Fault Ride Through Capability for Solar Inverters

Fujii, Kansuke; Yamada, Naohei; Okuma, Yasuhiro; Kanao, Norikazu

doi:10.1080/09398368.2012.11463821

Cited by 21 publications

(17 citation statements)

References 3 publications

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“…The amplitude is the same with the amplitude of the Vfu, when the grid voltage is balanced. Though the detailed calculation about cose is not described (refer [4]), cose is in phase of Vfu, which is u-phase voltage of the filtered grid voltage, even if two-phase short circuit occurs. This means that the inverter can flow a balanced current without changing phase, even if the phase of the grid voltage is suddenly changed because of two-phase short circuit.…”

Section: A Inverter Control{or Enabling Fault Ride Throughmentioning

confidence: 99%

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Power conditioner for stabilizing power disturbance caused of wind turbine generator system

Saga

Fujii

Yoda

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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In Japan, Feed in Tariff has started since July in 2012. Moreover only solar power is not attractive energy, a wind turbine generator is attractive energy from the point of view to reduce double carbon oxide emission. However, to connect the wind turbine generator system to the grid, the independent power producer (IPP) must compensate the power disturbance caused of the wind turbine. Thus, a power conditioner for stabilizing power disturbance is necessary. The authors have developed a new power conditioner using batteries in this paper. The control technique, specifications, circuit configuration and prototype test results are described.

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Section: A Inverter Control{or Enabling Fault Ride Throughmentioning

confidence: 99%

“…The V suvw is filtered with a Band pass filter to eliminate a high harmonic component, and the phase of the V suvw is set forward to compensate the phase delay caused of the output filter. In the phase reference calculation, cose is calculated with the following equation [4].…”

Section: A Inverter Control{or Enabling Fault Ride Throughmentioning

confidence: 99%

Power conditioner for stabilizing power disturbance caused of wind turbine generator system

Saga

Fujii

Yoda

2014

2014 International Power Electronics Conference (IPEC-Hiroshima 2014 - ECCE ASIA)

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“…(7) indicates that if the inverter output voltage V c is determined, the output current I o matches to the reference I o (k + 1) at the next sampling instant. The equation for the capacitor current I c in (7) can be rewritten as follows,…”

Section: Introductionmentioning

confidence: 99%

FRT capability of 100kHz single phase utility interactive inverter with FPGA based hardware controller

Hanashima

Yokoyama

2012

2012 15th International Power Electronics and Motion Control Conference (EPE/PEMC)

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In the near future, many distributed power systems will be connected to the utility line in the local area, the demand of the control accuracy to the utility interactive inverter will also become strict more than the present ability. The utility interactive inverter required FRT capability in the case of utility voltage fluctuation. Deadbeat control and PLL control with quasi dq transformation based on a 1MHz sampling were applied to the utility interactive inverter using FPGA based hardware controller. The FRT characteristics were verified through simulations and experiments. The superior characteristics of the proposed method was verified. The FPGA based hardware controller for the 100kHz career PWM inverter was designed and evaluated with experiments.

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“…In the new Italian grid code, it is required that the generation units serving low-voltage grid with the nominal power exceeding 6 kW should have the ability to ride through grid voltage faults, regardless of singlephase configuration or multi-phase systems [20]. Recently, a study done in Japan presented the low voltage ride through requirements on PV systems which are connected to singlephase low-voltage grids [21], [24]- [26]. Obviously, the challenges from high penetration PV systems are being forecasted.…”

Section: Evolution Of Pv Grid Codesmentioning

confidence: 99%

Suggested grid code modifications to ensure wide-scale adoption of photovoltaic energy in distributed power generation systems

Yang

Enjeti²,

Blaabjerg

et al. 2013

2013 IEEE Industry Applications Society Annual Meeting

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Abstract-Current grid standards seem to largely require low power (e.g. several kilowatts) single-phase photovoltaic (PV) systems to operate at unity power factor with maximum power point tracking, and disconnect from the grid under grid faults. However, in case of wide-scale penetration of single-phase PV systems in the distributed grid, the disconnection under grid faults can contribute to: a) voltage flickers, b) power outages, and c) system instability. In this paper, grid code modifications are explored for wide-scale adoption of PV systems in the distribution grid. More recently, Italy and Japan, have undertaken a major review of standards for PV power conversion systems connected to low voltage networks. In view of this, the importance of low voltage ride-through for singlephase PV power systems under grid faults along with reactive power injection is studied in this paper. Three reactive power injection strategies are discussed in detail. Simulations are presented for a PV power system with low voltage ride-through capability and ancillary services. An example of a full-bridge single-phase grid-connected system is tested experimentally to demonstrate the potential benefits.

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Fault Ride Through Capability for Solar Inverters

Cited by 21 publications

References 3 publications

Power conditioner for stabilizing power disturbance caused of wind turbine generator system

Power conditioner for stabilizing power disturbance caused of wind turbine generator system

FRT capability of 100kHz single phase utility interactive inverter with FPGA based hardware controller

Suggested grid code modifications to ensure wide-scale adoption of photovoltaic energy in distributed power generation systems

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