JP2023155129A - Balance control method of energy storing battery for solar power generation - Google Patents
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—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
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/18—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for batteries; for accumulators
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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
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00302—Overcharge protection
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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
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/00306—Overdischarge protection
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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
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
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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
- H02J7/007—Regulation of charging or discharging current or voltage
- H02J7/00712—Regulation of charging or discharging current or voltage the cycle being controlled or terminated in response to electric parameters
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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
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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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
- H01M2010/4271—Battery management systems including electronic circuits, e.g. control of current or voltage to keep battery in healthy state, cell balancing
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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
- 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
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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
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Abstract
Description
本発明は新エネルギー分野に関し、具体的には、太陽光発電用エネルギー貯蔵電池のバランス制御方法に関する。 The present invention relates to the field of new energy, and specifically relates to a method for controlling the balance of energy storage batteries for solar power generation.
太陽光発電の増加に伴い、使用中の弊害が徐々に明らかになってきた。その上、太陽光発電システムの電力出力の変動が大きいなどの要因による再生可能エネルギーの利用と普及に対する制限が日増しに深刻化することから、系統連系型太陽光発電システムにエネルギー貯蔵を配置することは現在の大規模エネルギー貯蔵システムの研究方向の１つとなっている。 With the increase in solar power generation, the negative effects of its use are gradually becoming clearer. Moreover, restrictions on the use and dissemination of renewable energy due to factors such as large fluctuations in the power output of solar power generation systems are becoming more and more serious, so energy storage is deployed in grid-connected solar power generation systems. It has become one of the current research directions for large-scale energy storage systems.
太陽光発電出力の平滑化を目的としたエネルギー貯蔵システムの配置方式では、太陽光発電側に集中型エネルギー貯蔵システムを配置することが一般的であり、従来の研究では、蓄電池パックとスーパーキャパシタを用いたハイブリッドエネルギー貯蔵システムが提案されており、さらに、それを利用して風力発電出力電力を平準化する制御方法が提案されている。提案された制御方法は、エネルギー貯蔵設備が単独で使用される場合の欠点をある程度解決し、補償過程においてグリッドディスパッチの需要を考慮して、風力発電システムの出力電力をよく平準化することもできる。 In the arrangement of energy storage systems aimed at smoothing the output of solar power generation, it is common to place a centralized energy storage system on the solar power generation side, and in conventional research, a storage battery pack and a supercapacitor are A hybrid energy storage system using this system has been proposed, and a control method using this system to level the output power of wind power generation has also been proposed. The proposed control method can to some extent solve the shortcomings when energy storage equipment is used alone, and can also well level the output power of the wind power generation system by considering the grid dispatch demand in the compensation process. .
しかし、従来技術では、ハイブリッドエネルギー貯蔵システムにおける蓄電池パックとスーパーキャパシタからなるエネルギー貯蔵ユニットが、製造の偏差、異なる充放電条件の異常などの原因により、電池に過充電や過放電が生じ、電池の耐用年数が短くなるという問題を考慮していなかった。 However, in the conventional technology, the energy storage unit consisting of a storage battery pack and a supercapacitor in a hybrid energy storage system is not suitable for overcharging or overdischarging the battery due to manufacturing deviations, abnormalities in different charging/discharging conditions, etc. The problem of shortened service life was not considered.
このため、本発明が解決しようとする技術的課題は、過充電や過放電により電池の耐用年数が短くなるという従来技術の問題を解決するために、太陽光発電用エネルギー貯蔵電池のバランス制御方法を提供することである。 Therefore, the technical problem to be solved by the present invention is to provide a balance control method for energy storage batteries for solar power generation in order to solve the problem of the prior art that the service life of batteries is shortened due to overcharging and overdischarging. The goal is to provide the following.
本発明で提供される太陽光発電用エネルギー貯蔵電池のバランス制御方法は、太陽光発電系統連系電力を収集するステップと、太陽光発電系統連系電力に基づいて太陽光発電出力変動率を決定するステップと、太陽光発電出力変動率を予め設定された閾値と比較し、太陽光発電出力変動率と予め設定された閾値との第１比較結果を得るステップと、第１比較結果に基づいて電池充電モードを制御するステップと、を含む。 The balance control method for energy storage batteries for solar power generation provided by the present invention includes the steps of collecting solar power generation grid-connected power, and determining the solar power generation output fluctuation rate based on the solar power generation grid-connected power. a step of comparing the solar power generation output fluctuation rate with a preset threshold value and obtaining a first comparison result between the solar power generation output fluctuation rate and the preset threshold value; and a step of obtaining a first comparison result between the solar power generation output fluctuation rate and the preset threshold value, controlling a battery charging mode.
本発明で提供される太陽光発電用エネルギー貯蔵電池のバランス制御方法は、エネルギー貯蔵有効化状態情報、太陽光発電出力情報、調整可能マージン情報、及び現在の系統連系電力を取得するステップと、エネルギー貯蔵有効化状態情報、太陽光発電出力情報、調整可能マージン情報、及び現在の系統連系電力に基づいて、エネルギー貯蔵実際出力値を決定するステップと、第１比較結果として太陽光発電出力変動率が予め設定された閾値以上である場合、エネルギー貯蔵実際出力値に応じて太陽光発電出力を調整するステップと、をさらに含む。 The balance control method for a solar power generation energy storage battery provided by the present invention includes the steps of acquiring energy storage activation status information, solar power generation output information, adjustable margin information, and current grid-connected power; determining the actual energy storage output value based on the energy storage activation state information, the solar power output information, the adjustable margin information, and the current grid-connected power; and determining the solar power output fluctuation as a first comparison result. If the rate is above a preset threshold, the method further comprises adjusting the solar power output according to the actual energy storage output value.
任意選択的に、エネルギー貯蔵有効化状態情報、太陽光発電出力情報、調整可能マージン情報、及び現在の系統連系電力に基づいて、エネルギー貯蔵実際出力値を決定するステップは、エネルギー貯蔵有効化状態情報としてエネルギー貯蔵セルが太陽光発電出力を有効化し得る場合、太陽光発電出力情報に基づいて現在のエネルギー貯蔵出力目標値を決定するステップと、太陽光発電出力情報及び前記現在の系統連系電力に基づいて、太陽光発電出力に対するエネルギー貯蔵セルの平滑化方式を決定するステップと、太陽光発電出力に対するエネルギー貯蔵セルの平滑化方式によって、現在のエネルギー貯蔵出力目標値と調整可能マージン情報に基づいてエネルギー貯蔵実際出力値を決定するステップと、を含む。 Optionally, determining the energy storage actual output value based on the energy storage enabled state information, the solar power output information, the adjustable margin information, and the current grid-connected power comprises determining the energy storage enabled state. determining a current energy storage output target value based on the solar power output information, if the energy storage cell is capable of enabling solar power output; and the solar power output information and the current grid-connected power; determining a smoothing method of the energy storage cell relative to the solar power output based on the current energy storage output target value and adjustable margin information; and determining an actual energy storage output value.
任意選択的に、エネルギー貯蔵実際出力値に応じて太陽光発電出力を調整するステップは、エネルギー貯蔵実際出力値に応じて太陽光発電出力に電力平滑化を行い、太陽光発電出力電力を目標出力電力に達させるステップを含む。 Optionally, adjusting the solar power output according to the energy storage actual output value performs power smoothing on the solar power output according to the energy storage actual output value to adjust the solar power output power to the target output. including the step of reaching power.
任意選択的に、第１比較結果に基づいて電池充電モードを制御するステップは、第１比較結果として太陽光発電出力変動率が予め設定された閾値以上である場合、発電機で電池を充電するステップと、第１比較結果として太陽光発電出力変動率が予め設定された閾値未満である場合、太陽光発電出力電力を目標出力電力と比較し、太陽光発電出力電力と目標出力電力との第２比較結果を得るステップと、第２比較結果に基づいて、太陽光発電又はエンジンで電池を充電するステップと、を含む。 Optionally, controlling the battery charging mode based on the first comparison result includes charging the battery with the generator if the first comparison result is that the solar power output fluctuation rate is equal to or greater than a preset threshold. If the first comparison result is that the solar power generation output fluctuation rate is less than a preset threshold, the solar power generation output power is compared with the target output power, and the solar power generation output power is compared with the target output power. and charging the battery with solar power or an engine based on the second comparison result.
任意選択的に、第２比較結果に基づいて、太陽光発電及び／又はエンジンで電池を充電することを含む電池充電モードを決定するステップは、第２比較結果として太陽光発電出力電力が目標出力電力よりも大きい場合、太陽光発電出力余裕電力量を電池セル補充必要電力量と比較し、太陽光発電出力余裕電力量と電池セル補充必要電力量との第３比較結果を得るステップと、第３比較結果に基づいて、電池充電モードが、太陽光発電又は太陽光発電と発電機で電池を充電することであると決定するステップと、第２比較結果として太陽光発電出力電力が目標出力電力以下である場合、発電機で電池を充電するステップと、を含む。 Optionally, determining a battery charging mode comprising charging the battery with solar power and/or the engine based on the second comparison result includes determining that the solar power output power is the target output. If it is larger than the electric power, the step of comparing the solar power generation output margin power amount with the battery cell replenishment required power amount and obtaining a third comparison result between the solar power generation output surplus power amount and the battery cell replenishment required power amount; 3. Based on the comparison result, the battery charging mode is determined to be solar power generation or solar power generation and a generator to charge the battery, and the second comparison result is that the solar power output power is the target output power. charging the battery with a generator, if:
任意選択的に、太陽光発電電池又は太陽光発電と発電機で電池を充電するステップは、電池セルの残量を含む電池セル情報を収集するステップであって、電池は複数の電池セルを含むステップと、電池セル残量を予め設定された残量と比較し、電池セル残量が予め設定された残量よりも低いか否かを判断するステップと、電池セル残量が予め設定された残量よりも低い場合、電池セル補充必要電力量を電池セル残量と予め設定された残量との差として算出するステップと、第３比較結果として太陽光発電出力余裕電力量が電池セル補充必要電力量以上である場合、太陽光発電で電池セルを充電するステップと、第３比較結果として太陽光発電出力余裕電力量が電池セル補充必要電力量未満である場合、電池セル補充必要電力量と太陽光発電出力余裕電力量との差を算出し、太陽光発電と発電機で電池セルを充電するステップと、を含む。 Optionally, charging the battery with the solar photovoltaic battery or the solar power and generator includes collecting battery cell information including remaining battery cell power, the battery including a plurality of battery cells. a step of comparing the battery cell remaining capacity with a preset remaining capacity and determining whether the battery cell remaining capacity is lower than the preset remaining capacity; and a step of comparing the battery cell remaining capacity with a preset remaining capacity; If it is lower than the remaining capacity, a step of calculating the required energy for replenishing the battery cell as the difference between the remaining capacity of the battery cell and a preset remaining capacity, and a third comparison result in which the surplus power of the solar power generation output is calculated as the amount of energy required for replenishing the battery cell. If the amount of electricity is more than the required amount of electricity, a step of charging the battery cell with solar power generation, and as a third comparison result, if the surplus amount of solar power output power is less than the amount of electricity required for replenishing the battery cell, the amount of electricity required for replenishing the battery cell. and a step of calculating the difference between the amount of electricity and the surplus solar power output amount, and charging the battery cell with the solar power generation and the generator.
任意選択的に、発電機で電池を充電するステップは、電池セル残量を含む電池セル情報を収集するステップであって、電池は複数の電池セルを含むステップと、電池セル残量を予め設定された残量と比較し、電池セル残量が予め設定された残量よりも低いか否かを判断するステップと、電池セル残量が予め設定された残量よりも低い場合、発電機で電池を充電するステップと、を含む。 Optionally, charging the battery with the generator includes collecting battery cell information including battery cell remaining capacity, wherein the battery includes a plurality of battery cells, and presetting the battery cell remaining capacity. a step of determining whether the remaining battery cell capacity is lower than a preset remaining capacity by comparing the remaining capacity of the battery cell with the remaining capacity of the generator; charging the battery.
本発明は、メモリと、プロセッサと、を含み、メモリとプロセッサは互いに通信可能に接続され、メモリはコンピュータプログラムを記憶することに用いられ、コンピュータプログラムがプロセッサによって実行されることにより、本発明のいずれかの実施例における制御方法をプロセッサに実行させるコンピュータ機器を提供する。 The present invention includes a memory and a processor, the memory and the processor are communicably connected to each other, the memory is used to store a computer program, and the computer program is executed by the processor. Provided is a computer device that causes a processor to execute the control method in any of the embodiments.
本発明は、プロセッサによって実行されると、本発明のいずれかの実施例における制御方法を実現するコンピュータ命令を記憶することに用いられることを特徴とするコンピュータ読み取り可能な記憶媒体を提供する。 The present invention provides a computer readable storage medium characterized in that it is used to store computer instructions that, when executed by a processor, implement the control method in any embodiment of the invention.
本発明の実施例では、太陽光発電系統連系電力を収集し、太陽光発電系統連系電力に基づいて太陽光発電出力変動率を決定し、太陽光発電出力変動率を予め設定された閾値と比較し、太陽光発電出力変動率と予め設定された閾値との第１比較結果を得て、第１比較結果に基づいて電池充電モードを制御することによって、電池セルが常に一定の残量を有するようにし、電池の過充電や過放電により電池の耐用年数が短くなるという問題を解決し、電池の耐用年数を延ばす。 In an embodiment of the present invention, solar power generation grid-connected power is collected, a solar power generation output fluctuation rate is determined based on the solar power generation grid-connected power, and the solar power generation output fluctuation rate is set to a preset threshold value. By comparing the solar power generation output fluctuation rate with a preset threshold value and controlling the battery charging mode based on the first comparison result, the battery cell always maintains a constant remaining capacity. This solves the problem of shortening the service life of the battery due to overcharging or overdischarging the battery, and extends the service life of the battery.
本発明の具体的な実施形態又は従来技術の技術的解決手段をより明確に説明するために、以下、具体的な実施形態又は従来技術の説明に使用する必要がある図面を簡単に説明するが、明らかに、以下で説明される図面は本発明のいくつかの実施形態であり、当業者であれば、創造的な努力を必要とせずに、これらの図面に基づいて他の図面を取得することもできる。
以下、図面を参照しながら本発明の技術的解決手段について明確かつ完全に説明するが、明らかに、説明する実施例は本発明の一部の実施例であり、全ての実施例ではない。当業者が本発明の実施例に基づいて、創造的な努力を必要とせずに得る他の全ての実施例は本発明の特許範囲に属する。 Hereinafter, the technical solution of the present invention will be clearly and completely explained with reference to the drawings, but obviously the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments that a person skilled in the art obtains based on the embodiments of the present invention without any creative efforts fall within the patentable scope of the present invention.
本実施例は、電池のバランス及び太陽光発電出力の平滑化を解決する制御方法を提供し、図１に示すように、該方法は、ステップＳ１～ステップＳ４を含む。 This embodiment provides a control method to solve the problem of battery balance and solar power output smoothing, and as shown in FIG. 1, the method includes steps S1 to S4.
ステップＳ１：太陽光発電系統連系電力を収集し、太陽光発電系統連系電力とは、発電機ユニットの送電線が送電網に接続されるときの電力であり、収集対象となる太陽光発電系統連系電力には、現在の時刻と前の時刻の太陽光発電系統連系電力が含まれる。 Step S1: Collect solar power grid-connected power, solar power grid-connected power is the power when the power transmission line of the generator unit is connected to the power grid, and the solar power generation to be collected The grid-connected power includes the solar power generation grid-connected power at the current time and the previous time.
ステップＳ２：太陽光発電系統連系電力に基づいて太陽光発電出力変動率を決定し、隣接する２つのサンプリング時刻での系統連系電力の差と太陽光発電定格設備容量を計算することで太陽光発電出力変動率を得る。その式は以下の通りである。 Step S2: Determine the solar power generation output fluctuation rate based on the solar power generation grid-connected power, and calculate the difference in the grid-connected power at two adjacent sampling times and the solar power generation rated installed capacity. Obtain the photovoltaic output fluctuation rate. The formula is as follows.
上式において、δは太陽光発電出力変動率、△ＰＰＶは隣接する２つのサンプリング時刻での太陽光発電系統連系電力の差、△ＰＰＶ－Ｎは太陽光発電定格設備容量を表す。 In the above equation, δ represents the solar power generation output fluctuation rate, ΔP PV represents the difference in the solar power generation system interconnected power at two adjacent sampling times, and ΔP PV−N represents the rated solar power generation installed capacity.
ステップＳ３：太陽光発電出力変動率を予め設定された閾値と比較し、太陽光発電出力変動率と予め設定された閾値との第１比較結果を得る。 Step S3: Compare the solar power generation output fluctuation rate with a preset threshold value to obtain a first comparison result between the solar power generation output fluctuation rate and the preset threshold value.
ステップＳ４：第１比較結果に基づいて電池充電モードを制御し、第１比較結果として太陽光発電出力変動率が予め設定された閾値以上である場合、発電機で電池を充電し、第１比較結果として太陽光発電出力変動率が予め設定された閾値未満である場合、太陽光発電出力電力を目標出力電力と比較し、太陽光発電出力電力と目標出力電力との第２比較結果を得る。 Step S4: Control the battery charging mode based on the first comparison result, and if the first comparison result is that the solar power output fluctuation rate is equal to or higher than a preset threshold, charge the battery with the generator and perform the first comparison. As a result, if the solar power generation output fluctuation rate is less than the preset threshold, the solar power generation output power is compared with the target output power to obtain a second comparison result between the solar power generation output power and the target output power.
第２比較結果として太陽光発電出力電力が目標出力電力以下である場合、発電機で電池を充電し、第２比較結果として太陽光発電出力電力が目標出力電力よりも大きい場合、太陽光発電出力余裕電力量△ＰＰＶ－Ｅを、電池セルの現在の残量と予め設定された残量との差△ＰＳ－Ｅである電池セル補充必要電力量と比較し、太陽光発電出力余裕電力量△ＰＰＶ－Ｅと電池セル補充必要電力量△ＰＳ－Ｅとの第３比較結果を得て、第３比較結果に基づいて、太陽光発電で電池を充電するか、太陽光発電と発電機で電池を充電するかを判断する。 If the second comparison result is that the solar power output power is less than or equal to the target output power, the battery is charged by the generator, and if the second comparison result is that the solar power output power is greater than the target output power, the solar power generation output The surplus power amount △P PV-E is compared with the battery cell replenishment required power amount, which is the difference between the current remaining capacity of the battery cell and the preset remaining capacity △P SE-E , and the solar power generation output surplus power is calculated. Obtain the third comparison result between the amount of electricity △P PV-E and the amount of electricity required for replenishing the battery cell △P S-E. Based on the third comparison result, decide whether to charge the battery with solar power generation or with solar power generation. Determine whether to charge the battery with a generator.
第３比較結果として太陽光発電出力余裕電力量が電池セル残量補充必要電力量以上（△ＰＰＶ－Ｅ≧△ＰＳ－Ｅ）である場合、太陽光発電で電池セルを充電する。 As a result of the third comparison, if the solar power generation output surplus power amount is greater than or equal to the required power amount for replenishing the battery cell remaining capacity (ΔP PV-E ≧△P SE ), the battery cell is charged by solar power generation.
第３比較結果として太陽光発電出力余裕電力量が電池セル残量補充必要電力量未満（△ＰＰＶ－Ｅ＜△ＰＳ－Ｅ）である場合、電池セル補充必要電力量と太陽光発電出力余裕電力量との差を算出し、太陽光発電と発電機で電池セルを充電する。 As a result of the third comparison, if the surplus solar power output power is less than the required power for replenishing the battery cell remaining capacity (△P PV-E < △P S-E ), the required power for battery cell replenishment and the solar power output Calculates the difference between the amount of available energy and charges the battery cells using solar power and a generator.
上記の太陽光発電用エネルギー貯蔵電池のバランス制御方法では、太陽光発電と発電機で電池を充電することによって、エネルギー貯蔵セル間でのエネルギーの分布が不均一であるという問題を解決し、電池の耐用年数を延ばし、しかも、太陽光発電による電気の品質を向上させつつエネルギーを節約し、太陽光発電の消費・供給の能力を向上させ、電池のバランス制御の具体的なフローチャートを図２に示す。 The above balance control method for energy storage batteries for solar power generation solves the problem of uneven energy distribution among energy storage cells by charging the battery with solar power generation and a generator, and Figure 2 shows a detailed flowchart of battery balance control. show.
好ましくは、ステップＳ３では、第１比較結果として太陽光発電出力変動率が予め設定された閾値以上である場合、その結果には、エネルギー貯蔵実際出力値に応じて太陽光発電出力電力を平滑化し、太陽光発電出力電力を目標出力電力に達させることがさらに含まれ、太陽光発電出力電力を平滑化する具体的な制御流れを図３に示す。 Preferably, in step S3, if the first comparison result is that the solar power output fluctuation rate is equal to or higher than a preset threshold value, the result includes smoothing the solar power output power according to the actual energy storage output value. , further includes making the solar power generation output power reach the target output power, and a specific control flow for smoothing the solar power generation output power is shown in FIG.
具体的には、エネルギー貯蔵実際出力値に応じて太陽光発電出力に電力平滑化を行い、太陽光発電出力電力を目標出力電力に達させることは、エネルギー貯蔵有効化状態情報、太陽光発電出力情報、調整可能マージン情報、及び現在の系統連系電力を取得することと、エネルギー貯蔵有効化状態情報、太陽光発電出力情報、調整可能マージン情報、及び現在の系統連系電力に基づいて、エネルギー貯蔵実際出力値を決定することと、コントローラはエネルギー貯蔵実際出力値をエネルギー管理システム（ＥＭＳ：Ｅｎｅｒｇｙ Ｍａｎａｇｅｍｅｎｔ Ｓｙｓｔｅｍ）に送信し、ＥＭＳは太陽光発電出力に電力平滑化を行って、目標出力電力値に達することと、を含む。 Specifically, performing power smoothing on the solar power output according to the energy storage actual output value and making the solar power output power reach the target output power is based on the energy storage activation status information, the solar power output information, adjustable margin information, and current grid-tied power; and energy storage activation state information, solar power output information, adjustable margin information, and current grid-tied power. Determining the storage actual output value, the controller sends the energy storage actual output value to an Energy Management System (EMS), and the EMS performs power smoothing on the solar power output to obtain the target output power value. including reaching.
具体的には、エネルギー貯蔵有効化状態情報、太陽光発電出力情報、調整可能マージン情報、及び現在の系統連系電力に基づいて、エネルギー貯蔵実際出力値を決定することは、エネルギー貯蔵有効化状態情報に基づいて、エネルギー貯蔵セルが太陽光発電出力を有効化し得るか否かを判断し、太陽光発電出力を有効化し得る場合、エネルギー貯蔵セルで太陽光発電出力を平滑化し、それ以外の場合、太陽光発電平滑化操作を行わないことと、太陽光発電出力情報に基づいて現在のエネルギー貯蔵出力目標値を算出することと、を含む。調整可能マージン情報に基づいて最大充電有効値又は最大放電有効値を得る。まず、エネルギー貯蔵セルが太陽光発電を平滑化できる場合、太陽光発電出力情報と組み合わせて、ローパスフィルタリングアルゴリズムを採用して現在のエネルギー貯蔵出力目標値を計算し、即ち、ローパスフィルタリングアルゴリズムを採用して現在の太陽光発電系統連系電力と現在のエネルギー貯蔵出力目標値を分解し、次に、現在の太陽光発電出力電力と現在の太陽光発電系統連系電力の大きさを判断し、現在の太陽光発電出力電力が現在の太陽光発電系統連系電力よりも大きい場合、エネルギー貯蔵セルに現在の太陽光発電出力余裕電力量（エネルギー貯蔵セルを充電することで太陽光発電出力を平滑化することに相当）を記憶する必要があり、このとき、現在のエネルギー貯蔵出力目標値と最大充電有効値の大きさをさらに判断し、現在のエネルギー貯蔵出力目標値＞最大充電有効値の場合、エネルギー貯蔵実際出力値が最大充電有効値に等しく、現在のエネルギー貯蔵出力目標値＜最大充電有効値の場合、エネルギー貯蔵実際出力値が現在のエネルギー貯蔵出力目標値に等しく、現在の太陽光発電出力電力が現在の太陽光発電系統連系電力未満である場合、エネルギー貯蔵セルを放電することで現在の太陽光発電系統連系電力と現在の太陽光発電出力電力の差を補償し（エネルギー貯蔵セルを放電することで太陽光発電出力を平滑化することに相当）、このとき、現在のエネルギー貯蔵出力目標値と最大放電有効値の大きさをさらに判断し、現在のエネルギー貯蔵出力目標値＞最大放電有効値の場合、エネルギー貯蔵実際出力値が最大放電有効値に等しく、現在のエネルギー貯蔵出力目標値＜最大放電有効値の場合、エネルギー貯蔵実際出力値が現在のエネルギー貯蔵出力目標値に等しく、エネルギー貯蔵実際出力値を決定する過程は具体的には図４に示され、最後に、エネルギー貯蔵セルに対する充電又は放電によって太陽光発電出力への平滑化を行い、太陽光発電出力電力が系統連系の要件を満たすようにし、これによって、太陽光発電系統連系による変動を低減させる。 Specifically, determining the energy storage actual output value based on the energy storage activation state information, the solar power output information, the adjustable margin information, and the current grid-connected power is based on the energy storage activation state. Based on the information, determining whether the energy storage cell can enable solar power output, and if so, smoothing the solar power output at the energy storage cell; otherwise; , not performing a solar power generation smoothing operation, and calculating a current energy storage output target value based on the solar power output information. A maximum charging effective value or a maximum discharging effective value is obtained based on the adjustable margin information. First, if the energy storage cell can smooth the solar power generation, in combination with the solar power output information, a low-pass filtering algorithm is adopted to calculate the current energy storage output target value, that is, a low-pass filtering algorithm is adopted. Decomposes the current solar power generation grid-connected power and the current energy storage output target value, then determines the current solar power generation output power and the current solar power generation grid-connected power, and calculates the current solar power generation grid-connected power. If the solar power output power of At this time, it is necessary to further determine the magnitude of the current energy storage output target value and the maximum charging effective value, and if the current energy storage output target value > the maximum charging effective value, If the energy storage actual output value is equal to the maximum charging effective value and the current energy storage output target value < the maximum charging effective value, then the energy storage actual output value is equal to the current energy storage output target value, and the current solar power output If the power is less than the current PV grid-tied power, it compensates for the difference between the current PV grid-tied power and the current PV output power by discharging the energy storage cell (the energy storage cell (equivalent to smoothing the solar power generation output by discharging the current energy storage output), at this time, the magnitude of the current energy storage output target value and the maximum discharge effective value is further determined, and the current energy storage output target value > maximum For the discharge effective value, the energy storage actual output value is equal to the maximum discharge effective value, and if the current energy storage output target value < the maximum discharge effective value, the energy storage actual output value is equal to the current energy storage output target value; The process of determining the actual energy storage output value is specifically shown in Figure 4.Finally, the solar power generation output is smoothed by charging or discharging the energy storage cells, and the solar power output power is connected to the grid. system requirements, thereby reducing fluctuations due to solar power grid interconnection.
好ましくは、ステップＳ４では、太陽光発電で電池セルを充電することは、電池セル情報を収集することと、電池セル残量を予め設定された残量と比較し、電池セル残量が予め設定された残量よりも低いか否かを判断することと、電池セル残量が予め設定された残量よりも低い場合、電池セル残量と予め設定された残量との差として電池セル補充必要電力量を算出することと、太陽光発電出力余裕電力量△ＰＰＶ－Ｅを電池セル補充必要電力量△ＰＳ－Ｅと比較し、太陽光発電出力余裕電力量△ＰＰＶ－Ｅと電池セル補充必要電力量△ＰＳ－Ｅとの第３比較結果を得て、第３比較結果に基づいて、切り替え回路を制御して太陽光発電で電池を充電するか、太陽光発電と発電機で電池を充電するかを判断することと、第３比較結果として太陽光発電出力余裕電力量が電池セル補充必要電力量以上（△ＰＰＶ－Ｅ≧△ＰＳ－Ｅ）である場合、太陽光発電で電池セルを充電し、電池残量が予め設定された残量以上である場合、コントローラは切り替え回路を制御して電池セルに対する充電を終了することと、を含み、太陽光発電で電池を充電する具体的な制御流れを図５に示す。 Preferably, in step S4, charging the battery cell with solar power generation includes collecting battery cell information, comparing the remaining battery cell amount with a preset remaining amount, and determining whether the remaining battery cell amount is the preset amount. If the battery cell remaining capacity is lower than the preset remaining capacity, battery cell replenishment is performed as the difference between the battery cell remaining capacity and the preset remaining capacity. Calculating the required amount of electricity and comparing the surplus solar power output power amount △P PV-E with the required power amount for battery cell replenishment △P SE-E , and calculating the surplus power amount △P PV-E Obtain the third comparison result with the battery cell replenishment required power amount △P S-E , and based on the third comparison result, control the switching circuit to charge the battery with solar power generation, or switch between solar power generation and power generation. The third comparison result is that if the surplus solar power output power is greater than the required power for battery cell replenishment (△P PV-E ≧△P S-E ), The controller controls a switching circuit to terminate charging of the battery cell when the battery cell is charged by the solar power generation and the battery remaining capacity is equal to or higher than a preset remaining capacity; FIG. 5 shows a specific control flow for charging the battery.
好ましくは、ステップＳ４では、太陽光発電と発電機で電池セルを充電することは、電池セル情報を収集することと、電池セル残量を予め設定された残量と比較し、電池セル残量が予め設定された残量よりも低いか否かを判断することと、電池セル残量が予め設定された残量よりも低い場合、電池セル残量と予め設定された残量との差として電池セル補充必要電力量を計算することと、太陽光発電出力余裕電力量△ＰＰＶ－Ｅを電池セル補充必要電力量△ＰＳ－Ｅと比較し、太陽光発電出力余裕電力量△ＰＰＶ－Ｅと電池セル補充必要電力量△ＰＳ－Ｅとの第３比較結果を得て、第３比較結果に基づいて、切り替え回路を制御して太陽光発電で電池を充電するか、太陽光発電と発電機で電池を充電するかを判断することと、第３比較結果として太陽光発電出力余裕電力量が電池セル補充必要電力量未満（△ＰＰＶ－Ｅ＜△ＰＳ－Ｅ）である場合、電池セル補充必要電力量と太陽光発電出力余裕電力量との差を算出し、太陽光発電と発電機で電池セルを充電し、電池残量が予め設定された残量以上である場合、コントローラは切り替え回路を制御して電池セルに対する充電を終了することと、を含み、太陽光発電と発電機で電池を充電する具体的な制御流れを図６に示す。 Preferably, in step S4, charging the battery cells with solar power generation and a generator includes collecting battery cell information, comparing the remaining battery cell amount with a preset remaining amount, and determining the remaining battery cell amount. is lower than the preset remaining capacity, and if the remaining battery cell capacity is lower than the preset remaining capacity, the difference between the battery cell remaining capacity and the preset remaining capacity is determined. By calculating the required energy for battery cell replenishment and comparing the solar power generation output surplus power amount △P PV-E with the battery cell replenishment required power amount △P SE-E , the solar power generation output surplus power amount △P PV A third comparison result is obtained between -E and the battery cell replenishment required power amount △ P Determining whether to charge the battery with power generation or a generator, and as a third comparison result, if the surplus solar power output power is less than the required power for battery cell replenishment (△P PV-E < △P S-E ) If so, calculate the difference between the battery cell replenishment required power amount and the solar power generation output surplus power amount, charge the battery cell with solar power generation and a generator, and check that the remaining battery power is equal to or higher than the preset remaining power. In this case, the controller controls the switching circuit to terminate charging of the battery cell, and a specific control flow for charging the battery using solar power generation and a generator is shown in FIG.
好ましくは、ステップＳ４では、発電機で電池を充電することは、電池単位である電池セルの情報を収集することと、電池セル残量を予め設定された残量と比較し、電池セル残量が予め設定された残量よりも低いか否かを判断することと、電池セル残量が予め設定された残量よりも低い場合、コントローラは切り替え回路を制御して発電機で電池を充電し、電池残量が予め設定された残量以上である場合、コントローラは切り替え回路を制御して電池セルに対する充電を終了することと、を含み、発電機で電池を充電する具体的な制御流れを図７に示す。 Preferably, in step S4, charging the battery with the generator includes collecting information on a battery cell, which is a battery unit, and comparing the remaining amount of the battery cell with a preset remaining amount, and determining the remaining amount of the battery cell. is lower than a preset remaining capacity, and if the battery cell remaining capacity is lower than a preset remaining capacity, the controller controls a switching circuit to charge the battery with the generator. , when the remaining battery level is equal to or higher than a preset remaining level, the controller controls a switching circuit to terminate charging of the battery cell, and provides a specific control flow for charging the battery with the generator. It is shown in FIG.
本実施例はコンピュータ機器を提供し、図８に示すように、該コンピュータ機器は、少なくとも１つのプロセッサ４１、少なくとも１つの通信インターフェース４２、少なくとも１つの通信バス４３、及び少なくとも１つのメモリ４４を含んでもよく、これらのうち、通信インターフェース４２はディスプレイ（Ｄｉｓｐｌａｙ）、キーボード（Ｋｅｙｂｏａｒｄ）を含んでもよく、通信インターフェース４２は任意により標準有線インターフェース、無線インターフェースを含んでもよい。メモリ４４は高速ＲＡＭメモリ（Ｒａｎｄｏｍ Ａｃｃｅｓｓ Ｍｅｍｏｒｙ、揮発性ランダム・アクセス・メモリ）であってもよいし、不揮発性メモリ（ｎｏｎ－ｖｏｌａｔｉｌｅ ｍｅｍｏｒｙ）、例えば少なくとも１つの磁気ディスクメモリであってもよい。メモリ４４は任意により前述プロセッサ４１から離れた少なくとも１つの記憶装置であってもよい。プロセッサ４１は図８に記載の装置と組み合わせてもよく、メモリ４４にアプリケーションプログラムが記憶され、プロセッサ４１はメモリ４４に記憶されたプログラムコードを呼び出して、上記の任意の方法の実施例における太陽光発電用エネルギー貯蔵電池のバランス制御のステップを実行することに用いられる。 This embodiment provides a computer device, as shown in FIG. 8, the computer device includes at least one processor 41, at least one communication interface 42, at least one communication bus 43, and at least one memory 44. Of these, the communication interface 42 may include a display and a keyboard, and the communication interface 42 may optionally include a standard wired interface or a wireless interface. The memory 44 may be a high speed RAM memory (Random Access Memory) or a non-volatile memory, such as at least one magnetic disk memory. Memory 44 may optionally be at least one storage device separate from processor 41. The processor 41 may be combined with the apparatus described in FIG. 8, in which an application program is stored in the memory 44, and the processor 41 calls the program code stored in the memory 44 to generate sunlight in any of the method embodiments described above. It is used to perform the step of balance control of energy storage batteries for power generation.
通信バス４３は周辺コンポーネント相互接続（ｐｅｒｉｐｈｅｒａｌ ｃｏｍｐｏｎｅｎｔｉｎｔｅｒｃｏｎｎｅｃｔ、略語ＰＣＩ）バス又は拡張業界標準アーキテクチャ（ｅｘｔｅｎｄｅｄ ｉｎｄｕｓｔｒｙ ｓｔａｎｄａｒｄａｒｃｈｉｔｅｃｔｕｒｅ、略語ＥＩＳＡ）バスなどであってもよい。通信バス４３はアドレスバス、データバス、制御バス等に分けられてもよい。説明しやすさから、図８においては、１本の太線だけで表すが、１本のバス又は１つのタイプのバスしかないわけではない。 Communication bus 43 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, or the like. The communication bus 43 may be divided into an address bus, a data bus, a control bus, etc. For ease of explanation, only one thick line is shown in FIG. 8, but this does not mean that there is only one bus or one type of bus.
メモリ４４は揮発性メモリ（英語：ｖｏｌａｔｉｌｅ ｍｅｍｏｒｙ）、例えばランダム・アクセス・メモリ（英語：ｒａｎｄｏｍ－ａｃｃｅｓｓ ｍｅｍｏｒｙ、略語：ＲＡＭ）を含んでもよく、不揮発性メモリ（英語：ｎｏｎ－ｖｏｌａｔｉｌｅ ｍｅｍｏｒｙ）、例えばフラッシュメモリ（英語：ｆｌａｓｈ ｍｅｍｏｒｙ）、ハードディスク（英語：ｈａｒｄ ｄｉｓｋｄｒｉｖｅ、略語：ＨＤＤ）又はソリッドステートハードディスク（英語：ｓｏｌｉｄ－ｓｔａｔｅ ｄｒｉｖｅ、略語：ＳＳＤ）を含んでもよく、上記の種類のメモリの組み合わせを含んでもよい。 The memory 44 may include volatile memory, such as random-access memory (RAM), or non-volatile memory, such as flash memory. It may include a memory (English: flash memory), a hard disk drive (English: hard disk drive, abbreviation: HDD) or a solid-state hard disk (English: solid-state drive, abbreviation: SSD), or a combination of the above types of memory. good.
プロセッサ４１は中央処理装置（英語：ｃｅｎｔｒａｌ ｐｒｏｃｅｓｓｉｎｇ ｕｎｉｔ、略語：ＣＰＵ）、ネットワークプロセッサ（英語：ｎｅｔｗｏｒｋ ｐｒｏｃｅｓｓｏｒ、略語：ＮＰ）又はＣＰＵとＮＰの組み合わせであってもよい。 The processor 41 may be a central processing unit (English: central processing unit, abbreviation: CPU), a network processor (English: network processor, abbreviation: NP), or a combination of CPU and NP.
プロセッサ４１はハードウェアチップをさらに含んでもよい。上記ハードウェアチップは特定用途向け集積回路（英語：ａｐｐｌｉｃａｔｉｏｎ－ｓｐｅｃｉｆｉｃ ｉｎｔｅｇｒａｔｅｄ ｃｉｒｃｕｉｔ、略語： ＡＳＩＣ）、プログラムロジックデバイス（英語：ｐｒｏｇｒａｍｍａｂｌｅ ｌｏｇｉｃ ｄｅｖｉｃｅ、略語：ＰＬＤ）又はそれらの組み合わせであってもよい。上記ＰＬＤは複雑なプログラムロジックデバイス（英語：ｃｏｍｐｌｅｘ ｐｒｏｇｒａｍｍａｂｌｅ ｌｏｇｉｃ ｄｅｖｉｃｅ、略語：ＣＰＬＤ）、フィールド・プログラマブル・ゲート・アレイ（英語：ｆｉｅｌｄ－ｐｒｏｇｒａｍｍａｂｌｅ ｇａｔｅ ａｒｒａｙ、略語：ＦＰＧＡ）、ジェネリック配列ロジック（英語：ｇｅｎｅｒｉｃ ａｒｒａｙｌｏｇｉｃ、略語：ＧＡＬ）又はそれらの任意の組み合わせであってもよい。任意選択的に、メモリ４４はプログラム命令を記憶することにも用いられる。プロセッサ４１はプログラム命令を呼び出して、本発明のいずれかの実施例における太陽光発電用エネルギー貯蔵電池のバランス制御方法を実現してもよい。 Processor 41 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The PLDs mentioned above are complex programmable logic devices (CPLD), field-programmable gate arrays (FPGA), and generic array logic (English: generic ar raylogic , abbreviation: GAL) or any combination thereof. Optionally, memory 44 is also used to store program instructions. The processor 41 may invoke program instructions to implement the solar power energy storage battery balance control method in any embodiment of the present invention.
本実施例はコンピュータ読み取り可能な記憶媒体を提供し、コンピュータ記憶媒体にコンピュータ実行可能な命令が記憶され、該コンピュータ実行可能な命令は上記のいずれかの方法の実施例における太陽光発電用エネルギー貯蔵電池のバランス制御方法を実行することができる。記憶媒体は磁気ディスク、コンパクトディスク、読み取り専用メモリ（ＲＯＭ：Ｒｅａｄ－Ｏｎｌｙ Ｍｅｍｏｒｙ）、ランダム・アクセス・メモリ（ＲＡＭ：Ｒａｎｄｏｍ Ａｃｃｅｓｓ Ｍｅｍｏｒｙ）、フラッシュメモリ（Ｆｌａｓｈ Ｍｅｍｏｒｙ）、ハードディスク（Ｈａｒｄ Ｄｉｓｋ Ｄｒｉｖｅ、略語：ＨＤＤ）又はソリッドステートハードディスク（ＳＳＤ：Ｓｏｌｉｄ－Ｓｔａｔｅ Ｄｒｉｖｅ）などであってもよく、記憶媒体は上記の種類のメモリの組み合わせをさらに含んでもよい。 This embodiment provides a computer-readable storage medium having computer-executable instructions stored on the computer-readable storage medium, the computer-executable instructions for storing energy for solar power generation in an embodiment of any of the methods described above. A battery balance control method can be implemented. Storage media include magnetic disks, compact disks, read-only memory (ROM), random access memory (RAM), flash memory, and hard disk drives (abbreviation: HDD). ) or a solid-state hard disk (SSD), and the storage medium may further include a combination of the above types of memory.
もちろん、上記実施例は明確に説明するために例示するものに過ぎず、実施形態を限定するものではない。当業者であれば、上記説明に基づいて他の様々な形態の変化や変更を行ってもよい。ここでは、全ての実施形態を網羅する必要がなく、また、これは不可能なことである。以上から導出される明らかな変化や変更も本発明の特許範囲に含まれるものとする。
Of course, the above embodiments are merely illustrative for clarity and do not limit the embodiments. Those skilled in the art may make various other changes and modifications based on the above description. It is not necessary or possible to cover all embodiments here. Obvious changes and modifications derived from the above shall also be included within the patent scope of the present invention.
Claims (7)
太陽光発電系統連系電力を収集するステップと、
前記太陽光発電系統連系電力に基づいて太陽光発電出力変動率を決定するステップと、
前記太陽光発電出力変動率を予め設定された閾値と比較し、前記太陽光発電出力変動率と前記予め設定された閾値との第１比較結果を得るステップと、
前記第１比較結果に基づいて電池充電モードを制御するステップと、を含み、
前記第１比較結果に基づいて電池充電モードを制御する前記ステップは、
前記第１比較結果として前記太陽光発電出力変動率が前記予め設定された閾値以上である場合、発電機で電池を充電するステップと、
前記第１比較結果として前記太陽光発電出力変動率が前記予め設定された閾値未満である場合、太陽光発電出力電力を目標出力電力と比較し、太陽光発電出力電力と目標出力電力との第２比較結果を得るステップと、
前記第２比較結果に基づいて、太陽光発電及び／又はエンジンで電池を充電することを含む電池充電モードを決定するステップと、を含み、
前記第２比較結果に基づいて、電池充電モードを決定する前記ステップは、
前記第２比較結果として前記太陽光発電出力電力が目標出力電力よりも大きい場合、太陽光発電出力余裕電力量を電池セル補充必要電力量と比較し、太陽光発電出力余裕電力量と電池セル補充必要電力量との第３比較結果を得るステップと、
第３比較結果に基づいて、前記電池充電モードが、太陽光発電又は太陽光発電と発電機で電池を充電することであると決定するステップと、
前記第２比較結果として前記太陽光発電出力電力が目標出力電力以下である場合、前記電池充電モードが発電機で電池を充電することであると決定するステップと、を含み、
太陽光発電又は太陽光発電と発電機で電池を充電する前記ステップは、
前記電池は複数の電池セルを含み、前記電池セルの残量を含む電池セル情報を収集するステップと、
前記電池セル残量を予め設定された残量と比較し、前記電池セル残量が前記予め設定された残量よりも低いか否かを判断するステップと、
前記電池セル残量が前記予め設定された残量よりも低い場合、電池セル補充必要電力量を前記電池セル残量と前記予め設定された残量との差として算出するステップと、
前記第３比較結果として前記太陽光発電出力余裕電力量が前記電池セル補充必要電力量以上である場合、太陽光発電で前記電池セルを充電するステップと、
前記第３比較結果として前記太陽光発電出力余裕電力量が前記電池セル補充必要電力量未満である場合、前記電池セル補充必要電力量と太陽光発電出力余裕電力量との差を算出し、太陽光発電と発電機で電池セルを充電するステップと、を含むことを特徴とする太陽光発電用エネルギー貯蔵電池のバランス制御方法。 A balance control method for an energy storage battery for solar power generation, the method comprising:
a step of collecting solar power grid-connected power;
determining a solar power generation output fluctuation rate based on the solar power generation grid-connected power;
Comparing the solar power generation output fluctuation rate with a preset threshold value to obtain a first comparison result between the solar power generation output fluctuation rate and the preset threshold value;
controlling a battery charging mode based on the first comparison result;
The step of controlling the battery charging mode based on the first comparison result includes:
If the first comparison result is that the solar power generation output fluctuation rate is equal to or higher than the preset threshold, charging the battery with a generator;
If the first comparison result is that the solar power generation output fluctuation rate is less than the preset threshold, the solar power generation output power is compared with the target output power, and the difference between the solar power generation output power and the target output power is determined. 2. Obtaining a comparison result;
determining a battery charging mode including charging the battery with solar power generation and/or an engine, based on the second comparison result;
The step of determining a battery charging mode based on the second comparison result includes:
If the second comparison result is that the solar power generation output power is larger than the target output power, the solar power generation output surplus power amount is compared with the battery cell replenishment required power amount, and the solar power generation output surplus power amount and the battery cell replenishment amount are determined. obtaining a third comparison result with the required amount of electricity;
determining that the battery charging mode is to charge the battery with solar power generation or solar power generation and a generator, based on a third comparison result;
If the second comparison result is that the solar power output power is less than or equal to the target output power, determining that the battery charging mode is to charge the battery with a generator;
The step of charging the battery with solar power or solar power and a generator includes:
The battery includes a plurality of battery cells, and collecting battery cell information including remaining capacity of the battery cells;
Comparing the battery cell remaining capacity with a preset remaining capacity and determining whether the battery cell remaining capacity is lower than the preset remaining capacity;
If the battery cell remaining capacity is lower than the preset remaining capacity, calculating the battery cell replenishment required power amount as the difference between the battery cell remaining capacity and the preset remaining capacity;
If, as a result of the third comparison, the solar power generation output margin power amount is greater than or equal to the battery cell replenishment required power amount, charging the battery cell with solar power generation;
As a result of the third comparison, if the solar power generation output margin power amount is less than the battery cell replenishment required power amount, the difference between the battery cell replenishment required power amount and the solar power generation output margin power amount is calculated, and the solar power generation output surplus power amount is calculated. A method for controlling the balance of an energy storage battery for solar power generation, the method comprising: charging a battery cell with photovoltaic power generation and a generator.
前記エネルギー貯蔵有効化状態情報、前記太陽光発電出力情報、前記調整可能マージン情報、及び前記現在の系統連系電力に基づいて、エネルギー貯蔵実際出力値を決定するステップと、
前記第１比較結果として前記太陽光発電出力変動率が予め設定された閾値以上である場合、エネルギー貯蔵実際出力値に応じて太陽光発電出力を調整するステップと、をさらに含むことを特徴とする請求項１に記載の制御方法。 obtaining energy storage enablement status information, solar power output information, adjustable margin information, and current grid-tied power;
determining an actual energy storage output value based on the energy storage enablement status information, the solar power output information, the adjustable margin information, and the current grid-connected power;
If the first comparison result is that the solar power output fluctuation rate is equal to or higher than a preset threshold, the method further comprises the step of adjusting the solar power output according to the actual energy storage output value. The control method according to claim 1.
エネルギー貯蔵有効化状態情報としてエネルギー貯蔵セルが太陽光発電出力を有効化し得る場合、太陽光発電出力情報に基づいて現在のエネルギー貯蔵出力目標値を決定するステップと、
前記太陽光発電出力情報及び前記現在の系統連系電力に基づいて、太陽光発電出力に対する前記エネルギー貯蔵セルの平滑化方式を決定するステップと、
前記太陽光発電出力に対する前記エネルギー貯蔵セルの平滑化方式によって、前記現在のエネルギー貯蔵出力目標値と調整可能マージン情報に基づいて、エネルギー貯蔵実際出力値を決定するステップと、を含むことを特徴とする請求項２に記載の制御方法。 The step of determining an actual energy storage output value based on the energy storage enablement status information, the solar power output information, the adjustable margin information, and the current grid-connected power includes:
determining a current energy storage output target value based on the solar power output information, if the energy storage cell is capable of enabling solar power output as the energy storage activation state information;
determining a smoothing method of the energy storage cell for solar power output based on the solar power output information and the current grid-connected power;
determining an actual energy storage output value based on the current energy storage output target value and adjustable margin information according to a smoothing method of the energy storage cell with respect to the solar power output. The control method according to claim 2.
前記エネルギー貯蔵実際出力値に応じて太陽光発電出力に電力平滑化を行い、太陽光発電出力電力を目標出力電力に達させるステップを含む、ことを特徴とする請求項２に記載の制御方法。 Said step of adjusting the solar power output according to the energy storage actual output value includes:
3. The control method according to claim 2, further comprising the step of performing power smoothing on the solar power output according to the energy storage actual output value to make the solar power output power reach a target output power.
電池セル残量を含む電池セル情報を収集するステップであって、電池は複数の前記電池セルを含むステップと、
前記電池セル残量を予め設定された残量と比較し、前記電池セル残量が前記予め設定された残量よりも低いか否かを判断するステップと、
前記電池セル残量が前記予め設定された残量よりも低い場合、発電機で電池を充電するステップと、を含むことを特徴とする請求項１に記載の制御方法。 Said step of charging the battery with a generator includes:
Collecting battery cell information including battery cell remaining capacity, the battery including a plurality of the battery cells;
Comparing the battery cell remaining capacity with a preset remaining capacity and determining whether the battery cell remaining capacity is lower than the preset remaining capacity;
2. The control method according to claim 1, further comprising the step of: charging the battery with a generator when the battery cell remaining capacity is lower than the preset remaining capacity.
前記メモリはコンピュータプログラムを記憶するために用いられ、前記コンピュータプログラムは前記プロセッサによって実行されると、請求項１～５のいずれか１項に記載の制御方法を前記プロセッサに実行させることを特徴とするコンピュータ機器。 a memory and a processor, the memory and the processor being communicably connected to each other;
The memory is used to store a computer program, and the computer program, when executed by the processor, causes the processor to execute the control method according to any one of claims 1 to 5. computer equipment.
A computer-readable storage medium, characterized in that it is used to store computer instructions which, when executed by a processor, implement the control method according to any one of claims 1 to 5.
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