Power electronics in HVDC power transmission

Brough, C.A.; Davidson, Colin; Wheeler, Joy

doi:10.1049/pe:19940510

Cited by 8 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Var compensators [16], [17], chopper-fed dc drives, HVDC conversion [18], ac machine drives [19], heating control [20], [21], lighting and welding control and solid state circuit breakers [22].…”

Section: Semi-controlled Semiconductor Devicesmentioning

confidence: 99%

Internal model design for power electronic controllers

Gunasekara¹

2019

15th IET International Conference on AC and DC Power Transmission (ACDC 2019)

View full text Add to dashboard Cite

This thesis deals with the problem of control system design for power electronic controllers when high performance is desired despite unaccounted for internal and external conditions. Factors such as parameter variations, operating condition changes, and filtering and measurements delays, may adversely impact the performance of a circuit whose controller design is not immune to external and internal disturbances. The thesis explores the method of internal model design as a viable approach for designing controllers with superior performance despite system variations. Following a presentation of the theoretical background of the internal model design, the thesis considers two examples of state variable models, improving the stability of a voltage source converter and speed control of an induction motor. Conclusions show the new control system is more stable and offers better controllability despite unexpected system variations, compared to classical control system.

show abstract

Section: Semi-controlled Semiconductor Devicesmentioning

confidence: 99%

Internal model design for power electronic controllers

Gunasekara¹

2019

15th IET International Conference on AC and DC Power Transmission (ACDC 2019)

View full text Add to dashboard Cite

show abstract

“…With significant advancements in semiconductor devices over the past few decades, an increased interest in renewable energy sources, and increased demand for interconnection among ac and high voltage dc networks, there has been heightened interest in power electronic converters. Power converters allow for interconnections to be formed between ac and dc networks and between dc components operating at different voltage levels [27,28,29]. In a broad sense, power electronics refers to the part of a system that controls and regulates power flow.…”

Section: Power Converter and Grid Models 21 Introductionmentioning

confidence: 99%

Power Flow Control In Hybrid Ac/Dc Microgrids

Matthews¹

View full text Add to dashboard Cite

“…Some references to Indian power systems conditions are reported in literature. One of them deals with Chandrapur HVDC interconnecting link design details [4]. In [5], [6], interconnections in South Asia in Indian context are briefly described.…”

mentioning

confidence: 99%

Operating experience of regional interconnections in India

Roy¹,

Khaparde

Pentayya³

et al.

IEEE Power Engineering Society General Meeting, 2005

View full text Add to dashboard Cite

Abstract-That regional interconnections can benefit interconnected grids is accepted by the decision makers owing to optimal utilization of resources, diversity of load patterns, increased security and improved system performance. However, there are "oportunities and threats" depending on how commercial, operational and security issues are tackled. The threats stem from potential seaming problems in the integration and lack of adequate defense mechanisms. In India, five large sized regional grids operate and these are interconnected either synchronously or asynchronously. The operating strategies for interconnections have evolved through trial operations on exiting system which are covered in this paper. The paper overviews the salient features of all the regional interconnections in India. The commercial mechanism, Availability Based Tariff (ABT), adopted by India has facilitated seamless integration on commercial front to a good extent as described in this paper. ABT links part of tariff with a universally available signal of system frequency. From experience gained over last few years, the operational and security issues have been discussed. With Open Access in operation, the interconnecting corridors have to play a significant role in the operation of the interconnected system. The need for evolving standards for the integrated operation became evident from the experience. The guiding principles for such standardization are also reported in this paper.

show abstract

Power electronics in HVDC power transmission

Cited by 8 publications

References 0 publications

Internal model design for power electronic controllers

Internal model design for power electronic controllers

Power Flow Control In Hybrid Ac/Dc Microgrids

Operating experience of regional interconnections in India

Contact Info

Product

Resources

About