JP6657327B2 - 直列変換調圧変圧器 - 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
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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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
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1878—Arrangements for adjusting, eliminating or compensating reactive power in networks using tap changing or phase shifting transformers
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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
- H02J3/10—Constant-current supply systems
-
- 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
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
-
- 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
- H02J3/36—Arrangements for transfer of electric power between ac networks via a high-tension dc link
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P13/00—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
- H02P13/06—Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output by tap-changing; by rearranging interconnections of windings
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
-
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/60—Arrangements for transfer of electric power between AC networks or generators via a high voltage DC link [HVCD]
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Description
簡単に言うと、交流調圧電子スイッチは半導体装置により直並列接続して構成される。原理からいうと直並列接続の手段はいろいろあるが、どの手段であっても、半導体装置により構成され、波形重畳原理に基づき、請求項2に定義された直列変換調圧変圧器の三次側巻線(または直列変換した一次側巻線)に直並列接続され、または、任意の種類の変圧器の一次または二次側巻線に作用し、かつ調圧機能を有し、または、交流スイッチ機能を有し、電圧波形が断続する問題、電圧調節の問題、高調波が大きすぎる問題、変圧器のリアクタンスの高速調節の問題、設備または素子の開路での置換(切除または増加の意味である)の問題を解決すれば、交流調圧電子スイッチである。
本実施例では、交流調圧電子スイッチを採用せず、新型交流調圧器を採用し、主に極端の情況での交流調圧器の調圧能力を表現することを目的とする。一台の電気炉と感応抵抗性負荷があり、電極と電気炉の料面距離を確定してから、直列変換調圧変圧器の最高の出力電圧は1に、最低出力電圧は0.7にする必要がある。
電気炉変圧器は一台で、調圧範囲が40%で、正逆調圧可能で、Yd11結線方法で、直列変換調圧変圧器である。主変換の二次巻線はコンデンサ組に並列接続し力率の調整を行い、補償前はcosφ=0.8で、補償後はcosφ=0.95である。電気の接線原理は、低圧巻線と無効電力補償装置の組み合わせ形式を示す図16を参照する。U21、U22はそれぞれ主変換、直列変換の二次電圧であり、変圧器の漏れリアクタンスは無視する。図17は、補償前の電流のベクトル図である。補償前に力率をcosφ=0.8、sinφ=0.6に設定するとともに、電気炉の作業電流をIL=1に設定する。この場合、作業電流の有効分はIR=0.8である。作業電流の無効分はIQ=0.6である。主変換と直列変換の二次巻線において流れる電流は電気炉の作業電流ILである。図18は、補償後の電流のベクトル図である。補償(電溶)電流が主変換の二次巻線でのみ流れるため、補償後の主変換の二次巻線における電流の大きさと電圧U21との間のベクトル角度に変化が発生する。
電気炉変圧器は一台で、調圧範囲が40%で、正逆調圧可能であり、Yd1結線方法で、直列変換調圧変圧器である。主変換の低圧電圧=0.8で、直列変換の低圧電圧は0〜0.2で、主変換と直列変換の合成電圧=0.8±(0〜0.2)で、21段調圧で、各段毎の電圧は0.02で、主変圧器の容量は0.4〜1で、主変圧器の、各段毎の容量誤差が0.03である。変換比率を1に設定し、で、低圧の主と直列両方の巻線の電気抵抗は同じである。補償後の電気炉での作業電流は相変わらずI L =1に設定し、主変換の二次巻線の電流はI21=0.842に変わり、無負荷損失が負荷損失の15%を占める。
Pk=(0.842I L)2×0.8×R+(I L)2×0.2×R=0.767(I L)2×R、
即ち、変圧器の負荷は省エネにより損耗の低減が23%前後になる。
(0.767IL)2R+0.15(IL)2R)/1.15(IL)2R=0.797(IL)2Rである。即ち、変圧器の総の省エネと損耗の低減は20%前後である。
2 交流調圧器
3 新型交流調圧器の一次コイル
4 新型交流調圧器の二次コイル
5 基本コイル
6 調圧コイル
7 交流調圧電子スイッチ
8 正逆切換の交流調圧電子スイッチ
9 粗調整の交流調圧電子スイッチ
10 微調整の交流調圧電子スイッチ
11 8の字型コイルの直列変換調圧変圧器の主変換二次コイルの構成
12 8の字型コイルの直列変換調圧変圧器の直列変換二次コイルの構成
13 直列変換調圧変圧器の調圧コイル
14 直列変換調圧変圧器の主変換一次コイル
15 直列変換調圧変圧器の主変換二次コイル
16 コイルの図示しない部分
17 直列変換調圧変圧器の直列変換一次コイル
18 直列変換調圧変圧器の直列変換二次コイル
19 電力網
20 負荷
21 電力網
22 無効電力補償位置の概略
23 三次側のスイッチング用の基本巻線
24 短路スイッチ
25 三次側の負荷遮断器
Claims (1)
- 第一の一次巻線と、調圧巻線と、一つまたは複数の第一の二次巻線とを含む主変圧器の部分と、
第二の一次巻線と、一つまたは複数の第二の二次巻線とを含む直列変圧器の部分とを含み、
前記第一の一次巻線または前記一つまたは複数の第一の二次巻線の各巻線と前記一つまたは複数の第二の二次巻線の各巻線がそれぞれ直列接続し、前記調圧巻線と前記第二の一次巻線が接続されており、
前記第一の一次巻線と一つまたは複数の前記第一の二次巻線が単巻式で連結されており、
直列変換調圧変圧器の出力電圧は、前記主変圧器の部分の第一の一次巻線または前記第一の二次巻線の電圧に、前記直列変圧器の部分の前記第一の一次巻線または前記第一の二次巻線と直列接続した第二の二次巻線の電圧を加算または減算した電圧であることを特徴とする直列変換調圧変圧器。
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CN201410034576.X | 2014-01-25 | ||
CN201410034576.XA CN103762599B (zh) | 2014-01-25 | 2014-01-25 | 基于交流调压电子开关的瞬变阻抗变压器 |
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US (1) | US10224718B2 (ja) |
EP (1) | EP3098925B1 (ja) |
JP (2) | JP6399462B2 (ja) |
CN (1) | CN103762599B (ja) |
RU (1) | RU2646843C1 (ja) |
WO (1) | WO2015109551A1 (ja) |
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EP3098925A4 (en) | 2017-10-11 |
RU2646843C1 (ru) | 2018-03-12 |
JP6399462B2 (ja) | 2018-10-03 |
JP2017505500A (ja) | 2017-02-16 |
CN103762599A (zh) | 2014-04-30 |
US10224718B2 (en) | 2019-03-05 |
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EP3098925B1 (en) | 2019-10-23 |
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