A fixed-frequency Sliding-mode control in a cascade scheme for the Half-bridge Bidirectional DC-DC converter

Control of a Charger/Discharger DC/DC Converter with Improved Disturbance Rejection for Bus Regulation

“…The implementation of the sliding-mode controller requires a hysteresis band to limit the switching frequency [46,48]. The insertion of a hysteresis band [−H, +H] changes the control law imposed by the reachability conditions (17) and (18) as follows:…”

“…Similarly, the work reported in [18] proposed a cascade control of a DC/DC converter based on a half-bridge bidirectional topology. In this case, the current control is designed with a fixed-frequency SMC to reduce electromagnetic interferences (EMI).…”

“…Another important application in which batteries are extensively used is the construction of stand-alone renewable power systems, which are common solutions for remote energy generation and urban/distributed energy systems for pollution reduction [13,14]. A common structure of such power systems based on renewable generators and batteries is presented in Figure 1 [15][16][17][18][19][20][21][22]. Such an architecture has a renewable energy source as the main energy generator, e.g., photovoltaic modules or fuel cell, interacting with a unidirectional DC/DC converter that is responsible for optimizing the source operating conditions.…”

“…The charger/discharger converter is controlled to regulate the DC bus voltage within safe limits and simultaneously impose a given energy flow between the battery and the DC bus. Due to safety implications for the source and load, there are many research papers focused on regulating the DC bus voltage using charger/discharger converters: some of them are based on linear control [16,[23][24][25][26], others are based on intelligent control [13,[27][28][29][30][31][32], and others are based on non-linear control strategies [15,[17][18][19][20][21][22]. In particular, sliding-mode controllers (SMCs) have been widely used for this application to ensure global stability, robustness to parameter tolerances, higher bandwidth compared with classical linear controllers [17,22,33], and reduced implementation cost and complexity compared with intelligent controllers [31,34].…”

Voltage regulation of the Y‐source boost DC–DC converter considering effects of leakage inductances based on cascaded sliding‐mode control

“…Hence various sliding surfaces are proposed to control the output voltage of conventional DC-DC converters which mainly are buck, boost and Cuk converters [11][12][13][14][15][16][17][18]. An equivalent control is utilised to SMC to provide a fixed switching frequency [15][16][17][18][19][20][21]. In [22,23], the SMC approach has been presented for ZSI and converter, respectively, but no experimental result has been studied.…”