Voltage-Source Control of PV Inverter in a CERTS Microgrid

Du, Wei; Jiang, Qinglin; Erickson, Micah J.; Lasseter, R.H.

doi:10.1109/tpwrd.2014.2302313

Cited by 114 publications

(80 citation statements)

References 18 publications

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“…To avoid or lower such costs, another possibility is to operate the RESs as non-dispatch-able sources, which is only possible if there are other dispatch-able sources for regulating the network voltage. In case where such dispatch-able sources are not present or not strong like in some remote MGs, the RESs must be operated as dispatch-able sources, which is also the recommendation mentioned by CERTS in [18]. When that happens (droop-controlled RESs), dc-link voltage V DC1 of RES1 with insufficient capacity will gradually collapse, since power delivered to the dc-link by the boost converter in Fig.…”

Section: Example Systemmentioning

confidence: 99%

“…This is subsequently found to be non-optimized when compared with schemes that use the same control structure in both modes. The droop concept from the Consortium for Electric Reliability Technology Solutions (CERTS) is then raised in [18], where PV inverters have been droop-controlled to keep the dc bus voltage stable during load transient, and automatically reduce generation during low-load islanding. The CERTS concept has however been investigated with only single-stage inverters.…”

mentioning

confidence: 99%

“…To avoid such costs, the RESs can be made non-dispatch-able, but only when other dispatch-able sources are presented. Making them non-dispatch-able also does not meet the CERTS requirement mentioned in [18].…”

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confidence: 99%

See 2 more Smart Citations

An Enhanced Dual Droop Control Scheme for Resilient Active Power Sharing Among Paralleled Two-Stage Converters

Liu

Yang

Wang

et al. 2017

IEEE Trans. Power Electron.

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Abstract-Traditional droop-controlled system has assumed that generators can always generate the powers demanded from them. This is true with conventional sources, where fuel supplies are usually planned in advance. For renewable sources, it may also be possible if energy storage is available. Energy storage, usually as batteries, may however be expensive, depending on its planned capacity. Renewable sources are therefore sometimes installed as non-dispatch-able sources without storage. This may not be viable for remote grids, where renewable sources may be the only or major type of sources. In those cases, traditional droop scheme may not work well when its demanded power cannot be met by some renewable sources due to intermittency. When that happens, the system may become unstable with some sources progressively brought out of generation. To avoid such occurrence, an enhanced dual droop scheme is proposed for general two-stage converters with front rectifiers or dc-dc converters for conditioning powers from renewable sources and rear inverters for channeling powers to remote grids. Unlike the traditional droop scheme, the proposed dual droop scheme uses both dc-link voltage and generated powers for determining the required control actions, which have subsequently been proven stable by small-signal analysis. Experimental results have also verified the effectiveness of the dual droop scheme.

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Section: Example Systemmentioning

confidence: 99%

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confidence: 99%

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An Enhanced Dual Droop Control Scheme for Resilient Active Power Sharing Among Paralleled Two-Stage Converters

Liu

Yang

Wang

et al. 2017

IEEE Trans. Power Electron.

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“…In Educational Institutions have sophisticated and sensitive loads based on semiconductor and modern digital appliances, which are main cause of instability and poor reliability in PV microgrid [5].The Demand management system improves the stability of the PV Microgrid, by synchronize the loads and source in Educational intuitions. The strategies and control of Demand Management is based on real time operating system for voltage control and current control in PV Microgrid [4]. The renewable energy source, such as a solar wind source, cannot operate standalone for satisfactorily within the operating limits and meet the load demand in Educational Intuitions due to its intermittent nature.…”

Section: IImentioning

confidence: 99%

A Review on Microgrid for Educational Intuitions- Challenges

Bhavani¹

2017

IJRASET

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The future electricity sources in India must be green energy, flexible, accessible and sustainable. The Educational Institutions are a back bone of any country, which are planning major role in development of nation. In India maximum Educational Institutions have only day scholars and maximum electrical energy demand in Institutions between 9.00 AM to 4.00PM. The government of India introduce many programs for green campus development across the country, under this program solar power plant will be setup for fulfil the electrical demand in day time. The educational institution will implement the Microgrid in ON-Grid mode for fulfil the electrical demand from solar PV Power Plant. In this paper we are studying the major challenges for microgrid implementation in Educational Institutions in India.

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“…Microgrid refers to an integration of loads and distributed generation (DG) sources in low or medium voltage levels functioning as a power system for power generation and, if possible, as combined heat and power (CHP) [1][2][3][4]. A microgrid is utilized through two modes of connected or independently of the network.…”

Section: Introductionmentioning

confidence: 99%

Cooperative Energy Management of Hybrid DC Renewable Grid Using Decentralized Control Strategies

2016

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This paper attempted to control a hybrid DC microgrid in islanded operation mode using decentralized power management strategies. Proposed adaptive I/V characteristic for hybrid photovoltaic (PV) and battery energy storage system (BESS) and wind turbine generator (WTG) adapts the distributed energy resources (DER) behavior independently in accordance with the load demand. Hence, the PV module can spend its maximum power on load demand and spend the extra power for charging the BESS, which will regulate DC bus voltage and maintain the power balance within the microgrid. When load demand is beyond the maximum generation power of PV unit, WTG will supply the energy shortage. The proposed control system was applied on the DC microgrid in order to achieve control objectives through a decentralized procedure, without telecommunication links. In order to validate the proposed strategies, the control system was implemented on a DC microgrid within MATLAB/SIMULINK, where the simulation results were analyzed and validated.

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Voltage-Source Control of PV Inverter in a CERTS Microgrid

Cited by 114 publications

References 18 publications

An Enhanced Dual Droop Control Scheme for Resilient Active Power Sharing Among Paralleled Two-Stage Converters

An Enhanced Dual Droop Control Scheme for Resilient Active Power Sharing Among Paralleled Two-Stage Converters

A Review on Microgrid for Educational Intuitions- Challenges

Cooperative Energy Management of Hybrid DC Renewable Grid Using Decentralized Control Strategies

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