1292974 統的運轉率降低之問題。 本發明係為解決μ 種即使複數台之交直變=，而完成其目的在提供一 維修而停止仍能使電力變生故障、或因定期 變換哭。 、°°構成糸統而繼續運轉之電力 【發明内容】 本發明之電力變換哭拉 統之串聯_ ;串耳:：丨'備:一次線圈串聯連接於系 ⑩多重變接於料聯變㈣的二次線圈之 罾，刀別串聯連接於上述多 圈的兩端之常閉型的開關器；與上述多重；，，：二人線 端之開關器構成的串聯體並聯==的欠 ==:接於上述多_ == 變換器單元之各個的直::且 由使特定之上述多重變塵器之二==電路，而藉 為閉路，使該特定之上述多重變㈣通器 上述交直變換器單元切之多重㈣器及其所連接之 依上述構成不但可提高裝置全體之運 性’而且由於增設之容易性亦可增大裝置=心 又，本發明之電力變換器係具一· 於系統之多重變遷器；分別串聯連接於上述多重⑼：?= σ _人線圈及其兩端之開關哭Μ 士从士 οσ構成的串聯體並聯連接之 316970 7 1292974 二们的直抓电路51丨_54丨互相獨立，與其他之交直變換器 單元之直*電路不相連接的構成。於多重變壓器4丨〇至44 〇 之各_人線圈411至441的兩端分別串聯配置（連接）常閉 •里的開K斷路器（breaker)、切斷器（disconnector)、 半導體開關器）31丨至341及312至342 ’且與各個多重 =壓态410至440之一次線圈411至441及其兩端之開關 =311至341及312至342構成的串聯體並聯而配置（連接） :開型的電流旁通器（斷路器、切斷器、或半導體開關 魯时）310至340。g此，形成為使特定之多重變壓器之一次· 線圈的電流旁通器為閉路，使該一次線圈兩端之開關器為 開路，則將該特定之多重變壓器自系統切離之構成。 又，於串聯變麼_ 200之一次線圈2〇1的兩端分別_ y配置（連接）開關器（斷路器、切斷器、或半導體開關 器）1〇1及102,且與串聯變壓器2〇〇之一次線圈2〇ι及兩 個，關n πη、1〇2構成之串聯體並聯而配置（連接）電流旁 癱通器（斷路器、切斷器、或半導體開關器）103。 -此外’配置使串聯變壓器200之二次線圈202短路之❿ 紐路器（斷路器、切斷器、或半導體開關器）300，形成於系 統事故時保護交直變換器單元510至540及多重微壓哭’、 410至440 *受短路電流破壞之構成。但有時因為有電^ 旁通器310至340故亦可將短路器3〇〇省略。該等元件可 ==置空間、冗餘性一之設二想等二 第1實施形態之串聯變壓器200之二次線圈2〇2之線 316970 9 1292974 •圈構成可採用三角(deita) 多重變壓器410至440之…欠吟圈=、.泉、或早相結線。 亦可按用-么 人線圈412至442之線圈構成 - h二角結線、Y字結線、或單相結線。 + A ^兒明上述電力變換器的動作。串聯連接於李统之 .電力變換哭少4士說丄 Τ柳逆按万、糸統之 、处亩妓从°〇政在於交直變換器單元51〇至540本身不 制流經該單元之電流，其所能控制者只有交直變 、:早凡510至54〇輸出之電壓大小及相位。電力變換器 斤以能間接地控制系統之電流，係 1_540之^電㈣向量和以多重變壓器；;二二 為媒串聯變壓器2〇〇之一次線圈2〇丨產生電壓，以其 插入电壓“…⑶衍⑽v〇ltage)在系統i與系統2之間產生 某相位某大小的電壓，而能以系統網路上之全部電壓源、 電流源，全部之系統阻抗的狀態來改變通過電力變換器之 電流之故。因此，該電力變換器具有系統之電力潮流控制 裝置的功能。又由於此，電力變換器之交直變換器單元51〇 至540採用構成電壓源之電壓型變換器（v〇ltage s〇urced converter)。由於上述動作原理，不需使各個交直變換器 單元產生相同的電壓，且即使一台之交直變換器單元停 止，電力變換器仍能無問題地運轉。 第1實施形態之電力變換器於平常時，電流旁通器1〇3 為OFF狀態，開關器101及1〇2為ON狀態，短路器300 為OFF狀態，並且電流旁通器310至340為OFF狀態，開 關器311至341及312至342為ON狀態。 今假設交直變換器單元510因故障而自系統切離。此 10 316970 1292974 時，因電流旁通器、310為閉路，開關器311及312為開路， 2且依第1實施形態’因直流電路511與其他交直變換器 皁:之直流電路521至541為電氣的切離，因此就電力變 器而言仍能繼續運轉。依習知之電力變換器將一部份之 父直變換器單元切離即不能運轉的理由係因為其交直變換 器單兀在交流側及直流側均非獨立構成之故。 交直變換器單元510至540之群係為了使針對全體而 指，之差電壓在串聯變壓器2〇〇之一次線圈2〇1產生者。 •本第1實施形態中，由於交直變換器單元51〇至54〇之群 為獨立的構成，因此其中一台或數台切離時，電力變換界 仍能運轉。 、口° 在要以交直變換器單元之數（Ν)來滿足電力變換器之 要求規格的情況，加設一台或數台（η)之冗餘而具備（Ν+η) σ之又直姣換裔單元的話，則交直變換器單元即使有η台 發生故障仍能不損及系統之最大規格地運轉。因此具備冗 春餘之交直變換器單元的話，則將冗餘份數之交直變換器單 元切離，電力變換器仍能以1〇〇%規格繼續運轉。藉此，可 、獲得可靠性高的裝置。 藉由形成為在系統事故等時流於交直變換器單元5丄〇 至540之最大電流比交直雙換器單元51〇至54〇之規格電 流大的情況增加多重變壓器與交直變換器單元之多重段數 的構成，可減低交直變換器單元51〇至54〇之最大電流。 此係依串聯連接於系統之電力變換器的性質而定。將插入 於串聯變壓器200之一次線圈之電壓Vs與系統之最大電流 316970 11 1292974 I s之積疋義為電力變換器的規格的話，則將電力變換器之 規格（Vsx Is)除以多重變壓器與交直變換器單元之一段份 的規格電壓Vc與規格電流Ic之積（Vex IC)即可求出段數 .^。如只設從平常時之系統規格電流求得之段數則，則於 系、’’先事故等恰，交直變換器單元之最大電流將超過規格電 流，因此«好以系統事故時之最大電流Is2來考慮交直變 換器單元之規格電流Ic2，而使交直變換器單元及多重變 壓器之平常時的規格為從最大規格減低（derating)而成 _者。此舉要使多重變壓器410至440之一次線圈411至441 之電壓降低來進行設計，結果多重段數N要增加。 另外’第1實施形態中，可湘上述串聯連接於系統 之電力變換器之特性而於電力變換器的設置後，以串聯方 式增設多重變壓器及交直變換器單元，來增加電力變換器 的容量。此係由於交直變換器單元之直流電路係獨立的構 成而變得可能之特徵。1292974 The problem of reduced operating rate. The present invention solves the problem that even if a plurality of units are crossed, the purpose is to provide a maintenance stop, which can cause power failure, or change due to periodic changes. , ° ° constitutes the system and continues to operate the power [invention] The power conversion of the invention of the series of crying system _; string ear:: 丨 'preparation: the primary coil is connected in series to the system 10 multiple connection in the material linkage (four) After the secondary coil, the knife is connected in series to the normally closed switch of the two ends of the plurality of turns; and the above-mentioned multiple;,: the series body of the switch of the two-wire line is connected in parallel == =: connected to the above-mentioned multiple _ == each of the converter unit: and by the specific two of the above-mentioned multiple dust collector == circuit, and by means of closed circuit, the specific above-mentioned multiple variable (four) passer The multiple (four) device of the AC-DC converter unit and the connected structure thereof can not only improve the overall mobility of the device, but also increase the device=heart, and the power converter device of the present invention · Multiple transitions in the system; respectively connected in series to the above multiple (9): ? = σ _ human coil and its two ends of the switch crying 从 从 从 σ σ 构成 316 316 316 316 316 316 316 316 316 316 316 316 316 316 316 316 316 316 316 51丨_54丨 is independent of each other and is straightforward with others The linear transducer unit * not in the circuit configuration connection. Each of the _human coils 411 to 441 of the multiple transformers 4 丨〇 to 44 串联 is respectively arranged (connected) in the normally closed • open K circuit breaker, disconnector, and semiconductor switch) 31丨 to 341 and 312 to 342' and are arranged (connected) in parallel with the series coils of the primary coils 411 to 441 of the respective multiple=pressure states 410 to 440 and the switches=311 to 341 and 312 to 342 at both ends thereof: Open type current bypass (circuit breaker, disconnector, or semiconductor switch) 310 to 340. g. This is formed so that the current bypass of the primary coil of the specific multiple transformer is closed, and the switch at both ends of the primary coil is opened, and the specific multiple transformer is separated from the system. Further, at both ends of the primary coil 2〇1 of the series _200, _y is arranged (connected) to a switch (circuit breaker, disconnector, or semiconductor switch) 1〇1 and 102, and to the series transformer 2 A current bypass device (circuit breaker, disconnector, or semiconductor switch) 103 is disposed (connected) in parallel with the coils 2〇 and 2, and the series bodies of n πη and 1〇2 are connected in parallel. - In addition, 'configuration of the secondary coil 202 of the series transformer 200 is short-circuited with a new circuit breaker (circuit breaker, disconnector, or semiconductor switch) 300, which is formed to protect the AC-DC converter units 510 to 540 and multiple micro in the event of a system accident. Pressing crying, 410 to 440 * is caused by the destruction of short-circuit current. However, the short circuiter 3〇〇 may be omitted sometimes because of the power of the bypass devices 310 to 340. These components can be used as == space, redundancy, and so on. The second coil of the series transformer 200 of the first embodiment is connected to the secondary coil 2〇2 line 316970 9 1292974 • The circle can be used as a deita multi-transformer. 410 to 440... under-circle =, spring, or early phase. Alternatively, the coils of the human coils 412 to 442 may be used to form a -h two-angle line, a Y-shaped line, or a single-phase line. + A ^ The operation of the above power converter. Connected in series to Li Tongzhi. Power conversion is crying less than 4 people said that the 丄Τ 逆 逆 逆 糸 糸 糸 糸 糸 糸 糸 糸 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 〇 在于 在于 在于 在于 在于 在于 在于 在于 在于 在于 在于 在于 在于 交 交 540 540 The controller can only control the straight-forward change: the voltage magnitude and phase of the output of 510 to 54 早. The power converter can indirectly control the current of the system, which is 1_540 ^ electric (four) vector and multi-transformer;; 22 is the medium series transformer 2 〇〇 primary coil 2 〇丨 generates voltage, with its insertion voltage "... (3) Derivative (10) v〇ltage) generates a phase of a certain voltage between system i and system 2, and can change the current through the power converter with all voltage sources, current sources, and all system impedance states on the system network. Therefore, the power converter has the function of the power flow control device of the system. Further, since the AC/DC converter units 51A to 540 of the power converter employ a voltage type converter that constitutes a voltage source (v〇ltage s〇 According to the above operation principle, it is not necessary to generate the same voltage for each of the AC/DC converter units, and even if one of the AC/DC converter units is stopped, the power converter can operate without problems. The power conversion of the first embodiment When the device is normal, the current bypass 1〇3 is in the OFF state, the switches 101 and 1〇2 are in the ON state, the short circuiter 300 is in the OFF state, and the current bypass device 310 is in the OFF state. 340 is in the OFF state, and the switches 311 to 341 and 312 to 342 are in the ON state. It is assumed that the AC/DC converter unit 510 is disconnected from the system due to a fault. This 10 316970 1292974 is closed due to the current bypass, 310, and the switch The inverters 311 and 312 are open circuits. 2. According to the first embodiment, the DC circuit 511 and the DC circuits 521 to 541 of the other AC converters are electrically disconnected, so that the power converter can continue to operate. The reason why the power converter according to the prior art cuts off a part of the parent-spin converter unit and cannot operate is because the AC-DC converter unit is not independently formed on the AC side and the DC side. The AC-DC converter unit 510 is The group of 540 is generated for the whole, and the difference voltage is generated in the primary coil 2〇1 of the series transformer 2〇〇. In the first embodiment, the group of the AC converter units 51〇 to 54〇 is Independent configuration, so when one or several of them are disconnected, the power conversion boundary can still operate. The port is required to meet the requirements of the power converter by the number of AC converter units (Ν). One or several If the (η) is redundant and the (Ν+η) σ is directly connected to the unit, the AC/DC converter unit can operate without losing the maximum specification of the system even if there are n failures. In the case of the AC-DC converter unit, the redundant-numbered AC/DC converter unit is cut off, and the power converter can continue to operate at 1%%. This makes it possible to obtain a highly reliable device. The case where the maximum current flowing to the AC converter units 5A to 540 at a system accident or the like is larger than the specification current of the AC/DC converter units 51A to 54A increases the number of multiples of the multi-transformer and the AC/DC converter unit. The configuration can reduce the maximum current of the AC-DC converter units 51〇 to 54〇. This is based on the nature of the power converter connected in series to the system. When the product of the voltage Vs of the primary coil inserted in the series transformer 200 and the maximum current of the system 316970 11 1292974 I s is the specification of the power converter, the specification of the power converter (Vsx Is) is divided by the multi-transformer and The number of segments can be obtained by the product of the specification voltage Vc and the specification current Ic (Vex IC) of one of the sections of the AC/DC converter unit. If only the number of segments obtained from the system current of the normal time is set, then the maximum current of the AC-DC converter unit will exceed the specification current, so the current is the maximum current in the event of a system accident. Is2 considers the specification current Ic2 of the AC-DC converter unit, and makes the normal-time specifications of the AC-DC converter unit and the multi-transformer to be derived from the maximum specification. This is to design the voltages of the primary coils 411 to 441 of the multiple transformers 410 to 440 to be lowered, and as a result, the number of stages N is increased. Further, in the first embodiment, after the power converter is connected in series to the characteristics of the power converter connected in series, the multi-transformer and the AC/DC converter unit are added in series to increase the capacity of the power converter. This is made possible by the independent construction of the DC circuit of the AC-DC converter unit.
Φ 又，在第1實施形態中，在通常時候使串聯變壓器200 之二次線圈的電壓降壓的情況，於系統事故等時二次線圈 、202的最大電流會變大。因此第j實施形態可採用：於二 次線圈202之最大電流超過半導體開關器（短路哭）3〇〇及 斷路器（電流旁通器）310至340及切斷器（開_器）311至 341、312至342之規格電流的情況，使串聯變壓器2〇〇之 開關300及切斷 二次線圈的電壓反向昇壓以最佳化半導體Φ In the first embodiment, when the voltage of the secondary coil of the series transformer 200 is stepped down, the maximum current of the secondary coils 202 and 202 is increased in the event of a system accident or the like. Therefore, the jth embodiment can adopt that the maximum current in the secondary coil 202 exceeds the semiconductor switch (short circuit crying) 3〇〇 and the circuit breaker (current bypass) 310 to 340 and the disconnector (opener) 311 to In the case of the specification current of 341, 312 to 342, the voltage of the series transformer 2〇〇 switch 300 and the secondary winding is reverse-boosted to optimize the semiconductor.
、312至342之規格的方 310至340及斷路器311至341 法 316970 12 1292974 第2實施形態 第1實施形態係形成將交直變換器單元51〇至54〇依 y台為單位i刀離的構成、然第2圖所示係將交直變換器單 几550至580以每二台與多重變麼器彻及46〇之二次線 圈452及462連接。此時，成對之二台的直流電路551與 552為共ϋ ’但與別對之直流電路561及撕相互獨立。 此點與第1實施形態相同。 如交直變換器單元之台數為2x 台時，與第1實施形 ►悲相比由於多重變Μ器之段數只要半數之N台即可，因此 可期待多重變壓器之製造成本的降低。然而，依第2實施 形態時’因交直變換器單元之故障或定期維修時，合使二 台份停止’但只要不影響冗餘所期待的運轉率，即；提供 热：題的系統。又，依第2實施形態，由於同時控制二台 之父直變換器單元’因此可將控制單元(未圖示）中之直泞 :壓控制t彳分的電路共用而省略其中之一，來減低 本0 谨上：：顯示一般之單相交直變換器(單相變換器)的 如圖所示’於交流側端子9〇1連接自消弧 t 兀件 911、912 及飛輪二極體（flywheeidi〇de)92i922, 側=子9G2連接自消弧型元件9i3、9i4及飛 =::Γ二直流側端子連接電容器93°。第2實施形 悲亦可適用於父直變換器單元構成如第3圖所示之單相产 路⑽㈣的情況。在電車用單相交流架線的系統因不： 316970 13 1292974 第5實施形態 第1 λ鈀形恕係針對每台多重變壓器各設一套用以將 多重變壓器410至440之-次線圈411至441從系統切離 之開關器311至341及312至342、以及電流旁通器31〇 至3 4 0的構成，麸如筮β闽仏— ^ …、弟6圖所不之第5實施形態中，多重 又>£為801係由串聯連接之複數個變壓器81〇及8別所構 成同樣^重麦壓為8〇2係由串聯連接之複數個變壓哭 830及840所構成。> μ ρ °° 再攻於複數之變壓器810及820之一次線 圈811及821構成之串聯體的兩端串聯常閉型的開關哭、 311及奶。同樣，於複數之變屢器咖及840之一次缘圈 831及841構成之串庐邮从山士 人、深围 ……串端串聯常閉型的開關器331 及342。與複數之變壓哭"ο乃S9n «二 月q99拔泠^ °。810及820及兩端的開關器311 31。上並聯而連接一台常開型的電流旁通器 同樣，與複數之變壓器83 331 ^ L⑽及840及兩端的開關器 331及342構成之串聯體並聯而 I通器330。此外，於久傲β1Λ 。予開型的電流旁 822、832、八 "810至840之各二次線圈_、 刀別連接交直變換器單元5 6圖之構成可減低成本。 '至540。依弟 冗餘雖然在進行多刚器及交直變換器單元之 用之構成\，但為電力變換器之冗餘性不成問題時可採 從第1實施形態變更至第5實施形態之構成的變更方 3】6970 16 1292974 法亦可適用於第2實施形態、第3實施形態、或第4實施 形態。 第6實施形態 第1貫施形態係藉由在每一交直變換器單元之直流電 路不但連接電容器，而且連接其他之能量蓄存裝置，而使 電力變換器輸出之插入電壓其有效成份之電壓與無效成份 之電壓能以360度之任一相位輸出。 W 能量蓄存裝置之例有：以電池為始之二次電池、大容 里電容器等之能量蓄存裝置、以馬達兼發電機為媒介而連 接飛輪之類的機械能量源之別的交直變換器單元等。 第7圖所示之第6實施形態為習知之DVR(DynamicSections 310 to 340 of 312 to 342 and circuit breakers 311 to 341 316970 12 1292974 The second embodiment is a first embodiment in which the AC/DC converter units 51A to 54 are separated by y units. In the second diagram, the cross-converter converters are connected to the secondary coils 452 and 462 of the multiplexer and the multiplexer. At this time, the paired DC circuits 551 and 552 are in common, but are independent of the other DC circuits 561 and tear. This point is the same as that of the first embodiment. For example, when the number of the AC-DC converter units is 2x, the number of segments of the multi-deformer is only half of that of the first embodiment, so that the manufacturing cost of the multi-transformer can be expected to be lowered. However, according to the second embodiment, when the failure of the AC/DC converter unit or the regular maintenance, the two units are stopped, but the operation rate expected to be redundant is not affected, that is, the system for providing heat: Further, according to the second embodiment, since the two parent straight converter units are simultaneously controlled, the circuit of the control unit (not shown) can be shared by the circuit of the voltage control t, and one of them is omitted. Reduce this 0: On: Show the general single-phase AC-DC converter (single-phase converter) as shown in the figure 'Connecting the AC side terminal 9〇1 to the self-extinguishing t-pieces 911, 912 and the flywheel diode ( Flywheeidi〇de) 92i922, side = sub 9G2 connected to the arc suppression type components 9i3, 9i4 and fly =:: Γ 2 DC side terminal connection capacitor 93 °. The second embodiment can also be applied to the case where the parent straight converter unit constitutes the single-phase production path (10) (4) as shown in Fig. 3. The system for single-phase AC wiring in the electric train is not: 316970 13 1292974 The fifth embodiment of the first λ palladium shape is provided for each of the multiple transformers to set the secondary transformers 410 to 440 to the secondary coils 411 to 441 The configuration of the switches 311 to 341 and 312 to 342 which are separated from the system, and the current bypassers 31A to 340, the fifth embodiment of the present invention is not limited to the bran, such as 筮β闽仏-^, Multiple and > £ is 801 series consisting of a plurality of transformers 81 〇 and 8 connected in series. The same weight is 8 〇 2 is composed of a plurality of transformers 830 and 840 connected in series. > μ ρ °° The two ends of the series of coils 811 and 821 of the transformers 810 and 820 of the plurality of transformers 810 and 820 are connected in series with a normally closed switch, crying, 311 and milk. Similarly, in the plural number of repeater coffee and the 840's first edge circle 831 and 841 constitute a series of mail from the mountain people, deep circumference ... series end series normally closed type switches 331 and 342. With the plural of the pressure crying "quote is S9n «February q99 pull 泠 ^ °. 810 and 820 and switch 311 31 at both ends. A normally open current bypass is connected in parallel with the parallel connection, and is connected in parallel with a series of transformers 83 331 ^ L (10) and 840 and switches 331 and 342 at both ends. In addition, Yu Jiu is a beta 1Λ. The pre-existing currents 822, 832, eight " 810 to 840 each secondary coil _, the knives are connected to the cross-converter unit 56 to reduce the cost. 'to 540. In the case where the redundancy of the power converter and the AC/DC converter unit are used, the redundancy of the power converter can be changed from the first embodiment to the fifth embodiment. The method of 3, 6970, 16 1292974 can also be applied to the second embodiment, the third embodiment, or the fourth embodiment. According to a sixth aspect of the present invention, in a DC circuit of each of the AC/DC converter units, not only a capacitor but also another energy storage device is connected, and the voltage of the active component of the insertion voltage of the power converter is outputted. The voltage of the invalid component can be output in any phase of 360 degrees. Examples of the W energy storage device include an energy storage device such as a battery as a secondary battery, a large capacity capacitor, and a mechanical energy source such as a motor and a generator connected to a flywheel. Unit, etc. The sixth embodiment shown in Fig. 7 is a conventional DVR (Dynamic)
Voltage Restorer)，UPFC(Unified Power Flow Control ler 的構成。如圖所示，經由交直變換器單元51〇至54〇之直 流電路511至541而獨立與別的交直變換器5丨3至543連 籲接’再從交直變換器513至543經由變壓器610至640、 -斷路器611至641、變壓器700、斷路器701而分別連接至 系統，可獲得獨立的能量源。 [產業上之利用可能性] 如上所述，本發明之電力變換器應用於部份發生故障 仍可繼續運轉之系統的電力潮流控制裝置甚，為合適。 【圖式簡單說明】 316970 17 1292974 第1圖係顯示本發明第1實施形態之電力變換器的構 成之電路圖。 第2圖係顯示第2實施形態之電力變換器的構成之電 第3圖係顯示一般之單相交直變換器的構成之電路 圖。 第4圖係顯示第3實施形態之電力變換器的構成之電 路圖。 第5圖係顯示第4實施形態之電力變換器的構成之電 路圖。 第6圖係顯示第5實施形態之電力變換器的構成之電 路圖。 第7圖係顯示第6實施形態之電力變換器的構成之電 路圖。 第8圖係顯示習知之電力變換器的構成之電路圖。 【主要元件符號說明】 電源側Voltage Restorer), UPFC (Composition of Unified Power Flow Control ler. As shown in the figure, the DC circuits 511 to 541 through the AC-DC converter units 51 to 54 are independently connected to other AC-DC converters 5丨3 to 543. Then, from the AC-DC converters 513 to 543, the transformers 610 to 640, the circuit breakers 611 to 641, the transformer 700, and the circuit breaker 701 are respectively connected to the system, and an independent energy source can be obtained. [Industrial Utilization] As described above, the power converter of the present invention is suitable for use in a power flow control device of a system in which a failure can continue to operate. [Simplified Schematic] 316970 17 1292974 Fig. 1 shows the first aspect of the present invention Fig. 2 is a circuit diagram showing a configuration of a power converter of a second embodiment. Fig. 4 is a circuit diagram showing a configuration of a general single-phase AC/DC converter. Fig. 5 is a circuit diagram showing a configuration of a power converter according to a fourth embodiment. Fig. 6 is a circuit diagram showing a fifth embodiment. Fig. 7 is a circuit diagram showing a configuration of a power converter according to a sixth embodiment. Fig. 8 is a circuit diagram showing a configuration of a conventional power converter. [Description of main components] Power supply side
2 負荷侧 !壓器 201 一次線圈 二次線圈 、440 、 450 、 多重變壓器 、4仏、45卜 461、81 卜 82卜 一次線圈 18 316970 1292974 412 、 422 、 432 、 442 、 812 、 822 、 832 、 842 二次線圈 510 、 520 、 530 、 540 、 550 、 560 、 570 、580 交直變換器單元 513、523、533、543 交直變換器 511、521、531、541 直流電路2 Load side! Pressurer 201 primary coil secondary coil, 440, 450, multiple transformer, 4 仏, 45 461, 81 卜 82 卜 primary coil 18 316970 1292974 412, 422, 432, 442, 812, 822, 832, 842 secondary coils 510, 520, 530, 540, 550, 560, 570, 580 AC converter units 513, 523, 533, 543 AC converters 511, 521, 531, 541 DC circuits
1(Π、102、31 卜 32卜 331 、341、312、322、332、342 開關器 _ 103、310、320、330、340 電流旁通器（斷路器） 300 短路器（半導體開關器） 551、552、561、562 直流電路 610、620、630、640, 700、810、820、 830、840變壓器 61卜 621、631、641、701 斷路器 901 交流側端子1 (Π, 102, 31 32 32 331 , 341 , 312 , 322 , 332 , 342 Switch _ 103 , 310 , 320 , 330 , 340 Current bypass (circuit breaker ) 300 Short circuit (semiconductor switch) 551 , 552, 561, 562 DC circuits 610, 620, 630, 640, 700, 810, 820, 830, 840 transformer 61 621, 631, 641, 701 circuit breaker 901 AC side terminal
911、912、913、914自消弧型元件 ® 921、922、923、924 飛輪二極體 ‘ 902 交流側端子 930 電容器 19 316970911, 912, 913, 914 self-extinguishing components ® 921, 922, 923, 924 flywheel diodes ‘ 902 AC side terminal 930 capacitor 19 316970