WO2015029431A1 - 分散電源システム、パワーコンディショナ - Google Patents
分散電源システム、パワーコンディショナ Download PDFInfo
- Publication number
- WO2015029431A1 WO2015029431A1 PCT/JP2014/004409 JP2014004409W WO2015029431A1 WO 2015029431 A1 WO2015029431 A1 WO 2015029431A1 JP 2014004409 W JP2014004409 W JP 2014004409W WO 2015029431 A1 WO2015029431 A1 WO 2015029431A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- power
- forward flow
- power conditioner
- flow threshold
- threshold
- Prior art date
Links
Images
Classifications
-
- 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
- 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
-
- 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
-
- 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
-
- 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
- H02J2300/30—The power source being a fuel cell
-
- 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
- H02M1/0009—Devices or circuits for detecting current in a converter
Definitions
- the present invention relates to a distributed power supply system and a power conditioner.
- a distributed power supply system in which a natural energy type power supply system such as a solar battery and a non-natural energy type power supply system such as a storage battery or a fuel cell are connected to the same commercial power supply system (hereinafter abbreviated as a system as appropriate) Exists (see, for example, Patent Document 1). It is also conceivable that a plurality of non-natural energy type power supply systems are interconnected in the same system to form a distributed power supply system. Each power supply system can perform a linked operation in which AC power is output in conjunction with the grid and a self-sustained operation in which AC power is output independently from the grid, such as during a system power failure.
- each power conditioner of the non-natural energy type power supply system is connected with a current sensor for detecting current between the system and the system. .
- Each power conditioner performs control so that a predetermined forward flow (current in the power purchase direction) always flows through the current sensor in order to prevent power sale to the system.
- each current sensor When power conditioners of multiple non-renewable energy type power systems are connected to the same system, each current sensor must be connected so that the output of one power conditioner is not detected as a reverse power flow in the current sensor of another power conditioner. It is necessary to install. For this reason, each current sensor is installed in the system
- the forward flow threshold values of a plurality of inverters are set different values depending on, for example, the type of product and the manufacturer, and there is a case where the threshold values cannot be distinguished from each other.
- the forward power flow thresholds are different, there is a problem that only a specific power conditioner performs output, and other power conditioners do not perform output.
- a power conditioner with a forward flow threshold higher than the forward flow reduces the output, and a power conditioner with a forward flow threshold lower than the forward flow outputs the output. increase. For this reason, as a result, the output is concentrated on the power conditioner having a low forward flow threshold, and the output of the power conditioner having a high forward flow threshold is stopped. If such a situation continues, there may be a negative effect such that the SOH (State of Health) of the power supply device where the output is concentrated is extremely lower than the other.
- SOH State of Health
- a distributed power supply system includes: A power conditioner that controls the output of the power supply; A current sensor connected to the inverter; With other inverters that control the output of other power supplies, Another current sensor connected to the other power conditioner, The current sensor and the other current sensor are installed at a position where the current from the system is detected as the same forward flow, In the case where the forward flow threshold for preventing reverse flow of the inverter is different from the other forward flow threshold for preventing reverse flow of the other inverter, The power conditioner controls the output of the power supply device so that the forward flow higher than the forward flow threshold is matched with the forward flow threshold, and then the other power conditioner is based on the other forward flow threshold. When the forward power flow becomes higher than the forward power flow threshold value by controlling the output of the other power supply device, the forward power flow threshold value is increased.
- a power conditioner is: A power conditioner connected to the same system as another power conditioner connected to a current sensor and controlling the output of the power supply device and controlling the output of another power supply device,
- the current sensor and the current sensor of the other power conditioner are installed at a position where the current from the system is detected as the same forward flow, and the forward flow threshold for preventing reverse flow of the power conditioner is set to the other power conditioner.
- the other power conditioner is configured based on the other forward current threshold.
- a control unit is provided for increasing the forward flow threshold when the forward flow is higher than the forward flow threshold by controlling the output.
- the output bias of each power supply system is different. Can be eliminated.
- a distributed power system includes a first power system having a first power conditioner 10, a first power device 11, and a first current sensor 12, and a second power condition. And a second power supply system having a second power supply device 21 and a second current sensor 22, a general load 30, a specific load 40, and a changeover switch 50 for switching a power supply source to the specific load 40.
- the second power conditioner 20, the second power supply device 21, and the second current sensor 22 correspond to the other power conditioner, the other power supply device, and the other current sensor in the claims, respectively.
- a solid line connecting the functional blocks represents a wiring through which power flows.
- FIG. 1 a solid line connecting the functional blocks
- the broken line which connects each power conditioner and a current sensor represents the flow of the control signal or the information communicated.
- the communication indicated by the broken line may be wired communication or wireless communication.
- Various systems including a physical layer and a logical layer can be employed for communication of control signals and information.
- communication by a short-range communication method such as ZigBee (registered trademark) can be employed.
- various transmission media such as infrared communication and power line carrier communication (PLC: Power Line Communication) can be used.
- PLC Power Line Communication
- various protocols such as ZigBee SEP 2.0 (Smart Energy Profile 2.0), ECHONET Lite (registered trademark), etc. are operated on the physical layer suitable for each communication. May be.
- the first power supply device 11 of the first power supply system is a storage battery
- the second power supply device 21 of the second power supply system is a fuel cell.
- the 1st power supply device 11 storage battery
- the second power supply device 21 fuel cell
- the first current sensor 12 and the second current sensor 22 are installed at a position where the current from the system is detected as the same forward flow. The value detected by the first current sensor 12 is communicated to the first power conditioner 10.
- the value detected by the second current sensor 22 is communicated to the second power conditioner 20.
- the first forward flow threshold for the first power conditioner 10 to prevent reverse flow and the second forward flow threshold for the second power conditioner 20 to prevent reverse flow are different values. It is assumed that the power conditioner does not have information on the forward flow threshold of the other power conditioner.
- General load 30 is a load that is normally used in homes and offices, and is an electric device such as a television, an air conditioner, a dryer, or a vacuum cleaner.
- the specific load 40 is a load used during a self-sustaining operation such as a system power failure, and is an electrical device such as an emergency lighting.
- the changeover switch 50 is a switch for switching the power supply source to the specific load 40 by a user operation. When the changeover switch 50 is set on the first power conditioner 10 side as shown in the figure, the power is automatically supplied from the first power conditioner 10 to the specific load 40 without the user's operation during the independent operation. There is an advantage that is done.
- the first power conditioner 10 adjusts its first forward flow threshold value, thereby performing control to eliminate the output bias between the power conditioners.
- a conventional output control method in which the forward flow threshold is not adjusted will be described before the output control method according to the embodiment of the present invention.
- the forward current and the forward current threshold are expressed in watts (W), but current / power measurement and conversion can be appropriately performed by those skilled in the art.
- the first forward flow threshold of the first power conditioner 10 is 22 W
- the second forward flow threshold of the second power conditioner 20 is 30 W
- the power consumption of the general load 30 is 100 W
- the specific load 40 from the first power conditioner 10 is set. The effect of the output on is not considered.
- the 1st power conditioner 10 and the 2nd power conditioner 20 can adjust an output in the range of the maximum output (for example, 2.5 kW) of each power unit from zero, respectively.
- the output of the first power conditioner 10 is “first output”
- the output of the second power conditioner 20 is “second output”
- the first forward flow threshold is “first threshold”
- the first Two forward flow thresholds are abbreviated as “second threshold”
- power from the grid is abbreviated as “forward flow”.
- the processing steps of each flowchart are performed by a control unit configured by a suitable processor provided in each power conditioner.
- FIG. 2 is an output control flow of the conventional power conditioner
- FIG. 3 is a diagram showing an output change by the conventional output control.
- the first power conditioner 10 measures the forward flow by the first current sensor 12 (step S101), the forward flow 30W is higher than the first forward flow threshold 22W (Yes in step S102), and the first power supply Since there is room for adjusting the output of the device 11 (Yes in step S103), the output is increased by 8W of the difference so that the forward flow 30W becomes the same value as the first forward flow threshold 22W (step S104).
- the second power conditioner 20 measures the forward flow by the second current sensor 22 (step S101), and the forward flow 22W is lower than the second forward flow threshold 30W (Yes in step S102). Since there is room for adjusting the output of the second power supply device 21 (Yes in step S103), the output is reduced by the difference of 8W so that the forward flow 22W becomes the same value as the second forward flow threshold 30W (step S104). ).
- the first power conditioner 10 increases the output in accordance with the forward flow and the second power conditioner 20 decreasing the output (T3 to T19)
- the first power conditioner 10 The output (78 W) is concentrated, and output bias occurs.
- the output of the second power conditioner 20 is zero, and it is impossible to reduce the output to a value smaller than zero, so the output cannot be adjusted (output adjustment is impossible). .
- FIG. 4 is an output control flow of the power conditioner according to the first embodiment of the present invention
- FIG. 5 is a diagram showing a change in output by the output control according to the first embodiment.
- the first power conditioner 10 controls the output of the first power supply device 11 so that the forward flow higher than the first forward flow threshold is matched with the first forward flow threshold. When the forward flow is higher than the first forward flow threshold, the first forward flow threshold is increased.
- the 2nd power conditioner 20 shall perform the conventional output control of FIG.
- the first power conditioner 10 performs conventional output control similarly to the second power conditioner 20 during the states T1 to T4 in FIG. This is because, after controlling the forward flow to the first forward flow threshold, the forward flow again becomes higher than the first forward flow threshold, in addition to the difference in the forward flow threshold with the second power conditioner 20, This is because various factors such as a decrease in the output of the second power conditioner and an increase in power consumption of the general load can be considered. Note that it is possible to switch to the output control flow of the present embodiment shown in FIG. 4 according to the setting of an administrator or the like at the time of initial setting of the distributed power supply system.
- the first power conditioner 10 determines that the second forward flow threshold of the second power conditioner 20 is different from the first forward flow threshold of its own at the time of the state T5 from the periodicity of the forward flow change.
- the processing is switched to the output control flow shown in FIG.
- what is necessary is just to perform acquisition of information, such as the periodicity of the change of a forward flow mentioned above, in the control part of the 1st power conditioner 10.
- FIG. The first power conditioner 10 measures the forward flow with the first current sensor 12 (step S201), and the forward flow 30W is higher than the first forward flow threshold 22W (Yes in step S202), so The tidal current threshold value is increased to 26 W, for example (step S203).
- the first power conditioner 10 confirms whether or not the output adjustment of the first power supply device 11 is necessary (Yes in step S204). In the confirmation of necessity of output adjustment, it is determined whether or not output adjustment is necessary to make the first forward flow threshold value of the first power conditioner 10 the same value as the forward flow value. Next, the first power conditioner 10 increases the difference by 4W so that the forward flow 30W becomes the same value as the first forward flow threshold 26W after the threshold is increased (step S205). The processing of the second power conditioner 20 in the state T6 is the same as the flow shown in FIG.
- the correction value by which the first power conditioner 10 increases the first forward flow threshold can be determined based on the difference between the forward flow and the current first forward flow threshold. For example, when the difference between the forward tide and the current first forward tide threshold is directly set as the correction value, there is a possibility that the same forward tide threshold as the second power conditioner 20 can be quickly set. Further, the value obtained by dividing the difference between the forward tide and the current first forward tide threshold into a plurality of values is used as a correction value, and the first forward tide threshold is increased stepwise, thereby causing a sudden change in the first forward tide threshold. It is possible to set the same forward power flow threshold as that of the second power conditioner 20 while preventing output fluctuation.
- the first forward flow threshold is increased step by step, it is not necessary to equalize the correction values at each step. For example, by increasing the correction value in the first half and gradually decreasing the correction value in the second half, It is possible to set the same forward flow threshold value more accurately while approaching the second forward flow threshold value of the second power conditioner 20.
- the first power conditioner 10 measures the forward flow by the first current sensor 12 (step S201), and the forward flow 30W is higher than the first forward flow threshold 26W (Yes in step S202).
- the own first forward flow threshold is increased to 30 W, for example (step S203). In this case, in the first power conditioner 10, since the forward flow 30W is equal to the first forward flow threshold 30W after the threshold is increased, output adjustment is not necessary (No in step S204).
- the first power conditioner 10 and The output of the second power conditioner 20 can be stabilized.
- the first power conditioner 10 measures the forward flow with the first current sensor 12 in the state T9 (step S201), and the forward flow 30W is changed to the first forward flow threshold 30W. (No in step S202).
- the first power conditioner 10 can stop the increase of the forward flow threshold and switch from the output control flow according to the present embodiment to the conventional output control flow of FIG.
- the 1st power conditioner 10 and the 2nd power conditioner 20 can perform a desired output suitably.
- the first power conditioner 10 controls the output of the first power supply device 11 so that the forward flow higher than the first forward flow threshold is matched with the first forward flow threshold.
- the first forward flow threshold is increased.
- the first power conditioner 10 stops increasing the forward flow threshold when the forward flow becomes equal to the first forward flow threshold. Thereby, the forward power flow threshold between distributed power supply systems can be made equal, and the output of each power supply system can be stabilized.
- FIG. 6 is an output control flow of the power conditioner according to the second embodiment of the present invention
- FIG. 7 is a diagram showing a change in output by the output control according to the second embodiment.
- the first power conditioner 10 controls the output of the first power supply device 11 so that the forward flow higher than the first forward flow threshold is matched with the first forward flow threshold.
- the first forward flow threshold is increased.
- the first power conditioner 10 decreases the first forward flow threshold when the forward flow is lower than the first forward flow threshold.
- the 2nd power conditioner 20 shall perform the conventional output control of FIG.
- the first power conditioner 10 performs the conventional output control in the same manner as the second power conditioner 20 during the states T1 to T5 in FIG. 7, as in the first embodiment.
- the first power conditioner 10 determines that the second forward flow threshold of the second power conditioner 20 is different from the first forward flow threshold of its own at the time of the state T5 from the periodicity of the forward flow change. Then, the processing is switched to the output control flow according to the present embodiment shown in FIG.
- the first power conditioner 10 measures the forward flow with the first current sensor 12 (step S301), and the forward flow 30W is higher than the first forward flow threshold 22W (Yes in step S302).
- the tidal current threshold value is increased to 28 W, for example (step S303).
- the first power conditioner 10 confirms whether or not the output adjustment of the first power supply device 11 is necessary (Yes in step S304), and the forward flow 30W becomes the same value as the first forward flow threshold 28W after the threshold is increased. In this way, the output for 2 W of the difference is increased (step S305).
- the processing of the second power conditioner 20 in the state T6 is the same as the flow shown in FIG.
- the first power conditioner 10 measures the forward flow by the first current sensor 12 (step S301), and the forward flow 30W is higher than the first forward flow threshold 28W (Yes in step S302).
- the first forward power flow threshold value is increased to 34 W, for example (step S303).
- the first power conditioner 10 confirms whether or not the output adjustment of the first power supply device 11 is necessary (Yes in step S304), and the forward flow 30W becomes the same value as the first forward flow threshold 34W after the threshold is increased. In this manner, the output for the difference of 4 W is reduced (step S305).
- the processing of the second power conditioner 20 in the state T8 is the same as the flow shown in FIG.
- the first power conditioner 10 measures the forward flow by the first current sensor 12 (step S301), and the forward flow 30W is lower than the first forward flow threshold 34W (No in step S302). In step S306, the first forward flow threshold is decreased to, for example, 32 W (step S307). Further, the first power conditioner 10 confirms whether or not the output adjustment of the first power supply device 11 is necessary (Yes in step S304), and the forward flow 30W becomes the same value as the first forward flow threshold 32W after the threshold is decreased. In this way, the output for 2W of the difference is reduced (step S305). The processing of the second power conditioner 20 in the state T10 is the same as the flow shown in FIG.
- the first power conditioner 10 measures the forward flow by the first current sensor 12 (step S301), and the forward flow 30W is lower than the first forward flow threshold 32W (No in step S302). In step S306, the first forward flow threshold is decreased to, for example, 30 W (step S307). In this case, in the first power conditioner 10, since the forward flow 30W is equal to the first forward flow threshold 30W after the threshold is increased, output adjustment is not necessary (No in step S304).
- the first power conditioner 10 and the output of the second power conditioner 20 can be stabilized.
- the first power conditioner 10 measures the forward flow by the first current sensor 12 in the state T13 (step S301), and the forward flow 30W is changed to the first forward flow threshold. It is detected that it is equal to 30 W (No in step S302, No in S306).
- the first power conditioner 10 can stop the decrease of the forward flow threshold and switch from the output control flow according to the present embodiment to the conventional output control flow of FIG.
- the 1st power conditioner 10 and the 2nd power conditioner 20 can perform a desired output suitably.
- the first power conditioner 10 controls the output of the first power supply device 11 so that the forward flow higher than the first forward flow threshold is matched with the first forward flow threshold.
- the first forward flow threshold is increased.
- the first power conditioner 10 decreases the first forward flow threshold when the forward flow is lower than the first forward flow threshold.
- the first power conditioner 10 may control the output of the first power supply device 11 until the forward power flow becomes equal to the first forward power flow threshold value, and then store the forward power flow value as the first forward power flow threshold value. . If the first power conditioner 10 is operated by replacing the forward flow threshold value with the stored first forward flow threshold value at the next start-up, the first power conditioner 10 increases or decreases the forward flow threshold value for the second time. Subsequent steps can be omitted. As a result, the effects of reduction in power consumption related to forward current flow increase / decrease and threshold judgment control (calculation) and stabilization of the outputs of the multiple first power conditioners and the second power conditioner are obtained. However, in consideration of equipment errors and the like, after a predetermined period of time, past data may be reset and the forward flow threshold value increased or decreased to be equalized.
- the first power conditioner 10 uses the second forward flow threshold for preventing reverse flow of the second power conditioner 20 as a reference threshold, and the first power conditioner.
- the ten first forward flow thresholds may be increased or decreased with respect to the reference threshold. By doing in this way, it becomes possible to output only from either the 1st power conditioner 10 or the 2nd power conditioner 20.
- each functional unit, each step, etc. can be rearranged so that there is no logical contradiction, and a plurality of functional units, steps, etc. can be combined into one or divided. It is.
- the first power supply system is described as a storage battery system
- the second power supply system is described as a fuel cell system.
- the present invention is not limited to this, and includes any power supply system having a different forward power flow threshold. It can be applied to a distributed power system.
- the present invention can be applied to a distributed power supply system including two power storage systems having different forward flow thresholds.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
Description
電源装置の出力を制御するパワーコンディショナと、
前記パワーコンディショナに接続された電流センサと、
他の電源装置の出力を制御する他のパワーコンディショナと、
前記他のパワーコンディショナに接続された他の電流センサと、を備え、
前記電流センサ及び前記他の電流センサは、系統からの電流を同じ順潮流として検出する位置に設置され、
前記パワーコンディショナの逆潮流防止用の順潮流閾値が前記他のパワーコンディショナの逆潮流防止用の他の順潮流閾値と異なる場合において、
前記パワーコンディショナは、前記順潮流閾値よりも高い前記順潮流を前記順潮流閾値に合わせるように前記電源装置の出力を制御した後、前記他のパワーコンディショナが前記他の順潮流閾値に基づき前記他の電源装置の出力を制御することによって前記順潮流が前記順潮流閾値よりも高くなる場合に、前記順潮流閾値を増加させる、ものである。
電流センサと接続され電源装置の出力を制御し、他の電源装置の出力を制御する他のパワーコンディショナと同じ系統に連系接続されるパワーコンディショナであって、
前記電流センサ及び前記他のパワーコンディショナの電流センサが前記系統からの電流を同じ順潮流として検出する位置に設置され、前記パワーコンディショナの逆潮流防止用の順潮流閾値が前記他のパワーコンディショナの逆潮流防止用の他の順潮流閾値と異なる場合において、
前記順潮流閾値よりも高い前記順潮流を前記順潮流閾値に合わせるように前記電源装置の出力を制御した後、前記他のパワーコンディショナが前記他の順潮流閾値に基づき前記他の電源装置の出力を制御することによって前記順潮流が前記順潮流閾値よりも高くなる場合に、前記順潮流閾値を増加させる制御部を備える、ものである。
11 第1電源装置
12 第1電流センサ
20 第2パワーコンディショナ(他のパワーコンディショナ)
21 第2電源装置(他の電源装置)
22 第2電流センサ(他の電流センサ)
30 一般負荷
40 特定負荷
50 切換スイッチ
Claims (6)
- 電源装置の出力を制御するパワーコンディショナと、
前記パワーコンディショナに接続された電流センサと、
他の電源装置の出力を制御する他のパワーコンディショナと、
前記他のパワーコンディショナに接続された他の電流センサと、を備え、
前記電流センサ及び前記他の電流センサは、系統からの電流を同じ順潮流として検出する位置に設置され、
前記パワーコンディショナの逆潮流防止用の順潮流閾値が前記他のパワーコンディショナの逆潮流防止用の他の順潮流閾値よりも低い場合において、
前記パワーコンディショナは、前記順潮流閾値よりも高い前記順潮流を前記順潮流閾値に合わせるように前記電源装置の出力を制御した後、前記他のパワーコンディショナが前記他の順潮流閾値に基づき前記他の電源装置の出力を制御することによって前記順潮流が前記順潮流閾値よりも高くなる場合に、前記順潮流閾値を増加させる、分散電源システム。 - 前記パワーコンディショナは、前記順潮流閾値を増加した後、前記順潮流が前記順潮流閾値と等しくなる場合に、前記順潮流閾値の増加を停止する、請求項1に記載の分散電源システム。
- 前記パワーコンディショナは、前記順潮流閾値を増加した後、前記順潮流が前記順潮流閾値よりも低くなる場合に、前記順潮流閾値を減少させる、請求項1又は2に記載の分散電源システム。
- 電流センサと接続され電源装置の出力を制御し、他の電源装置の出力を制御する他のパワーコンディショナと同じ系統に連系接続されるパワーコンディショナであって、
前記電流センサ及び前記他のパワーコンディショナの他の電流センサが前記系統からの電流を同じ順潮流として検出する位置に設置され、前記パワーコンディショナの逆潮流防止用の順潮流閾値が前記他のパワーコンディショナの逆潮流防止用の他の順潮流閾値よりも低い場合において、
前記順潮流閾値よりも高い前記順潮流を前記順潮流閾値に合わせるように前記電源装置の出力を制御した後、前記他のパワーコンディショナが前記他の順潮流閾値に基づき前記他の電源装置の出力を制御することによって前記順潮流が前記順潮流閾値よりも高くなる場合に、前記順潮流閾値を増加させる制御部を備える、パワーコンディショナ。 - 前記制御部は、前記順潮流閾値を増加した後、前記順潮流が前記順潮流閾値と等しくなる場合に、前記順潮流閾値の増加を停止する、請求項4に記載のパワーコンディショナ。
- 前記制御部は、前記順潮流閾値を増加した後、前記順潮流が前記順潮流閾値よりも低くなる場合に、前記順潮流閾値を減少させる、請求項4又は5に記載のパワーコンディショナ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/915,619 US10079491B2 (en) | 2013-08-30 | 2014-08-27 | Dispersed power supply system and power conditioner |
EP14839163.4A EP3041109B1 (en) | 2013-08-30 | 2014-08-27 | Distributed power supply system and power conditioner |
JP2015523330A JP5781257B2 (ja) | 2013-08-30 | 2014-08-27 | 分散電源システム、パワーコンディショナ |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013179971 | 2013-08-30 | ||
JP2013-179971 | 2013-08-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015029431A1 true WO2015029431A1 (ja) | 2015-03-05 |
Family
ID=52586020
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2014/004409 WO2015029431A1 (ja) | 2013-08-30 | 2014-08-27 | 分散電源システム、パワーコンディショナ |
Country Status (4)
Country | Link |
---|---|
US (1) | US10079491B2 (ja) |
EP (1) | EP3041109B1 (ja) |
JP (1) | JP5781257B2 (ja) |
WO (1) | WO2015029431A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10079491B2 (en) | 2013-08-30 | 2018-09-18 | Kyocera Corporation | Dispersed power supply system and power conditioner |
WO2023223434A1 (ja) * | 2022-05-17 | 2023-11-23 | オムロン株式会社 | 電力供給システム、全負荷分電盤、電力供給装置、電力供給装置の電力供給制御方法、電力供給路、電力変換装置及び接続方法 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3343729B1 (en) * | 2015-08-28 | 2021-05-26 | Kyocera Corporation | Management server and communication method |
DE112017001108T5 (de) * | 2016-03-02 | 2018-11-29 | Daihen Corp. | Stromversorgungssystem |
CN106026104B (zh) * | 2016-07-14 | 2018-07-06 | 嘉兴国电通新能源科技有限公司 | 一种基于惩罚对偶分解技术的电力系统最优潮流控制方法 |
CN106159955B (zh) * | 2016-07-14 | 2018-07-06 | 嘉兴国电通新能源科技有限公司 | 基于连续惩罚对偶分解的电力系统分布式最优潮流方法 |
CN106571643B (zh) * | 2016-10-20 | 2019-12-24 | 北京科诺伟业科技股份有限公司 | 一种光储微电网系统控制方法 |
CN106549419B (zh) * | 2016-12-07 | 2019-03-15 | 国网重庆市电力公司电力科学研究院 | 基于万有引力算法的独立微网系统设计方法 |
US10396652B1 (en) * | 2018-04-27 | 2019-08-27 | Hewlett Packard Enterprise Development Lp | Controlled power adjustments |
EP3627433B1 (en) * | 2018-09-19 | 2021-11-24 | Hitachi Energy Switzerland AG | Resiliency determination in a microgrid |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008041311A1 (fr) * | 2006-10-02 | 2008-04-10 | Otaki Gas Corporation | Système de génération d'alimentation électrique hybride |
WO2009157342A1 (ja) * | 2008-06-27 | 2009-12-30 | シャープ株式会社 | 電力を電力需要施設に分配する電力制御システム |
WO2013088798A1 (ja) * | 2011-12-15 | 2013-06-20 | パナソニック株式会社 | 電力供給システム |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1146458A (ja) | 1997-07-08 | 1999-02-16 | Seinan Sogo Kaihatsu Kk | 太陽光発電システム |
WO2002065611A1 (fr) | 2001-02-16 | 2002-08-22 | Yanmar Co., Ltd. | Système de production d'énergie à générateur entraîné par moteur |
JP4236389B2 (ja) * | 2001-03-22 | 2009-03-11 | 大阪瓦斯株式会社 | 電力制御方法、電力制御システム、制御装置、及びコンピュータプログラム |
JP2010273407A (ja) | 2009-05-19 | 2010-12-02 | Osaka Gas Co Ltd | エネルギー供給システム |
JP2014045527A (ja) | 2010-12-28 | 2014-03-13 | Sanyo Electric Co Ltd | 電力制御装置 |
WO2015029431A1 (ja) | 2013-08-30 | 2015-03-05 | 京セラ株式会社 | 分散電源システム、パワーコンディショナ |
-
2014
- 2014-08-27 WO PCT/JP2014/004409 patent/WO2015029431A1/ja active Application Filing
- 2014-08-27 JP JP2015523330A patent/JP5781257B2/ja active Active
- 2014-08-27 EP EP14839163.4A patent/EP3041109B1/en active Active
- 2014-08-27 US US14/915,619 patent/US10079491B2/en active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008041311A1 (fr) * | 2006-10-02 | 2008-04-10 | Otaki Gas Corporation | Système de génération d'alimentation électrique hybride |
WO2009157342A1 (ja) * | 2008-06-27 | 2009-12-30 | シャープ株式会社 | 電力を電力需要施設に分配する電力制御システム |
WO2013088798A1 (ja) * | 2011-12-15 | 2013-06-20 | パナソニック株式会社 | 電力供給システム |
Non-Patent Citations (1)
Title |
---|
See also references of EP3041109A4 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10079491B2 (en) | 2013-08-30 | 2018-09-18 | Kyocera Corporation | Dispersed power supply system and power conditioner |
WO2023223434A1 (ja) * | 2022-05-17 | 2023-11-23 | オムロン株式会社 | 電力供給システム、全負荷分電盤、電力供給装置、電力供給装置の電力供給制御方法、電力供給路、電力変換装置及び接続方法 |
Also Published As
Publication number | Publication date |
---|---|
EP3041109B1 (en) | 2022-06-29 |
EP3041109A4 (en) | 2017-04-26 |
US10079491B2 (en) | 2018-09-18 |
JPWO2015029431A1 (ja) | 2017-03-02 |
EP3041109A1 (en) | 2016-07-06 |
US20160241040A1 (en) | 2016-08-18 |
JP5781257B2 (ja) | 2015-09-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5781257B2 (ja) | 分散電源システム、パワーコンディショナ | |
US20140327315A1 (en) | Power supply apparatus, power supply system, and method for controlling power supply system | |
WO2016006256A1 (ja) | 発電システムの制御方法、発電システム、及び発電装置 | |
JP6054829B2 (ja) | 分散電源システム、パワーコンディショナ | |
JP6251288B2 (ja) | 電力制御システム、電力制御装置及び電力制御システムの制御方法 | |
JP4948881B2 (ja) | 燃料電池システム | |
WO2014024731A1 (ja) | 連系系統切替装置及び電力制御システム | |
JP2016092850A (ja) | 電力供給システムの制御方法、電力供給機器及び電力供給システム | |
WO2016017124A1 (ja) | 電力制御システムの制御方法、電力制御システム、及び電力制御装置 | |
JP6294494B2 (ja) | 電力供給機器、電力供給システム、および電力供給方法 | |
JP6204259B2 (ja) | 電力制御システム、電力制御装置、および電力制御方法 | |
JP6208335B2 (ja) | 電力制御装置、電力制御方法及び電力制御システム | |
JP6289123B2 (ja) | 発電システム | |
JP2017085813A (ja) | 電力管理装置 | |
JP6694930B2 (ja) | 電力制御システムの制御方法、電力制御システム、及び電力制御装置 | |
JP6170264B2 (ja) | 電力制御装置、電力制御システムおよび電力制御システムの制御方法 | |
US10910839B2 (en) | Power control system and control method for power control system | |
JP6208613B2 (ja) | 発電システム | |
JP6629683B2 (ja) | 発電システム及びその制御方法 | |
JP6475286B2 (ja) | 電力制御装置、電力制御システムおよび電力制御システムの制御方法 | |
JP6208617B2 (ja) | 電力制御システム、電力制御装置、および電力制御システムの制御方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 14839163 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2015523330 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2014839163 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 14915619 Country of ref document: US Ref document number: 2014839163 Country of ref document: EP |