Online real-time monitoring method for primary frequency modulation capability of new energy field station

Abstract

The invention discloses an online real-time monitoring method for the primary frequency modulation capability of a new energy station. The method comprises the steps that: the dynamic data of the newenergy station are collected; test signal exchange is carried out among a power grid dispatching main station system, a new energy field station and a new energy field station primary frequency modulation control system; the power grid dispatching main station system remotely tests the new energy field station, evaluates the primary frequency modulation capability of the new energy field station in real time and monitors primary frequency modulation characteristic parameters; and the power grid dispatching master station system remotely calls and processes the primary frequency modulation action file of the new energy field station, and quantitatively evaluates the primary frequency modulation performance indexes of the new energy field station in different time periods. The primary frequency modulation performance indexes of the new energy field station can be quantitatively assessed, the primary frequency modulation characteristic function parameter setting of the new energy field station is remotely monitored from the power grid dispatching master station system, conditions are created for a power grid dispatching institution to strengthen supervision and management of the primary frequency modulation of a new energy generator set, and the safe operation level of a power grid can be effectively improved.

Description

technical field [0001] The invention belongs to the technical field of new energy power generation, and in particular relates to an online real-time monitoring method for the primary frequency modulation capability of a new energy station. Background technique [0002] In recent years, new energy power generation technology has developed rapidly. With the increase of new energy penetration rate, the space of conventional water and thermal power units with moment of inertia has been continuously occupied. The power structure has undergone major changes, and the available primary frequency modulation response resources of the power grid have gradually decreased. ; At the same time, when the new energy reaches the maximum power generation output, the thermal power units of the whole network are in deep peak-shaving operation, unable to provide the next frequency regulation capability, and the structural dilemma of the frequency control characteristics of the power grid is becomi...

AI Technical Summary

Problems solved by technology

A frequency modulation performance test of a new energy station generally selects some specific steady-state conditions to simulate the grid-connected point frequency on the station side to conduct a frequency difference disturbance test, and make a judgment based on the test results, but due to the randomness and volatility of new energy power generation Due to its characteristics, its primary frequency modulation capability is always affected. It is difficult to accurately and real-time evaluate the primary frequency modulation dynamic performance of new energy stations only by relying on the simulated frequency difference at the station side for a frequency modulation dynamic test.

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