Method for monitoring intelligent distributed wind generator system with adjustable voltage and power

Abstract

The invention discloses a method for monitoring an intelligent distributed wind power generation system with adjustable voltage and power. The method includes the following steps: S1. a wind generation device monitoring module real-time acquiring operation data of a wind generation device, storing the data, and real-time acquiring demand for load power within the wind power generation system; conducting first-order filtering on an active power PWO that is sent by the wind generation device and outputting an expected active power PWf of the wind generation device; S2. acquiring voltage information at grid-connected points, at the same time based on a scheduling instruction of a large power grid, determining demand for an active or reactive power output of the wind power generation system; real-time detecting and acquiring a SOC of a battery module; S3. processing the acquired information about the wind generation device, a power grid and batteries to obtain an expected output power reference quantity PEss=[delta] P1+[delta]PB of an energy storage system, wherein the [delta] P1 is a difference value between PWO and PWf, setting a discharge zone of the energy storage system, and establishing a SOC layered control strategy; S4. with the demand for active and reactive power output, the current SOC layered control strategy, the current demand for the load power within the wind generation system, and the fact that the wind generation device may output an active and reactive power as restraining conditions, implementing optimized operation of the wind generation system.

Description

Technical field [0001] The invention relates to a monitoring method of an intelligent distributed wind power generation system with adjustable voltage and power. Background technique [0002] The energy and environmental crisis has become an important issue affecting the sustainable development of human beings, and the utilization of clean and renewable energy is the fundamental way to solve this problem. With the maturity of wind power generation, photovoltaic power generation, wave power generation and other renewable energy power generation technologies, more and more renewable energy power generation systems are connected to the power grid in a distributed manner to meet people's daily production and living electricity needs. [0003] The power generation system based on wind power and photovoltaic power generation, as a supplement to the ultra-high voltage, long-distance, and large grid power supply mode, represents a new development direction of the power system. Ther...

AI Technical Summary

Problems solved by technology

From the above analysis, it can be seen that in the existing wind power generation grid-connected configuration system, the utilization of wind energy can only take a small section in the middle. The waste, more importantly, wind turbines are frequently cut in and out of the power grid, which has a great impact on the power grid

This wind power grid-connected mode cannot realize continuous power transmission to the grid, and can only transmit power to the grid in a certain wind range

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