Abstract
This paper presents not only a hardware-simulator development for hydraulic turbine generation systems (HTGS) in a district heating system (DHS) but also its control strategies and sequence. Generally, a DHS uses a differential pressure control valve (DPCV) to supply high-pressure–high-temperature fluids for customers depending on distance. However, long-term exposure of the DPCV to fluids increases the probability of cavitation and leads to heat loss in an event of cavitation. Therefore, a HTGS was introduced to solve this problem. It performs differential pressure control of the fluids, replaces the DPCV, and converts excess energy wasted by the DPCV to electrical energy. In this paper, the development of a hardware-simulator for HTGSs with a back-to-back converter, which uses two-level topologies, is proposed; moreover, control strategies and sequence used in this design are presented. The performance and validity of the proposed hardware-simulator and its control strategies are demonstrated by experimental results.
Highlights
The district heating system (DHS) is known to be efficient and reliable for heating and cooling buildings in densely populated cities, communities, and commercial facilities [1,2,3]
The proposed hardware-simulator consists of the generator-side inverter, the grid-side converter, a grid-simulator, the permanent magnet synchronous generator (PMSG) connected with an induction motor, and a power analyzer
The hydraulic turbine generation systems (HTGS) is used to solve the failure of differential pressure control valve (DPCV), such as cavitation, in DHS
Summary
The district heating system (DHS) is known to be efficient and reliable for heating and cooling buildings in densely populated cities, communities, and commercial facilities [1,2,3] In HTGS, electrical energy is generated by the PMSG, when high-pressure fluids rotate the hydraulic turbine This electrical energy can be transferred to the three-phase grid using the PCS [19,20,21,22]. Experimental results demonstrate the performance and validity of the proposed hardware-simulator and control strategies
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
