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Demand side management system and method of high-permeability intermittent new energy access distribution network

A demand-side management and high-penetration technology, which is applied in the field of demand-side management systems where high-penetration intermittent new energy is connected to the distribution network, and can solve problems such as the inability to cope with high-penetration intermittent new energy short-term fluctuations, etc. Achieve the effect of enhancing the local absorption capacity, preventing the secondary power mutation, and simplifying the communication network

Active Publication Date: 2017-12-29
SHANGHAI JIAO TONG UNIV +3
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Problems solved by technology

The existing demand side management research mainly has two directions. One is direct load control for the purpose of balancing real-time power fluctuations of the power grid. However, this control method is only theoretically feasible, and the actual load cannot accept such high-frequency control; the other One is to arrange long-term demand-side power consumption based on forecast information, which can complete long-term consumption tasks, but cannot cope with short-term fluctuations of high-permeability intermittent new energy

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  • Demand side management system and method of high-permeability intermittent new energy access distribution network

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Embodiment Construction

[0026] Such as figure 1 A high-penetration intermittent new energy access demand side management system is shown in the distribution network. The distribution network includes intermittent new energy and load equipment. The load equipment is divided into multiple load groups according to the topology. Each Each load group is respectively provided with a load group control system; the demand side management system adopts a layered control architecture, including a demand side decision-making system at the upper level, and a load group control system corresponding to the load group at the lower level;

[0027] The demand-side decision-making system performs load forecasting and power generation forecasting based on the historical data of the distribution network, generates power consumption plans, and performs primary demand-side management, which completes intermittent new energy consumption on a long-term scale, enabling new The trend of the energy output curve and the load cu...

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Abstract

The invention discloses a demand side management system of a high-permeability intermittent new energy access distribution network. The distribution network includes intermittent new energy and load groups. The demand side management system adopts a hierarchical control architecture, and includes an upper demand side decision system and a lower load group control system. By adopting the hierarchical control architecture, dividing loads into a plurality of load groups and setting the decision system and the group control system, the communication network is simplified, and the system scalability is enhanced. On one hand, the computational complexity of the upper decision system is simplified, and the response speed is increased. On the other hand, the lower group control system can be closely linked with specific load equipment, can analyze the load characteristics and carry out generalized battery equivalence, and does not damage the use characteristics of loads while controlling loads.

Description

technical field [0001] The invention relates to the technical field of intelligent distribution network, in particular to a demand-side management system and method for high-permeability intermittent new energy access to distribution network. Background technique [0002] With the vigorous development of new energy technologies, large-scale renewable energy is connected to the grid, and these renewable energy are often intermittent, typically photovoltaic and wind power. The intermittency of new energy sources brings new challenges to power grid dispatching, such as power reverse, voltage over-limit, and large power fluctuations. With the rise of the smart grid and the development of communication technology, the information channel between the demand side and the grid side increases rapidly, and it becomes feasible to realize the on-site consumption of intermittent energy through demand-side management, and the demand-side management technology can effectively improve Dist...

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Application Information

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IPC IPC(8): H02J3/46
CPCH02J3/46
Inventor 潘世雄黄玉辉汤同锋李海涛刘东
Owner SHANGHAI JIAO TONG UNIV
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