期刊
IEEE TRANSACTIONS ON POWER SYSTEMS
卷 36, 期 3, 页码 2103-2113出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPWRS.2020.3035465
关键词
Load modeling; Optimization; Voltage control; Computational modeling; Energy consumption; Reactive power; Data models; Volt-var optimization; load model; electricity market
资金
- CLP Power, Hong Kong
This study proposes a market-based volt-var optimization model, aiming to achieve maximum cost savings by combining optimal voltage regulation strategies and electricity purchase strategies. Case studies show that coordinating voltage regulation methods with market behaviors can help utilities achieve a higher level of cost savings.
Due to the visibility and controllability features of the latest distribution networks, there are potentials to model customer loads through a component-based approach more accurately. The electricity markets started in recent years enable trading and exchanges of electricity among traditional power stations and prosumers. It provides a possibility to improve the optimality of classical volt-var optimization (VVO) schemes. In this paper, a tri-level bottom-up load model and a market-based volt-var optimization (mVVO) model are proposed. The energy-to-voltage (ETV) parameter is proposed in our load model as a substitute for the widely used load-to-voltage (LTV) parameter to reflect long-term load characteristics. The mVVO model using ETV parameters aims to combine the optimal voltage regulation strategies and electricity purchase strategies from wholesale and retail markets for maximum cost saving. The case studies based on real load data of Hong Kong show that by coordinating the voltage regulation methods with market behaviors, utilities can reach a higher level of cost saving, in addition to energy saving.
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