The invention provides a solid-state transformer and a bus voltage balancing method thereof. The solid-state transformer can comprise a plurality of cascade modules (M1-Mn) and bus voltage balancing modules (10, 20a, 20n, 30a and 30n). Wherein the input ends of the cascade modules are connected in series, the output ends of the cascade modules are connected in parallel to serve as the parallel output end of the solid-state transformer, and the bus voltage balancing module is connected to the parallel output end of the solid-state transformer in parallel. Each cascade module can comprise bus capacitors (c1-c4, 1, n), the bus voltage balancing module can balance the bus voltage of each cascade module by consuming part of energy of the bus capacitors in each cascade module, the cost is low, and the applicability is high.
提供一种固态变压器及其母线电压均衡方法,该固态变压器可包括多个级联模块(M1‑Mn)以及母线电压均衡模块(10,20a,20n,30a,30n)。其中,各级联模块的输入端串联,各级联模块的输出端并联作为固态变压器的并联输出端,母线电压均衡模块并联于固态变压器的并联输出端。各级联模块中可包括母线电容(c1‑c4,1,n),该母线电压均衡模块可通过消耗各级联模块中母线电容的部分能量来均衡各级联模块的母线电压,成本低,适用性强。
Solid-state transformer and bus voltage balancing method thereof
固态变压器及其母线电压均衡方法
17.06.2022
Patent
Elektronische Ressource
Chinesisch
IPC: | H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS , Anlagen zur Umformung von Wechselstrom in Wechselstrom, von Wechselstrom in Gleichstrom oder umgekehrt, oder von Gleichstrom in Gleichstrom und zur Verwendung in Netzen oder ähnlichen Stromversorgungssystemen / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung |
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