舰船电力系统电能管理.doc
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舰船电力系统电能管理,摘 要舰船电力系统在实际运行中，由于战斗损耗、操作失误或设备故障等问题，可能使系统处于非正常状态，严重威胁舰船电力系统可靠运行。因此，在舰船建造初期合理规划舰船电能管理方案，使其既满足电力系统安全经济运行，又满足未来供电负荷增长需求；同时，在实际运行中检测和控制舰船区域配电系统的电能，对保障舰船安全运行都是非常有必要的...
内容介绍
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摘 要
舰船电力系统在实际运行中，由于战斗损耗、操作失误或设备故障等问题，可能使系统处于非正常状态，严重威胁舰船电力系统可靠运行。因此，在舰船建造初期合理规划舰船电能管理方案，使其既满足电力系统安全经济运行，又满足未来供电负荷增长需求；同时，在实际运行中检测和控制舰船区域配电系统的电能，对保障舰船安全运行都是非常有必要的。
本文提出了一种基于舰船电力系统的潮流分析算法，利用该算法在电力系统规划时可以有效进行舰船配电网电能管理和分析；同时设计了一种基于DSP(数字信号处理器)的适合用于船舶环境下的电能管理系统，利用DSP芯片强大的数据处理和智能控制功能进行区域配电网的电能管理，为舰船电力系统电能管理提供可靠的依据和方法。
借鉴用于配电网络三相潮流计算的前推回代方法，建立了适合舰船电力系统特点的三相潮流计算模型和方法。首先根据舰船电力系统结构特点，建立了船用配网各种元件的相域模型，对馈线、变压器、电容器、发电机等元件全部采用三相模型。在此基础上对用于配电网络的前推回代潮流计算方法进行了改进，使之能处理PV节点问题，同时能够处理三相变压器模型。对于舰船电力系统可能存在的少环结构运行方式，给出了一种基于叠加原理的少环配电网络三相潮流计算方法。通过叠加原理将配电网络分解为两个容易求解的纯辐射型网络和纯环状网络，两种网络的求解结果叠加并迭代求取整个网络的三相潮流。本文利用一个典型的舰船电力系统进行了验算，给出了计算结果。结果表明，所提出的算法能够适用于舰船电力系统的潮流分析，并具有迭代次数少，计算速度快的特点。
根据舰船电力系统的特点设计了适用于区域配电系统的电能管理系统的软硬件。硬件设计包括滤波电路、信号调理电路、光耦隔离电路、A/D采样电路、控制电路、CAN通信接口电路和DSP最小系统等；软件设计包括程序初始化、A/D采样程序、数据处理算法程序、CAN通信接口程序、上位机人机界面等。考虑到船舶电网和陆上电网的不同点，着重加强了系统的抗干扰设计和数据通信稳定性的设计，最后在船舶电站实验室进行软硬件联调测试，获得测试结果。实验表明，本文提出的潮流算法能快速高效的分析和管理舰船电力系统的电能走向，本电能管理系统具有很高的测量控制性，通信稳定、可靠，有良好的应用前景。
关键词 舰船电力系统；电能管理；潮流计算；区域配电
Abstract
In actual operation, due to fighting corruption, operational errors or equipment failures and other problems, the ships’ power system may be running on non-normal states, which seriously threaten the system stability and reliable operation. At the same time as the increased use of pulsed power systems, will also affect the stability of the ships’ power system operation. Thus, in the early stages of the manufacture of ships, rational planning of ship energy management program, to make the program both to meet the safe operation of power systems, but also to meet future electricity load growth needs; meanwhile, detecting and controling the power of the ships' power system, and to ensure the safe operation of ships. These are very necessary for he safe operations of ships’ power system.
This thesis presents a flow analysis algorithm which based on the ships’ power system, the thesis also deals mainly with a power management system which based on DSP (Digital Signal Processor) and suited for shipboard environment. With the powerful data processing and intelligent function chip, the system can manage the power of the regional power system extremely well. So it can provide accurate proof in testing shipboard power management.
A modified forward/backward sweep algorithm for shipboard power system load flow calculation is proposed in this thesis, which is derived from the traditional three-phase backward/forward power flow method for distribution network. Firstly, three-phase models for shipboard power system elements are established according to the features of SPS. Based on this, the backward/forward power flow method for radial distribution network is extended in order to deal with PV node and transformer model. For weakly meshed distribution network, a new three-phase power flow method based on the superposition principle is presented. The weakly meshed network is firstly divided into two networks using the superposition principle: one is the pure radial network and another is the pure meshed network. Three-phase power flow is solved separately on both the networks. The solutions are superposed together, and the final power flow solution is obtained by repeating to solve the power flow of the two networks. The presented method is tested by a typical shipboard power system, and the power flow solution is given. The results indicate that the proposed method is effective.
According to the characteristics of ships’power system, designing the hardware and software of energy management system for the regional distribution system. The hardware design includes filter circuit, signal conditioning circuit, optocopler isolation circuit, A/D sampling circuit control circuit, CAN communication circuit and DSP minimum system. The software design includes the initialization program, A/D sampling program, data processing algorithm program, CAN communication program and man-machine interface program. Taking into account the differences between the ship power grid and land powe..
舰船电力系统在实际运行中，由于战斗损耗、操作失误或设备故障等问题，可能使系统处于非正常状态，严重威胁舰船电力系统可靠运行。因此，在舰船建造初期合理规划舰船电能管理方案，使其既满足电力系统安全经济运行，又满足未来供电负荷增长需求；同时，在实际运行中检测和控制舰船区域配电系统的电能，对保障舰船安全运行都是非常有必要的。
本文提出了一种基于舰船电力系统的潮流分析算法，利用该算法在电力系统规划时可以有效进行舰船配电网电能管理和分析；同时设计了一种基于DSP(数字信号处理器)的适合用于船舶环境下的电能管理系统，利用DSP芯片强大的数据处理和智能控制功能进行区域配电网的电能管理，为舰船电力系统电能管理提供可靠的依据和方法。
借鉴用于配电网络三相潮流计算的前推回代方法，建立了适合舰船电力系统特点的三相潮流计算模型和方法。首先根据舰船电力系统结构特点，建立了船用配网各种元件的相域模型，对馈线、变压器、电容器、发电机等元件全部采用三相模型。在此基础上对用于配电网络的前推回代潮流计算方法进行了改进，使之能处理PV节点问题，同时能够处理三相变压器模型。对于舰船电力系统可能存在的少环结构运行方式，给出了一种基于叠加原理的少环配电网络三相潮流计算方法。通过叠加原理将配电网络分解为两个容易求解的纯辐射型网络和纯环状网络，两种网络的求解结果叠加并迭代求取整个网络的三相潮流。本文利用一个典型的舰船电力系统进行了验算，给出了计算结果。结果表明，所提出的算法能够适用于舰船电力系统的潮流分析，并具有迭代次数少，计算速度快的特点。
根据舰船电力系统的特点设计了适用于区域配电系统的电能管理系统的软硬件。硬件设计包括滤波电路、信号调理电路、光耦隔离电路、A/D采样电路、控制电路、CAN通信接口电路和DSP最小系统等；软件设计包括程序初始化、A/D采样程序、数据处理算法程序、CAN通信接口程序、上位机人机界面等。考虑到船舶电网和陆上电网的不同点，着重加强了系统的抗干扰设计和数据通信稳定性的设计，最后在船舶电站实验室进行软硬件联调测试，获得测试结果。实验表明，本文提出的潮流算法能快速高效的分析和管理舰船电力系统的电能走向，本电能管理系统具有很高的测量控制性，通信稳定、可靠，有良好的应用前景。
关键词 舰船电力系统；电能管理；潮流计算；区域配电
Abstract
In actual operation, due to fighting corruption, operational errors or equipment failures and other problems, the ships’ power system may be running on non-normal states, which seriously threaten the system stability and reliable operation. At the same time as the increased use of pulsed power systems, will also affect the stability of the ships’ power system operation. Thus, in the early stages of the manufacture of ships, rational planning of ship energy management program, to make the program both to meet the safe operation of power systems, but also to meet future electricity load growth needs; meanwhile, detecting and controling the power of the ships' power system, and to ensure the safe operation of ships. These are very necessary for he safe operations of ships’ power system.
This thesis presents a flow analysis algorithm which based on the ships’ power system, the thesis also deals mainly with a power management system which based on DSP (Digital Signal Processor) and suited for shipboard environment. With the powerful data processing and intelligent function chip, the system can manage the power of the regional power system extremely well. So it can provide accurate proof in testing shipboard power management.
A modified forward/backward sweep algorithm for shipboard power system load flow calculation is proposed in this thesis, which is derived from the traditional three-phase backward/forward power flow method for distribution network. Firstly, three-phase models for shipboard power system elements are established according to the features of SPS. Based on this, the backward/forward power flow method for radial distribution network is extended in order to deal with PV node and transformer model. For weakly meshed distribution network, a new three-phase power flow method based on the superposition principle is presented. The weakly meshed network is firstly divided into two networks using the superposition principle: one is the pure radial network and another is the pure meshed network. Three-phase power flow is solved separately on both the networks. The solutions are superposed together, and the final power flow solution is obtained by repeating to solve the power flow of the two networks. The presented method is tested by a typical shipboard power system, and the power flow solution is given. The results indicate that the proposed method is effective.
According to the characteristics of ships’power system, designing the hardware and software of energy management system for the regional distribution system. The hardware design includes filter circuit, signal conditioning circuit, optocopler isolation circuit, A/D sampling circuit control circuit, CAN communication circuit and DSP minimum system. The software design includes the initialization program, A/D sampling program, data processing algorithm program, CAN communication program and man-machine interface program. Taking into account the differences between the ship power grid and land powe..
