Nodal Pricing Method of Active Distribution System Considering Additional Reinforcement Cost Driven by Voltage Constraint

doi:10.3969/j.issn.1000－7229.2017.10.017

Abstract

Abstract: ABSTRACT： The characteristic of multi-power supply of active distribution system contributes to relieving unused capacity of network components, improving voltage level and deferring network future investment. With the participating of distributed generation in distribution system, this paper proposes a novel nodal pricing method for active distribution network considering additional reinforcement cost driven by voltage constraint. The proposed approach quantifies the influence of power flow change caused by distribution generation to reflect capacity cost and investment driven by voltage constraint, and then solves and revises the investment years of the components in bidirectional flow. On this basis, nodal price is calculated based on long-run incremental cost method, which reflects network unused capacity and unused voltage in some extent. The results of IEEE 33-nodes system show that proposed nodal pricing method can reflect the contribution level of each node to active network capacity and voltage constraint margin, as well as guide rational power consumption and grid planning.

Key words: active distribution system, nodal pricing, voltage constraint, distributed generation.

CLC Number:

TM 744

FAN Xuanran,YUAN Yue, YUAN Ruimeng, LING Kaiyuan, JI Guanglong. Nodal Pricing Method of Active Distribution System Considering Additional Reinforcement Cost Driven by Voltage Constraint [J]. Electric Power Construction, 2017, 38(10): 123-.

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