Applicability of conservation voltage reduction to distribution networks with photovoltaic generation considering various load characteristics

Masuta, Taisuke; Asano, Shota; Việt, Nguyễn Hoàng

doi:10.1109/iciinfs.2017.8300333

Cited by 8 publications

(2 citation statements)

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“…From Equations (1), (2), and (15), it observed that the load of the system is voltage dependent. Therefore, to reduce the network's substation demand, the system's voltage is reduced by handling OLTC/VR tap positions.…”

Section: Pv Inverter Loss Modelingmentioning

confidence: 99%

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Substation demand reduction by CVR enabled intelligent PV inverter control functions in distribution systems

Arora

Satsangi²,

Kaur

et al. 2020

Int Trans Electr Energ Syst

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Summary This article proposes a combined scheme to reduce the substation demand with conservation voltage reduction (CVR) alongside intelligent photovoltaic (PV) inverter control functions. CVR maintains the power delivered to the customers in lower service voltage range (120‐114)V by not influencing electric devices' performance at the consumer premises. Since most of the loads are voltage‐dependent at the consumer side, proper voltage control can obtain substantial demand reduction and energy savings. In the proposed work, CVR is applied to both medium‐sized (IEEE‐123 node test feeder) and large‐sized (IEEE‐8500 node test feeder) unbalanced distribution feeders without PV and with intelligent PV inverter. In addition, the transient nature of PV output power is also examined during the movement of the clouds. The smart PV inverter utilizes various control functions (Volt‐VAr, Volt‐VAr [hysteresis], Volt‐Watt, and combi mode) to control the system's active and reactive power. Results reveal that operating CVR with intelligent PV inverter in the hysteresis Volt‐VAr mode helps achieve higher substation demand reduction than with only CVR operation. This combination reduces system losses and contributes to energy savings when better voltage regulation is provided. It also helps in maintaining the reliability and efficiency of the distribution network.

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Section: Pv Inverter Loss Modelingmentioning

confidence: 99%

“…LV violation has diminished during the lower voltage reduction range. Voltage reduction for PV generation purely depends on the type of load observed on a Japanese‐based distribution network 15 . A rise in voltage issue mitigated using PV inverter‐based VVC in combination with CVR 16 .…”

Section: Introductionmentioning

confidence: 99%