This paper proposes an intelligent modeling and optimization method to set up the smart energy hub model for multiple system optimize operation of its associated automatically. The core idea proposed is divide complex into several simple models. In this paper, computerized algorithm, which applied division, includes loop searching method, a real nodes arrangement virtual insertion method. One case study residential district in Guangzhou city performed validate effectiveness Compared with...

Common-mode (CM) voltage and related conducted CM electromagnetic interference (EMI) can cause ground leakage current, motor bearing failures, audio susceptibility issues in pulsewidth-modulated (PWM) voltage-source inverter (VSI) drive applications. When using wide-bandgap (WBG) devices to build inverters operating at higher switching frequencies, the problems caused by a VSI's EMI become more serious. As an alternative, current-source (CSI) delivers sinusoidal output waveforms its dc-link...

Integrated motor drives (IMDs) can deliver substantial economic benefits by replacing low-efficiency fixed-speed motors with compact adjustable-speed that combine the power electronics and into same physical structure. IMDs are currently implemented using voltage-source inverters since this topology is naturally compatible conventional silicon-based devices. However, major advances in development of new types semiconductor switches made from wide-bandgap (WBG) materials such as silicon...

Pulse-width-modulated (PWM) current-source inverters (CSIs) in machine drives have received limited research attention since the 1980s because they are generally considered to be inferior PWM voltage-source (VSIs) terms of several performance metrics. However, view special features wide-bandgap (WBG) power semiconductors that distinguish them from today's silicon devices, this paper uses simulation reexamine PWM-CSI's key metrics including efficiency, electromagnetic interference (EMI), and...

Four-quadrant (FQ) switches that have both bidirectional current and reverse-voltage blocking (RVB) capabilities are appealing candidates for use in current-source inverters (CSI) to significantly reduce the switch conduction losses. However, FQ characteristics of these can create problems during switching events by causing transient overcurrent pulses damage inverter. Commutation methods CSI topologies address challenges presented this article. Several key aspects performance implementation...

The adoption of wide bandgap (WBG) devices in power converters creates challenging conducted common-mode (CM) electromagnetic interference (EMI) issues due to their fast-switching transients and high switching frequencies. This article focused on the analysis suppression CM EMI for WBG-enabled three-phase current-source (CSCs) consisting back-to-back rectifier inverter stages, which have received little attention literature. baseline time-domain waveforms CSC been experimentally...

Conventional current-source inverters (CSIs) using silicon-based reverse-blocking (RB) switches typically suffer from high conduction loss, low switching frequency, and bulky size. New bidirectional (BD) (also called four-quadrant switches) built wide bandgap semiconductor materials such as gallium nitride silicon carbide offer both reverse-voltage-blocking capability loss that make them appealing candidates for increasing the CSIs efficiency. This article proposes a new modulation scheme an...

Integrated motor drives (IMDs) can provide high power density, simplified installation, and easier retrofits for fixed-speed motors with adjustable speed (ASDs) in pump/fan applications. This paper proposes a new IMD based on current-source inverter (CSI) topology that offers several performance improvements over existing configurations. Attention is focused development of suitable electronics modules have reverse-voltage-blocking (RB) switching frequency capabilities. Several candidate...

Reverse-voltage-blocking (RB) and bidirectional (BD) power switches using wide bandgap (WBG) semiconductor materials enable new converter designs. Due to the dominance of voltage-source inverters (VSIs) that are only required block forward voltage, limited research has been devoted development RB BD either monolithic or discrete devices. In this paper, detailed characterization results for three prototype hybrid RB/BD have built silicon-carbide (SiC) devices presented. The dynamic voltage...

Monolithic four-quadrant (FQ) switches that have both bidirectional current and reverse-voltage blocking (RVB) capabilities are appealing candidates for use in current-source inverters (CSI) order to significantly reduce the switch conduction losses. However, FQ characteristics of these present challenges during switching events by causing transient overcurrent pulses can be damaging system. A commutation method CSI topologies addresses is presented this paper. Several key aspects...

Inverter-fed induction machines' iron loss characteristics become more complicated because of the harmonics brought by pulse width modulated (PWM) voltage-source power supplies. There are two main difficulties associated with analyzing motors, i.e., identification rotor flux density and accurate prediction loss. In order to reveal inverter-fed especially on side, a computationally efficient method using data from single supply fundamental frequency cycle (supply cycle) is proposed. With...

The combination of wide-bandgap (WBG)-enabled current-source inverter (CSI) and integrated motor drive (IMD) has been shown to provide several advantages compared voltage-source (VSI)-based drives either with long output cables or in IMD configurations. However, the higher conduction loss associated using conventional switches series diodes CSI makes thermal cooling CSI-IMD more challenging. To relieve this challenge, new soft-switching topologies bidirectional (BD) have designed, built,...

Advances in wide bandgap (WBG) power switches are creating opportunities for significant mass and volume reductions of electronic inverters by shrinking passive cooling components. The miniaturization achieved using WBG devices including their potential high-temperature operation is highly appealing a new approach to integrated motor drives (IMDs) that uses current source (CSIs). Since CSIs use an inductor as dc-link energy storage, class inductors operate efficiently at high-frequency high...

Overvoltages and other transient phenomena caused by the fast switching characteristics of wide-bandgap (WBG) power switches in hard-switched voltage-source inverters (VSIs) has raised concerns about their use motor drives. A comparative study WBG-based two-level VSIs current-source (CSIs) been carried out using different lengths non-shielded shielded cables to connect inverter machine. Experimental test results are presented that highlight two during machine excitation. capacitive charging...

Due to the high forward voltage drop of reverse-blocking (RB) switches, conventional current-source inverters (CSIs) typically suffer efficiency penalties. Bidirectional (BD) on other hand, can also block reverse voltages but with less conduction loss than RB making them more attractive candidates for CSI switches. This article discusses difficulties inherent in implementing BD switches CSIs, such as dc-link overvoltage, interphase short circuit, complicated commutation schemes, body diode...

Wide-bandgap (WBG) monolithic bidirectional (BD) power devices that feature reverse voltage blocking (RVB) capabilities are well suited for current-source inverters (CSIs) since they eliminate the need to add lossy diodes in series with conventional devices. With efficiency improvements enabled by such WBG BD devices, CSIs become significantly more attractive a wide range of applications. However, there is still knowledge gap regarding operation at high switching frequencies (100s kHz) using...

Effective cooling system design is one of the biggest challenges in integrated motor drives (IMDs), where power electronics and electric machine are tightly co-packaged. Reducing size for a seamless integration increases thermal impedance system, leading to inefficient heat dissipation. This paper presents method silicon carbide (SiC) based IMD using combination analytical model, finite element analysis (FEA), computational fluid dynamics (CFD). An model 4-layer printed circuit board (PCB)...

The miniaturization of power electronics is made possible by using wide-bandgap (WBG) switches that can operate at high switching frequencies and temperatures. Thus, WBG devices open the door for promising opportunities development integrated motor drives (IMDs) places electric machine in same enclosure. concept IMDs replace traditional adjustable speed consisting inverter connected a cable. However, WBG-based still faces many challenges regarding electromagnetic interference, cooling,...

In pulsewidth-modulated (PWM) inverters, common-mode (CM) voltage and associated conducted CM electromagnetic interference (EMI) can cause motor bearing failures, ground leakage current, audio susceptibility issues. When wide bandgap (WBG) devices are used to construct a voltage-source inverter (VSI), the EMI issues become more challenging. The current-source (CSI) is an alternative, which produces sinusoidal output waveforms, making it promising topology for reducing in power converters....

Traditional current-source inverters (CSI) using silicon-based reverse-voltage-blocking (RB) switches typically have high conduction loss, low switching frequency, and bulky size. New bidirectional (BD) (also called four-quadrant switches) built from wide-bandgap semiconductor materials such as gallium nitride (GaN) silicon carbide (SiC) offer both RB capability loss that make them appealing candidates for increasing the CSI's efficiency. This paper proposes a new modulation scheme an...

Three-phase voltage-source converters (VSCs) and current-source (CSCs) have multiple dualities. This paper specifically focuses on examining the conducted common-mode (CM) EMI of VSCs CSCs when wide bandgap (WBG) devices are used. First, CM signature two with both rectifier inverter stages examined. The benefits CSC over VSC in terms lower identified. impact adding chokes at different locations use an LCL filter for In addition, associated having only stage or each types Finally, a promising...

Conventional current-source inverters (CSIs) using reverse-voltage-blocking (RB) switches typically suffer efficiency penalties due to the high forward voltage drop of RB switches. In contrast, monolithic bidirectional (BD) have capability but with lower conduction loss than switches, making them more appealing candidates for CSI This paper describes how implementing BD in CSIs creates challenges including complicated commutation schemes, gate control signals, and tradeoffs between switching...