exchanging device combining regenerated energy and radio communication |
| JP5263726B2 (en) * | 2007-11-15 | 2013-08-14 | 東芝エレベータ株式会社 | Elevator power supply system |
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| JP2011135686A (en) * | 2009-12-24 | 2011-07-07 | Kawasaki Heavy Ind Ltd | Device and method for controlling hybrid system |
| CN101807821B (en) * | 2010-03-05 | 2012-04-25 | 南京理工大学 | Energy saving system of elevator |
| CN101817471B (en) * | 2010-04-27 | 2012-06-13 | 天津大学 | Super capacitor energy-storage type elevator driver |
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