The invention relates to a wireless power transmission technology, in particular to a wide-range ZVS constant current/constant voltage bidirectional IPT system and a parameter design method thereof, a primary circuit of the system is provided with a primary converter, a primary compensation circuit and a primary coil, and a secondary circuit is provided with a secondary coil, a secondary compensation circuit, a secondary converter and a storage battery. The primary side converter is connected to a power grid and works in an inversion state according to a charging resonant frequency fc, the secondary side converter works in a rectification state, and energy is transmitted to the secondary side coil through the primary side coil so as to realize constant-current output wireless charging of the storage battery; when the storage battery is discharged, the secondary side converter works in an inversion state according to the discharging working frequency fd, the front end of the primary side converter is connected with an electric load and works in a rectification state, energy is transmitted to the primary side coil through the secondary side coil to achieve constant-voltage output wireless power supply for the electric load, and fd is larger than fc and smaller than lambda fc; lambda is a transition frequency coefficient, and # imgabs0 # k is a coupling coefficient between the primary side coil and the secondary side coil.
本发明涉及无线电能传输技术,具体为一种宽范围ZVS的恒流/恒压双向IPT系统及其参数设计方法,系统原边电路设置有原边变换器、原边补偿电路和原边线圈,副边电路设置有副边线圈、副边补偿电路、副边变换器和蓄电池,当蓄电池充电时,原边变换器接入电网,并按照充电谐振频率fc工作在逆变状态,副边变换器工作在整流状态,通过原边线圈向副边线圈传输能量实现对蓄电池恒流输出无线充电;当蓄电池放电时,副边变换器按照放电工作频率fd工作在逆变状态,原边变换器前端连接用电负载且工作在整流状态,通过副边线圈向原边线圈传输能量实现对用电负载恒压输出无线供电,其中:fc<fd<λfc,λ为过渡频率系数且#imgabs0#k为原边线圈和副边线圈之间的耦合系数。
Constant-current/constant-voltage bidirectional IPT system of wide-range ZVS and parameter design method of constant-current/constant-voltage bidirectional IPT system
宽范围ZVS的恒流/恒压双向IPT系统及其参数设计方法
2024-03-29
Patent
Elektronische Ressource
Chinesisch
IPC: | H02J CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER , Schaltungsanordnungen oder Systeme für die Abgabe oder Verteilung elektrischer Leistung / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen / G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / G06Q Datenverarbeitungssysteme oder -verfahren, besonders angepasst an verwaltungstechnische, geschäftliche, finanzielle oder betriebswirtschaftliche Zwecke, sowie an geschäftsbezogene Überwachungs- oder Voraussagezwecke , DATA PROCESSING SYSTEMS OR METHODS, SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL, SUPERVISORY OR FORECASTING PURPOSES / 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 |
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