A Medium Voltage Testbed for the Performance and Function Tests of a 13.8 kV Power Conditioning System Converter

Li, Haiguo; Gao, Zihan; Yang, Zhe; Nie, Cheng; Wang, Fred; Kao, Min H.

doi:10.1109/apec43599.2022.9773522

Cited by 6 publications

(3 citation statements)

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“…A MV test platform is designed and developed for the grid function tests, as shown in Fig. 26 [32]. A LV three-phase twolevel converter is connected in parallel with the MV PCS converter at both the LV dc side and the MV ac side (with stepup transformers).…”

Section: E Grid Function Testsmentioning

confidence: 99%

“…With the testbed, the Var (voltage) support, frequency ride through, low voltage ride through, high voltage ride through, ac overvoltage and Undervoltage protection, and over frequency and under frequency protection in the grid-connected mode, and the balanced and unbalanced load support in the islanded mode are all tested [32].…”

Section: E Grid Function Testsmentioning

confidence: 99%

“…Many issues, challenges and improvement needs have been identified for components designed and approaches adopted for HV SiC-based converters because of the high voltage and high dv/dt of these HV SiC devices. These include: the gate drive and protection design considering the high dv/dt [21][22][23]; isolated gate drive power supply (GDPS) design considering the high insulation and low coupling capacitance requirements [24][25][26]; electric field management to realize high and reliable insulation [27]; the impact of parasitic capacitances on the device DPT-based dynamic characterization [28] and on the converter loss [29,30]; sensor design considering the high dv/dt noise [31]; the MV converter testing approach [32]; and the insulation considerations [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Design, Development, and Testing of a Flexible Combined Heat and Power (F-CHP) System With 10-kV SiC MOSFET-Based Power Conditioning System (PCS) Converter

Li,

Gao,

Wang

et al. 2023

IEEE Access

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This paper discusses the design, development, and testing of a flexible combined heat and power (F-CHP) system. It includes two parts: the power conditioning system (PCS) converter, which connects the system to the grid and is the key component to provide grid support services, and the F-CHP central controller, which accommodates the control of local sources, local loads, and the PCS converter. The functions and structures of the central controller are discussed. The central controller's system-level performances are verified with hardware-in-the-loop (HIL) tests, and the mode transition and grid transient performances are validated with power electronic converter-based hardware testbed (HTB) tests. The PCS converter is designed with 10 kV SiC MOSFETs. The grid requirements are considered in the 13.8 kV/1 MW PCS converter design, and the impact of different requirements on the converter design is identified. Also, converter scalability is studied with the paralleling operation. Two 13.8 kV/100 kW converter prototypes are developed to verify the converter design and scalability. The second prototype is an improved design of the first one; the volume is reduced by 49% and the efficiency at the rated output power is increased from 96.4% to 98.4%. The test results of the converter performances, grid support functions, and parallel operation are also discussed.INDEX TERMS 10 kV SiC MOSFET, Flexible Combined Heat and Power (F-CHP) System, grid support, grid requirements, medium voltage converter, power conditioning system (PCS).

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Section: E Grid Function Testsmentioning

confidence: 99%

Section: E Grid Function Testsmentioning

confidence: 99%