Power Hardware-In-the-Loop Approach for Autonomous Power Generation System Analysis

Abstract

The article presents the Power Hardware-In-the-Loop (PHIL) dynamic model of a synchronous generator of 125 kVA for autonomous power generation system analysis. This type of system is typically composed of electrical energy sources in the form of several diesel generator units with synchronous machines, the main distribution switchboard and different loads. In modern power distribution systems, the proposed power management strategies are typically aimed at the minimization of fuel consumption by maintaining the operation of diesel generator units at peak efficiency. In order to design and test such a system in conditions as close as possible to the real operating conditions, without constructing an actual power distribution system, a PHIL model in the form of a power inverter that emulates the behaviour of a real synchronous generator is proposed. The PHIL model was prepared in the MATLAB/Simulink environment, compiled to the C language and fed into a 150 kVA bidirectional DC/AC commercial-grade converter driven by a HIL real-time simulation control unit. Experimental research was performed in the LINTE2 laboratory of the Gdańsk University of Technology (Poland), where the PHIL emulator was developed. The proposed model was validated by comparing the output voltages and currents as well as an excitation current with the measurements performed on the 125 kVA synchronous generator. The obtained results proved satisfactory compliance of the PHIL model with its real counterpart.

Implementing Power System Protection Algorithms in a Digital Hardware-in-the-Loop Substation

“…In general, HIL systems contain a real-time simulation that acts as a plant or system. A subset of HIL is Power Hardware-In-the-Loop (PHIL) simulations [3], which are characterized by using physical hardware circuits to simplify simulation or provide more accurate results in lieu of using full system simulators [4], [5], [6], [7]. Since the motivation of this paper is to implement an algorithm, it is more helpful to consider HIL systems, not PHIL, and especially those using commercially available hardware.…”

Average Model of Switched-Energy-Tank Battery Equalizer for Accelerated Performance Assessment

“…Therefore, a long execution time is needed to complete the hours of the equalizing process [42]. In addition, large computation and memory resources are required to process the simulated data [43][44][45]. Therefore, exact switching simulations in the most popular circuit simulators such as PSIM, Plecs, or MATLAB are not so effective in assessing a long-term battery equalizing process [46][47][48].…”

Development of an emulation platform for synchronous machine power generation system using a nonlinear functional level model

“…The objective of the research was to develop a frequency converter (FC) based platform capable of emulating an autonomous power generation system. Unlike in nationwide power systems, where redundancy can ensure a reliable electrical energy supply [1], autonomous power generation systems are often the only solution for electric power supply in remote areas and are the only solution for onboard ships and airplane power delivery [1][2][3][4]. To maintain a high level of safety and reliability, tools that would allow real-time diagnosis need to be developed [5,6].…”