Peter kohnstam, 22 april 20, united states department of. Hvdc highvoltage direct current transmission unrivaled. As opposed to the conventional hvdc, its design provides technical as. Hvdc transmission and integration ac grid 1 rightofway comparison of 6,000mw hvdc and ac circuits joe mooney is a department manager at power engineers, inc. Basics of hvdc comparison hvdc classic hvdc plus vsc hvdc plus voltage sourced converter selfcommutated semiconductor switches with turnon turnoff capability, e. A highvoltage, direct current hvdc electric power transmission system also called a power superhighway or an electrical superhighway uses direct current for the bulk transmission of. Hvdc plus works well with weak systems as it does not need any external references to generate voltage or frequency. As the consortium leader, siemens was awarded a turnkey contract which comprises the converter stations for the hvdc plus system, including engineering, design, manufacturing, installation and commissioning of the hvdc transmission system.
The link below is a link to a brochure on siemens latest hvdc technology hvdc plus. Siemens wins order for first hvdc link between great. The hvdc plus from siemens, hvdc light from abb and hvdc maxsine from alstom are examples of the implementation of the mmc concept in applications for vsc hvdc transmission 1415. Development of functional specifications for hvdc grid. Hvdc highvoltage direct current transmission unrivaled practical experience open the catalog to page 1 an overview of worldwide lcc and vsc references siemens is a globally renowned, highly experienced technology partner for hvdc projects. Converter hvdc abb hvdc light siemens hvdc plus alstom hvdc maxsine based on transistor rather than thyristor igbt or similar simpler transformers no dc. Siemens has been awarded a contract to deliver two converter stations for the first highvoltage directcurrent hvdc link between great britain and denmark. Hvdc maxsine losses are based on the hvdc plus losses since the converter designs are very similar.
Hvdc classic siemens experience gezhoubanan qiao etzenricht 1993 wien sudost 1993 durnrohr 2014 1983 moyle 20 black sea transmission 1989 2004 2010 estlink 2 2007. Development of functional specifications for hvdc grid systems. Siemens to install indias first vsc hvdc link by saqib saeed 2017, march, 29 a consortium between siemens and sumitomo electric industries ltd. Principles of hvdc controls control of dc voltage dc voltage is varied by means of a converter bridge in rectifier operation the power flow is from the ac system to the dc system the. Siemens connects electricity grids of uk and belgium with. As opposed to the conventional hvdc, its design provides technical as well as economical advantages. Features and benefits of hvdc plus multilevel topology modular concept standard power electronics compactness of station design low switching frequency elimination of high frequency stresses conventional ac transformers proven siemens wintdc core hardware l l module 1 module 2 module n. Hvdc circuit breakers are difficult some mechanism must be included in the circuit breaker to force current to zero. Further below i link a paper i wrote over a year ago that describes how this technology is. The igbtbased siemens hvdc plus is build out of selfcommutated systems with indirect voltage link voltagesourced converters, vsc and operates with the newest type of the modular multilevelconverter mmc, which is used in the ultranet project, and has a transmission capacity up to 2000 mw at a voltage of 500 kv dc.
The siemens hvdc plus igbt technology is an innovative application in the field of hvdc transmission systems. Principlesof hvdc controls convertercontrol functions, dc voltagecontrol 1. Hvdc highvoltage direct current transmission unrivaled practical experience open the catalog to page 1 an overview of worldwide lcc and vsc references siemens is a globally renowned. The siemens hvdc transmission employing the voltage source converter modular multilevel technology is called the hvdc plus. Nemo link interconnector enables transmission of mw electricity using siemens hvdc plus technology siemens built converter stations housing the state of the art hvdc equipment in both herdersbrug belgium and richborough uk official opening ceremony on december 5 in herdersbrug near brugge with belgian and uk dignitaries.
Electronic pdf the global hvdc power supply market is expected to reach usd 3. Voltage source converter hvdc links the state of the art. Aty edris recently led a study investigating integration of novel permanent magnet hydro synchronous generators pmsgs to the alberta interconnected system in canada. This is a list of notable highvoltage directcurrent power transmission projects. Hvdc disadvantages hvdc is generally less reliable and has lower availability than hvac. Hvdc plus basics and principle of operation siemens. As a key enabler in the future energy system based on renewables, hvdc is truly shaping the grid of the future.
In january 2017, abb in consortium with bhel was awarded the scheme1 contract. Hvdc plus trans bay cable project worlds first mmcvsc technology in commercial operation 22 nov 20 e t ts 2 hvdc energy sector transmission solutions. Page 18 september 2017 em ts lts shvdc hvdc plus siemens as. Abb and hvdc the worlds first commercial highvoltage direct current hvdc link, situated between the swedish mainland and the island gotland, was delivered by abb already in the. Inelfe, the france spain hvdc plus interconnection is. Ptrs previous impression on this announcement emphasized abbs ability to win large power hvdc.
Electrical energy up to 6 gw can now be transmitted through hvdc lines, product line for traction and highvoltage direct current hvdc applications. Hvdc technology development for electricity networks. Hvdc plus is our latest development for ensuring economical power transmission and providing controlled power supply to the connected networks. The hvdcplus from siemens 12, hvdclight from abb, and hvdcmaxsine from alstom 14 are examples of the implementation of dscc concept in applications of vschvdc. Abb has participated in the delivery of more than half of the worlds around 170 hvdc links. Pdf modern hvdc plus application of vsc in modular. Hvdc plus is a highly controllable and flexible system and brings operational benefits to both transmission systems. Viking link will enable the exchange of electricity up to 1,400 megawatts mw to provide increased powersupply reliability and security to consumers in both countries. Abb and hvdc the worlds first commercial highvoltage direct current hvdc link, situated between the swedish mainland and the island gotland, was delivered by abb already in the 1950s. Siemens is offering voltage sourced converters for hvdc applications with ratings up to 250 mw under the trade name hvdcplus power link universal systems. Example of hvdc plus station 2 x 100 mw in principle, there are two configuration possibilities. Siemens has installed hvdc plus projects worldwide with a total. The siemens hvdc transmission employing the voltage source converter modular multilevel technology is called.
The hvdc plus from siemens 12, hvdc light from abb, and hvdc maxsine from alstom 14 are examples of the implementation of dscc concept in applications of vsc hvdc transmission. Lcc linecommutated converter hvdc classic vsc voltagesourced converter hvdc plus 01 41 39 02 40 03 04 05 06 07 10 08 10 09 12 14 15 11 16 17 18 19 20. Hvdc plus with modular multilevel converter basic scheme pm pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n u d phase unit v d igbt2 d2 d1 igbt1 power module pm power module electronics pme converter arm converter reactors converter module svc plus. Hvdc plus ist ein technologischer durchbruch fur hocheffiziente stromubertragung. Siemens hvdc plus in hvdc plus the acdc conversion and vice versa is carried out by an igbt insulated gate bipolar transistor arrangement known as a power module. Further below i link a paper i wrote over a year ago that describes how this technology is used in both of the above applications. Hvdc is an established technology that has been in. Mainly due to the extra conversion equipment and maintenance difficulty.
Hvdc high voltage direct current dc direct current. Hvdc vsc technology for offshore wind farm applications. Hvdc projects for longdistance transmission have two or rarely, more converter stations and a transmission. Hvdc plus with modular multilevel converter basic scheme pm pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n pm 1 pm 2 pm n u d phase unit v d. Hvdc plusbasics and principle of operation request pdf. The hvdcplus from siemens, hvdclight from abb and hvdcmaxsine from alstom are examples of the implementation of the mmc concept in applications for vschvdc. The siemens hvdc plus solution, with two parallel links and four 4 cables with a dc voltage of 320 kv, will couple the two converter stations and will be connected via a 400 kv ac interface. S time to connect hvdc highvoltage direct current is a highly efficient alternative for transmitting large amounts of electricity over long distances and for special purpose applications. The siemens hvdc plus solution, with two parallel links and four 4 cables with a dc voltage of 320 kv, will couple the two converter stations and will be connected via a 400 kv ac interface to rtes transmission grid, as well as a 400 kv ac interface to rees transmission grid.
Siemens has been awarded a contract to deliver two converter stations for the first high voltage directcurrent hvdc link between great britain and denmark. It is said to be the first offshore grid connection worldwide to take up commercial operation with efficient directcurrent technology. Hvdc transmission based on vsc is a relatively a new technology since it uses igbts insulated gate bipolar transistor. This article describes the new dynamic simulation model called hvdcplu1for the simulation of hvdc plus in psse. Voltage source converter solution hvdc ieee pes boston.
They have extended the use of hvdc down to blocks as small as a few tens of megawatts and overhead lines as short as a few dozen kilometers. Hvdc solutions for integration of the renewable energy resources marcus haeusler hvdc lead engineer. Hvdc highvoltage direct curent r ansmistr sion siemens. This paper focuses upon hvdc transmission systems with high ratings, i. Existing connection under construction future plan. Siemens high voltage direct current systems hvdc provide the most efficient way of energy transmission over long distances and to support the improvement of the grid stability. Siemens has installed hvdc plus projects worldwide with a total capacity of 6.
Modern hvdc plus application of vsc in modular multilevel converter topology published on jul 1, 2010 in isie international symposium on industrial electronics doi. The igbtbased siemens hvdc plus is build out of selfcommutated systems with indirect voltage link voltagesourced converters, vsc and operates with the newest type of the. Presented at the 40th meeting of study committee b4 and colloquium on role of hvdc, facts and emerging technologies in evolving power systems, bangalore sept. Principles of concept a new modular multilevel converter mmc topology has been introduced by siemens into hvdc applications during. Hvdc plus siemens projects based on hvdcplus technology. Jul 01, 2010 modern hvdc plus application of vsc in modular multilevel converter topology published on jul 1, 2010 in isie international symposium on industrial electronics doi. The manufacturer abb group calls this concept hvdc light, while siemens calls a similar concept hvdc plus power link universal system and alstom call their product based upon this technology hvdc maxsine. The offshore platform of the borwin2 grid connection using siemens hvdc plus technology is located northwest of the german island of borkum in the north sea.
Hvdc transmission and integration ac grid 1 rightofway comparison of 6,000mw hvdc and ac. Inverter ud control no change in dc voltage, but change in dc current. Hvdc and facts, which can eliminate the drawbacks of twolevel topology and provides advantages with respect to the performance as well 2. One of the secrets of the current economic momentum is that high energy c hvdc valve.
Hvac 3phase lower transmission loss because of no reactive loss lower. Siemens wins order for first hvdc link between great britain. Hvdc projects for longdistance transmission have two or rarely, more converter stations and a transmission line interconnecting them. Siemens to install indias first vsc hvdc link power. Generally overhead lines are used for interconnection, but an important class of hvdc projects use submarine power cables. Versatility at your service as an innovation leader, siemens has developed an advanced, universally applicable solution for power transmission with its voltagesourced converter vsc technology hvdc plus.
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