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Power system power stability optimization method

A power system and power stability technology, applied in the field of power systems, can solve problems such as voltage and power shortages, achieve voltage stability, optimize output and load configuration, and suppress voltage fluctuations

Inactive Publication Date: 2018-05-29
张爱国
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The smart home system includes grid power supply, wind power generation devices, photovoltaic power generation devices, energy storage systems, user loads, etc. User loads may include charging and discharging equipment such as electric vehicles, air conditioning equipment, lighting equipment, etc. A large number of loads that go online for a short time may cause voltage and shortage of power

Method used

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  • Power system power stability optimization method

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Embodiment Construction

[0042] Write a combination Figure 1-3 A power system power stability optimization method of the present invention is described. The present invention is applied to a smart home power system, wherein the smart home power system includes a grid power supply, a wind power generation device, a photovoltaic power generation device, an energy storage system, and user loads. The specific steps are:

[0043] (1) Collect power system parameters, including the current and voltage collected by current sensors and voltage sensors at each collection point, and determine the location and type of the fault.

[0044] (2) Judging whether there is a voltage sag, that is, judging whether the grid power supply fails, or a load surge occurs so that the grid voltage sags; if it is judged that a voltage sag occurs, then go to step (3), otherwise, go to step (6) ).

[0045] (3) Determine whether the transformer can perform on-load voltage regulation; if on-load voltage regulation is feasible, go t...

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Abstract

The invention provides a power system power stability optimization method which is applied to a smart home power system. The smart home power system comprises a power grid power supply, a wind power generation device, a photovoltaic power generation device, an energy storage system, a user load and the like. The method comprises the steps that whether voltage sag occurs is determined; whether a transformer can carry out on-load voltage regulation is determined; whether power sag occurs is determined; a voltage stability optimization algorithm is carried out; based on an established voltage stability optimization model and constraints and based on wind energy and solar energy forecast and load fluctuations, power scheduling and load distribution of the power system are optimized. Voltage fluctuations can be effectively suppressed. Voltage stability is maintained, and at the same time the output and load configuration of the system are optimized.

Description

technical field [0001] The invention relates to a power system power stability optimization method, which belongs to the field of power systems. Background technique [0002] Smart home is based on the residence as a platform, using integrated wiring technology, network communication technology, and system design to integrate home life-related facilities, build an efficient management system for residential facilities and family schedules, improve home security, convenience, and realize Environment-friendly and energy-saving living environment. Compared with ordinary homes, smart homes not only have traditional living functions, but also provide an efficient, comfortable, safe, convenient, and environmentally friendly living environment that integrates construction, network communication, and management, and also provide a full range of information interaction functions. [0003] With the development of smart grid and renewable energy, smart home power optimization control ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/24H02J3/38H02J3/46
CPCH02J3/24H02J3/383H02J3/386H02J3/46Y02B10/10Y02E10/56Y02E10/76
Inventor 张爱国
Owner 张爱国