Micro-grid coordination control device based on particle swarm self-optimization PID droop control

A technology of coordinated control and self-optimization, applied in circuit devices, DC network circuit devices, AC network voltage adjustment, etc. Balance and other issues, to achieve the effect of fast response, simple algorithm, small fluctuation of amplitude and frequency

Active Publication Date: 2020-10-16
ZHENGZHOU ELECTRIC POWER COLLEGE +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A microgrid composed of distributed power sources such as wind power (WT), photovoltaic (PV), fuel cell (FC), and storage battery (Bat). When the microgrid operates in an isolated island, climate and environmental changes will easily cause fluctuations in wind power and photovoltaic power generation. Causes power imbalance between microgrid power generation and electricity consumption, resulting in deviation of microgrid voltage and frequency beyond the safe operating range

Method used

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  • Micro-grid coordination control device based on particle swarm self-optimization PID droop control
  • Micro-grid coordination control device based on particle swarm self-optimization PID droop control
  • Micro-grid coordination control device based on particle swarm self-optimization PID droop control

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Embodiment

[0028] Such as figure 1 As shown, the microgrid described in the present invention is a distributed power supply system consisting of four major distributed power systems: wind power generation system, photovoltaic power generation system, fuel cell system and storage battery system, as well as a variety of power consumption of electric heating load, electric cooling load and common electric load. A low-voltage microgrid system composed of loads.

[0029] The coordinated control between distributed power sources mainly relies on the distributed power source coordinated controller, adopts PSO self-optimizing PID droop control and constant power PQ control, and realizes by driving the DC / AC converters of each distributed power source. Each distributed power supply automatically switches between the master and slave power supplies, which can effectively stabilize the fluctuation of the voltage and frequency of the microgrid. It can be widely used in the control of independent mic...

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Abstract

The invention discloses a micro-grid coordination control device based on particle swarm self-optimization PID droop control. The device comprises a photovoltaic power generation droop control selection module, a wind power generation droop control selection module, a storage battery droop control selection module, a fuel cell droop control selection module, a photovoltaic power generation PSO self-optimizing PID droop control module, a photovoltaic power generation constant power control module, a wind power generation PSO self-optimization PID droop control module, a wind power generation constant power control module, a storage battery PSO self-optimization PID droop control module, a fuel cell PSO self-optimization PID droop control module and a storage battery charging control module.Each PSO self-optimizing PID droop control module internally comprises a frequency PID droop controller and a voltage PID droop controller. The micro-grid coordination control device realizes automatic conversion of each distributed power supply as a master power supply and a slave power supply, and effectively stabilizes voltage and frequency fluctuation of the micro-grid.

Description

technical field [0001] The invention belongs to the technical field of micro-grid control, and in particular relates to a micro-grid coordination control device based on particle swarm self-optimization PID droop control. Background technique [0002] The independent microgrid can reduce the power supply pressure of the distribution network and improve the acceptance capacity of the power grid. It has been promoted and constructed in mining areas, grasslands, islands and other regions. A microgrid composed of distributed power sources such as wind power (WT), photovoltaic (PV), fuel cell (FC), and storage battery (Bat). When the microgrid operates in an isolated island, climate and environmental changes will easily cause fluctuations in wind power and photovoltaic power generation. This results in a power imbalance between microgrid power generation and electricity consumption, causing the microgrid voltage and frequency to deviate beyond the safe operating range. Therefore...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/38H02J3/46H02J3/24H02J3/14H02M7/48
CPCH02J3/388H02J3/381H02J3/46H02J3/466H02J3/24H02J3/241H02J3/144H02M7/48H02J2203/10H02J2203/20H02J2300/24H02J2300/28H02J2300/30H02J2300/40Y02E10/56Y02E10/76Y04S20/222Y02B70/3225
Inventor 雷莱彭博王福忠郭江震李润宇
Owner ZHENGZHOU ELECTRIC POWER COLLEGE
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