JP2016124302A - Railway feeding system and railway feeding method - Google Patents
Railway feeding system and railway feeding method Download PDFInfo
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- JP2016124302A JP2016124302A JP2014263808A JP2014263808A JP2016124302A JP 2016124302 A JP2016124302 A JP 2016124302A JP 2014263808 A JP2014263808 A JP 2014263808A JP 2014263808 A JP2014263808 A JP 2014263808A JP 2016124302 A JP2016124302 A JP 2016124302A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
- B60M3/00—Feeding power to supply lines in contact with collector on vehicles; Arrangements for consuming regenerative power
- B60M3/06—Arrangements for consuming regenerative power
Abstract
Description
本発明は鉄道き電システム及び鉄道き電制御方法に関する。 The present invention relates to a railway feeding system and a railway feeding control method.
近年の環境・エネルギー問題の深刻化により、省エネルギー化を実現する技術が重要視されている。その１つとして、ブレーキ作動時に発生する回生電力の有効活用が注目されている。電気鉄道において、回生電力は架線に供給することで、他列車の力行に活用される。しかしながら、力行車両が回生車両と同一のき電区間を走行していない場合、回生電力を活用することができない。したがって、回生電力を有効に活用する為には異なるき電区間を走行する力行車両でも回生電力を活用可能とする技術が必要だった。このような課題を解決する技術として、特許文献１の「電鉄き電線の制御およびシステム」がある。この公報では、電力融通装置を介して異なるき電区間を接続することで、回生車両が走行するき電区間から力行車両が走行する方面のき電区間へと電力を供給し、回生電力を有効に活用している。 With the recent seriousness of environmental and energy problems, technology that realizes energy saving is regarded as important. As one of them, the effective use of regenerative power generated when the brake is operated has attracted attention. In electric railways, regenerative power is supplied to overhead lines and used for powering other trains. However, when the power running vehicle is not traveling in the same feeding section as the regenerative vehicle, the regenerative power cannot be used. Therefore, in order to make effective use of regenerative power, a technology that makes it possible to use regenerative power even in powering vehicles that travel in different feeder sections is necessary. As a technique for solving such a problem, there is "Control and system of electric railway feeder" of Patent Document 1. In this publication, by connecting different feeding sections through a power interchange device, power is supplied from the feeding section where the regenerative vehicle travels to the feeding section where the powering vehicle travels, and the regenerative power is made effective. It is utilized for.
しかしながら、特許文献１では、１つのき電区間に対し隣接する両方面のき電区間にそれぞれ電力融通装置を設置した場合、隣接する両方面のいずれのき電区間に回生電力を供給するかを適切に定めることができない。この為、回生電力に対し電力融通装置の出力が不足し、十分に活用できない事象が発生する。本発明の課題は、回生車両が走行するき電区間に隣接する２つのき電区間をそれぞれ力行車両が走行する場合に、回生電力を隣接する２つのき電区間に過不足なく配分することで、回生電力を有効に活用することである。 However, in Patent Document 1, when a power interchange device is installed in each feeding section on both sides adjacent to one feeding section, it is determined which of the feeding sections on both sides to supply regenerative power. It cannot be determined properly. For this reason, the output of a power interchange apparatus is insufficient with respect to regenerative electric power, and the event which cannot fully be used occurs. An object of the present invention is to distribute regenerative power to two adjacent feeding sections without excess or deficiency when a powering vehicle runs in two feeding sections adjacent to the feeding section where the regenerative vehicle travels. The effective use of regenerative power.
そこで上記課題を解決する為に本発明は、少なくとも３つ以上のき電区間に流れる電力の融通を制御する制御装置を備え、前記制御装置は、前記き電区間で走行する車両から得られる回生電力と前記き電区間で走行する車両が消費する力行電力に基づいて、所定のき電区間から他のき電区間に対して前記回生電力を融通する電力融通装置を制御することを特徴とする鉄道き電システムを提供する。 Therefore, in order to solve the above problems, the present invention includes a control device that controls accommodation of power flowing in at least three feeding sections, and the control device is a regeneration unit that is obtained from a vehicle traveling in the feeding section. Controlling a power accommodation device that accommodates the regenerative power from a predetermined feeding section to another feeding section based on electric power and power running power consumed by a vehicle traveling in the feeding section. Provide railway power systems.
本発明により、回生電力を隣接する２つのき電区間に過不足なく配分することで、回生電力を有効に活用することができる。 According to the present invention, the regenerative power can be effectively utilized by distributing the regenerative power to two adjacent feeding sections without excess or deficiency.
以下、本発明の実施に好適な実施例について説明する。尚、下記はあくまでも実施の例に過ぎず、下記具体的内容に発明自体が限定されることを意図する趣旨ではない。 Hereinafter, preferred examples for carrying out the present invention will be described. It should be noted that the following is merely an example of implementation and is not intended to limit the invention itself to the following specific contents.
図１は、本発明の実施例１に係わるき電システムの構成を示す図である。 FIG. 1 is a diagram showing a configuration of a power feeding system according to Embodiment 1 of the present invention.
第１の変電所１０１と、第１の変電所１０１から電力を供給される第１のき電線１０２と、第２の変電所１０３と、第２の変電所１０３から電力を供給される第２のき電線１０４と、第３の変電所１０５と、第３の変電所１０５から電力を供給される第３のき電線１０６と、第１のき電線１０２と第２のき電線１０４に接続された第１の電力融通装置１０７と、第２のき電線１０４と第３のき電線１０６に接続された第２の電力融通装置１０８が設置されている。 The first substation 101, the first feeder 102 supplied with power from the first substation 101, the second substation 103, and the second supplied with power from the second substation 103 Connected to the feeder 104, the third substation 105, the third feeder 106 supplied with power from the third transformer 105, the first feeder 102 and the second feeder 104. In addition, a first power accommodation apparatus 107 and a second power accommodation apparatus 108 connected to the second feeder 104 and the third feeder 106 are installed.
第１の電力融通装置１０７は、出力指令値に応じて前記第２のき電線１０４から前記第１のき電線１０２へ電力を供給することができる。第２の電力融通装置１０８は、与えられた出力指令値に応じて、前記第２のき電線１０４から前記第３のき電線１０６へ電力を供給することができる。 The first power interchange device 107 can supply power from the second feeder 104 to the first feeder 102 in accordance with the output command value. The second power interchange device 108 can supply power from the second feeder 104 to the third feeder 106 in accordance with the given output command value.
第１の電力融通装置１０７に対する第１の出力指令１０９と、第２の電力融通装置１０８に対する第２の出力指令１１０は制御装置１１１により出力され、制御装置１１１は、前記第１の変電所１０１から第１のき電線１０２へ供給される第１の電力１１２と、前記第２の変電所１０３から第２のき電線１０４へ供給される第２の電力１１３と、前記第３の変電所１０５から第３のき電線１０６へ供給される第３の電力１１４に基づいて、前記第１の出力指令１０９と前記第２の出力指令１１０を決定する。また、制御装置の構成の一例として、ＣＰＵ等のプロセッサ、プログラムデータや取得データ等を保存又は処理する為のメモリやハードディスク等の記憶媒体、有線又は無線で受送信可能な通信手段等を備えることが考えられる。 A first output command 109 for the first power accommodation device 107 and a second output command 110 for the second power accommodation device 108 are output by the control device 111, and the control device 111 transmits the first substation 101. The first power 112 supplied from the second substation 103 to the second feeder 104, the second power 113 supplied from the second substation 103 to the second feeder 104, and the third substation 105. The first output command 109 and the second output command 110 are determined based on the third power 114 supplied to the third feeder 106. Further, as an example of the configuration of the control device, a processor such as a CPU, a memory for storing or processing program data, acquired data, and the like, a storage medium such as a hard disk, and a communication means that can be transmitted and received by wire or wirelessly are provided. Can be considered.
図２は、本発明の各実施例に関わる制御装置１１１の処理フローを示す図である。当該制御装置１１１は、まず少なくとも３以上からなるき電区間における車両の回生電力と力行電力に係る情報の取得し、そこから各き電区間における回生電力と力行電力の合計値を算出し、回生電力と力行電力の大きさを比較する。その際、全てのき電区間で回生電力の方が大きい又は力行電力の方が大きい場合は電力融通量が０になるので処理を終了する。一方で、一つ又は二つのき電区間で回生電力の方が大きくなるが、それ以外の他のき電区間で力行電力の方が大きくなる場合、又は、一つ又は二つのき電区間で力行電力の方が大きくなるが、それ以外の他のき電区間で回生電力の方が大きくなる場合は、電力融通量を決定する。その後、決定した電力融通量から各き電区間の間に設置される電力融通装置に対しての制御指令を作成・送信する。 FIG. 2 is a diagram illustrating a processing flow of the control device 111 according to each embodiment of the present invention. The control device 111 first obtains information related to the regenerative power and powering power of the vehicle in at least three feeding sections, calculates the total value of the regenerative power and powering power in each feeding section from there, Compare the magnitude of power and power running power. At this time, if the regenerative power is larger or the power running power is larger in all feeding sections, the power interchange amount becomes 0 and the process is terminated. On the other hand, the regenerative power is larger in one or two feeding sections, but the power running power is larger in other feeding sections, or in one or two feeding sections. The power running power is larger, but if the regenerative power is larger in other feeding sections, the power accommodation amount is determined. Thereafter, a control command is generated and transmitted from the determined power accommodation amount to the power accommodation device installed between the feeding sections.
当該電力融通量は、力行電力より回生電力の方が大きいき電区間から回生電力より力行電力の方が大きいき電区間へ流す電力量を決定するものであり、電力融通量の詳細な決定手段を含む具体的な処理については以下で説明する。 The power accommodation amount is for determining the amount of power flowing from the feeding section where the regenerative power is larger than the power running power to the feeding section where the power running power is larger than the regenerative power. Specific processing including this will be described below.
図３は、本発明の実施例１に係わる制御装置１１１の処理を示す図である。制御装置１１１における第１の出力指令１０９と、第２の出力指令１１０の算出方法は条件により異なる。第１列に条件を識別する為のケース番号、第２列に第１のき電線１０２を走行する車両群により発生する第１の電力ＰＬ１の符号、第３列に第２のき電線１０４を走行する車両群により発生する第２の電力ＰＬ２の符号、第４列に第３のき電線１０６を走行する車両群により発生する第３の電力ＰＬ３の符号、第５列に詳細条件、第６列に第１の出力指令１０９として出力する第１の出力指令値ＰＣ１、第７列に第２の出力指令１１０として出力する第２の出力指令値ＰＣ２、を示している。 FIG. 3 is a diagram illustrating processing of the control device 111 according to the first embodiment of the present invention. The calculation method of the first output command 109 and the second output command 110 in the control device 111 differs depending on conditions. A case number for identifying a condition in the first row, a sign of the first power PL1 generated by a group of vehicles traveling on the first feeder 102 in the second row, and a second feeder 104 in the third row. The sign of the second power PL2 generated by the traveling vehicle group, the sign of the third power PL3 generated by the vehicle group traveling the third feeder 106 in the fourth column, the detailed condition in the fifth column, the sixth The first output command value PC1 output as the first output command 109 is shown in the column, and the second output command value PC2 output as the second output command 110 is shown in the seventh column.
なお、第１の出力指令値ＰＣ１は第２のき電線から第１のき電線へ融通する際の出力指令値を正とし、第２の出力指令値ＰＣ２は第２のき電線から第３のき電線へ供給する出力指令値を正とする。 Note that the first output command value PC1 is positive when the second feed command line is interchanged from the second feeder line to the first feeder line, and the second output command value PC2 is the third feed command value from the second feeder line. The output command value supplied to the feeder is positive.
制御装置１１１の出力は、第１の電力ＰＬ１と、第２の電力ＰＬ２と、第３の電力ＰＬ３の正負関係の組合せに応じて決定する。 The output of control device 111 is determined according to the combination of the positive and negative relationships of first power PL1, second power PL2, and third power PL3.
なお、第１の電力ＰＬ１、第２の電力ＰＬ２、第３の電力ＰＬ３は、各き電線へ流入する電力の収支を考慮すると、図１で述べた記号を用いてそれぞれ以下の数１により求めることができる。 The first electric power PL1, the second electric power PL2, and the third electric power PL3 are obtained by the following equation 1 using the symbols described in FIG. 1 in consideration of the balance of electric power flowing into each feeder. be able to.
〔数１〕
ＰＬ１＝ 第１の電力１１２＋第１の電力融通装置１０７の出力
ＰＬ２＝ 第２の電力１１３−第１の電力融通装置１０７の出力−第２の電力融通装置１０８の出力
ＰＬ３＝ 第３の電力１１４＋第２の電力融通装置１０８の出力
[Equation 1]
PL1 = first power 112 + output of first power interchanger 107 PL2 = second power 113−output of first power interchanger 107−output of second power interchanger 108 PL3 = third power 114+ Output of second power accommodation device 108
なお、第１の電力ＰＬ１、第２の電力ＰＬ２、第３の電力ＰＬ３の符号が負の場合、それぞれのき電線を走行する車両群による回生電力が力行電力を上回っており、回生電力に余剰が発生していることを意味する。逆に、符号が正の場合、それぞれのき電線を走行する車両群による力行電力が回生電力を上回っており、回生電力に余剰が発生していないことを意味する。 In addition, when the sign of 1st electric power PL1, 2nd electric power PL2, and 3rd electric power PL3 is negative, the regenerative electric power by the vehicle group which drive | works each feeder line exceeds power running electric power, and it is surplus in regenerative electric power Means that has occurred. On the contrary, when the sign is positive, it means that the power running power by the vehicle group traveling on each feeder line exceeds the regenerative power, and no surplus is generated in the regenerative power.
ケース１は、第１の電力ＰＬ１、第２の電力ＰＬ２、第３の電力ＰＬ３の符号が全て正の場合である。この場合、回生電力に余剰が発生しているき電線はない為、電力融通装置を動作させても回生電力を活用できないことから、第１の出力指令値ＰＣ１と第２の出力指令値ＰＣ２は共に０とする。 Case 1 is a case where the signs of the first power PL1, the second power PL2, and the third power PL3 are all positive. In this case, since there is no feeder line in which the regenerative power is surplus, since the regenerative power cannot be utilized even if the power interchange device is operated, the first output command value PC1 and the second output command value PC2 are Both are set to 0.
ケース２は、第１の電力ＰＬ１、第２の電力ＰＬ２、第３の電力ＰＬ３の符号が全て負の場合である。この場合、すべてのき電線で回生電力に余剰が発生している為、電力融通装置を動作させても回生電力を活用できないことから、第１の出力指令値ＰＣ１と第２の出力指令値ＰＣ２は共に０とする。 Case 2 is a case where the signs of the first power PL1, the second power PL2, and the third power PL3 are all negative. In this case, since there is a surplus in the regenerative power in all feeders, the regenerative power cannot be utilized even if the power accommodation device is operated. Therefore, the first output command value PC1 and the second output command value PC2 Are both 0.
ケース３は、第１の電力ＰＬ１の符号が正、第２の電力ＰＬ２の符号が正、第３の電力ＰＬ3の符号が負の場合である。この場合は、第２の出力指令値ＰＣ２は、第１の電力ＰＬ１と第２の電力ＰＬ２の和の絶対値と第３の電力ＰＬ３の絶対値の小さい値にマイナスを乗じた値とする。第１の出力指令値ＰＣ１は、第２の電力ＰＬ２と第２の出力指令値ＰＣ２の和にマイナスを乗じた値とする。但し、第１の出力指令値ＰＣ１の下限は０する。これにより、前記第１の電力融通装置１０７と前記第２の電力融通装置１０８の出力の絶対値の和が最小となるように、前記第３のき電線１０６を走行する回生車両からの回生電力を、前記第２のき電線１０４および前記第１のき電線１０２を走行する力行車両に対し配分することができる。 Case 3 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the second output command value PC2 is set to a value obtained by multiplying the absolute value of the sum of the first electric power PL1 and the second electric power PL2 and the small absolute value of the third electric power PL3 by minus. The first output command value PC1 is a value obtained by multiplying the sum of the second power PL2 and the second output command value PC2 by minus. However, the lower limit of the first output command value PC1 is zero. Thereby, the regenerative power from the regenerative vehicle traveling on the third feeder 106 so that the sum of the absolute values of the outputs of the first power accommodation device 107 and the second power accommodation device 108 is minimized. Can be distributed to the power running vehicle traveling on the second feeder 104 and the first feeder 102.
ケース４は、第１の電力ＰＬ１の符号が負、第２の電力ＰＬ２の符号が正、第３の電力ＰＬ３の符号が正の場合である。この場合は、第１の出力指令値ＰＣ１は、第２の電力ＰＬ２と第３の電力ＰＬ３の和の絶対値と第１の電力ＰＬ１の絶対値の小さい値にマイナスを乗じた値とする。第２の出力指令値ＰＣ２は、第２の電力ＰＬ２と第１の出力指令値ＰＣ１の和にマイナスを乗じた値とする。但し、第２の出力指令値ＰＣ２の下限は０とする。これにより、前記第１の電力融通装置１０７と前記第２の電力融通装置１０８の出力の絶対値の和が最小となるように、前記第１のき電線１０２を走行する回生車両からの回生電力を、前記第２のき電線１０４および第３のき電線１０６を走行する力行車両に対し配分することができる。 Case 4 is a case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is positive. In this case, the first output command value PC1 is set to a value obtained by multiplying the absolute value of the sum of the second power PL2 and the third power PL3 and the small absolute value of the first power PL1 by minus. The second output command value PC2 is a value obtained by multiplying the sum of the second power PL2 and the first output command value PC1 by minus. However, the lower limit of the second output command value PC2 is 0. Thereby, the regenerative power from the regenerative vehicle that travels on the first feeder 102 so that the sum of the absolute values of the outputs of the first power accommodation device 107 and the second power accommodation device 108 is minimized. Can be distributed to powering vehicles that travel on the second feeder 104 and the third feeder 106.
ケース５は、第１の電力ＰＬ１の符号が負、第２の電力ＰＬ２の符号が負、第３の電力ＰＬ３の符号が正の場合である。この場合は、第２の出力指令値ＰＬ２は、第１の電力ＰＬ１と第２の電力ＰＬ２の和の絶対値と第３の電力ＰＬ３の絶対値の小さい値とする。第１の出力指令値ＰＣ１は、第２の出力指令値ＰＣ２と第２の電力ＰＬ２の和とする。但し、第１の出力指令値ＰＣ１の下限は０とする。これにより、前記第３のき電線１０６を走行する力行車用が消費する電力のうち、前記第２のき電線１０４および前記第１のき電線１０２を走行する回生車両からの回生電力でまかなえる分のみを、前記第１の電力融通装置１０７と前記第２の電力融通装置１０８の出力の絶対値の和が最小となるように配分することが可能である。 Case 5 is a case where the sign of the first power PL1 is negative, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, the second output command value PL2 is set to a value having a small absolute value of the sum of the first power PL1 and the second power PL2 and the absolute value of the third power PL3. The first output command value PC1 is the sum of the second output command value PC2 and the second power PL2. However, the lower limit of the first output command value PC1 is 0. As a result, of the electric power consumed by the power running vehicle traveling on the third feeder 106, the amount that can be covered by the regenerative power from the regenerative vehicle traveling on the second feeder 104 and the first feeder 102. Can be distributed so that the sum of the absolute values of the outputs of the first power accommodation device 107 and the second power accommodation device 108 is minimized.
ケース６は、第１の電力ＰＬ１の符号が正、第２の電力ＰＬ２の符号が負、第３の電力ＰＬ３の符号が負の場合である。この場合は、第１の出力指令値ＰＣ１は、第２の電力ＰＬ２と第３の電力ＰＬ３の和の絶対値と第１の電力ＰＬ１の絶対値の小さい値とする。第２の出力指令値ＰＣ２は、出力指令値ＰＣ１と第２の電力ＰＬ２の差とする。但し、第２の出力指令値ＰＣ２の上限は０とする。これにより、前記第１のき電線１０２を走行する力行車両が消費する電力のうち、前記第２のき電線１０４および前記第３のき電線１０６を走行する回生車両からの回生電力で負担可能な分のみを前記第１の電力融通装置１０７と前記第２の電力融通装置１０８の出力の絶対値の和が最小となるように配分することが可能である。 Case 6 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is negative. In this case, the first output command value PC1 is a value having a small absolute value of the sum of the second power PL2 and the third power PL3 and the absolute value of the first power PL1. The second output command value PC2 is the difference between the output command value PC1 and the second power PL2. However, the upper limit of the second output command value PC2 is 0. Thereby, out of the electric power consumed by the power running vehicle traveling on the first feeder 102, the regenerative power from the regenerative vehicle traveling on the second feeder 104 and the third feeder 106 can be borne. It is possible to distribute only the amount so that the sum of the absolute values of the outputs of the first power accommodation device 107 and the second power accommodation device 108 is minimized.
ケース７は、第１の電力ＰＬ１の符号が正、第２の電力ＰＬ２の符号が負、第３の電力ＰＬ３の符号が正の場合である。この場合は、第１の電力ＰＬ１と第３の電力ＰＬ３の和に対する第２の電力ＰＬ２の大小関係を詳細条件に、第１の出力指令値ＰＣ1と第２の出力指令値ＰＣ２の算出方法を変更する。 Case 7 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, a calculation method of the first output command value PC1 and the second output command value PC2 is performed with a detailed condition of the magnitude relationship of the second power PL2 with respect to the sum of the first power PL1 and the third power PL3. change.
ケース７−１は、第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値以下の場合である。この場合、第１の出力指令値ＰＣ１は第１の電力ＰＬ１, 第２の出力指令値ＰＣ２は第３の電力ＰＬ３とする。 Case 7-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is equal to or less than the absolute value of the second power PL2. In this case, the first output command value PC1 is the first power PL1, and the second output command value PC2 is the third power PL3.
ケース７−２は、第１の電力ＰＬ1と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値よりも大きい場合である。この場合、第１の出力指令値ＰＣ１は第２の電力ＰＬ２の絶対値に、第１の電力ＰＬ１を第１の電力ＰＬ１と第３の電力ＰＬ３の和で割った値を乗じた値とする。また、第２の出力指令値ＰＣ２は第２の電力ＰＬ２の絶対値に対し、分子を第３の電力ＰＬ３、分母を第１の電力ＰＬ１と第３の電力ＰＬ３の和とする因子を乗じた値とする。 Case 7-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the second power PL2 by the value obtained by dividing the first power PL1 by the sum of the first power PL1 and the third power PL3. . The second output command value PC2 is obtained by multiplying the absolute value of the second power PL2 by a factor that makes the numerator the third power PL3 and the denominator the sum of the first power PL1 and the third power PL3. Value.
これにより、前記第２のき電線１０４を走行する回生車両からの回生電力を、前記第１のき電線１０２と前記第３のき電線１０６に過不足なく配分することができる。 Thereby, the regenerative electric power from the regenerative vehicle traveling on the second feeder 104 can be distributed to the first feeder 103 and the third feeder 106 without excess or deficiency.
ケース８は、第１の電力ＰＬ1の符号が負、第２の電力ＰＬ2の符号が正、第３の電力ＰＬ3の符号が負の場合である。この場合は、第１の電力ＰＬ１と第３の電力ＰＬ３の和に対する第２の電力ＰＬ２の大小関係を詳細条件に、第１の出力指令値ＰＣ１と第２の出力指令値ＰＣ２の算出方法を変更する。 Case 8 is a case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the calculation method of the first output command value PC1 and the second output command value PC2 is made with the detailed relationship of the magnitude of the second power PL2 with respect to the sum of the first power PL1 and the third power PL3. change.
ケース８−１は、第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値以下の場合である。この場合、第１の出力指令値ＰＣ１は第１の電力ＰＬ１の絶対値にマイナスを乗じた値に, 第２の出力指令値ＰＣ２は第３の電力ＰＬ３の絶対値にマイナスを乗じた値とする。 Case 8-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is less than or equal to the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the first power PL1 by minus, and the second output command value PC2 is a value obtained by multiplying the absolute value of the third power PL3 by minus. To do.
ケース８−２は、第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値よりも大きい場合である。この場合、第１の出力指令値ＰＣ１は第２の電力ＰＬ２の絶対値にマイナスをかけた値に対し、第１の電力ＰＬ１を第１の電力ＰＬ１と第３の電力ＰＬ３の和で割った値を乗じた値とする。また、第２の出力指令値ＰＣ２は第２の電力ＰＬ２の絶対値にマイナスをかけた値に対し、分子を第３の電力ＰＬ３、分母を第１の電力ＰＬ１と第３の電力ＰＬ３の和とする因子を乗じた値とする。 Case 8-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is obtained by dividing the first power PL1 by the sum of the first power PL1 and the third power PL3 with respect to a value obtained by multiplying the absolute value of the second power PL2 by minus. The value is multiplied by the value. The second output command value PC2 is the sum of the absolute value of the second power PL2 minus the absolute value of the second power PL2 and the third power PL3 as the numerator and the sum of the first power PL1 and the third power PL3 as the denominator. Is a value multiplied by a factor.
これにより、前記第２のき電線１０４を走行する力行車両が消費する電力のうち、前記第１のき電線１０２および前記第３のき電線１０６を走行する回生車両の回生電力を利用可能な分を電力融通装置１０７および１０８を介して供給可能となる。 As a result, of the power consumed by the powering vehicle traveling on the second feeder 104, the regenerative power of the regenerative vehicle traveling on the first feeder 102 and the third feeder 106 can be used. Can be supplied via the power interchange devices 107 and 108.
図４は、本発明の実施例２に係わるき電システムの制御装置１１１の処理を示す図である。第１の電力融通装置１０７の定格出力である第１の定格出力ＰＲ１と、第２の電力融通装置１０８の定格出力である第２の定格出力ＰＲ２を処理に用いることが実施例１の形態とは異なる。 FIG. 4 is a diagram illustrating processing of the control device 111 of the power feeding system according to the second embodiment of the present invention. The first embodiment is that the first rated output PR1 that is the rated output of the first power accommodation device 107 and the second rated output PR2 that is the rated output of the second power accommodation device 108 are used for the processing. Is different.
ケース１からケース６は実施例１の制御装置１１１の処理と同様の為、説明を省略する。 Since case 1 to case 6 are the same as the processing of the control device 111 of the first embodiment, the description thereof is omitted.
ケース７は、第１の電力ＰＬ１の符号が正、第２の電力ＰＬ２の符号が負、第３の電力ＰＬ３の符号が正の場合である。この場合は、第１の電力ＰＬ１と第３の電力ＰＬ３の和の絶対値に対する第２の電力ＰＬ２の大小関係を詳細条件に、第１の出力指令値ＰＣ１と第２の出力指令値ＰＣ２の算出方法を変更する。 Case 7 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, the detailed relationship between the second power PL2 and the absolute value of the sum of the first power PL1 and the third power PL3 is used as a detailed condition for the first output command value PC1 and the second output command value PC2. Change the calculation method.
ケース７−１は第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値以下の場合である。この場合、第１の出力指令値ＰＣ１は第１の電力ＰＬ１とし, 第２の出力指令値ＰＣ２は第３の電力ＰＬ３とする。 Case 7-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is less than or equal to the absolute value of the second power PL2. In this case, the first output command value PC1 is the first power PL1, and the second output command value PC2 is the third power PL3.
ケース７−２は第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値よりも大きい場合である。この場合、第１の出力指令値ＰＣ1は第２の電力ＰＬ２の絶対値に対し、分子を第１の定格出力ＰＲ１、分母を第１の定格出力ＰＲ1と第２の定格出力ＰＲ２の和とする因子を乗じた値とする。また、第２の出力指令値ＰＣ２は第２の電力ＰＬ２の絶対値に対し、分子を第２の定格出力ＰＲ２、分母を第１の定格出力ＰＲ１と第２の定格出力ＰＲ２の和とする因子を乗じた値とする。 Case 7-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is a sum of the first rated output PR1 and the denominator of the first rated output PR1 and the second rated output PR2 with respect to the absolute value of the second power PL2. The value multiplied by the factor. The second output command value PC2 is a factor with respect to the absolute value of the second power PL2, with the numerator being the second rated output PR2 and the denominator being the sum of the first rated output PR1 and the second rated output PR2. The value multiplied by.
これにより、前記第２のき電線１０４を走行する回生車両の回生電力を、前記第１のき電線１０２と前記第３のき電線１０６を走行する力行車両に過不足なく配分すると同時に、定格出力の大きい電力融通装置を優先して動作させることができる。 Thereby, the regenerative electric power of the regenerative vehicle traveling on the second feeder 104 is distributed to the powering vehicle traveling on the first feeder 102 and the third feeder 106 without excess and at the same time as the rated output. It is possible to preferentially operate a power interchange apparatus having a large capacity.
ケース８は、第１の電力ＰＬ１の符号が負、第２の電力ＰＬ２の符号が正、第３の電力ＰＬ３の符号が負の場合である。この場合は、第１の電力ＰＬ１と第３の電力ＰＬ３の和の絶対値に対する第２の電力ＰＬ２の絶対値の大小関係を詳細条件に、第１の出力指令値ＰＣ1と第２の出力指令値ＰＣ２の算出方法を変更する。 Case 8 is a case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the first output command value PC1 and the second output command are set based on the detailed condition of the absolute value of the second power PL2 with respect to the absolute value of the sum of the first power PL1 and the third power PL3. The calculation method of the value PC2 is changed.
ケース８−１は、第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値以下の場合である。この場合、第１の出力指令値ＰＣ１は第１の電力ＰＬ１の絶対値にマイナスを乗じた値, 第２の出力指令値ＰＣ２は第３の電力ＰＬ３の絶対値にマイナスを乗じた値とする。 Case 8-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is less than or equal to the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the first power PL1 by minus, and the second output command value PC2 is a value obtained by multiplying the absolute value of the third power PL3 by minus. .
ケース８−２は、第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値よりも大きい場合である。この場合、第１の出力指令値ＰＣ１は第２の電力ＰＬ２の絶対値にマイナスを乗じた値に対し、分子を前記定格出力ＰＲ１、分母を前記定格出力ＰＲ１と前記定格出力ＰＲ２の和とする因子を乗じた値とする。また、第２の出力指令値ＰＣ２は第２の電力ＰＬ２の絶対値にマイナスを乗じた値に対し、分子を前記定格出力ＰＲ２、分母を前記定格出力ＰＲ１と前記定格出力ＰＲ２の和とする因子を乗じた値とする。 Case 8-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is the sum of the rated output PR1 and the denominator of the rated output PR1, and the denominator of the absolute value of the second power PL2 multiplied by minus. The value multiplied by the factor. Further, the second output command value PC2 is a factor in which a numerator is the sum of the rated output PR1 and the rated output PR2 as a numerator with respect to a value obtained by multiplying the absolute value of the second power PL2 by minus. The value multiplied by.
これにより、前記第２のき電線１０４を走行する力行車両が消費する電力のうち、前記第１のき電線１０２と前記第３のき電線１０６を走行する回生車両からの回生電力で負担可能な電力分を過不足なく供給すると同時に、定格出力の大きい電力融通装置を優先して動作させることができる。 Thereby, out of the electric power consumed by the power running vehicle traveling on the second feeder 104, the regenerative power from the regenerative vehicle traveling on the first feeder 102 and the third feeder 106 can be borne. Power can be supplied without excess or deficiency, and at the same time, a power interchange device with a large rated output can be preferentially operated.
以上のように、実施例２の形態により、前記第２のき電線１０４で発生した回生電力を、前記第１のき電線１０２と前記第３のき電線１０６に過不足なく配分すると共に、前記電力融通装置１０７と前記電力融通装置１０８のうち定格出力の大きい電力融通装置を優先的に使用することができる。これにより、第１の電力融通装置１０７と第２の電力融通装置１０８の定格出力が異なる場合に、電力融通装置の温度上昇を平滑化することが可能となる。 As described above, according to the form of the second embodiment, the regenerative power generated in the second feeder 104 is distributed to the first feeder 102 and the third feeder 106 without excess and deficiency, and Of the power accommodation device 107 and the power accommodation device 108, a power accommodation device having a large rated output can be preferentially used. Thereby, when the rated output of the 1st power interchange apparatus 107 and the 2nd power interchange apparatus 108 differs, it becomes possible to smooth the temperature rise of a power interchange apparatus.
図５は、本発明の実施例３に係わるき電システムの構成を示す図である。 FIG. 5 is a diagram showing the configuration of a feeding system according to the third embodiment of the present invention.
実施例１における制御装置１１１の入力として、前記電力融通装置１０７の状態に関する第１の現状値４０１と前記電力融通装置１０８の状態に関する第２の現状値４０２を加えたことが実施例１の形態とは異なる。 As an input of the control device 111 in the first embodiment, the first current value 401 regarding the state of the power accommodation device 107 and the second current value 402 regarding the state of the power accommodation device 108 are added. Is different.
実施例３のおいては、第１の現状値４０１と第２の現状値４０２に対して、以下の数２により第１の負荷の余力Ｍ１と第２の負荷の余力Ｍ２を定義し処理を行う。 In the third embodiment, the first load remaining force M1 and the second load remaining force M2 are defined by the following equation 2 with respect to the first current value 401 and the second current value 402, and processing is performed. Do.
〔数２〕
Ｍ１ =（第１の状態に対する電力融通装置１０７の許容限界値−第１の現状値４０１）/第１の状態に対する電力融通装置１０７の許容限界値
Ｍ２ =（第２の状態に対する電力融通装置１０８の許容限界値−第２の現状値４０２）/第２の状態に対する電力融通装置１０８の許容限界値
[Equation 2]
M1 = (allowable limit value of power accommodation device 107 for first state−first current value 401) / allowable limit value of power accommodation device 107 for the first state M2 = (power accommodation device 108 for the second state) Permissible limit value-second current value 402) / allowable limit value of power interchange device 108 for the second state
なお、現状値と許容限界値は、図６に示すいずれかの組合せが考えられる。 Note that any combination of the current value and the allowable limit value shown in FIG. 6 can be considered.
図７は、本発明の実施例３に係わる制御装置１１１の処理を示す図である。
ケース１からケース６は実施例１の制御装置１１１の処理と同様の為、説明を省略する。
FIG. 7 is a diagram illustrating processing of the control device 111 according to the third embodiment of the present invention.
Since case 1 to case 6 are the same as the processing of the control device 111 of the first embodiment, the description thereof is omitted.
ケース７は、第１の電力ＰＬ１の符号が正、第２の電力ＰＬ２の符号が負、第３の電力ＰＬ３の符号が正の場合である。この場合は、第１の電力ＰＬ１と第３の電力ＰＬ３の和の絶対値に対する第２の電力ＰＬ２の大小関係を詳細条件に、第１の出力指令値ＰＣ１と第２の出力指令値ＰＣ２の算出方法を変更する。 Case 7 is a case where the sign of the first power PL1 is positive, the sign of the second power PL2 is negative, and the sign of the third power PL3 is positive. In this case, the detailed relationship between the second power PL2 and the absolute value of the sum of the first power PL1 and the third power PL3 is used as a detailed condition for the first output command value PC1 and the second output command value PC2. Change the calculation method.
ケース７−１は第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値以下の場合である。この場合、第１の出力指令値ＰＣ１は第１の電力ＰＬ１とし, 第２の出力指令値ＰＣ２は第３の電力ＰＬ３とする。 Case 7-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is less than or equal to the absolute value of the second power PL2. In this case, the first output command value PC1 is the first power PL1, and the second output command value PC2 is the third power PL3.
ケース７−２は第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値よりも大きい場合である。この場合、第１の出力指令値ＰＣ1は第２の電力ＰＬ２の絶対値に対し、分子を第１の負荷の余力Ｍ１、分母を第１の負荷の余力Ｍ１と第２の負荷の余力Ｍ２の和とする因子を乗じた値とする。また、第２の出力指令値ＰＣ２は第２の電力ＰＬ２の絶対値に対し、分子を第２の負荷の余力Ｍ２、分母を第１の負荷の余力Ｍ１と第２の負荷の余力Ｍ２の和とする因子を乗じた値とする。 Case 7-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is the absolute value of the second electric power PL2, the numerator is the remaining load M1 of the first load, the denominator is the remaining load M1 of the first load and the remaining load M2 of the second load. The value is multiplied by the factor to be summed. The second output command value PC2 is the sum of the remaining load M2 of the second load and the denominator M1 of the first load and the remaining load M2 of the second load with respect to the absolute value of the second power PL2. Is a value multiplied by a factor.
これにより、前記第２のき電線１０４を走行する回生車両の回生電力を、前記第１のき電線１０２と前記第３のき電線１０６を走行する力行車両に過不足なく配分すると同時に、負荷の余力の大きい電力融通装置を優先して動作させることができる。 As a result, the regenerative power of the regenerative vehicle traveling on the second feeder 104 is distributed to the powering vehicle traveling on the first feeder 102 and the third feeder 106 without excess and at the same time. It is possible to preferentially operate a power interchange apparatus having a large remaining capacity.
ケース８は、第１の電力ＰＬ１の符号が負、第２の電力ＰＬ２の符号が正、第３の電力ＰＬ３の符号が負の場合である。この場合は、第１の電力ＰＬ１と第３の電力ＰＬ３の和の絶対値に対する第２の電力ＰＬ２の絶対値の大小関係を詳細条件に、第１の出力指令値ＰＣ1と第２の出力指令値ＰＣ２の算出方法を変更する。 Case 8 is a case where the sign of the first power PL1 is negative, the sign of the second power PL2 is positive, and the sign of the third power PL3 is negative. In this case, the first output command value PC1 and the second output command are set based on the detailed condition of the absolute value of the second power PL2 with respect to the absolute value of the sum of the first power PL1 and the third power PL3. The calculation method of the value PC2 is changed.
ケース８−１は、第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値以下の場合である。この場合、第１の出力指令値ＰＣ１は第１の電力ＰＬ１の絶対値にマイナスを乗じた値, 第２の出力指令値ＰＣ２は第３の電力ＰＬ３の絶対値にマイナスを乗じた値とする。 Case 8-1 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is less than or equal to the absolute value of the second power PL2. In this case, the first output command value PC1 is a value obtained by multiplying the absolute value of the first power PL1 by minus, and the second output command value PC2 is a value obtained by multiplying the absolute value of the third power PL3 by minus. .
ケース８−２は、第１の電力ＰＬ１と第３の電力ＰＬ３の絶対値の和が第２の電力ＰＬ２の絶対値よりも大きい場合である。この場合、第１の出力指令値ＰＣ１は第２の電力ＰＬ２の絶対値にマイナスを乗じた値に対し、分子を第１の負荷の余力Ｍ１、分母を第１の負荷の余力Ｍ１と第２の負荷の余力Ｍ2の和とする因子を乗じた値とする。また、第２の出力指令値ＰＣ２は第２の電力ＰＬ２の絶対値にマイナスを乗じた値に対し、分子を第２の負荷の余力Ｍ２、分母を第１の負荷の余力Ｍ１と第２の負荷の余力Ｍ２の和とする因子を乗じた値とする。 Case 8-2 is a case where the sum of the absolute values of the first power PL1 and the third power PL3 is larger than the absolute value of the second power PL2. In this case, the first output command value PC1 is obtained by multiplying the absolute value of the second electric power PL2 by minus, the numerator is the first load remaining force M1, the denominator is the first load remaining force M1 and the second load. It is set to a value multiplied by a factor that is the sum of the remaining capacity M2 of the load. The second output command value PC2 is a value obtained by multiplying the absolute value of the second electric power PL2 by minus, the numerator is the remaining load M2 of the second load, the denominator is the remaining load M1 of the first load and the second load. A value obtained by multiplying by a factor which is the sum of the remaining load M2 is used.
これにより、前記第２のき電線１０４を走行する力行車両が消費する電力のうち、前記第１のき電線１０２と前記第３のき電線１０６を走行する回生車両からの回生電力で負担可能な電力分を過不足なく供給すると同時に、負荷の余力の大きい電力融通装置を優先して動作させることができる。 Thereby, out of the electric power consumed by the power running vehicle traveling on the second feeder 104, the regenerative power from the regenerative vehicle traveling on the first feeder 102 and the third feeder 106 can be borne. It is possible to preferentially operate a power interchange apparatus having a large load capacity at the same time as supplying power without excess or deficiency.
以上のように、実施例２の形態により、前記第２のき電線１０４で発生した回生電力を、前記第１のき電線１０２と前記第３のき電線１０６に過不足なく配分すると共に、前記電力融通装置１０９と前記電力融通装置１１０のうち負荷の余力が大きい電力融通装置を優先的に使用することができる。これにより、電力融通装置の負荷の限界に伴う動作停止を防止することが可能となり、電力融通装置の稼働率を高め、回生電力をより有効に活用することができる。 As described above, according to the form of the second embodiment, the regenerative power generated in the second feeder 104 is distributed to the first feeder 102 and the third feeder 106 without excess and deficiency, and Of the power accommodation device 109 and the power accommodation device 110, a power accommodation device with a large load capacity can be preferentially used. Thereby, it becomes possible to prevent the operation stop accompanying the limit of the load of the power accommodation device, increase the operating rate of the power accommodation device, and more effectively utilize the regenerative power.
１０１：第１の変電所
１０２：第１のき電線
１０３：第２の変電所
１０４：第２のき電線
１０５：第３の変電所
１０６：第３のき電線
１０７：第１の電力融通装置
１０８：第２の電力融通装置
１０９：第１の出力指令
１１０：第２の出力指令
１１１：制御装置
１１２：第１の変電所の消費電力
１１３：第２の変電所の消費電力
１１４：第３の変電所の消費電力
ＰＬ１：第１の電力
ＰＬ２：第２の電力
ＰＬ３：第３の電力
ＰＣ１：第１の出力指令値
ＰＣ２：第２の出力指令値
ＰＲ１：第１の定格出力
ＰＲ２：第２の定格出力
４０１：第１の現状値
４０２：第２の現状値
101: 1st substation 102: 1st feeder 103: 2nd substation 104: 2nd feeder 105: 3rd substation 106: 3rd feeder 107: 1st power interchange apparatus 108: second power interchange device 109: first output command 110: second output command 111: control device 112: power consumption of the first substation 113: power consumption of the second substation 114: third Power consumption PL1: first power PL2: second power PL3: third power PC1: first output command value PC2: second output command value PR1: first rated output PR2: first 2 rated output 401: first current value 402: second current value
Claims (10)
前記制御装置は、前記き電区間で走行する車両から得られる回生電力と前記き電区間で走行する車両が消費する力行電力に基づいて、所定のき電区間から他のき電区間に対して前記回生電力を融通する電力融通装置を制御することを特徴とする鉄道き電システム。 A control device for controlling interchange of power flowing in at least three feeding sections;
The control device is configured to change from a predetermined feeding section to another feeding section based on regenerative power obtained from a vehicle traveling in the feeding section and power running power consumed by the vehicle traveling in the feeding section. A railway power feeding system that controls a power accommodation device that accommodates the regenerative power.
所定のき電区間から他の複数のき電区間、又は所定の複数のき電区間から他のき電区間に対して前記回生電力を融通する制御を行うことを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
A railway power feeding system that performs control for accommodating the regenerative power from a predetermined feeding section to another feeding section, or from a predetermined plurality of feeding sections to another feeding section.
前記回生電力を融通する電力融通装置をさらに備え、
前記制御装置は前記電力融通装置に対して制御指令を行うことを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
It further comprises a power accommodation device that accommodates the regenerative power,
The railway power feeding system, wherein the control device issues a control command to the power accommodation device.
前記制御装置は前記力行電力より大きくない前記回生電力を全て消費するように前記電力融通装置に対して制御指令を行うことを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
The railway power feeding system, wherein the control device issues a control command to the power accommodation device so as to consume all of the regenerative power not larger than the power running power.
前記制御装置は前記力行電力より大きい前記回生電力を前記力行電力分消費するように前記電力融通装置に対して制御指令を行うことを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
The railroad power feeding system according to claim 1, wherein the control device issues a control command to the power accommodation device so that the regenerative power larger than the power running power is consumed by the power running power.
前記制御装置は、前記電力融通装置の定格出力、温度、出力の移動平均又は劣化度に基づいて、前記制御を行うことを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
The railway power system, wherein the control device performs the control based on a rated output, a temperature, a moving average of the output, or a degree of deterioration of the power accommodation device.
前記制御装置は、前記電力融通装置に生じている負荷から求めた余力値に基づいて、前記制御を行うことを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
The railway power system according to claim 1, wherein the control device performs the control based on a surplus value obtained from a load generated in the power accommodation device.
前記制御装置は、前記電力融通装置の定格出力又は前記電力融通装置に生じている負荷から求めた余力値が大きい電力融通装置に対して他の電力融通装置より前記回生電力を多く融通させるように制御指令を行うことを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
The control device allows a power accommodation device having a large surplus value obtained from a rated output of the power accommodation device or a load generated in the power accommodation device to accommodate more regenerative power than other power accommodation devices. Railway power transmission system characterized by issuing control commands.
前記き電区間に電力を供給する変電所は前記制御装置に対して、前記供給する電力から前記力行電力の情報を通信することを特徴とする鉄道き電システム。 The railway power feeding system according to claim 1,
A railway power feeding system, wherein a substation that supplies power to the power feeding section communicates information on the power running power from the supplied power to the control device.
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| JP2021508645A (en) * | 2018-03-30 | 2021-03-11 | 中▲車▼青▲島▼四方▲車▼▲輛▼研究所有限公司Ｃｒｒｃ Ｑｉｎｇｄａｏ Ｓｉｆａｎｇ Ｒｏｌｌｉｎｇ Ｓｔｏｃｋ Ｒｅｓｅａｒｃｈ Ｉｎｓｔｉｔｕｔｅ Ｃｏ．，Ｌｔｄ． | Methods and systems for configuring regenerative braking energy recovery equipment in urban rail transport |
| JP2022094710A (en) * | 2020-12-15 | 2022-06-27 | 株式会社日立製作所 | Alternating current feeding system |
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