External physical controller for frequency conversion simulation on adaptive power system real-time simulation platform

Abstract

The invention discloses an external physical controller for frequency conversion simulation of a self-adaptive power system real-time simulation platform. The external physical controller comprises computing units which are interconnected, a synchronous clock signal unit and an interface unit; the interface unit comprises a digital input interface unit, a digital output interface unit, an analog input interface unit and an analog output interface unit; the synchronous clock signal unit is provided with an interface which is used to connect with an external power system real-time simulation platform, clock signals which are used to accept synchronous clock signals output by the power system real-time simulation platform and provide various frequencies for the interface unit and signal computing units according to the received synchronous clock signals; the computing unit is used to generate control signals according to the received inputs and a preset control algorithm; the external physical controller for frequency conversion simulation of the self-adaptive power system real-time simulation platform solves the problem that in the power system real-time simulation platform, the existing controller cannot work correctly when the hybrid simulation is implemented.

Description

technical field [0001] The invention belongs to the technical field of power system control, and more specifically relates to an external physical controller for frequency conversion simulation of an adaptive power system real-time simulation platform. Background technique [0002] Power system real-time simulation refers to the simulation process whose simulation time scale is exactly the same as that of the actual power system operation. Since the 1990s, power system real-time simulation technology has developed rapidly and has been gradually popularized and applied. At present, the most widely used power system real-time simulation systems in my country are RTDS (developed in Canada) and ADPSS (developed by China Electric Power Research Institute). The power system real-time simulation system can be connected to the external physical device through the corresponding physical interface, and the digital-analog hybrid closed-loop simulation experiment can be completed by wo...

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Problems solved by technology

[0004] Aiming at the above defects or improvement needs of the prior art, the present invention provides an external physical controller for frequency conversion simulation of an adaptive power system real-time simulation platform. When performing digital-analog hybrid closed-loop simulation with different operating frequencies, the existing external physical controller and power system real-time simulation system cannot work together due to timing inconsistencies

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