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Photovoltaic direct current side energy storage based power grid intelligent regulation and control system

A control system and DC side technology, applied in photovoltaic power generation, AC network circuits, AC network load balancing, etc., can solve the problems of increasing thermal power investment and energy waste, reduce thermal power ratio, improve power transmission and transformation efficiency, save The effect of energy domination

Pending Publication Date: 2016-09-07
南京威尔泰电气工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This greatly increases thermal power investment and energy waste

Method used

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  • Photovoltaic direct current side energy storage based power grid intelligent regulation and control system
  • Photovoltaic direct current side energy storage based power grid intelligent regulation and control system
  • Photovoltaic direct current side energy storage based power grid intelligent regulation and control system

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Embodiment Construction

[0035] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0036] Such as figure 1 As shown, a power grid intelligent control system based on photovoltaic DC side energy storage includes a regional backbone power grid, a grid dispatching control system connected to the regional backbone power grid, other power sources, and multiple photovoltaic power plants. The photovoltaic power plants include photovoltaic power generation unit, energy storage unit, power transmission unit, grid intelligent control subsystem, energy storage battery, charge and discharge control unit, bidirectional photovoltaic inverter, step-down transformer, power grid, grid intelligent control subsystem, the grid intelligent control subsystem It includes a centralized intelligent control subsystem and an energy deployment management system. The photovoltaic power generation unit, energy storage unit, power transmission unit, and grid a...

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Abstract

The invention discloses a photovoltaic direct current side energy storage based power grid intelligent regulation and control system. The power grid intelligent regulation and control system comprises a regional main power grid, and a power grid dispatching control system, other power supplies and multiple photovoltaic stations which are connected with the regional main power grid separately; each photovoltaic station comprises a photovoltaic power generation unit, an energy storage unit, a power transmission unit, a power grid intelligent regulation and control sub system, an energy storage battery, a charging-discharging control unit, a bidirectional photovoltaic inverter, a voltage boosting-bucking transformer, a power grid and a power grid intelligent regulation and control sub system; and the power grid intelligent regulation and control sub system comprises a concentrated intelligent regulation and control sub system and an energy deployment management system. The power grid intelligent regulation and control sub system comprises the concentrated intelligent control unit and the energy deployment management system; and the stored electric energy of each photovoltaic station can be fully deployed through information exchange with the power grid dispatching control system, so that the consumption capability of the power grid on the large-scale clean energy, and the safety and stability level of the power system are improved, the thermal power ratio is lowered, and the energy consumption is reduced.

Description

technical field [0001] The invention relates to an intelligent control system for a power grid, in particular to an intelligent control system for a power grid based on photovoltaic DC side energy storage, and belongs to the field of intelligent control systems for power grids with photovoltaic DC side energy storage. Background technique [0002] With the development of modern industry, the global energy crisis and air pollution problems are becoming more and more serious. The traditional fuel energy is decreasing day by day, and the harm to the environment is becoming more and more serious. At the same time, about 2 billion people in the world do not have normal energy supply. At this time, the whole world is turning its attention to renewable energy, hoping that renewable energy can change the energy structure of mankind and maintain long-term sustainable development. Clean energy has been greatly developed in recent years. The power structure has also undergone great ch...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/32H02J3/38
CPCH02J3/383H02J3/32Y02E70/30Y02E10/56
Inventor 何春涛刘长平夏应超崔立强
Owner 南京威尔泰电气工程有限公司
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