Abstract
In China, photovoltaic poverty alleviation projects play important role in promoting social and economic development in poverty-stricken areas. They can help stabilizing and increasing incomes of the poor. However, poverty alleviation photovoltaics are mainly connected to the rural distribution network in large numbers, which have a greater impact on the safe and stable operation of the distribution network, making the rural distribution network difficult to solve the problem of collecting and consuming distributed photovoltaic energies on-site. Meanwhile, photovoltaic poverty alleviation projects mainly rely on subsidies from the government and power grids, and the prosumer marketing methods are inadequate. In this paper, an effective on-site consumption technology for photovoltaic power generation linked to agricultural load for poverty alleviation is discussed, together with new energy management and planning technologies for stable two-way energy flow between photovoltaic power generation and rural distribution networks, which can increase the photovoltaic power supply radius, and deal with load fluctuations, and perform precise reactive power control of agricultural load. Furthermore, a prosumer marketing that can simultaneously create maximum economic benefits for power grid and poverty alleviation targets is proposed. The detailed economic benefits are calculated for a demonstration project in Funan county, Anhui province, China.
Highlights
Photovoltaic poverty alleviation project as one of the important method of targeted poverty alleviation, has been promoted and constructed nationwide in China
In the context of the forward and backward correlation effects of rural power grid investment, we propose different types and scales of photovoltaic poverty alleviation project construction and operation mechanisms and analyze the investment and profit models of multiple participants under different technologies and prosumer marketing methods
This paper focuses on the on-site consumption of agricultural load for poverty alleviation photovoltaic power generation
Summary
Photovoltaic poverty alleviation project as one of the important method of targeted poverty alleviation, has been promoted and constructed nationwide in China. Energy storage methods in multiple forms, low costs and matching intrinsic characteristics of distributed power sources can effectively improve the on-site photovoltaic consumption capacity of rural power grids. It is necessary to predict accurately a large number of distributed photovoltaic power generation and residential loads to minimize the impact of large-scale distributed photovoltaic access on the distribution network It is a challenge for the operation, maintenance, and overhaul of a large number of distributed photovoltaics in a long-time period. Stable two-way energy flow between photovoltaic power generation and rural distribution network as a new energy management and planning technology is described, which can increase the power supply radius, coordinate with load fluctuations, and perform precise reactive power control of agricultural load. Working principles for the five research parts are described in detail in the following
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