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Optimal planning method for power quality compensator installation location and capacity

A technology for optimizing installation location and capacity, applied to circuit devices, electrical components, AC network circuits, etc., to achieve the effect of ensuring high efficiency

Active Publication Date: 2019-11-15
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, domestic and foreign studies on the influence of microgrid structure on power quality mostly focus on the power quality characteristics of micropower sources, but do not include the power quality regulation system in microgrid into the microgrid structure for research.

Method used

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  • Optimal planning method for power quality compensator installation location and capacity
  • Optimal planning method for power quality compensator installation location and capacity
  • Optimal planning method for power quality compensator installation location and capacity

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Embodiment approach

[0023] Such as figure 1 As shown, an embodiment of the present invention includes a multi-inverter microgrid system, and the microgrid system includes a diesel generator set, an energy storage system, a wind power generation system, a photovoltaic power generation system, an inverter, and a transformer; the diesel generator set , energy storage system, wind power generation system, and photovoltaic power generation system are connected to the microgrid bus through the inverter; the transformer connects the microgrid buses of different voltage levels; the end of the microgrid bus is connected to a load, and the bus 14 is connected Power grid; the power quality compensator is connected to the AC bus; the power quality compensator includes a DC energy storage capacitor, a converter, an LC filter circuit, a sampling conditioning circuit, a phase-locked loop circuit, a controller, and an IGBT drive protection circuit, The DC energy storage capacitor, converter, and LC filter circui...

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Abstract

The invention discloses an installation position and capacity optimization planning method of an electric energy quality compensator. The optimal installation position of the compensator under the condition that the capacity is deterred can be calculated by Newton-Raphson algorithm-based particle swan optimization according to harmonic and a reactive power parameter of each node in a microgrid, meanwhile, the characteristic of discretely-distributed capacity of the compensator is considered, the optimal compensation capacity of the compensator is obtained by a cutting plane method, and thus, the economic running of the microgrid can be achieved by the obtained installation position and the capacity of the compensator.

Description

technical field [0001] The invention relates to the technical field of the installation position and capacity of a power quality compensator during power generation and operation of a new energy microgrid, in particular to a method for optimizing the installation position and capacity planning of a power quality compensator. Background technique [0002] The microgrid integrates a variety of energy inputs (solar energy, wind energy, conventional fossil fuels, biomass energy, etc.), characteristic compliance, and energy conversion units (fuel cells, micro gas turbines, internal combustion engines, energy storage systems, etc.), which are chemical, thermodynamic, electric A nonlinear complex system with coupled behaviors such as mechanics. At present, domestic and foreign studies on the influence of microgrid structure on power quality mostly focus on the power quality characteristics of micropower sources, but do not include the power quality regulation system in microgrid in...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 罗安姜劲松陈燕东伍文华谢志为谭文娟刘傲洋王伊欧素妤张兵
Owner HUNAN UNIV