CN109510212B - In-phase power supply comprehensive compensation device and method based on single-phase transformation and T-connection compensation - Google Patents
In-phase power supply comprehensive compensation device and method based on single-phase transformation and T-connection compensation Download PDFInfo
- Publication number
- CN109510212B CN109510212B CN201811381548.XA CN201811381548A CN109510212B CN 109510212 B CN109510212 B CN 109510212B CN 201811381548 A CN201811381548 A CN 201811381548A CN 109510212 B CN109510212 B CN 109510212B
- Authority
- CN
- China
- Prior art keywords
- phase
- compensation
- reactive
- svg
- compensation unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 25
- 230000009466 transformation Effects 0.000 title claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 238000004804 winding Methods 0.000 claims description 17
- 230000001939 inductive effect Effects 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 claims description 3
- 238000011069 regeneration method Methods 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electrical Variables (AREA)
Abstract
The invention discloses an in-phase power supply comprehensive compensation device and method based on single-phase transformation and T wiring compensation, and relates to the technical field of alternating current electric railway power supply. The in-phase power supply comprehensive compensation device comprises a first reactive compensation unit, a second reactive compensation unit, a third reactive compensation unit, a fourth reactive compensation unit and a measurement and control unit; the first passive compensation unit is connected to the secondary side of the single-phase main transformer; one ends of the second reactive compensation unit, the third reactive compensation unit and the fourth reactive compensation unit are respectively connected with the three-phase compensation transformer, and the other ends of the second reactive compensation unit, the third reactive compensation unit and the fourth reactive compensation unit are respectively connected with the measurement and control unit. In addition, an in-phase power supply comprehensive compensation method based on single-phase transformation and T wiring compensation is also disclosed. Therefore, the invention not only can effectively cancel the electric split phase at the outlet of the traction substation to realize in-phase power supply, but also can effectively solve the technical problem of real-time compensation of reactive power and negative sequence generated by the traction substation.
Description
Technical Field
The invention relates to the field of AC electric railway power supply, in particular to a reactive power and negative sequence comprehensive compensation technology of an in-phase power supply traction substation based on a single-phase main transformer and a T-connection compensation transformer.
Background
The electrified railway generally adopts a single-phase power frequency alternating current system powered by a public power system, and adopts a scheme of alternating phase sequence, split phase and partitioned power supply in order to ensure that single-phase traction load is distributed in a three-phase power system as balanced as possible. Adjacent power supply areas at the split-phase areas are isolated by a split-phase insulator to form electric split-phase, which is called split-phase for short. The electric split phase link is the weakest link in the whole traction power supply system, and the train is split excessively to become the bottleneck of traction power supply of a high-speed railway and even the whole electrified railway.
Theory and practice show that the single-phase traction transformer or the combined type in-phase power supply technology adopted in the traction substation can cancel the electric split phase at the outlet of the traction substation, and the bilateral communication technology adopted in the subarea can cancel the electric split phase at the outlet of the traction substation, so that the power supply bottleneck is eliminated, and the railway power supply capacity and the railway transportation capacity are improved. But the core of the method realizes negative sequence compensation by changing the active power flow of the traction substation, so that the negative sequence reaches the standard.
The invention does not change the active power flow of the traction substation, solves the technical problem of comprehensive compensation of reactive power and negative sequence of the traction substation through reactive power flow control, realizes in-phase power supply, improves the power factor and the feeder voltage, and ensures that the negative sequence treatment meets the national standard requirement.
Disclosure of Invention
The invention aims to provide a reactive and negative sequence comprehensive compensation device and a reactive and negative sequence comprehensive compensation method for an in-phase power supply traction substation based on a single-phase main transformer and a T-connection compensation transformer, which can effectively solve the technical problem of reactive and negative sequence real-time compensation generated by the in-phase power supply traction substation.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the in-phase power supply traction substation mainly comprises a three-phase high-voltage bus, a single-phase main transformer connected with the three-phase high-voltage bus, a three-phase compensation transformer and a traction network connected with the single-phase main transformer; the three-phase compensation transformer adopts a T wiring mode, and the primary side of the three-phase compensation transformer is connected with A, B, C three phases of the three-phase high-voltage bus; wherein: the comprehensive compensation device comprises a first reactive compensation unit, a second reactive compensation unit, a third reactive compensation unit, a fourth reactive compensation unit and a measurement and control unit; the first passive compensation unit is connected to the secondary side of the single-phase main transformer; one ends of the second reactive compensation unit, the third reactive compensation unit and the fourth reactive compensation unit are respectively connected with the three-phase compensation transformer, and the other ends of the second reactive compensation unit, the third reactive compensation unit and the fourth reactive compensation unit are respectively connected with the measurement and control unit.
Preferably, the second reactive compensation unit is connected with the port of the secondary side rt of the three-phase compensation transformer, the third reactive compensation unit is connected with the port of the secondary side st of the three-phase compensation transformer, and the fourth reactive compensation unit is connected with the port of the secondary side rs of the three-phase compensation transformer.
Preferably, the comprehensive compensation device further comprises a measurement and control unit, wherein the measurement and control unit mainly comprises a voltage transformer, a current transformer and a controller; the input end of the controller is respectively connected with the measuring ends of the voltage transformer and the current transformer, and the output end of the controller is respectively connected with the control ends of the first reactive compensation unit, the second reactive compensation unit, the third reactive compensation unit and the fourth reactive compensation unit.
Preferably, the in-phase power supply traction substation further comprises a voltage transformer and a current transformer, wherein the primary side of the voltage transformer is connected with the secondary side of the single-phase main transformer in parallel, and the primary side of the current transformer is connected with the feeder in series.
Preferably, the primary winding of the single-phase main transformer is connected with the A phase and the B phase in the three-phase high-voltage bus, one end of the secondary winding of the single-phase main transformer is grounded, and the other end of the secondary winding of the single-phase main transformer is led to the traction network through a feeder line to be connected.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the comprehensive compensation method of the comprehensive compensation device of the in-phase power supply traction substation based on single-phase transformation and T wiring compensation according to any one of the technical schemes, wherein: the comprehensive compensation method of the in-phase power supply traction substation comprises the following specific steps:
(1) Let the negative sequence allowable capacity of the three-phase high-voltage bus be S ε ；
(2) The controller firstly calculates traction load (apparent) power s and power factor of the traction load as cos phi through using voltage and current respectively measured by a voltage transformer and a current transformer at time t, and then absorbs reactive power Q for a first passive compensation unit according to target traction load power factor or target feeder voltage 1 Control and compensate, and Q 1 The capacitance is positive; at this time, Q 1 Negative sequence power s generated by sum s - Is of the size of
(3) Judgment of Q 1 Negative of sSequence power s - And negative sequence allowable capacity S of three-phase high-voltage bus ε The magnitude relation between the two reactive power compensation units is compensated by controlling the second reactive power compensation unit, the third reactive power compensation unit and the fourth reactive power compensation unit to absorb reactive power through the controller, wherein the absorption reactive power of the second reactive power compensation unit, the third reactive power compensation unit and the fourth reactive power compensation unit is Q respectively 2 、Q 3 、Q 4 。
Preferably, when s - ≤S ε When the reactive power compensation unit is in the first state, the controller controls the second reactive power compensation unit, the third reactive power compensation unit and the fourth reactive power compensation unit to absorb reactive power for compensation, and Q 2 ＝Q 3 ＝0，Q 4 ＝-kQ 1 Reactive power Q 1 When capacitive, Q 4 Is inductive, wherein k is less than or equal to 1, and k is a real number.
Preferably, when s - ＞S ε The controller then controls the second reactive compensation unit, the third reactive compensation unit (SVG 3 ) Absorb reactive power to compensate, where Q 2 And Q 3 The component sizes of (2) are:
Q 4 maintaining unchanged; wherein is provided with->
Further preferably, when the feed line is in traction mode, then Q 2 Is inductive, Q 3 The component of (2) is capacitive.
Further preferably, when the feed line is in a regenerative condition, then Q 2 The components of (2) being capacitive, Q 3 The component of (2) is perceptual.
Compared with the prior art, the invention has the beneficial effects that:
1. the in-phase comprehensive compensation device and the method are used for comprehensively generating reactive components and negative sequence components, so that the power factor, the feeder voltage and the negative sequence are comprehensively compensated, in-phase power supply is realized, the active power flow of a traction network of a traction transformer is not changed, and the matched three-phase compensation transformer does not transmit positive sequence active power, so that the device and the method have the technical advantage of not paying capacity electric charge.
2. The working condition of the in-phase comprehensive compensation device and the method is reversible, and when the traction power supply system is in an equivalent regeneration working condition, the electric energy reaching the standard can still be sent to the power grid.
3. The single-phase main transformer and the three-phase compensation transformer can be installed in a common box, so that occupied land is reduced.
4. Simple structure, excellent performance, advanced technology, reliable method and easy implementation.
Drawings
Fig. 1 is a schematic structural diagram of an in-phase power supply integrated compensation device according to an embodiment of the invention.
FIG. 2 is a schematic diagram of a relationship structure between the measurement and control unit and the reactive compensation unit according to an embodiment of the present invention.
Fig. 3 is a flow chart of a method for in-phase power supply integrated compensation according to a second embodiment of the invention.
Detailed Description
For a better understanding of the invention, the working principle of the invention is briefly described here: the traction power factor and the feeder voltage are compensated by a first passive compensation unit connected to the secondary side of the single-phase main transformer, so that the traction power factor and the feeder voltage meet the target requirements; and the negative sequence current (power) generated by combining the traction load and the first reactive power compensation unit is compensated by the reactive power output of the second reactive power compensation unit and the reactive power output of the third reactive power compensation unit, and reaches national standard requirements after compensation, wherein the second reactive power compensation unit and the third reactive power compensation unit generate negative sequence power flow without changing original active power flow. The invention is further described below with reference to the drawings and detailed description.
Example 1
As shown in FIG. 1, the embodiment of the invention provides an in-phase power supply comprehensive based on single-phase transformation and T wiring compensationThe in-phase power supply traction substation SS mainly comprises a three-phase high-voltage bus HB, a single-phase main transformer TT connected with the three-phase high-voltage bus HB, a three-phase compensation transformer MT and a traction network OCS connected with the single-phase main transformer TT; the primary winding of the single-phase main transformer TT is connected with A phase and B phase in the three-phase high-voltage bus HB, one end of the secondary winding of the single-phase main transformer TT is grounded, and the other end of the secondary winding of the single-phase main transformer TT is led to the traction network OCS through a feeder F to be connected; the primary side of the voltage transformer PT is connected in parallel with the secondary side of the single-phase main transformer TT, and the primary side of the current transformer CT is connected in series with the feeder line F; the three-phase compensation transformer MT adopts a T wiring mode, and the primary side of the three-phase compensation transformer MT is connected with A, B, C three phases of a three-phase high-voltage bus HB; wherein: the in-phase power supply comprehensive compensation device comprises a first passive compensation unit SVG 1 Second reactive power compensation unit SVG 2 Third reactive power compensation unit SVG 3 Fourth reactive compensation unit SVG 4 And a measurement and control unit MC; the first passive compensation unit SVG 1 The secondary side is connected with the TT of the single-phase main transformer; the second reactive compensation unit SVG 2 Said third reactive compensation unit SVG 3 And the fourth reactive compensation unit SVG 4 One end of the three-phase compensation transformer MT is connected with the three-phase compensation transformer MT, and the other end of the three-phase compensation transformer MT is connected with the measurement and control unit MC.
In the embodiment of the present invention, the R terminal and the S terminal of the first primary winding RS of the three-phase compensation transformer MT and the T terminal of the second primary winding TX of the three-phase compensation transformer MT form an isosceles triangle, wherein the relationship between the number of turns n of the second primary winding TX and the number of turns m of the first primary winding RS is:the r terminal and s terminal of the first secondary winding rs of the three-phase compensation transformer MT and the t terminal of the second secondary winding tx of the three-phase compensation transformer MT form an isosceles triangle, wherein the relation between the number of turns n 'of the second secondary winding tx and the number of turns m' of the first secondary winding rs is: n '=m'/2.
In an embodiment of the present invention, the second reactive compensation unitSVG 2 The third reactive compensation unit SVG is connected with the MT secondary side rt port of the three-phase compensation transformer 3 The fourth reactive compensation unit SVG is connected with the MT secondary side st port of the three-phase compensation transformer 4 And the port of rs is connected with the secondary side of MT of the three-phase compensation transformer.
As shown in fig. 2, in the embodiment of the present invention, the measurement and control unit MC is mainly composed of a voltage transformer PT, a current transformer CT and a controller CD; the input end of the controller CD is respectively connected with the measuring ends of the voltage transformer PT and the current transformer CT, and the output end of the controller CD is respectively connected with the first active compensation unit SVG 1 Second reactive power compensation unit SVG 2 Third reactive power compensation unit SVG 2 SVG (reactive power compensation) unit 4 Is connected with the control end of the control circuit.
Example two
As shown in fig. 3, the embodiment of the invention provides an in-phase power supply integrated compensation method based on single-phase transformation and T-connection compensation, which specifically comprises the following steps:
(1) Let the negative sequence allowable capacity of the three-phase high-voltage bus HB be S ε ；
(2) The controller CD calculates the traction load (apparent) power s passing through the feeder F and the power factor thereof as cos phi by utilizing the voltage and the current respectively measured by the voltage transformer PT and the current transformer CT at the moment t, and then the controller CD calculates the first passive compensation unit SVG according to the target traction load power factor or the target feeder voltage 1 Absorbing reactive power Q 1 Control and compensate, and Q 1 The capacitance is positive; at this time, Q 1 Negative sequence power s generated by sum s - Is of the size of
(3) Judgment of Q 1 Negative sequence power s generated by sum s - And negative sequence allowable capacity S of three-phase high-voltage bus HB ε The magnitude relation between the two reactive compensation units is controlled by a controller CD to control a second reactive compensation unit SVG 2 Third reactive power compensation unit SVG 3 SVG (reactive power compensation) unit 4 Absorbing reactive power to enterLine compensation, wherein a second reactive compensation unit SVG 2 Third reactive power compensation unit SVG 3 SVG (reactive power compensation) unit 4 The absorption reactive power of (a) is Q respectively 2 、Q 3 、Q 4 。
In the embodiment of the invention, when s - ≤S ε When the controller CD controls the second reactive compensation unit SVG 2 Third reactive power compensation unit SVG 3 SVG (reactive power compensation) unit 4 Absorb reactive power to compensate, and Q 2 ＝Q 3 ＝0，Q 4 ＝-kQ 1 Reactive power Q 1 When capacitive, Q 4 Is inductive, wherein k is less than or equal to 1, and k is a real number.
In the embodiment of the invention, when s - ＞S ε When the controller CD controls the second reactive compensation unit SVG 2 Third reactive power compensation unit SVG 3 Absorb reactive power to compensate, wherein when the feeder F is in traction condition, then Q 2 Is inductive, Q 3 The component of (2) is capacitive; when the feeder line F is in the regeneration working condition, then Q 2 The components of (2) being capacitive, Q 3 The component of (2) is perceptual. Q (Q) 2 And Q 3 The component sizes of (2) are:Q 4 maintaining unchanged; wherein is provided with->
Claims (8)
1. The in-phase power supply comprehensive compensation device based on single-phase transformation and T wiring compensation is arranged in an in-phase power supply traction substation (SS), and the in-phase power supply traction substation (SS) mainly comprises a three-phase high-voltage bus (HB), a single-phase main transformer (TT) connected with the three-phase high-voltage bus (HB), a three-phase compensation transformer (MT) and a traction network (OCS) connected with the single-phase main transformer (TT); the three-phase compensation transformer (MT) adopts a T wiring mode, and the primary side of the three-phase compensation transformer is connected with A, B, C three phases of a three-phase high-voltage bus (HB); the method is characterized in that: the saidThe integrated compensation device comprises a first passive compensation unit (SVG) 1 ) Second reactive compensation unit (SVG) 2 ) Third reactive compensation unit (SVG) 3 ) Fourth reactive compensation unit (SVG) 4 ) And a measurement and control unit (MC); the first passive compensation unit (SVG 1 ) A secondary side connected to the single-phase main transformer (TT); the second reactive compensation unit (SVG 2 ) Said third reactive compensation unit (SVG 3 ) And said fourth reactive compensation unit (SVG 4 ) One end of the three-phase compensation transformer (MT) is respectively connected with the three-phase compensation transformer, and the other end of the three-phase compensation transformer is respectively connected with the measurement and control unit (MC);
the second reactive compensation unit (SVG 2 ) Is connected with the port of the secondary side rt of the three-phase compensation transformer (MT), and the third reactive compensation unit (SVG 3 ) Is connected with a secondary side st port of the three-phase compensation transformer (MT), and the fourth reactive compensation unit (SVG) 4 ) The device is connected with an rs port of a secondary side of a three-phase compensation transformer (MT);
the primary winding of the single-phase main transformer (TT) is connected with A phase and B phase in the three-phase high-voltage bus (HB), one end of the secondary winding of the single-phase main transformer (TT) is grounded, and the other end of the secondary winding of the single-phase main transformer (TT) is led to a traction network (OCS) through a feeder (F) to be connected.
2. The in-phase power supply integrated compensation device based on single-phase transformation and T wiring compensation according to claim 1, wherein: the measurement and control unit (MC) is mainly composed of a voltage transformer (PT), a Current Transformer (CT) and a Controller (CD); the input end of the Controller (CD) is respectively connected with the measuring ends of the voltage transformer (PT) and the Current Transformer (CT), and the output end of the Controller (CD) is respectively connected with the first passive compensation unit (SVG) 1 ) Second reactive compensation unit (SVG) 2 ) Third reactive compensation unit (SVG) 3 ) Fourth reactive compensation unit (SVG) 4 ) Is connected with the control end of the control circuit.
3. The in-phase power supply integrated compensation device based on single-phase transformation and T wiring compensation according to claim 2, wherein: the primary side of the voltage transformer (PT) is connected in parallel with the secondary side of the single-phase main transformer (TT), and the primary side of the Current Transformer (CT) is connected in series with the feeder line (F).
4. A comprehensive compensation method using the in-phase power supply comprehensive compensation device based on single-phase transformation and T-wire compensation according to any one of the above claims 1 to 3, characterized in that: the in-phase power supply comprehensive compensation method specifically comprises the following steps:
(1) Let the negative sequence allowable capacity of the three-phase high-voltage bus (HB) be S ε ；
(2) The Controller (CD) calculates the traction load power s passing through the feeder line (F) and the power factor thereof as cos phi by utilizing the voltage and the current respectively measured by the voltage transformer (PT) and the Current Transformer (CT) at the moment t, and then the controller outputs the traction load power s and the power factor thereof to the first passive compensation unit (SVG) according to the target traction load power factor or the target feeder line voltage 1 ) Absorbing reactive power Q 1 Control and compensate, and Q 1 The capacitance is positive; at this time, Q 1 Negative sequence power s generated by sum s - Is of the size of
(3) Judgment of Q 1 Negative sequence power s generated by sum s - And a negative-sequence allowable capacity S of a three-phase high-voltage bus (HB) ε The magnitude relation between the two is controlled by a Controller (CD) to control a second reactive compensation unit (SVG) 2 ) Third reactive compensation unit (SVG) 3 ) Fourth reactive compensation unit (SVG) 4 ) Absorb reactive power for compensation, wherein a second reactive compensation unit (SVG 2 ) Third reactive compensation unit (SVG) 3 ) Fourth reactive compensation unit (SVG) 4 ) The absorption reactive power of (a) is Q respectively 2 、Q 3 、Q 4 。
5. The method for in-phase power supply integrated compensation based on single-phase transformation and T-connection compensation according to claim 4, wherein the method comprises the following steps: when s is - ≤S ε When the Controller (CD) controls the second reactive compensation unit (SVG) 2 ) Third reactive compensation unit (SVG) 3 ) Fourth nothingWork compensation unit (SVG) 4 ) Absorb reactive power to compensate, and Q 2 ＝Q 3 ＝0，Q 4 ＝-kQ 1 Reactive power Q 1 When capacitive, Q 4 Is inductive, wherein k is less than or equal to 1, and k is a real number.
6. The method for in-phase power supply comprehensive compensation based on single-phase transformation and T wiring compensation according to claim 4 or 5, wherein the method comprises the following steps: when s is - ＞S ε When the Controller (CD) controls the second reactive compensation unit (SVG) 2 ) Third reactive compensation unit (SVG) 3 ) Absorb reactive power to compensate, where Q 2 And Q 3 The component sizes of (2) are:
Q 4 maintaining unchanged; wherein is provided with->
7. The method for in-phase power supply integrated compensation based on single-phase transformation and T-connection compensation according to claim 6, wherein the method comprises the following steps: when the feeder line (F) is in traction working condition, then Q 2 Is inductive, Q 3 The component of (2) is capacitive.
8. The method for in-phase power supply integrated compensation based on single-phase transformation and T-connection compensation according to claim 6, wherein the method comprises the following steps: when the feeder line (F) is in the regeneration working condition, then Q 2 The components of (2) being capacitive, Q 3 The component of (2) is perceptual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381548.XA CN109510212B (en) | 2018-11-20 | 2018-11-20 | In-phase power supply comprehensive compensation device and method based on single-phase transformation and T-connection compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811381548.XA CN109510212B (en) | 2018-11-20 | 2018-11-20 | In-phase power supply comprehensive compensation device and method based on single-phase transformation and T-connection compensation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109510212A CN109510212A (en) | 2019-03-22 |
| CN109510212B true CN109510212B (en) | 2024-01-16 |
Family
ID=65749110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811381548.XA Active CN109510212B (en) | 2018-11-20 | 2018-11-20 | In-phase power supply comprehensive compensation device and method based on single-phase transformation and T-connection compensation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109510212B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110611323B (en) * | 2019-09-30 | 2023-09-01 | 西南交通大学 | Electrified railway in-phase power supply comprehensive compensation device and comprehensive compensation method thereof |
| CN113489006A (en) * | 2021-07-30 | 2021-10-08 | 盾石磁能科技有限责任公司 | Energy management device in traction power supply system and traction power supply system |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280881A (en) * | 2011-08-05 | 2011-12-14 | 中国电力科学研究院 | Three-phase static var compensator (SVC) device for electrified railway traction side |
| CN102694386A (en) * | 2012-06-07 | 2012-09-26 | 武汉大学 | Electrified railway negative sequence unbalance compensation method |
| CN103036242A (en) * | 2012-12-30 | 2013-04-10 | 西南交通大学 | Comprehensive compensation system for Vv wiring traction substation with out-of-phase and in-phase compatibility |
| CN103078315A (en) * | 2012-12-28 | 2013-05-01 | 西南交通大学 | Single-phase and three-phase combined in-phase power supply and transformation device |
| CN104325894A (en) * | 2014-11-06 | 2015-02-04 | 西南交通大学 | Multi-feeder combination type power supply and transformation construction |
| CN107069780A (en) * | 2017-05-11 | 2017-08-18 | 成都瑞尔维轨道交通技术有限公司 | Distribution system and power system |
| CN107104450A (en) * | 2017-04-26 | 2017-08-29 | 国网江西省电力公司电力科学研究院 | A kind of three-phase to single-phase balance transformer control method |
| CN209344789U (en) * | 2018-11-20 | 2019-09-03 | 成都尚华电气有限公司 | Cophase supply comprehensive compensating device based on single-phase transformation and T wiring compensation |
-
2018
- 2018-11-20 CN CN201811381548.XA patent/CN109510212B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102280881A (en) * | 2011-08-05 | 2011-12-14 | 中国电力科学研究院 | Three-phase static var compensator (SVC) device for electrified railway traction side |
| CN102694386A (en) * | 2012-06-07 | 2012-09-26 | 武汉大学 | Electrified railway negative sequence unbalance compensation method |
| CN103078315A (en) * | 2012-12-28 | 2013-05-01 | 西南交通大学 | Single-phase and three-phase combined in-phase power supply and transformation device |
| CN103036242A (en) * | 2012-12-30 | 2013-04-10 | 西南交通大学 | Comprehensive compensation system for Vv wiring traction substation with out-of-phase and in-phase compatibility |
| CN104325894A (en) * | 2014-11-06 | 2015-02-04 | 西南交通大学 | Multi-feeder combination type power supply and transformation construction |
| CN107104450A (en) * | 2017-04-26 | 2017-08-29 | 国网江西省电力公司电力科学研究院 | A kind of three-phase to single-phase balance transformer control method |
| CN107069780A (en) * | 2017-05-11 | 2017-08-18 | 成都瑞尔维轨道交通技术有限公司 | Distribution system and power system |
| CN209344789U (en) * | 2018-11-20 | 2019-09-03 | 成都尚华电气有限公司 | Cophase supply comprehensive compensating device based on single-phase transformation and T wiring compensation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109510212A (en) | 2019-03-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109378828B (en) | Traction substation comprehensive compensation device and method based on in-phase traction transformer | |
| CN109510213B (en) | In-phase power supply comprehensive compensation device and method based on traction-compensation transformer | |
| CN109088415B (en) | Negative sequence compensation device and method for in-phase power supply substation | |
| CN108923429B (en) | In-phase power supply substation | |
| CN104325894B (en) | A kind of many feeder lines combination type is for power transformation structure | |
| CN110611323B (en) | Electrified railway in-phase power supply comprehensive compensation device and comprehensive compensation method thereof | |
| CN109066718B (en) | Negative sequence compensation device and method for electrified railway in-phase power supply and transformation system | |
| CN104682579B (en) | Twin coil and around radio energy transmission system output distribution method | |
| CN109510212B (en) | In-phase power supply comprehensive compensation device and method based on single-phase transformation and T-connection compensation | |
| CN104617583B (en) | Hybrid railway power quality control system based on multifunctional balance transformer | |
| CN109217330B (en) | In-phase power supply and transformation system of electrified railway | |
| CN210224973U (en) | Integrated compensation device for in-phase power supply of electrified railway | |
| CN109256785B (en) | In-phase power supply comprehensive compensation device and method based on single-phase transformation and YNd compensation | |
| CN209344791U (en) | A kind of traction substation comprehensive compensating device based on homo-phase traction transformer | |
| CN108923440B (en) | Negative sequence compensation measurement and control device, system and method for traction substation group | |
| CN109361212B (en) | In-phase power supply comprehensive compensation device and method based on single-phase transformation and Dd compensation | |
| CN204279138U (en) | A kind of many feeder lines compound type is for power transformation structure | |
| CN110588449B (en) | Traction substation power supply structure and control method thereof | |
| CN210350799U (en) | Integrated compensation device for in-phase power supply of electrified railway | |
| CN208939596U (en) | A kind of cophase supply comprehensive compensating device based on single-phase transformation and YNd compensation | |
| KR101369337B1 (en) | Active railway feeding system and method without insulation section for large power ac traction supply | |
| CN208939591U (en) | A kind of electric railway cophase supply power transformation construction | |
| CN208797586U (en) | A kind of negative sequence compensation device of electric railway cophase supply transformer substation system | |
| CN111682556B (en) | Structure of in-phase power supply traction substation and compensation method thereof | |
| CN111585290B (en) | In-phase power supply structure of traction-compensation transformer and compensation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |