WO2010102667A1 - Convertisseur de source de tension modulaire et unité de source d'énergie - Google Patents

Convertisseur de source de tension modulaire et unité de source d'énergie Download PDF

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Publication number
WO2010102667A1
WO2010102667A1 PCT/EP2009/052887 EP2009052887W WO2010102667A1 WO 2010102667 A1 WO2010102667 A1 WO 2010102667A1 EP 2009052887 W EP2009052887 W EP 2009052887W WO 2010102667 A1 WO2010102667 A1 WO 2010102667A1
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WO
WIPO (PCT)
Prior art keywords
energy source
converter
converter cell
cell modules
voltage source
Prior art date
Application number
PCT/EP2009/052887
Other languages
English (en)
Inventor
Falah Hosini
Jan R: Svensson
Jean-Philippe Hasler
Original Assignee
Abb Technology Ag
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Abb Technology Ag filed Critical Abb Technology Ag
Priority to PCT/EP2009/052887 priority Critical patent/WO2010102667A1/fr
Publication of WO2010102667A1 publication Critical patent/WO2010102667A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
    • H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
    • H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/4835—Converters with outputs that each can have more than two voltages levels comprising two or more cells, each including a switchable capacitor, the capacitors having a nominal charge voltage which corresponds to a given fraction of the input voltage, and the capacitors being selectively connected in series to determine the instantaneous output voltage
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/483—Converters with outputs that each can have more than two voltages levels
    • H02M7/49—Combination of the output voltage waveforms of a plurality of converters
    • 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
    • H02J3/1835—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control
    • H02J3/1842—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters
    • H02J3/1857—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators with stepless control wherein at least one reactive element is actively controlled by a bridge converter, e.g. active filters wherein such bridge converter is a multilevel converter
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • 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
    • Y02E40/20—Active power filtering [APF]

Definitions

  • a modular voltage source converter and an energy source unit A modular voltage source converter and an energy source unit
  • the invention generally relates to the field of power compensation in a high- voltage power network, and in particular to a modular voltage source converter and to an energy source unit for a voltage source converter according to the preambles of the independent claims.
  • a STATCOM comprises a voltage source converter (VSC) having an AC side connected to the AC network (transmission line) via an inductor in each phase.
  • VSC voltage source converter
  • the DC side is connected to a temporary electric power storage means such as capacitors.
  • the VSC comprises at least six self- commutated semiconductor switches, each of which is shunted by a reverse or anti- parallel connected diode.
  • a STATCOM apparatus with no active power source can only compensate for reactive power, balancing load currents and remove current harmonics in point of common connection by injecting current harmonics with opposite phase.
  • An electric arc furnace is a heavy consumer not only of active power, but also of reactive power.
  • the voltage drop caused by reactive power flowing through circuit reactances in the electrodes, electrode arms and furnace transformer becomes fluctuating in an erratic way. This is called voltage flicker and is visualized most clearly in the flickering light of incandescent lamps fed from the polluted grid.
  • the problem with voltage flicker is attacked by making the erratic flow of reactive power through the supply grid down into the furnaces decrease. This is done by measuring the reactive power consumption and generating corresponding amounts in the compact STATCOM and injecting it into the system, thereby decreasing the net reactive power flow to an absolute minimum. As an immediate consequence, voltage flicker is decreased to a minimum, as well.
  • VSC voltage-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-to-ground-producing amplitude which can be continuously and rapidly controlled, so as to be used as the tool for reactive power control.
  • the input of the VSC is connected to a capacitor, which is acting as a DC voltage source.
  • the converter is creating a variable AC voltage. This is done by connecting the voltages of the capacitor or capacitors directly to any of the converter outputs using the valves in the VSC.
  • PWM Pulse Width Modulation
  • the input DC voltage can be kept constant when creating output voltages that in average are sinusoidal.
  • the amplitude, the frequency and the phase of the AC voltage can be controlled by changing the switching pattern.
  • the VSC uses a switching frequency greater than 1 kHz.
  • the AC voltage across the reactor at full reactive power is only a small fraction of the AC voltage, typically 15%. This makes the compact STATCOM close to an ideal tool for fast reactive power compensation.
  • the IGBT has been chosen as the most appropriate power device. IGBT allows connecting in series, thanks to low delay times for turn-on and turn- off. It has low switching losses and can thus be used at high switching frequencies.
  • devices are available with both high power handling capability and high reliability, making them suitable for high power converters.
  • GTOs Gate Turn-Off thyristors
  • IGCTs Integrated Gate Commutated Thyristors
  • MOSFETs any self commutated device.
  • the power needed for gate control can be taken from the main circuit. This is highly advantageous in high voltage converters, where series connecting of many devices is used.
  • the converter topology for a compact STATCOM may be a two level configuration.
  • the output of each phase can be connected to either the positive pole or the negative pole of the capacitor.
  • the DC side of the converter is floating, or in other words, insulated relative to ground.
  • the two-level topology makes two numbers of output voltage combinations possible for each phase on the AC-side.
  • One such converter topology is shown in fig. 1.
  • the compact STATCOM described so far does only compensate for reactive power.
  • the concept of DYNAPOW is to connect a battery energy storage to a compact STATCOM, and thus obtain an add-on feature to the existing compact STATCOM, which creates a platform for dynamic and active power compensation.
  • the construction may be used e.g. as a spinning reserve and for compensating for fluctuating energy levels in the network.
  • the upper limit of the apparent power of the compact STATCOM is around 120 MVA. Since the maximum phase current is limited to approximately 1,8 kA, due to valve transistor current capability, the VSC must be connected to a high AC voltage and thus also the DC voltage of the VSC becomes high.
  • the loop inductance of the VSC in figure 3 should be small in order to limit over voltages and to be able to switch as fast as possible in order to decrease the losses. Therefore, the VSC together with the DC capacitor should be built in a compact way to reduce the commutation inductance, i.e., loop inductance.
  • a chain- link based converter comprises a number of series-connected cell modules, each cell comprising a capacitor, besides the valves.
  • a chain-link cell module may consist of four IGBT positions and a DC link Capacitor bank as shown schematically in figure 2.
  • Each of the three VSC phases consists of a number of chain- link cells, here shown in series in the general diagram of figure 4 for a delta connected arrangement. The phases can also be connected in an Y-arrangement.
  • the number of cells in series in each phase is proportional to the AC voltage rating of the system and can, for high AC voltage systems, consequently include a large number of cells.
  • the object of the present invention is thus to obtain an improved modular voltage source converter (VSC) that is able to dynamically provide active power for e.g. increased power quality management.
  • VSC modular voltage source converter
  • modular VSC comprising one or more phases (Ll, L2, L3).
  • Each of the phases comprises converter cell modules connected in series to each other.
  • At least one converter cell module in a phase is further assigned a separate distributed energy source, wherein at least the energy source is accommodated in a separate housing.
  • the invention also relates to an energy source unit comprising at least one energy source for converter cell modules of a voltage source converter (VSC) comprising one or more phases (Ll, L2, L3). Each of the phases comprises converter cell modules connected in series to each other.
  • the energy source unit further comprises a separate housing to accommodate at least the at least one energy source.
  • the converter cell modules can be dispersed and each converter cell module may be placed in or near a housing, which contains at least one small energy source.
  • the housing may be fire-proof, e.g. a fire cell, which will prevent a fire to spread and also minimize the damage if a part of the energy source fails and starts to burn.
  • the modular VSC with energy sources may be used for example to control the voltage on the network (e.g. a transmission network, a sub transmission network or a distribution network), by consuming or injecting reactive and active power to the network.
  • the network e.g. a transmission network, a sub transmission network or a distribution network
  • Figure 1 illustrates a prior art two-level static compensator.
  • Figure 2 illustrates a cell module of a chain- link voltage source converter.
  • Figure 3 illustrates the concept of DYNAPOW with voltage source converter and battery energy storages.
  • Figure 4 illustrates a chain-link converter connected in delta.
  • Figure 5 illustrates a distributed chain-link converter connected in delta together with distributed energy sources according to one embodiment of the invention.
  • Figure 6 illustrates a phase of a distributed chain- link converter together with distributed energy sources according to one embodiment of the invention.
  • FIG. 7 illustrates one embodiment according to the invention.
  • FIG. 1 illustrates a prior art two-level static compensator 1 without any transformers to step down the power network voltage.
  • the static compensator 1 comprises a voltage source converter (VSC) 2 connected at its DC side to a capacitor 3 and at its AC-side to a power network 8, also denoted grid.
  • VSC voltage source converter
  • the conventional two-level VSC 2 comprises three phase-legs Pl, P2, P3 (the phases are denoted Ll, L2, L3 when describing the present invention), each phase-leg consisting of two series-connected valves.
  • the two valves of phase-leg Pl are indicated at reference numerals 9a, 9b.
  • Each valve 9a, 9b in turn comprises a transistor with an anti-parallel diode, or rather, in order to manage high voltages, each valve comprises a number of series-connected transistors, for example IGBTs, each IGBT having an anti-parallel diode.
  • the VSC 2 is connected to the grid 8, in figure 1 comprising a three phase network, via a phase reactor 4, via an optional starting resistor 5 connected in parallel with a switch 6 and via an AC circuit breaker 7 in each phase.
  • a starting resistor 5 may be used in series with each converter phase, if the energizing current is too high for the converter.
  • Each phase comprises such phase reactor, circuit breaker and if needed starting resistor together with switch.
  • the respective phases are connected to the middle point of the respective phase- leg Pl, P2, P3, i.e. connected between the respective valves as illustrated in the figure. It is possible to reduce the number of components by equipping (if needed) only two of the phases with the starting resistor connected in parallel with the switch. Only one phase is described in the following in order to simplify the description, but it is understood that the phases are similar.
  • the circuit breaker 7 When the grid-connected VSC 2 is to be energized and started, the circuit breaker 7 is switched so as to provide a current path from the grid 8 through, if needed, the starting resistor 5, the phase reactor 4, and through the diodes of the VSC 2 so as to charge the capacitor 3.
  • the starting resistor 5 When the capacitor voltage has reached a predetermined level, the starting resistor 5 is short-circuited by closing the parallel-connected switch 6. As the starting resistor 5 is short-circuited, the capacitor voltage will increase a bit more and when it is high enough, the valves of the VSC 2 are deblocked and start to switch. The capacitor voltage is then controlled up to its reference value.
  • the starting resistor 5 is provided in order to protect the diodes of the VSC 2 from being damaged by a too high and/or too long-lasting current surge, which could occur upon closing the AC circuit breaker 7 without the use of the starting resistor 5.
  • the stress put on the valves, and in particular the diodes, of the VSC 2 depend on several factors, for example the size of the DC-side capacitor 3, the size of the phase reactors 4 and on the voltage levels of the power network 8.
  • FIG. 2 illustrates one converter cell module, also denoted converter link or chain-link cell module, of a modular converter applicable in the present invention.
  • the cell module 10 may comprise four valves 11, 12, 13, 14, each valve including a transistor switch, such as an IGBT.
  • IGBT In the following an IGBT is used as an example, but it is noted that other semiconductor devices could be used, for example gate turn-off thyristors (GTOs), Integrated Gate Commutated Thyristors (IGCTs), MOSFETs or any self commutated device.
  • GTOs gate turn-off thyristors
  • IGCTs Integrated Gate Commutated Thyristors
  • MOSFETs any self commutated device.
  • a free-wheeling diode also denoted anti-parallel diode, is connected in parallel with each IGBT. The diode conducts in the opposite direction of the IGBT.
  • valves 11, 12, 13, 14 are connected in an H-bridge arrangement with a capacitor unit 15.
  • a chain- link cell module VSC is shown in figure 4, here connected in delta.
  • the VSC may of course instead be connected in Y.
  • a starting resistor together with a switch may be added in each phase of the delta- or Y-connected converter cell module VSC to reduce stress of the diodes in the converter cell modules during energizing.
  • the present invention relates to a modular VSC comprising one or more phases (Ll, L2, L3), wherein each of the phases comprises converter cell modules 10 connected in series to each other.
  • At least one converter cell module 10 in a phase is assigned a separate distributed energy source 17, wherein at least the energy source 17 is accommodated in a separate housing 18.
  • FIG 6 One embodiment is schematically illustrated in figure 6, where a phase of the modular VSC is shown. Here it is only the energy source 17 that is accommodated in the housing 18, and the converter cell module 10 is situated outside in close vicinity to the housing 18. Accordingly, at least one converter cell module 10 in a phase is capable of generating active power, and the converter cell module 10 with assigned energy source 17 may be placed together at distant places, separate from the other converter cell modules 10 in a phase.
  • the housing 18 is preferably provided with connection means to connect the energy source 17 to the converter cell module 10.
  • connection means to connect the energy source 17 to the converter cell module 10.
  • two or more converter cell modules 10 in a phase are assigned a separate distributed energy source 17 each, wherein at least two of the separate distributed energy sources 17 are accommodated in a common separate housing 18.
  • the housing 18 then preferably is provided with connection means to connect the energy sources 17 to the converter cell modules 10.
  • the at least one converter cell module 10 in a phase assigned a separate energy source 17 is accommodated in the separate housing 18.
  • a compact building block with active power compensation capabilities for a VSC is achieved that simplifies the building of a modular VSC.
  • FIG 5 One example of this embodiment is illustrated in figure 5, where all the phases of the modular VSC are shown. It is further important to keep loop inductance low inside the converter cell module 10. However, between the cell modules 10, the size of the inductance does not matter. Therefore, the converter cell modules 10 may be placed distant to each other. The converter cell modules 10 may hence be accommodated in the same separate housing 18 as the assigned separate energy source 17.
  • the housing 18 is then preferably provided with connection means to connect the converter cell module(s) 10 to e.g. other converter cell modules 10, or another housing 18.
  • all cell modules 10 in a phase are each assigned a separate distributed energy source 17 and are accommodated in separate housings 18, together with their assigned separate distributed energy source 18.
  • the two or more converter cell modules 10 in a phase are accommodated in the same common separate housing 18.
  • different constellations of building blocks with active power compensation are possible.
  • the housing 18 also accommodates at least one converter cell module 10 without assigned energy source(s) 17. It is thus possible to have one housing 18 accommodating e.g. two converter cell modules 10 with assigned distributed energy sources 17, together with three other converter cell modules 10 without assigned distributed energy source 17. Many other constellations are of course possible within the scope of the invention defined by appending claims.
  • the converter cell modules 10 in the housing 18 are connected in series, and the housing 18 advantageously comprises connecting means for connecting to other converter cell modules 10 etc.
  • the housing(s) 18 is/are fire-proof.
  • the energy sources 17 are shielded from fire starting outside of the housings 18. If a fire starts inside the housing 18, other equipment in the modular VSC will be shielded from the fire by the housing 18, and the risk of destroying more active energy sources 17 etc of the modular VSC in case of fire is much reduced.
  • the fire-proof housing 18 may be made in a material that is heat-resistant, such as metal, hard metal or any other kinds of fire- and heat-resistant material.
  • each converter cell module 10 can be dispersed and each converter cell module 10 can be placed in or near each fire cell, which contains the small energy source, as illustrated according to the examples in figure 5 and 6.
  • the distributed energy source(s) 17 of a phase constitute the total active power demand of that phase. Consequently, an active power source that matches the DC voltage of the converter cell module 10 is obtained. Due to the possibility to distribute both the converter cell modules 10 and the total energy source, a more flexible and safer module- based VSC with active power compensation is achieved, than prior known VSC with e.g. the DYNAPOW concept. Costs for building the modular VSC with active power compensation may also be reduced, as converter cell modules 10 with energy sources 17 accommodated in a housing 18 may be mass produced with standard components. No single large energy source has to be tailor made for the VSC, which is not easily expanded if the VSC is to be enlarged in capacity.
  • the footprint of the VSC may also be optimized or customer designed and more easily handled, as the cell modules 10 and assigned separate energy sources 17 may be placed at more distant locations than before, as the inductance between the cell modules 10 does not have to be kept low.
  • the two- or three-level VSC used in the DYNAPOW concept results in high dv/dt switching in the converter and the DC side must be grounded to avoid capacitive stray currents between the battery strings and the ground.
  • the DC side grounding results in high level harmonics on the AC side and therefore a transformer must be used to trap the harmonics.
  • the module-based VSC is a multi-level converter that produces low amounts of dv/dt and little harmonics and therefore the capacitive stray currents between the energy sources 17 and the cell modules 10 are very small and no special grounding arrangement is necessary.
  • the distributed energy source 17 is a Li-Ion battery.
  • This embodiment is advantageous, as the Li-Ion battery has high performance characteristics. As the Li-Ion battery may start burning if mistreated, it is important to prevent that a fire in a single distributed energy source 17 starts to spread to the other energy sources 17. By accommodating the distributed Li-Ion batteries in separate fire-proof housings 18, this risk is much reduced.
  • the distributed energy source 17 is any of a battery of another type than the Li-Ion battery, a fuel-cell, a solar panel system, a hydroelectric power system or a wind turbine.
  • the distributed energy sources 17 are different kinds of energy sources.
  • one distributed energy source may be a Li-Ion battery, the second a fuel cell, the third a solar panel system etc.
  • the modular VSC may thus be used together with different kinds of energy sources when needed, and e.g. does not have to rely on a single distributor of energy sources.
  • each of the converter cell modules 10 comprises four valves 11, 12, 13, 14 arranged in a full-bridge connection. This embodiment is shown in the figures 2, 5 and 6. According to another embodiment, each of the converter cell modules 10 comprises two valves 11, 14 arranged in a half-bridge connection. This embodiment is a variant that is not exemplified in the figures, as the other essential features of this embodiment of the invention are the same as in the full-bridge connection embodiment.
  • each valve 11, 12, 13, 14 in the converter cell modules 10 comprises an insulated gate polar transistor (IGBT) with an anti-parallel diode.
  • IGBTs Gate Turn-Off thyristors
  • IGCTs Integrated Gate Commutated Thyristors
  • MOSFETs any self commutated device
  • the present invention further relates to an energy source unit 19 comprising at least one energy source 17 for converter cell modules 10 of a voltage source converter (VSC) comprising one or more phases (Ll, L2, L3), wherein each of the phases comprises converter cell modules 10 connected in series to each other.
  • VSC voltage source converter
  • the energy source unit 19 further comprises a separate housing 18 to accommodate at least the at least one energy source 17. Consequently, an energy source unit 19 is obtained that is easily placed at various locations, and that has a footprint that is relatively small.
  • the separate housing 18 is provided with connection means to connect the at least one energy source 17 to converter cell module(s) 10.
  • the energy source 17 is advantageously connected in parallel with the capacitor unit 15, as shown in figure 6.
  • the separate housing 18 is adapted to also accommodate at least one converter cell module 10.
  • the separate housing 18 is then preferably provided with connection means to allow connection to other housings 18 or converter cell modules 10 etc.
  • the separate housing 18 is adapted to accommodate five converter cell modules 10 and two energy sources 17, wherein the two energy sources 17 are connected to one of the five converter cell modules 10 each. This embodiment is illustrated in figure 7.
  • a building component for a modular VSC is obtained, that is pre-sized and wherein the parts matches each other, i.e. the energy source 17 matches the converter cell module 10, in the building component.
  • Different building components are then easily build together to form a compact STATCOM that may compensate for both reactive and active power.
  • the STATCOM is may thus be built according to different power demands.
  • the housing 18 of the energy source unit 19 is fire-proof.
  • the energy source(s) 17 inside the housing is/are shielded from fire starting outside of the housing 18, and other parts of the construction outside the energy source unit 19 are shielded from fire starting inside the housing 18. Accordingly, a building block to build up a compact STATCOM with both reactive and active power compensation is obtained, wherein the risk that a fire in an energy source 17 destroys large parts of the energy source is greatly reduced.
  • the at least one energy source 17 is a Li-Ion battery.
  • Li- Ion batteries have high performance characteristics, making this embodiment advantageous. It is then advantageous to have fire-proof housings.
  • the at least one energy source 17 is any of a fuel-cell, a solar panel system, a hydroelectric power system and a wind turbine. Other suitable energy sources may also be possible to use in conjunction with the converter cell modules 10.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inverter Devices (AREA)

Abstract

L'invention concerne un convertisseur de source de tension modulaire (VSC) qui comporte une ou plusieurs phases (L1, L2, L3). Chacune des phases comporte des modules de cellule de convertisseur connectés en série. Au moins un module de cellule de convertisseur dans une phase est attribué à une source d'énergie distribuée séparée, au moins la source d'énergie étant reçue dans un boîtier séparé. L'invention concerne en outre une unité de source d'énergie qui comporte au moins une source d'énergie pour des modules de cellule de convertisseur d'un convertisseur de source de tension.
PCT/EP2009/052887 2009-03-11 2009-03-11 Convertisseur de source de tension modulaire et unité de source d'énergie WO2010102667A1 (fr)

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PCT/EP2009/052887 WO2010102667A1 (fr) 2009-03-11 2009-03-11 Convertisseur de source de tension modulaire et unité de source d'énergie

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CN102148579A (zh) * 2010-12-20 2011-08-10 中国电力科学研究院 一种模拟mmc多个子模块的等时间常数缩小子模块板
WO2012010056A1 (fr) * 2010-07-22 2012-01-26 荣信电力电子股份有限公司 Structure topologique de stockage d'énergie sur batterie sans transformateur
WO2012024984A1 (fr) * 2010-07-22 2012-03-01 荣信电力电子股份有限公司 Topologie de stockage d'énergie de batterie sans transformateur fondée sur un convertisseur multiniveaux modulaire
WO2012136252A1 (fr) * 2011-04-05 2012-10-11 Abb Research Ltd Convertisseur multi-niveaux modulaire avec stockages dans des batteries connectées à des cellules
EP2525483A1 (fr) 2011-05-17 2012-11-21 Ingeteam Technology S.A. Convertisseur de courant modulaire avec des accumulateurs d'énergie
EP2544327A1 (fr) * 2011-07-08 2013-01-09 Siemens Aktiengesellschaft Dispositif d'accumulation d'énergie et une charge fluctuant
CN102901889A (zh) * 2012-09-13 2013-01-30 国网智能电网研究院 一种电压源型换流器子模块的运行试验装置及其试验方法
WO2013182357A1 (fr) * 2012-06-04 2013-12-12 Robert Bosch Gmbh Procédé de pontage dynamique d'éléments d'un système accumulateur d'énergie
WO2012140008A3 (fr) * 2011-04-15 2013-12-12 Siemens Aktiengesellschaft Convertisseur à niveaux multiples et procédé de démarrage d'un convertisseur à niveaux multiples
WO2012156261A3 (fr) * 2011-05-18 2013-12-27 Siemens Aktiengesellschaft Ensemble convertisseur
WO2014023331A1 (fr) 2012-08-07 2014-02-13 Abb Technology Ltd Système de convertisseur à liaison en chaîne comprenant différentes sources dc et procédé de fonctionnement
WO2014116257A1 (fr) * 2013-01-28 2014-07-31 General Electric Company Convertisseur modulaire pour applications sous-marines
US8922054B2 (en) 2011-07-31 2014-12-30 General Electric Company Distributed DC energy storage for supplying an intermittent subsea load
EP2725696A4 (fr) * 2011-06-24 2015-05-06 Hitachi Ltd Dispositif de conversion de puissance et dispositif de commande associé
WO2015113604A1 (fr) * 2014-01-30 2015-08-06 Siemens Aktiengesellschaft Convertisseur et procédé pour fournir une alimentation sans interruption à un réseau
WO2016112986A1 (fr) * 2015-01-15 2016-07-21 Siemens Aktiengesellschaft Dispositif pourvu d'au moins un circuit série et son procédé de fonctionnement
CN106160542A (zh) * 2015-04-02 2016-11-23 国家电网公司 一种具有电位隔离的模块化多电平换流器物理模拟装置
CN106253319A (zh) * 2016-08-21 2016-12-21 国家电网公司 一种基于柔性直流组网技术的低压直流配电网的接地电路
EP3331144A1 (fr) * 2016-12-01 2018-06-06 General Electric Technology GmbH Améliorations apportées ou relatives à des convertisseurs de puissance à courant continu à haute tension
EP3152524A4 (fr) * 2014-06-06 2018-06-27 Kevin Stephen Davies Procédé et système de conversion de puissance
US10069430B2 (en) 2013-11-07 2018-09-04 Regents Of The University Of Minnesota Modular converter with multilevel submodules
WO2020007464A1 (fr) * 2018-07-04 2020-01-09 Siemens Aktiengesellschaft Convertisseur multipoint modulaire doté d'unités d'accumulation modulaires
EP2777147B1 (fr) * 2011-12-19 2020-03-18 Valeo Siemens eAutomotive Germany GmbH Circuit convertisseur de courant
EP4415206A1 (fr) * 2023-02-09 2024-08-14 Hitachi Energy Ltd Segment de stockage d'énergie pour un système de stockage d'énergie et procédé de commande d'un système de stockage d'énergie

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WO2012010056A1 (fr) * 2010-07-22 2012-01-26 荣信电力电子股份有限公司 Structure topologique de stockage d'énergie sur batterie sans transformateur
WO2012024984A1 (fr) * 2010-07-22 2012-03-01 荣信电力电子股份有限公司 Topologie de stockage d'énergie de batterie sans transformateur fondée sur un convertisseur multiniveaux modulaire
CN102148579A (zh) * 2010-12-20 2011-08-10 中国电力科学研究院 一种模拟mmc多个子模块的等时间常数缩小子模块板
WO2012136252A1 (fr) * 2011-04-05 2012-10-11 Abb Research Ltd Convertisseur multi-niveaux modulaire avec stockages dans des batteries connectées à des cellules
US8760122B2 (en) 2011-04-05 2014-06-24 Abb Research Ltd Modular multilevel converter with cell-connected battery storages
CN103563202A (zh) * 2011-04-05 2014-02-05 Abb研究有限公司 具有单元-连接的电池储存装置的模块化多级转换器
WO2012140008A3 (fr) * 2011-04-15 2013-12-12 Siemens Aktiengesellschaft Convertisseur à niveaux multiples et procédé de démarrage d'un convertisseur à niveaux multiples
EP2525483A1 (fr) 2011-05-17 2012-11-21 Ingeteam Technology S.A. Convertisseur de courant modulaire avec des accumulateurs d'énergie
WO2012156261A3 (fr) * 2011-05-18 2013-12-27 Siemens Aktiengesellschaft Ensemble convertisseur
US9318979B2 (en) 2011-05-18 2016-04-19 Siemens Aktiengesellschaft Converter arrangement having a filter
EP2725696A4 (fr) * 2011-06-24 2015-05-06 Hitachi Ltd Dispositif de conversion de puissance et dispositif de commande associé
WO2013007517A3 (fr) * 2011-07-08 2013-11-07 Siemens Aktiengesellschaft Système d'accumulation d'énergie et consommateur à charge alternative
EP2544327A1 (fr) * 2011-07-08 2013-01-09 Siemens Aktiengesellschaft Dispositif d'accumulation d'énergie et une charge fluctuant
US8922054B2 (en) 2011-07-31 2014-12-30 General Electric Company Distributed DC energy storage for supplying an intermittent subsea load
EP2777147B1 (fr) * 2011-12-19 2020-03-18 Valeo Siemens eAutomotive Germany GmbH Circuit convertisseur de courant
WO2013182357A1 (fr) * 2012-06-04 2013-12-12 Robert Bosch Gmbh Procédé de pontage dynamique d'éléments d'un système accumulateur d'énergie
WO2014023331A1 (fr) 2012-08-07 2014-02-13 Abb Technology Ltd Système de convertisseur à liaison en chaîne comprenant différentes sources dc et procédé de fonctionnement
US10199823B2 (en) 2012-08-07 2019-02-05 Abb Schweiz Ag Chain-link converter system with different DC-sources and method for operation
CN102901889A (zh) * 2012-09-13 2013-01-30 国网智能电网研究院 一种电压源型换流器子模块的运行试验装置及其试验方法
WO2014116257A1 (fr) * 2013-01-28 2014-07-31 General Electric Company Convertisseur modulaire pour applications sous-marines
US10069430B2 (en) 2013-11-07 2018-09-04 Regents Of The University Of Minnesota Modular converter with multilevel submodules
WO2015113604A1 (fr) * 2014-01-30 2015-08-06 Siemens Aktiengesellschaft Convertisseur et procédé pour fournir une alimentation sans interruption à un réseau
EP3152524A4 (fr) * 2014-06-06 2018-06-27 Kevin Stephen Davies Procédé et système de conversion de puissance
WO2016112986A1 (fr) * 2015-01-15 2016-07-21 Siemens Aktiengesellschaft Dispositif pourvu d'au moins un circuit série et son procédé de fonctionnement
CN106160542A (zh) * 2015-04-02 2016-11-23 国家电网公司 一种具有电位隔离的模块化多电平换流器物理模拟装置
CN106160542B (zh) * 2015-04-02 2020-03-06 国家电网公司 一种具有电位隔离的模块化多电平换流器物理模拟装置
CN106253319A (zh) * 2016-08-21 2016-12-21 国家电网公司 一种基于柔性直流组网技术的低压直流配电网的接地电路
WO2018100051A1 (fr) * 2016-12-01 2018-06-07 General Electric Technology Gmbh Perfectionnements apportés ou se rapportant à des convertisseurs de secteur ccht
EP3331144A1 (fr) * 2016-12-01 2018-06-06 General Electric Technology GmbH Améliorations apportées ou relatives à des convertisseurs de puissance à courant continu à haute tension
CN110100380A (zh) * 2016-12-01 2019-08-06 通用电器技术有限公司 Hvdc功率转换器中或与之有关的改进
WO2020007464A1 (fr) * 2018-07-04 2020-01-09 Siemens Aktiengesellschaft Convertisseur multipoint modulaire doté d'unités d'accumulation modulaires
US11356033B2 (en) 2018-07-04 2022-06-07 Siemens Energy Global GmbH & Co. KG Modular multi-point converter with modular storage units
EP4415206A1 (fr) * 2023-02-09 2024-08-14 Hitachi Energy Ltd Segment de stockage d'énergie pour un système de stockage d'énergie et procédé de commande d'un système de stockage d'énergie
WO2024165323A1 (fr) * 2023-02-09 2024-08-15 Hitachi Energy Ltd Segment de stockage d'énergie pour un système de stockage d'énergie et procédé de commande d'un système de stockage d'énergie

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